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Build ID: 327657
Analysis Summary:
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[linux-next] LinuxNextTracking branch, master, updated. next-20200720
by batmanï¼ open-mesh.org 20 Jul '20
by batmanï¼ open-mesh.org 20 Jul '20
20 Jul '20
The following commit has been merged in the master branch:
commit 5e9818ec1190517175ec44052c09835705a9152e
Merge: eb92a8cdbeb492602f2a1e11f2103f91c03827cb 2750e3608b796cd913564387ffd40f276e50ad21
Author: Stephen Rothwell <sfr(a)canb.auug.org.au>
Date: Mon Jul 20 17:32:18 2020 +1000
Merge remote-tracking branch 'set_fs/set_fs-rw'
# Conflicts:
# arch/powerpc/mm/numa.c
# drivers/acpi/battery.c
# fs/btrfs/file.c
diff --combined Documentation/process/clang-format.rst
index 82676e5a7c6e,7f04493cba4f..57186ae91365
--- a/Documentation/process/clang-format.rst
+++ b/Documentation/process/clang-format.rst
@@@ -32,7 -32,7 +32,7 @@@ Linux distributions for a long time. Se
your repositories. Otherwise, you can either download pre-built
LLVM/clang binaries or build the source code from:
- http://releases.llvm.org/download.html
+ https://releases.llvm.org/download.html
See more information about the tool at:
@@@ -136,7 -136,7 +136,7 @@@ In particular, some very common ones yo
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
@@@ -147,7 -147,7 +147,7 @@@
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
diff --combined arch/arm/mm/alignment.c
index f4bfc1cac91a,412cab88402a..8666935340db
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@@ -164,7 -164,7 +164,7 @@@ static ssize_t alignment_proc_write(str
static const struct proc_ops alignment_proc_ops = {
.proc_open = alignment_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = alignment_proc_write,
@@@ -799,7 -799,7 +799,7 @@@ static int alignment_get_thumb(struct p
static int
do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
- union offset_union uninitialized_var(offset);
+ union offset_union offset;
unsigned long instrptr;
int (*handler)(unsigned long addr, u32 instr, struct pt_regs *regs);
unsigned int type;
diff --combined arch/powerpc/mm/ptdump/hashpagetable.c
index 5b8bd34cd3a1,94a6124f9740..930d9cfd6316
--- a/arch/powerpc/mm/ptdump/hashpagetable.c
+++ b/arch/powerpc/mm/ptdump/hashpagetable.c
@@@ -258,7 -258,7 +258,7 @@@ static int pseries_find(unsigned long e
for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) {
lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes);
- if (lpar_rc != H_SUCCESS)
+ if (lpar_rc)
continue;
for (j = 0; j < 4; j++) {
if (HPTE_V_COMPARE(ptes[j].v, want_v) &&
@@@ -533,7 -533,7 +533,7 @@@ static int ptdump_open(struct inode *in
static const struct file_operations ptdump_fops = {
.open = ptdump_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined arch/powerpc/platforms/pseries/lpar.c
index f71ff2c94efe,2b13a67d60e2..cc174e6bb5da
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@@ -40,7 -40,6 +40,7 @@@
#include <asm/fadump.h>
#include <asm/asm-prototypes.h>
#include <asm/debugfs.h>
+#include <asm/dtl.h>
#include "pseries.h"
@@@ -585,7 -584,7 +585,7 @@@ static int vcpudispatch_stats_open(stru
static const struct proc_ops vcpudispatch_stats_proc_ops = {
.proc_open = vcpudispatch_stats_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = vcpudispatch_stats_write,
.proc_lseek = seq_lseek,
.proc_release = single_release,
@@@ -629,7 -628,7 +629,7 @@@ static int vcpudispatch_stats_freq_open
static const struct proc_ops vcpudispatch_stats_freq_proc_ops = {
.proc_open = vcpudispatch_stats_freq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = vcpudispatch_stats_freq_write,
.proc_lseek = seq_lseek,
.proc_release = single_release,
diff --combined arch/um/kernel/process.c
index 26b5e243d3fc,f3e4bd48f6d5..77caa0202fc3
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@@ -152,7 -152,7 +152,7 @@@ void fork_handler(void
userspace(¤t->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
-int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
+int copy_thread(unsigned long clone_flags, unsigned long sp,
unsigned long arg, struct task_struct * p, unsigned long tls)
{
void (*handler)(void);
@@@ -312,7 -312,7 +312,7 @@@ static ssize_t sysemu_proc_write(struc
static const struct proc_ops sysemu_proc_ops = {
.proc_open = sysemu_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = sysemu_proc_write,
diff --combined arch/x86/mm/pat/set_memory.c
index d1b2a889f035,95b12dd5bf0e..355de93199ee
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@@ -135,7 -135,7 +135,7 @@@ static inline void cpa_inc_2m_checked(v
static inline void cpa_inc_4k_install(void)
{
- cpa_4k_install++;
+ data_race(cpa_4k_install++);
}
static inline void cpa_inc_lp_sameprot(int level)
@@@ -173,7 -173,7 +173,7 @@@ static int cpastats_open(struct inode *
static const struct file_operations cpastats_fops = {
.open = cpastats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined block/blk-mq-debugfs.c
index 3f09bcb8a6fd,4e427fc88a26..5c8333d1ceed
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@@ -404,7 -404,8 +404,7 @@@ static bool hctx_show_busy_rq(struct re
const struct show_busy_params *params = data;
if (rq->mq_hctx == params->hctx)
- __blk_mq_debugfs_rq_show(params->m,
- list_entry_rq(&rq->queuelist));
+ __blk_mq_debugfs_rq_show(params->m, rq);
return true;
}
@@@ -772,7 -773,7 +772,7 @@@ static int blk_mq_debugfs_release(struc
static const struct file_operations blk_mq_debugfs_fops = {
.open = blk_mq_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = blk_mq_debugfs_write,
.llseek = seq_lseek,
.release = blk_mq_debugfs_release,
@@@ -826,6 -827,9 +826,6 @@@ void blk_mq_debugfs_register(struct req
struct blk_mq_hw_ctx *hctx;
int i;
- q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent),
- blk_debugfs_root);
-
debugfs_create_files(q->debugfs_dir, q, blk_mq_debugfs_queue_attrs);
/*
@@@ -856,7 -860,9 +856,7 @@@
void blk_mq_debugfs_unregister(struct request_queue *q)
{
- debugfs_remove_recursive(q->debugfs_dir);
q->sched_debugfs_dir = NULL;
- q->debugfs_dir = NULL;
}
static void blk_mq_debugfs_register_ctx(struct blk_mq_hw_ctx *hctx,
diff --combined drivers/block/nbd.c
index 3ff4054d6834,4c54d366afde..25208ff7166e
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@@ -784,7 -784,6 +784,7 @@@ static void recv_work(struct work_struc
struct nbd_device *nbd = args->nbd;
struct nbd_config *config = nbd->config;
struct nbd_cmd *cmd;
+ struct request *rq;
while (1) {
cmd = nbd_read_stat(nbd, args->index);
@@@ -797,9 -796,7 +797,9 @@@
break;
}
- blk_mq_complete_request(blk_mq_rq_from_pdu(cmd));
+ rq = blk_mq_rq_from_pdu(cmd);
+ if (likely(!blk_should_fake_timeout(rq->q)))
+ blk_mq_complete_request(rq);
}
atomic_dec(&config->recv_threads);
wake_up(&config->recv_wq);
@@@ -1547,7 -1544,7 +1547,7 @@@ static int nbd_dbg_tasks_open(struct in
static const struct file_operations nbd_dbg_tasks_ops = {
.open = nbd_dbg_tasks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1582,7 -1579,7 +1582,7 @@@ static int nbd_dbg_flags_open(struct in
static const struct file_operations nbd_dbg_flags_ops = {
.open = nbd_dbg_flags_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/block/pktcdvd.c
index 4becc1efe775,50c6d6eacb59..c81f637141c0
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@@ -36,7 -36,7 +36,7 @@@
* block device, assembling the pieces to full packets and queuing them to the
* packet I/O scheduler.
*
- * At the top layer there is a custom make_request_fn function that forwards
+ * At the top layer there is a custom ->submit_bio function that forwards
* read requests directly to the iosched queue and puts write requests in the
* unaligned write queue. A kernel thread performs the necessary read
* gathering to convert the unaligned writes to aligned writes and then feeds
@@@ -464,7 -464,7 +464,7 @@@ static int pkt_debugfs_fops_open(struc
static const struct file_operations debug_fops = {
.open = pkt_debugfs_fops_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -913,7 -913,7 +913,7 @@@ static void pkt_iosched_process_queue(s
}
atomic_inc(&pd->cdrw.pending_bios);
- generic_make_request(bio);
+ submit_bio_noacct(bio);
}
}
@@@ -2428,15 -2428,15 +2428,15 @@@ static void pkt_make_request_write(stru
}
}
-static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t pkt_submit_bio(struct bio *bio)
{
struct pktcdvd_device *pd;
char b[BDEVNAME_SIZE];
struct bio *split;
- blk_queue_split(q, &bio);
+ blk_queue_split(&bio);
- pd = q->queuedata;
+ pd = bio->bi_disk->queue->queuedata;
if (!pd) {
pr_err("%s incorrect request queue\n", bio_devname(bio, b));
goto end_io;
@@@ -2480,7 -2480,7 +2480,7 @@@
split = bio;
}
- pkt_make_request_write(q, split);
+ pkt_make_request_write(bio->bi_disk->queue, split);
} while (split != bio);
return BLK_QC_T_NONE;
@@@ -2685,7 -2685,6 +2685,7 @@@ static char *pkt_devnode(struct gendis
static const struct block_device_operations pktcdvd_ops = {
.owner = THIS_MODULE,
+ .submit_bio = pkt_submit_bio,
.open = pkt_open,
.release = pkt_close,
.ioctl = pkt_ioctl,
@@@ -2750,7 -2749,7 +2750,7 @@@ static int pkt_setup_dev(dev_t dev, dev
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
disk->private_data = pd;
- disk->queue = blk_alloc_queue(pkt_make_request, NUMA_NO_NODE);
+ disk->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!disk->queue)
goto out_mem2;
diff --combined drivers/block/rsxx/core.c
index 7e261224ff10,1adfd0f273b4..e631749e14ca
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@@ -209,7 -209,7 +209,7 @@@ static const struct file_operations deb
static const struct file_operations debugfs_stats_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -217,7 -217,7 +217,7 @@@
static const struct file_operations debugfs_pci_regs_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_pci_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -562,15 -562,13 +562,15 @@@ static int rsxx_eeh_frozen(struct pci_d
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
return 0;
@@@ -627,7 -625,7 +627,7 @@@ static int rsxx_eeh_fifo_flush_poll(str
}
static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev,
- enum pci_channel_state error)
+ pci_channel_state_t error)
{
int st;
@@@ -713,15 -711,15 +713,15 @@@ static pci_ers_result_t rsxx_slot_reset
failed_hw_buffers_init:
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev,
- STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev,
- COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
failed_hw_setup:
rsxx_eeh_failure(dev);
diff --combined drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
index 138759dc8190,52c7785c0db1..0bf8f29c5ae8
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
@@@ -185,8 -185,7 +185,8 @@@ static struct sun8i_ce_alg_template ce_
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -212,8 -211,7 +212,8 @@@
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -238,8 -236,7 +238,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -265,8 -262,7 +265,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -314,7 -310,7 +314,7 @@@ static int sun8i_ce_dbgfs_open(struct i
static const struct file_operations sun8i_ce_debugfs_fops = {
.owner = THIS_MODULE,
.open = sun8i_ce_dbgfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
index 9a23515783a6,fde536469527..d9767e2c84d9
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
@@@ -169,8 -169,7 +169,8 @@@ static struct sun8i_ss_alg_template ss_
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -196,8 -195,7 +196,8 @@@
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -222,8 -220,7 +222,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -249,8 -246,7 +249,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -298,7 -294,7 +298,7 @@@ static int sun8i_ss_dbgfs_open(struct i
static const struct file_operations sun8i_ss_debugfs_fops = {
.owner = THIS_MODULE,
.open = sun8i_ss_dbgfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/crypto/amlogic/amlogic-gxl-core.c
index 466552acbbbb,112be2441369..be4dcdb225d8
--- a/drivers/crypto/amlogic/amlogic-gxl-core.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
@@@ -54,8 -54,7 +54,8 @@@ static struct meson_alg_template mc_alg
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -80,8 -79,7 +80,8 @@@
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -127,7 -125,7 +127,7 @@@ static int meson_dbgfs_open(struct inod
static const struct file_operations meson_debugfs_fops = {
.owner = THIS_MODULE,
.open = meson_dbgfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/crypto/hisilicon/qm.c
index 6527c53b073f,a5c3e21e0fe6..b594dc72807c
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@@ -1054,7 -1054,7 +1054,7 @@@ static int qm_regs_open(struct inode *i
static const struct file_operations qm_regs_fops = {
.owner = THIS_MODULE,
.open = qm_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.release = single_release,
};
@@@ -1064,10 -1064,19 +1064,10 @@@ static ssize_t qm_cmd_read(struct file
char buf[QM_DBG_READ_LEN];
int len;
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
-
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n",
- "Please echo help to cmd to get help information");
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n",
+ "Please echo help to cmd to get help information");
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
-
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static void *qm_ctx_alloc(struct hisi_qm *qm, size_t ctx_size,
@@@ -1732,7 -1741,7 +1732,7 @@@ void hisi_qm_release_qp(struct hisi_qp
}
EXPORT_SYMBOL_GPL(hisi_qm_release_qp);
-static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
+static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
{
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
@@@ -1804,7 -1813,7 +1804,7 @@@ static int qm_start_qp_nolock(struct hi
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
int qp_id = qp->qp_id;
- int pasid = arg;
+ u32 pasid = arg;
int ret;
if (!qm_qp_avail_state(qm, qp, QP_START))
@@@ -2170,12 -2179,8 +2170,12 @@@ static int qm_alloc_uacce(struct hisi_q
.flags = UACCE_DEV_SVA,
.ops = &uacce_qm_ops,
};
+ int ret;
- strncpy(interface.name, pdev->driver->name, sizeof(interface.name));
+ ret = strscpy(interface.name, pdev->driver->name,
+ sizeof(interface.name));
+ if (ret < 0)
+ return -ENAMETOOLONG;
uacce = uacce_alloc(&pdev->dev, &interface);
if (IS_ERR(uacce))
@@@ -2686,12 -2691,24 +2686,12 @@@ static ssize_t qm_status_read(struct fi
{
struct hisi_qm *qm = filp->private_data;
char buf[QM_DBG_READ_LEN];
- int val, cp_len, len;
-
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
+ int val, len;
val = atomic_read(&qm->status.flags);
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- if (!len)
- return -EFAULT;
-
- cp_len = copy_to_user(buffer, buf, len);
- if (cp_len)
- return -EFAULT;
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static const struct file_operations qm_status_fops = {
diff --combined drivers/crypto/qat/qat_common/adf_cfg.c
index ac462796cefc,4b77c6f05b3e..44c7027f8096
--- a/drivers/crypto/qat/qat_common/adf_cfg.c
+++ b/drivers/crypto/qat/qat_common/adf_cfg.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/list.h>
@@@ -66,7 -110,7 +66,7 @@@ static int qat_dev_cfg_open(struct inod
static const struct file_operations qat_dev_cfg_fops = {
.open = qat_dev_cfg_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/crypto/qat/qat_common/adf_transport_debug.c
index 2a2eccbf56ec,6133a869aeb1..659917c848d9
--- a/drivers/crypto/qat/qat_common/adf_transport_debug.c
+++ b/drivers/crypto/qat/qat_common/adf_transport_debug.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
@@@ -98,7 -142,7 +98,7 @@@ static int adf_ring_open(struct inode *
static const struct file_operations adf_ring_debug_fops = {
.open = adf_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
@@@ -209,7 -253,7 +209,7 @@@ static int adf_bank_open(struct inode *
static const struct file_operations adf_bank_debug_fops = {
.open = adf_bank_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/firmware/tegra/bpmp-debugfs.c
index c1bbba9ee93a,3f0a89ce131a..e861d407b7d1
--- a/drivers/firmware/tegra/bpmp-debugfs.c
+++ b/drivers/firmware/tegra/bpmp-debugfs.c
@@@ -4,14 -4,11 +4,14 @@@
*/
#include <linux/debugfs.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <soc/tegra/bpmp.h>
#include <soc/tegra/bpmp-abi.h>
+static DEFINE_MUTEX(bpmp_debug_lock);
+
struct seqbuf {
char *buf;
size_t pos;
@@@ -99,354 -96,6 +99,354 @@@ static const char *get_filename(struct
return filename;
}
+static int mrq_debug_open(struct tegra_bpmp *bpmp, const char *name,
+ uint32_t *fd, uint32_t *len, bool write)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(write ? CMD_DEBUG_OPEN_WO : CMD_DEBUG_OPEN_RO),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ ssize_t sz_name;
+ int err = 0;
+
+ sz_name = strscpy(req.fop.name, name, sizeof(req.fop.name));
+ if (sz_name < 0) {
+ pr_err("File name too large: %s\n", name);
+ return -EINVAL;
+ }
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ *len = resp.fop.datalen;
+ *fd = resp.fop.fd;
+
+ return 0;
+}
+
+static int mrq_debug_close(struct tegra_bpmp *bpmp, uint32_t fd)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_CLOSE),
+ .frd = {
+ .fd = fd,
+ },
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ int err = 0;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name,
+ char *data, size_t sz_data, uint32_t *nbytes)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_READ),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ int remaining, err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 0);
+ if (err)
+ goto out;
+
+ if (len > sz_data) {
+ err = -EFBIG;
+ goto close;
+ }
+
+ req.frd.fd = fd;
+ remaining = len;
+
+ while (remaining > 0) {
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ if (resp.frd.readlen > remaining) {
+ pr_err("%s: read data length invalid\n", __func__);
+ err = -EINVAL;
+ goto close;
+ }
+
+ memcpy(data, resp.frd.data, resp.frd.readlen);
+ data += resp.frd.readlen;
+ remaining -= resp.frd.readlen;
+ }
+
+ *nbytes = len;
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int mrq_debug_write(struct tegra_bpmp *bpmp, const char *name,
+ uint8_t *data, size_t sz_data)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_WRITE)
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ size_t remaining;
+ int err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 1);
+ if (err)
+ goto out;
+
+ if (sz_data > len) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ req.fwr.fd = fd;
+ remaining = sz_data;
+
+ while (remaining > 0) {
+ len = min(remaining, sizeof(req.fwr.data));
+ memcpy(req.fwr.data, data, len);
+ req.fwr.datalen = len;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ data += req.fwr.datalen;
+ remaining -= req.fwr.datalen;
+ }
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int bpmp_debug_show(struct seq_file *m, void *p)
+{
+ struct file *file = m->private;
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ uint32_t nbytes = 0;
+ size_t len;
+ int err;
+
+ len = seq_get_buf(m, &databuf);
+ if (!databuf)
+ return -ENOMEM;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ err = mrq_debug_read(bpmp, filename, databuf, len, &nbytes);
+ if (!err)
+ seq_commit(m, nbytes);
+
+ return err;
+}
+
+static ssize_t bpmp_debug_store(struct file *file, const char __user *buf,
+ size_t count, loff_t *f_pos)
+{
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ ssize_t err;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ databuf = kmalloc(count, GFP_KERNEL);
+ if (!databuf)
+ return -ENOMEM;
+
+ if (copy_from_user(databuf, buf, count)) {
+ err = -EFAULT;
+ goto free_ret;
+ }
+
+ err = mrq_debug_write(bpmp, filename, databuf, count);
+
+free_ret:
+ kfree(databuf);
+
+ return err ?: count;
+}
+
+static int bpmp_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open_size(file, bpmp_debug_show, file, SZ_256K);
+}
+
+static const struct file_operations bpmp_debug_fops = {
+ .open = bpmp_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = bpmp_debug_store,
+ .release = single_release,
+};
+
+static int bpmp_populate_debugfs_inband(struct tegra_bpmp *bpmp,
+ struct dentry *parent,
+ char *ppath)
+{
+ const size_t pathlen = SZ_256;
+ const size_t bufsize = SZ_16K;
+ uint32_t dsize, attrs = 0;
+ struct dentry *dentry;
+ struct seqbuf seqbuf;
+ char *buf, *pathbuf;
+ const char *name;
+ int err = 0;
+
+ if (!bpmp || !parent || !ppath)
+ return -EINVAL;
+
+ buf = kmalloc(bufsize, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pathbuf = kzalloc(pathlen, GFP_KERNEL);
+ if (!pathbuf) {
+ kfree(buf);
+ return -ENOMEM;
+ }
+
+ err = mrq_debug_read(bpmp, ppath, buf, bufsize, &dsize);
+ if (err)
+ goto out;
+
+ seqbuf_init(&seqbuf, buf, dsize);
+
+ while (!seqbuf_eof(&seqbuf)) {
+ err = seqbuf_read_u32(&seqbuf, &attrs);
+ if (err)
+ goto out;
+
+ err = seqbuf_read_str(&seqbuf, &name);
+ if (err < 0)
+ goto out;
+
+ if (attrs & DEBUGFS_S_ISDIR) {
+ size_t len;
+
+ dentry = debugfs_create_dir(name, parent);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
+ goto out;
+ }
+
+ len = strlen(ppath) + strlen(name) + 1;
+ if (len >= pathlen) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ strncpy(pathbuf, ppath, pathlen);
+ strncat(pathbuf, name, strlen(name));
+ strcat(pathbuf, "/");
+
+ err = bpmp_populate_debugfs_inband(bpmp, dentry,
+ pathbuf);
+ if (err < 0)
+ goto out;
+ } else {
+ umode_t mode;
+
+ mode = attrs & DEBUGFS_S_IRUSR ? 0400 : 0;
+ mode |= attrs & DEBUGFS_S_IWUSR ? 0200 : 0;
+ dentry = debugfs_create_file(name, mode, parent, bpmp,
+ &bpmp_debug_fops);
+ if (!dentry) {
+ err = -ENOMEM;
+ goto out;
+ }
+ }
+ }
+
+out:
+ kfree(pathbuf);
+ kfree(buf);
+
+ return err;
+}
+
static int mrq_debugfs_read(struct tegra_bpmp *bpmp,
dma_addr_t name, size_t sz_name,
dma_addr_t data, size_t sz_data,
@@@ -478,8 -127,6 +478,8 @@@
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.fop.nbytes;
@@@ -537,8 -184,6 +537,8 @@@ static int mrq_debugfs_dumpdir(struct t
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.dumpdir.nbytes;
@@@ -557,7 -202,7 +557,7 @@@ static int debugfs_show(struct seq_fil
char buf[256];
const char *filename;
size_t len, nbytes;
- int ret;
+ int err;
filename = get_filename(bpmp, file, buf, sizeof(buf));
if (!filename)
@@@ -571,24 -216,24 +571,24 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
len = strlen(filename);
strncpy(namevirt, filename, namesize);
- ret = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
+ err = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
&nbytes);
- if (!ret)
+ if (!err)
seq_write(m, datavirt, nbytes);
dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret;
+ return err;
}
static int debugfs_open(struct inode *inode, struct file *file)
@@@ -608,7 -253,7 +608,7 @@@ static ssize_t debugfs_store(struct fil
char fnamebuf[256];
const char *filename;
size_t len;
- int ret;
+ int err;
filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
if (!filename)
@@@ -622,7 -267,7 +622,7 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
@@@ -630,11 -275,11 +630,11 @@@
strncpy(namevirt, filename, namesize);
if (copy_from_user(datavirt, buf, count)) {
- ret = -EFAULT;
+ err = -EFAULT;
goto free_databuf;
}
- ret = mrq_debugfs_write(bpmp, namephys, len, dataphys,
+ err = mrq_debugfs_write(bpmp, namephys, len, dataphys,
count);
free_databuf:
@@@ -642,12 -287,12 +642,12 @@@
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret ?: count;
+ return err ?: count;
}
static const struct file_operations debugfs_fops = {
.open = debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.write = debugfs_store,
.release = single_release,
@@@ -705,66 -350,59 +705,66 @@@ static int bpmp_populate_dir(struct teg
return 0;
}
-static int create_debugfs_mirror(struct tegra_bpmp *bpmp, void *buf,
- size_t bufsize, struct dentry *root)
+static int bpmp_populate_debugfs_shmem(struct tegra_bpmp *bpmp)
{
struct seqbuf seqbuf;
+ const size_t sz = SZ_512K;
+ dma_addr_t phys;
+ size_t nbytes;
+ void *virt;
int err;
- bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
- if (!bpmp->debugfs_mirror)
+ virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
+ GFP_KERNEL | GFP_DMA32);
+ if (!virt)
return -ENOMEM;
- seqbuf_init(&seqbuf, buf, bufsize);
- err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+ err = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
if (err < 0) {
- debugfs_remove_recursive(bpmp->debugfs_mirror);
- bpmp->debugfs_mirror = NULL;
+ goto free;
+ } else if (nbytes > sz) {
+ err = -EINVAL;
+ goto free;
}
+ seqbuf_init(&seqbuf, virt, nbytes);
+ err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+free:
+ dma_free_coherent(bpmp->dev, sz, virt, phys);
+
return err;
}
int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
{
- dma_addr_t phys;
- void *virt;
- const size_t sz = SZ_256K;
- size_t nbytes;
- int ret;
struct dentry *root;
+ bool inband;
+ int err;
- if (!tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
+ inband = tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUG);
+
+ if (!inband && !tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
return 0;
root = debugfs_create_dir("bpmp", NULL);
if (!root)
return -ENOMEM;
- virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
- GFP_KERNEL | GFP_DMA32);
- if (!virt) {
- ret = -ENOMEM;
+ bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
+ if (!bpmp->debugfs_mirror) {
+ err = -ENOMEM;
goto out;
}
- ret = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
- if (ret < 0)
- goto free;
+ if (inband)
+ err = bpmp_populate_debugfs_inband(bpmp, bpmp->debugfs_mirror,
+ "/");
+ else
+ err = bpmp_populate_debugfs_shmem(bpmp);
- ret = create_debugfs_mirror(bpmp, virt, nbytes, root);
-free:
- dma_free_coherent(bpmp->dev, sz, virt, phys);
out:
- if (ret < 0)
- debugfs_remove(root);
+ if (err < 0)
+ debugfs_remove_recursive(root);
- return ret;
+ return err;
}
diff --combined drivers/gpio/gpiolib.c
index 80137c1b3cdc,0ca1acff0e37..25ef7ed30a06
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@@ -17,16 -17,20 +17,16 @@@
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/cdev.h>
#include <linux/fs.h>
-#include <linux/uaccess.h>
#include <linux/compat.h>
-#include <linux/anon_inodes.h>
#include <linux/file.h>
-#include <linux/kfifo.h>
-#include <linux/poll.h>
-#include <linux/timekeeping.h>
#include <uapi/linux/gpio.h>
#include "gpiolib.h"
#include "gpiolib-of.h"
#include "gpiolib-acpi.h"
+#include "gpiolib-cdev.h"
+#include "gpiolib-sysfs.h"
#define CREATE_TRACE_POINTS
#include <trace/events/gpio.h>
@@@ -421,6 -425,1105 +421,6 @@@ bool gpiochip_line_is_valid(const struc
}
EXPORT_SYMBOL_GPL(gpiochip_line_is_valid);
-/*
- * GPIO line handle management
- */
-
-/**
- * struct linehandle_state - contains the state of a userspace handle
- * @gdev: the GPIO device the handle pertains to
- * @label: consumer label used to tag descriptors
- * @descs: the GPIO descriptors held by this handle
- * @numdescs: the number of descriptors held in the descs array
- */
-struct linehandle_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *descs[GPIOHANDLES_MAX];
- u32 numdescs;
-};
-
-#define GPIOHANDLE_REQUEST_VALID_FLAGS \
- (GPIOHANDLE_REQUEST_INPUT | \
- GPIOHANDLE_REQUEST_OUTPUT | \
- GPIOHANDLE_REQUEST_ACTIVE_LOW | \
- GPIOHANDLE_REQUEST_BIAS_PULL_UP | \
- GPIOHANDLE_REQUEST_BIAS_PULL_DOWN | \
- GPIOHANDLE_REQUEST_BIAS_DISABLE | \
- GPIOHANDLE_REQUEST_OPEN_DRAIN | \
- GPIOHANDLE_REQUEST_OPEN_SOURCE)
-
-static int linehandle_validate_flags(u32 flags)
-{
- /* Return an error if an unknown flag is set */
- if (flags & ~GPIOHANDLE_REQUEST_VALID_FLAGS)
- return -EINVAL;
-
- /*
- * Do not allow both INPUT & OUTPUT flags to be set as they are
- * contradictory.
- */
- if ((flags & GPIOHANDLE_REQUEST_INPUT) &&
- (flags & GPIOHANDLE_REQUEST_OUTPUT))
- return -EINVAL;
-
- /*
- * Do not allow OPEN_SOURCE & OPEN_DRAIN flags in a single request. If
- * the hardware actually supports enabling both at the same time the
- * electrical result would be disastrous.
- */
- if ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) &&
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* OPEN_DRAIN and OPEN_SOURCE flags only make sense for output mode. */
- if (!(flags & GPIOHANDLE_REQUEST_OUTPUT) &&
- ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE)))
- return -EINVAL;
-
- /* Bias flags only allowed for input or output mode. */
- if (!((flags & GPIOHANDLE_REQUEST_INPUT) ||
- (flags & GPIOHANDLE_REQUEST_OUTPUT)) &&
- ((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (flags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- return 0;
-}
-
-static long linehandle_set_config(struct linehandle_state *lh,
- void __user *ip)
-{
- struct gpiohandle_config gcnf;
- struct gpio_desc *desc;
- int i, ret;
- u32 lflags;
- unsigned long *flagsp;
-
- if (copy_from_user(&gcnf, ip, sizeof(gcnf)))
- return -EFAULT;
-
- lflags = gcnf.flags;
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- for (i = 0; i < lh->numdescs; i++) {
- desc = lh->descs[i];
- flagsp = &desc->flags;
-
- assign_bit(FLAG_ACTIVE_LOW, flagsp,
- lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW);
-
- assign_bit(FLAG_OPEN_DRAIN, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN);
-
- assign_bit(FLAG_OPEN_SOURCE, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE);
-
- assign_bit(FLAG_PULL_UP, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP);
-
- assign_bit(FLAG_PULL_DOWN, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN);
-
- assign_bit(FLAG_BIAS_DISABLE, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE);
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!gcnf.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- return ret;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- return ret;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_CONFIG, desc);
- }
- return 0;
-}
-
-static long linehandle_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct linehandle_state *lh = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
- DECLARE_BITMAP(vals, GPIOHANDLES_MAX);
- int i;
-
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- /* NOTE: It's ok to read values of output lines. */
- int ret = gpiod_get_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- if (ret)
- return ret;
-
- memset(&ghd, 0, sizeof(ghd));
- for (i = 0; i < lh->numdescs; i++)
- ghd.values[i] = test_bit(i, vals);
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- } else if (cmd == GPIOHANDLE_SET_LINE_VALUES_IOCTL) {
- /*
- * All line descriptors were created at once with the same
- * flags so just check if the first one is really output.
- */
- if (!test_bit(FLAG_IS_OUT, &lh->descs[0]->flags))
- return -EPERM;
-
- if (copy_from_user(&ghd, ip, sizeof(ghd)))
- return -EFAULT;
-
- /* Clamp all values to [0,1] */
- for (i = 0; i < lh->numdescs; i++)
- __assign_bit(i, vals, ghd.values[i]);
-
- /* Reuse the array setting function */
- return gpiod_set_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- } else if (cmd == GPIOHANDLE_SET_CONFIG_IOCTL) {
- return linehandle_set_config(lh, ip);
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long linehandle_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return linehandle_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static int linehandle_release(struct inode *inode, struct file *filep)
-{
- struct linehandle_state *lh = filep->private_data;
- struct gpio_device *gdev = lh->gdev;
- int i;
-
- for (i = 0; i < lh->numdescs; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
- kfree(lh);
- put_device(&gdev->dev);
- return 0;
-}
-
-static const struct file_operations linehandle_fileops = {
- .release = linehandle_release,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = linehandle_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = linehandle_ioctl_compat,
-#endif
-};
-
-static int linehandle_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpiohandle_request handlereq;
- struct linehandle_state *lh;
- struct file *file;
- int fd, i, count = 0, ret;
- u32 lflags;
-
- if (copy_from_user(&handlereq, ip, sizeof(handlereq)))
- return -EFAULT;
- if ((handlereq.lines == 0) || (handlereq.lines > GPIOHANDLES_MAX))
- return -EINVAL;
-
- lflags = handlereq.flags;
-
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- lh = kzalloc(sizeof(*lh), GFP_KERNEL);
- if (!lh)
- return -ENOMEM;
- lh->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- handlereq.consumer_label[sizeof(handlereq.consumer_label)-1] = '\0';
- if (strlen(handlereq.consumer_label)) {
- lh->label = kstrdup(handlereq.consumer_label,
- GFP_KERNEL);
- if (!lh->label) {
- ret = -ENOMEM;
- goto out_free_lh;
- }
- }
-
- /* Request each GPIO */
- for (i = 0; i < handlereq.lines; i++) {
- u32 offset = handlereq.lineoffsets[i];
- struct gpio_desc *desc = gpiochip_get_desc(gdev->chip, offset);
-
- if (IS_ERR(desc)) {
- ret = PTR_ERR(desc);
- goto out_free_descs;
- }
-
- ret = gpiod_request(desc, lh->label);
- if (ret)
- goto out_free_descs;
- lh->descs[i] = desc;
- count = i + 1;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN)
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_set_transitory(desc, false);
- if (ret < 0)
- goto out_free_descs;
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!handlereq.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- goto out_free_descs;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_descs;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- dev_dbg(&gdev->dev, "registered chardev handle for line %d\n",
- offset);
- }
- /* Let i point at the last handle */
- i--;
- lh->numdescs = handlereq.lines;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_descs;
- }
-
- file = anon_inode_getfile("gpio-linehandle",
- &linehandle_fileops,
- lh,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- handlereq.fd = fd;
- if (copy_to_user(ip, &handlereq, sizeof(handlereq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- dev_dbg(&gdev->dev, "registered chardev handle for %d lines\n",
- lh->numdescs);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_descs:
- for (i = 0; i < count; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
-out_free_lh:
- kfree(lh);
- put_device(&gdev->dev);
- return ret;
-}
-
-/*
- * GPIO line event management
- */
-
-/**
- * struct lineevent_state - contains the state of a userspace event
- * @gdev: the GPIO device the event pertains to
- * @label: consumer label used to tag descriptors
- * @desc: the GPIO descriptor held by this event
- * @eflags: the event flags this line was requested with
- * @irq: the interrupt that trigger in response to events on this GPIO
- * @wait: wait queue that handles blocking reads of events
- * @events: KFIFO for the GPIO events
- * @timestamp: cache for the timestamp storing it between hardirq
- * and IRQ thread, used to bring the timestamp close to the actual
- * event
- */
-struct lineevent_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *desc;
- u32 eflags;
- int irq;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioevent_data, 16);
- u64 timestamp;
-};
-
-#define GPIOEVENT_REQUEST_VALID_FLAGS \
- (GPIOEVENT_REQUEST_RISING_EDGE | \
- GPIOEVENT_REQUEST_FALLING_EDGE)
-
-static __poll_t lineevent_poll(struct file *filep,
- struct poll_table_struct *wait)
-{
- struct lineevent_state *le = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &le->wait, wait);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&le->events, &le->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-
-static ssize_t lineevent_read(struct file *filep,
- char __user *buf,
- size_t count,
- loff_t *f_ps)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpioevent_data ge;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(ge))
- return -EINVAL;
-
- do {
- spin_lock(&le->wait.lock);
- if (kfifo_is_empty(&le->events)) {
- if (bytes_read) {
- spin_unlock(&le->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&le->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(le->wait,
- !kfifo_is_empty(&le->events));
- if (ret) {
- spin_unlock(&le->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&le->events, &ge, 1);
- spin_unlock(&le->wait.lock);
- if (ret != 1) {
- /*
- * This should never happen - we were holding the lock
- * from the moment we learned the fifo is no longer
- * empty until now.
- */
- ret = -EIO;
- break;
- }
-
- if (copy_to_user(buf + bytes_read, &ge, sizeof(ge)))
- return -EFAULT;
- bytes_read += sizeof(ge);
- } while (count >= bytes_read + sizeof(ge));
-
- return bytes_read;
-}
-
-static int lineevent_release(struct inode *inode, struct file *filep)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpio_device *gdev = le->gdev;
-
- free_irq(le->irq, le);
- gpiod_free(le->desc);
- kfree(le->label);
- kfree(le);
- put_device(&gdev->dev);
- return 0;
-}
-
-static long lineevent_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct lineevent_state *le = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
-
- /*
- * We can get the value for an event line but not set it,
- * because it is input by definition.
- */
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- int val;
-
- memset(&ghd, 0, sizeof(ghd));
-
- val = gpiod_get_value_cansleep(le->desc);
- if (val < 0)
- return val;
- ghd.values[0] = val;
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long lineevent_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return lineevent_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static const struct file_operations lineevent_fileops = {
- .release = lineevent_release,
- .read = lineevent_read,
- .poll = lineevent_poll,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = lineevent_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = lineevent_ioctl_compat,
-#endif
-};
-
-static irqreturn_t lineevent_irq_thread(int irq, void *p)
-{
- struct lineevent_state *le = p;
- struct gpioevent_data ge;
- int ret;
-
- /* Do not leak kernel stack to userspace */
- memset(&ge, 0, sizeof(ge));
-
- /*
- * We may be running from a nested threaded interrupt in which case
- * we didn't get the timestamp from lineevent_irq_handler().
- */
- if (!le->timestamp)
- ge.timestamp = ktime_get_ns();
- else
- ge.timestamp = le->timestamp;
-
- if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
- && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- int level = gpiod_get_value_cansleep(le->desc);
- if (level)
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- else
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE) {
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else {
- return IRQ_NONE;
- }
-
- ret = kfifo_in_spinlocked_noirqsave(&le->events, &ge,
- 1, &le->wait.lock);
- if (ret)
- wake_up_poll(&le->wait, EPOLLIN);
- else
- pr_debug_ratelimited("event FIFO is full - event dropped\n");
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t lineevent_irq_handler(int irq, void *p)
-{
- struct lineevent_state *le = p;
-
- /*
- * Just store the timestamp in hardirq context so we get it as
- * close in time as possible to the actual event.
- */
- le->timestamp = ktime_get_ns();
-
- return IRQ_WAKE_THREAD;
-}
-
-static int lineevent_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpioevent_request eventreq;
- struct lineevent_state *le;
- struct gpio_desc *desc;
- struct file *file;
- u32 offset;
- u32 lflags;
- u32 eflags;
- int fd;
- int ret;
- int irqflags = 0;
-
- if (copy_from_user(&eventreq, ip, sizeof(eventreq)))
- return -EFAULT;
-
- offset = eventreq.lineoffset;
- lflags = eventreq.handleflags;
- eflags = eventreq.eventflags;
-
- desc = gpiochip_get_desc(gdev->chip, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- /* Return an error if a unknown flag is set */
- if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) ||
- (eflags & ~GPIOEVENT_REQUEST_VALID_FLAGS))
- return -EINVAL;
-
- /* This is just wrong: we don't look for events on output lines */
- if ((lflags & GPIOHANDLE_REQUEST_OUTPUT) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (lflags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- le = kzalloc(sizeof(*le), GFP_KERNEL);
- if (!le)
- return -ENOMEM;
- le->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- eventreq.consumer_label[sizeof(eventreq.consumer_label)-1] = '\0';
- if (strlen(eventreq.consumer_label)) {
- le->label = kstrdup(eventreq.consumer_label,
- GFP_KERNEL);
- if (!le->label) {
- ret = -ENOMEM;
- goto out_free_le;
- }
- }
-
- ret = gpiod_request(desc, le->label);
- if (ret)
- goto out_free_label;
- le->desc = desc;
- le->eflags = eflags;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_desc;
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- le->irq = gpiod_to_irq(desc);
- if (le->irq <= 0) {
- ret = -ENODEV;
- goto out_free_desc;
- }
-
- if (eflags & GPIOEVENT_REQUEST_RISING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
- if (eflags & GPIOEVENT_REQUEST_FALLING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
- irqflags |= IRQF_ONESHOT;
-
- INIT_KFIFO(le->events);
- init_waitqueue_head(&le->wait);
-
- /* Request a thread to read the events */
- ret = request_threaded_irq(le->irq,
- lineevent_irq_handler,
- lineevent_irq_thread,
- irqflags,
- le->label,
- le);
- if (ret)
- goto out_free_desc;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_irq;
- }
-
- file = anon_inode_getfile("gpio-event",
- &lineevent_fileops,
- le,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- eventreq.fd = fd;
- if (copy_to_user(ip, &eventreq, sizeof(eventreq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_irq:
- free_irq(le->irq, le);
-out_free_desc:
- gpiod_free(le->desc);
-out_free_label:
- kfree(le->label);
-out_free_le:
- kfree(le);
- put_device(&gdev->dev);
- return ret;
-}
-
-static void gpio_desc_to_lineinfo(struct gpio_desc *desc,
- struct gpioline_info *info)
-{
- struct gpio_chip *gc = desc->gdev->chip;
- bool ok_for_pinctrl;
- unsigned long flags;
-
- /*
- * This function takes a mutex so we must check this before taking
- * the spinlock.
- *
- * FIXME: find a non-racy way to retrieve this information. Maybe a
- * lock common to both frameworks?
- */
- ok_for_pinctrl =
- pinctrl_gpio_can_use_line(gc->base + info->line_offset);
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- if (desc->name) {
- strncpy(info->name, desc->name, sizeof(info->name));
- info->name[sizeof(info->name) - 1] = '\0';
- } else {
- info->name[0] = '\0';
- }
-
- if (desc->label) {
- strncpy(info->consumer, desc->label, sizeof(info->consumer));
- info->consumer[sizeof(info->consumer) - 1] = '\0';
- } else {
- info->consumer[0] = '\0';
- }
-
- /*
- * Userspace only need to know that the kernel is using this GPIO so
- * it can't use it.
- */
- info->flags = 0;
- if (test_bit(FLAG_REQUESTED, &desc->flags) ||
- test_bit(FLAG_IS_HOGGED, &desc->flags) ||
- test_bit(FLAG_USED_AS_IRQ, &desc->flags) ||
- test_bit(FLAG_EXPORT, &desc->flags) ||
- test_bit(FLAG_SYSFS, &desc->flags) ||
- !ok_for_pinctrl)
- info->flags |= GPIOLINE_FLAG_KERNEL;
- if (test_bit(FLAG_IS_OUT, &desc->flags))
- info->flags |= GPIOLINE_FLAG_IS_OUT;
- if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
- info->flags |= GPIOLINE_FLAG_ACTIVE_LOW;
- if (test_bit(FLAG_OPEN_DRAIN, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_DRAIN |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_SOURCE |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_BIAS_DISABLE, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_DISABLE;
- if (test_bit(FLAG_PULL_DOWN, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_DOWN;
- if (test_bit(FLAG_PULL_UP, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_UP;
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-}
-
-struct gpio_chardev_data {
- struct gpio_device *gdev;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioline_info_changed, 32);
- struct notifier_block lineinfo_changed_nb;
- unsigned long *watched_lines;
-};
-
-/*
- * gpio_ioctl() - ioctl handler for the GPIO chardev
- */
-static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
- struct gpio_chip *gc = gdev->chip;
- void __user *ip = (void __user *)arg;
- struct gpio_desc *desc;
- __u32 offset;
- int hwgpio;
-
- /* We fail any subsequent ioctl():s when the chip is gone */
- if (!gc)
- return -ENODEV;
-
- /* Fill in the struct and pass to userspace */
- if (cmd == GPIO_GET_CHIPINFO_IOCTL) {
- struct gpiochip_info chipinfo;
-
- memset(&chipinfo, 0, sizeof(chipinfo));
-
- strncpy(chipinfo.name, dev_name(&gdev->dev),
- sizeof(chipinfo.name));
- chipinfo.name[sizeof(chipinfo.name)-1] = '\0';
- strncpy(chipinfo.label, gdev->label,
- sizeof(chipinfo.label));
- chipinfo.label[sizeof(chipinfo.label)-1] = '\0';
- chipinfo.lines = gdev->ngpio;
- if (copy_to_user(ip, &chipinfo, sizeof(chipinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEHANDLE_IOCTL) {
- return linehandle_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEEVENT_IOCTL) {
- return lineevent_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEINFO_WATCH_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
-
- set_bit(hwgpio, priv->watched_lines);
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_UNWATCH_IOCTL) {
- if (copy_from_user(&offset, ip, sizeof(offset)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (!test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- clear_bit(hwgpio, priv->watched_lines);
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long gpio_ioctl_compat(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- return gpio_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static struct gpio_chardev_data *
-to_gpio_chardev_data(struct notifier_block *nb)
-{
- return container_of(nb, struct gpio_chardev_data, lineinfo_changed_nb);
-}
-
-static int lineinfo_changed_notify(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct gpio_chardev_data *priv = to_gpio_chardev_data(nb);
- struct gpioline_info_changed chg;
- struct gpio_desc *desc = data;
- int ret;
-
- if (!test_bit(gpio_chip_hwgpio(desc), priv->watched_lines))
- return NOTIFY_DONE;
-
- memset(&chg, 0, sizeof(chg));
- chg.info.line_offset = gpio_chip_hwgpio(desc);
- chg.event_type = action;
- chg.timestamp = ktime_get_ns();
- gpio_desc_to_lineinfo(desc, &chg.info);
-
- ret = kfifo_in_spinlocked(&priv->events, &chg, 1, &priv->wait.lock);
- if (ret)
- wake_up_poll(&priv->wait, EPOLLIN);
- else
- pr_debug_ratelimited("lineinfo event FIFO is full - event dropped\n");
-
- return NOTIFY_OK;
-}
-
-static __poll_t lineinfo_watch_poll(struct file *filep,
- struct poll_table_struct *pollt)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &priv->wait, pollt);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&priv->events,
- &priv->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-static ssize_t lineinfo_watch_read(struct file *filep, char __user *buf,
- size_t count, loff_t *off)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- struct gpioline_info_changed event;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(event))
- return -EINVAL;
-
- do {
- spin_lock(&priv->wait.lock);
- if (kfifo_is_empty(&priv->events)) {
- if (bytes_read) {
- spin_unlock(&priv->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&priv->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(priv->wait,
- !kfifo_is_empty(&priv->events));
- if (ret) {
- spin_unlock(&priv->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&priv->events, &event, 1);
- spin_unlock(&priv->wait.lock);
- if (ret != 1) {
- ret = -EIO;
- break;
- /* We should never get here. See lineevent_read(). */
- }
-
- if (copy_to_user(buf + bytes_read, &event, sizeof(event)))
- return -EFAULT;
- bytes_read += sizeof(event);
- } while (count >= bytes_read + sizeof(event));
-
- return bytes_read;
-}
-
-/**
- * gpio_chrdev_open() - open the chardev for ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_open(struct inode *inode, struct file *filp)
-{
- struct gpio_device *gdev = container_of(inode->i_cdev,
- struct gpio_device, chrdev);
- struct gpio_chardev_data *priv;
- int ret = -ENOMEM;
-
- /* Fail on open if the backing gpiochip is gone */
- if (!gdev->chip)
- return -ENODEV;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->watched_lines = bitmap_zalloc(gdev->chip->ngpio, GFP_KERNEL);
- if (!priv->watched_lines)
- goto out_free_priv;
-
- init_waitqueue_head(&priv->wait);
- INIT_KFIFO(priv->events);
- priv->gdev = gdev;
-
- priv->lineinfo_changed_nb.notifier_call = lineinfo_changed_notify;
- ret = atomic_notifier_chain_register(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- if (ret)
- goto out_free_bitmap;
-
- get_device(&gdev->dev);
- filp->private_data = priv;
-
- ret = nonseekable_open(inode, filp);
- if (ret)
- goto out_unregister_notifier;
-
- return ret;
-
-out_unregister_notifier:
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
-out_free_bitmap:
- bitmap_free(priv->watched_lines);
-out_free_priv:
- kfree(priv);
- return ret;
-}
-
-/**
- * gpio_chrdev_release() - close chardev after ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_release(struct inode *inode, struct file *filp)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
-
- bitmap_free(priv->watched_lines);
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- put_device(&gdev->dev);
- kfree(priv);
-
- return 0;
-}
-
-static const struct file_operations gpio_fileops = {
- .release = gpio_chrdev_release,
- .open = gpio_chrdev_open,
- .poll = lineinfo_watch_poll,
- .read = lineinfo_watch_read,
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .unlocked_ioctl = gpio_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = gpio_ioctl_compat,
-#endif
-};
-
static void gpiodevice_release(struct device *dev)
{
struct gpio_device *gdev = dev_get_drvdata(dev);
@@@ -436,10 -1539,17 +436,10 @@@ static int gpiochip_setup_dev(struct gp
{
int ret;
- cdev_init(&gdev->chrdev, &gpio_fileops);
- gdev->chrdev.owner = THIS_MODULE;
- gdev->dev.devt = MKDEV(MAJOR(gpio_devt), gdev->id);
-
- ret = cdev_device_add(&gdev->chrdev, &gdev->dev);
+ ret = gpiolib_cdev_register(gdev, gpio_devt);
if (ret)
return ret;
- chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n",
- MAJOR(gpio_devt), gdev->id);
-
ret = gpiochip_sysfs_register(gdev);
if (ret)
goto err_remove_device;
@@@ -452,7 -1562,7 +452,7 @@@
return 0;
err_remove_device:
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
return ret;
}
@@@ -615,7 -1725,7 +615,7 @@@ int gpiochip_add_data_with_key(struct g
spin_unlock_irqrestore(&gpio_lock, flags);
- ATOMIC_INIT_NOTIFIER_HEAD(&gdev->notifier);
+ BLOCKING_INIT_NOTIFIER_HEAD(&gdev->notifier);
#ifdef CONFIG_PINCTRL
INIT_LIST_HEAD(&gdev->pin_ranges);
@@@ -774,7 -1884,7 +774,7 @@@ void gpiochip_remove(struct gpio_chip *
* be removed, else it will be dangling until the last user is
* gone.
*/
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
put_device(&gdev->dev);
}
EXPORT_SYMBOL_GPL(gpiochip_remove);
@@@ -2049,8 -3159,8 +2049,8 @@@ static bool gpiod_free_commit(struct gp
}
spin_unlock_irqrestore(&gpio_lock, flags);
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_RELEASED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_RELEASED, desc);
return ret;
}
@@@ -2595,9 -3705,10 +2595,9 @@@ int gpiod_get_array_value_complex(bool
bitmap_xor(value_bitmap, value_bitmap,
array_info->invert_mask, array_size);
- if (bitmap_full(array_info->get_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->get_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -2878,9 -3989,10 +2878,9 @@@ int gpiod_set_array_value_complex(bool
gpio_chip_set_multiple(array_info->chip, array_info->set_mask,
value_bitmap);
- if (bitmap_full(array_info->set_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->set_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -3927,8 -5039,8 +3927,8 @@@ struct gpio_desc *__must_check gpiod_ge
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -3995,8 -5107,8 +3995,8 @@@ struct gpio_desc *fwnode_get_named_gpio
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -4417,7 -5529,7 +4417,7 @@@ static int gpiolib_open(struct inode *i
static const struct file_operations gpiolib_operations = {
.owner = THIS_MODULE,
.open = gpiolib_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/gpu/drm/arm/malidp_drv.c
index 69fee05c256c,029a26def9f7..c9e18eeddf2e
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@@ -349,11 -349,11 +349,11 @@@ malidp_verify_afbc_framebuffer_size(str
if (objs->size < afbc_size) {
DRM_DEBUG_KMS("buffer size (%zu) too small for AFBC buffer size = %u\n",
objs->size, afbc_size);
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return false;
}
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return true;
}
@@@ -542,7 -542,7 +542,7 @@@ static ssize_t malidp_debugfs_write(str
static const struct file_operations malidp_debugfs_fops = {
.owner = THIS_MODULE,
.open = malidp_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = malidp_debugfs_write,
.llseek = seq_lseek,
.release = single_release,
@@@ -563,7 -563,16 +563,7 @@@ static void malidp_debugfs_init(struct
static struct drm_driver malidp_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
- .gem_free_object_unlocked = drm_gem_cma_free_object,
- .gem_vm_ops = &drm_gem_cma_vm_ops,
- .dumb_create = malidp_dumb_create,
- .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
- .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
- .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
- .gem_prime_vmap = drm_gem_cma_prime_vmap,
- .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
- .gem_prime_mmap = drm_gem_cma_prime_mmap,
+ DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(malidp_dumb_create),
#ifdef CONFIG_DEBUG_FS
.debugfs_init = malidp_debugfs_init,
#endif
@@@ -657,11 -666,20 +657,11 @@@ static ssize_t core_id_show(struct devi
static DEVICE_ATTR_RO(core_id);
-static int malidp_init_sysfs(struct device *dev)
-{
- int ret = device_create_file(dev, &dev_attr_core_id);
-
- if (ret)
- DRM_ERROR("failed to create device file for core_id\n");
-
- return ret;
-}
-
-static void malidp_fini_sysfs(struct device *dev)
-{
- device_remove_file(dev, &dev_attr_core_id);
-}
+static struct attribute *mali_dp_attrs[] = {
+ &dev_attr_core_id.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(mali_dp);
#define MAX_OUTPUT_CHANNELS 3
@@@ -823,6 -841,10 +823,6 @@@ static int malidp_bind(struct device *d
if (ret < 0)
goto query_hw_fail;
- ret = malidp_init_sysfs(dev);
- if (ret)
- goto init_fail;
-
/* Set the CRTC's port so that the encoder component can find it */
malidp->crtc.port = of_graph_get_port_by_id(dev->of_node, 0);
@@@ -848,6 -870,7 +848,6 @@@
drm->irq_enabled = true;
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
- drm_crtc_vblank_reset(&malidp->crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
goto vblank_fail;
@@@ -879,6 -902,8 +879,6 @@@ irq_init_fail
bind_fail:
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
-init_fail:
- malidp_fini_sysfs(dev);
malidp_fini(drm);
query_hw_fail:
pm_runtime_put(dev);
@@@ -904,13 -929,15 +904,13 @@@ static void malidp_unbind(struct devic
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
pm_runtime_get_sync(dev);
- drm_crtc_vblank_off(&malidp->crtc);
+ drm_atomic_helper_shutdown(drm);
malidp_se_irq_fini(hwdev);
malidp_de_irq_fini(hwdev);
drm->irq_enabled = false;
- drm_atomic_helper_shutdown(drm);
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
- malidp_fini_sysfs(dev);
malidp_fini(drm);
pm_runtime_put(dev);
if (pm_runtime_enabled(dev))
@@@ -1006,7 -1033,6 +1006,7 @@@ static struct platform_driver malidp_pl
.name = "mali-dp",
.pm = &malidp_pm_ops,
.of_match_table = malidp_drm_of_match,
+ .dev_groups = mali_dp_groups,
},
};
diff --combined drivers/gpu/drm/drm_debugfs.c
index 3d7182001004,a0a1a598826f..c4b2c861101f
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@@ -154,7 -154,7 +154,7 @@@ static int drm_debugfs_open(struct inod
static const struct file_operations drm_debugfs_fops = {
.owner = THIS_MODULE,
.open = drm_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -311,13 -311,13 +311,13 @@@ static ssize_t connector_write(struct f
buf[len] = '\0';
- if (!strcmp(buf, "on"))
+ if (sysfs_streq(buf, "on"))
connector->force = DRM_FORCE_ON;
- else if (!strcmp(buf, "digital"))
+ else if (sysfs_streq(buf, "digital"))
connector->force = DRM_FORCE_ON_DIGITAL;
- else if (!strcmp(buf, "off"))
+ else if (sysfs_streq(buf, "off"))
connector->force = DRM_FORCE_OFF;
- else if (!strcmp(buf, "unspecified"))
+ else if (sysfs_streq(buf, "unspecified"))
connector->force = DRM_FORCE_UNSPECIFIED;
else
return -EINVAL;
@@@ -376,28 -376,10 +376,28 @@@ static ssize_t edid_write(struct file *
return (ret) ? ret : len;
}
+/*
+ * Returns the min and max vrr vfreq through the connector's debugfs file.
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
+ */
+static int vrr_range_show(struct seq_file *m, void *data)
+{
+ struct drm_connector *connector = m->private;
+
+ if (connector->status != connector_status_connected)
+ return -ENODEV;
+
+ seq_printf(m, "Min: %u\n", (u8)connector->display_info.monitor_range.min_vfreq);
+ seq_printf(m, "Max: %u\n", (u8)connector->display_info.monitor_range.max_vfreq);
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(vrr_range);
+
static const struct file_operations drm_edid_fops = {
.owner = THIS_MODULE,
.open = edid_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = edid_write
@@@ -407,7 -389,7 +407,7 @@@
static const struct file_operations drm_connector_fops = {
.owner = THIS_MODULE,
.open = connector_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = connector_write
@@@ -431,10 -413,6 +431,10 @@@ void drm_debugfs_connector_add(struct d
/* edid */
debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
&drm_edid_fops);
+
+ /* vrr range */
+ debugfs_create_file("vrr_range", S_IRUGO, root, connector,
+ &vrr_range_fops);
}
void drm_debugfs_connector_remove(struct drm_connector *connector)
diff --combined drivers/gpu/drm/drm_mipi_dbi.c
index 79532b9a324a,d0298376d28a..0e55d8716e3d
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@@ -217,7 -217,7 +217,7 @@@ int mipi_dbi_buf_copy(void *dst, struc
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
if (swap)
- drm_fb_swab16(dst, src, fb, clip);
+ drm_fb_swab(dst, src, fb, clip, !import_attach);
else
drm_fb_memcpy(dst, src, fb, clip);
break;
@@@ -268,7 -268,7 +268,7 @@@ static void mipi_dbi_fb_dirty(struct dr
bool full;
void *tr;
- if (!dbidev->enabled)
+ if (WARN_ON(!fb))
return;
if (!drm_dev_enter(fb->dev, &idx))
@@@ -314,9 -314,6 +314,9 @@@ void mipi_dbi_pipe_update(struct drm_si
struct drm_plane_state *state = pipe->plane.state;
struct drm_rect rect;
+ if (!pipe->crtc.state->active)
+ return;
+
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
mipi_dbi_fb_dirty(state->fb, &rect);
}
@@@ -328,8 -325,9 +328,8 @@@ EXPORT_SYMBOL(mipi_dbi_pipe_update)
* @crtc_state: CRTC state
* @plane_state: Plane state
*
- * This function sets &mipi_dbi->enabled, flushes the whole framebuffer and
- * enables the backlight. Drivers can use this in their
- * &drm_simple_display_pipe_funcs->enable callback.
+ * Flushes the whole framebuffer and enables the backlight. Drivers can use this
+ * in their &drm_simple_display_pipe_funcs->enable callback.
*
* Note: Drivers which don't use mipi_dbi_pipe_update() because they have custom
* framebuffer flushing, can't use this function since they both use the same
@@@ -351,6 -349,7 +351,6 @@@ void mipi_dbi_enable_flush(struct mipi_
if (!drm_dev_enter(&dbidev->drm, &idx))
return;
- dbidev->enabled = true;
mipi_dbi_fb_dirty(fb, &rect);
backlight_enable(dbidev->backlight);
@@@ -391,8 -390,13 +391,8 @@@ void mipi_dbi_pipe_disable(struct drm_s
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
- if (!dbidev->enabled)
- return;
-
DRM_DEBUG_KMS("\n");
- dbidev->enabled = false;
-
if (dbidev->backlight)
backlight_disable(dbidev->backlight);
else
@@@ -1275,7 -1279,7 +1275,7 @@@ static int mipi_dbi_debugfs_command_ope
static const struct file_operations mipi_dbi_debugfs_command_fops = {
.owner = THIS_MODULE,
.open = mipi_dbi_debugfs_command_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mipi_dbi_debugfs_command_write,
diff --combined drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 3644752cc5ec,147448e6f750..067f24c47513
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@@ -125,7 -125,7 +125,7 @@@ static int i915_ips_status(struct seq_f
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
seq_printf(m, "Enabled by kernel parameter: %s\n",
- yesno(i915_modparams.enable_ips));
+ yesno(dev_priv->params.enable_ips));
if (INTEL_GEN(dev_priv) >= 8) {
seq_puts(m, "Currently: unknown\n");
@@@ -1009,7 -1009,7 +1009,7 @@@ static ssize_t i915_ipc_status_write(st
static const struct file_operations i915_ipc_status_fops = {
.owner = THIS_MODULE,
.open = i915_ipc_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_ipc_status_write
@@@ -1099,10 -1099,10 +1099,10 @@@ static void drrs_status_per_crtc(struc
seq_puts(m, "\n\t\t");
if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
- vrefresh = panel->fixed_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->fixed_mode);
} else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
- vrefresh = panel->downclock_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->downclock_mode);
} else {
seq_printf(m, "DRRS_State: Unknown(%d)\n",
drrs->refresh_rate_type);
@@@ -1194,7 -1194,7 +1194,7 @@@ static int i915_dp_mst_info(struct seq_
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct intel_encoder *intel_encoder;
- struct intel_digital_port *intel_dig_port;
+ struct intel_digital_port *dig_port;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
@@@ -1207,14 -1207,14 +1207,14 @@@
if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
continue;
- intel_dig_port = enc_to_dig_port(intel_encoder);
- if (!intel_dig_port->dp.can_mst)
+ dig_port = enc_to_dig_port(intel_encoder);
+ if (!dig_port->dp.can_mst)
continue;
seq_printf(m, "MST Source Port [ENCODER:%d:%s]\n",
- intel_dig_port->base.base.base.id,
- intel_dig_port->base.base.name);
- drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ drm_dp_mst_dump_topology(m, &dig_port->dp.mst_mgr);
}
drm_connector_list_iter_end(&conn_iter);
@@@ -1326,7 -1326,7 +1326,7 @@@ static int i915_displayport_test_active
static const struct file_operations i915_displayport_test_active_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_active_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_displayport_test_active_write
@@@ -1627,7 -1627,7 +1627,7 @@@ static ssize_t cur_wm_latency_write(str
static const struct file_operations i915_pri_wm_latency_fops = {
.owner = THIS_MODULE,
.open = pri_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pri_wm_latency_write
@@@ -1636,7 -1636,7 +1636,7 @@@
static const struct file_operations i915_spr_wm_latency_fops = {
.owner = THIS_MODULE,
.open = spr_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = spr_wm_latency_write
@@@ -1645,7 -1645,7 +1645,7 @@@
static const struct file_operations i915_cur_wm_latency_fops = {
.owner = THIS_MODULE,
.open = cur_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = cur_wm_latency_write
@@@ -1728,7 -1728,7 +1728,7 @@@ static int i915_hpd_storm_ctl_open(stru
static const struct file_operations i915_hpd_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_storm_ctl_write
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t i915_hpd_short_storm_ctl
static const struct file_operations i915_hpd_short_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_short_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_short_storm_ctl_write,
@@@ -2179,7 -2179,7 +2179,7 @@@ static int i915_dsc_fec_support_open(st
static const struct file_operations i915_dsc_fec_support_fops = {
.owner = THIS_MODULE,
.open = i915_dsc_fec_support_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_dsc_fec_support_write
@@@ -2218,8 -2218,7 +2218,8 @@@ int intel_connector_debugfs_add(struct
}
if (INTEL_GEN(dev_priv) >= 10 &&
- (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+ ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
+ !to_intel_connector(connector)->mst_port) ||
connector->connector_type == DRM_MODE_CONNECTOR_eDP))
debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
connector, &i915_dsc_fec_support_fops);
diff --combined drivers/gpu/drm/i915/i915_debugfs_params.c
index 4e2b077692cb,58ef14b028ea..19518e805bd6
--- a/drivers/gpu/drm/i915/i915_debugfs_params.c
+++ b/drivers/gpu/drm/i915/i915_debugfs_params.c
@@@ -48,7 -48,7 +48,7 @@@ static ssize_t i915_param_int_write(str
static const struct file_operations i915_param_int_fops = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_int_write,
.llseek = default_llseek,
.release = single_release,
@@@ -57,7 -57,7 +57,7 @@@
static const struct file_operations i915_param_int_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -101,7 -101,7 +101,7 @@@ static ssize_t i915_param_uint_write(st
static const struct file_operations i915_param_uint_fops = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_uint_write,
.llseek = default_llseek,
.release = single_release,
@@@ -110,7 -110,7 +110,7 @@@
static const struct file_operations i915_param_uint_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -138,6 -138,9 +138,6 @@@ static ssize_t i915_param_charp_write(s
char **s = m->private;
char *new, *old;
- /* FIXME: remove locking after params aren't the module params */
- kernel_param_lock(THIS_MODULE);
-
old = *s;
new = strndup_user(ubuf, PAGE_SIZE);
if (IS_ERR(new)) {
@@@ -149,13 -152,15 +149,13 @@@
kfree(old);
out:
- kernel_param_unlock(THIS_MODULE);
-
return len;
}
static const struct file_operations i915_param_charp_fops = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_charp_write,
.llseek = default_llseek,
.release = single_release,
@@@ -164,7 -169,7 +164,7 @@@
static const struct file_operations i915_param_charp_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -224,7 -229,7 +224,7 @@@ _i915_param_create_file(struct dentry *
struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
{
struct drm_minor *minor = i915->drm.primary;
- struct i915_params *params = &i915_modparams;
+ struct i915_params *params = &i915->params;
struct dentry *dir;
dir = debugfs_create_dir("i915_params", minor->debugfs_root);
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 969d95aa873c,2fa8d07979eb..98de42315f21
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@@ -389,7 -389,7 +389,7 @@@ static void dpu_crtc_frame_event_cb(voi
spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
if (!fevent) {
- DRM_ERROR("crtc%d event %d overflow\n", crtc->base.id, event);
+ DRM_ERROR_RATELIMITED("crtc%d event %d overflow\n", crtc->base.id, event);
return;
}
@@@ -1256,7 -1256,7 +1256,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -1283,7 -1283,7 +1283,7 @@@ static int _dpu_crtc_init_debugfs(struc
static const struct file_operations debugfs_status_fops = {
.open = _dpu_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 6f1e2b189126,40a7ce44f717..fa6524561dbc
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@@ -208,36 -208,6 +208,36 @@@ struct dpu_encoder_virt
#define to_dpu_encoder_virt(x) container_of(x, struct dpu_encoder_virt, base)
+static u32 dither_matrix[DITHER_MATRIX_SZ] = {
+ 15, 7, 13, 5, 3, 11, 1, 9, 12, 4, 14, 6, 0, 8, 2, 10
+};
+
+static void _dpu_encoder_setup_dither(struct dpu_encoder_phys *phys)
+{
+ struct dpu_hw_dither_cfg dither_cfg = { 0 };
+
+ if (!phys->hw_pp || !phys->hw_pp->ops.setup_dither)
+ return;
+
+ switch (phys->connector->display_info.bpc) {
+ case 6:
+ dither_cfg.c0_bitdepth = 6;
+ dither_cfg.c1_bitdepth = 6;
+ dither_cfg.c2_bitdepth = 6;
+ dither_cfg.c3_bitdepth = 6;
+ dither_cfg.temporal_en = 0;
+ break;
+ default:
+ phys->hw_pp->ops.setup_dither(phys->hw_pp, NULL);
+ return;
+ }
+
+ memcpy(&dither_cfg.matrix, dither_matrix,
+ sizeof(u32) * DITHER_MATRIX_SZ);
+
+ phys->hw_pp->ops.setup_dither(phys->hw_pp, &dither_cfg);
+}
+
void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc,
enum dpu_intr_idx intr_idx)
{
@@@ -529,6 -499,23 +529,6 @@@ void dpu_encoder_helper_split_config
}
}
-static void _dpu_encoder_adjust_mode(struct drm_connector *connector,
- struct drm_display_mode *adj_mode)
-{
- struct drm_display_mode *cur_mode;
-
- if (!connector || !adj_mode)
- return;
-
- list_for_each_entry(cur_mode, &connector->modes, head) {
- if (cur_mode->vdisplay == adj_mode->vdisplay &&
- cur_mode->hdisplay == adj_mode->hdisplay &&
- drm_mode_vrefresh(cur_mode) == drm_mode_vrefresh(adj_mode)) {
- adj_mode->private_flags |= cur_mode->private_flags;
- }
- }
-}
-
static struct msm_display_topology dpu_encoder_get_topology(
struct dpu_encoder_virt *dpu_enc,
struct dpu_kms *dpu_kms,
@@@ -602,6 -589,15 +602,6 @@@ static int dpu_encoder_virt_atomic_chec
global_state = dpu_kms_get_existing_global_state(dpu_kms);
trace_dpu_enc_atomic_check(DRMID(drm_enc));
- /*
- * display drivers may populate private fields of the drm display mode
- * structure while registering possible modes of a connector with DRM.
- * These private fields are not populated back while DRM invokes
- * the mode_set callbacks. This module retrieves and populates the
- * private fields of the given mode.
- */
- _dpu_encoder_adjust_mode(conn_state->connector, adj_mode);
-
/* perform atomic check on the first physical encoder (master) */
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
@@@ -634,7 -630,8 +634,7 @@@
}
}
- trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags,
- adj_mode->private_flags);
+ trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags);
return ret;
}
@@@ -1089,7 -1086,6 +1089,7 @@@ static void _dpu_encoder_virt_enable_he
struct dpu_encoder_virt *dpu_enc = NULL;
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
+ int i;
if (!drm_enc || !drm_enc->dev) {
DPU_ERROR("invalid parameters\n");
@@@ -1112,14 -1108,6 +1112,14 @@@
dpu_kms->catalog);
_dpu_encoder_update_vsync_source(dpu_enc, &dpu_enc->disp_info);
+
+ if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI) {
+ for (i = 0; i < dpu_enc->num_phys_encs; i++) {
+ struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
+
+ _dpu_encoder_setup_dither(phys);
+ }
+ }
}
void dpu_encoder_virt_runtime_resume(struct drm_encoder *drm_enc)
@@@ -1897,7 -1885,7 +1897,7 @@@ static int _dpu_encoder_init_debugfs(st
static const struct file_operations debugfs_status_fops = {
.open = _dpu_encoder_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index f2bbce42c760,282424a27262..d4ee35225ca6
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@@ -10,7 -10,6 +10,7 @@@
#include <linux/debugfs.h>
#include <linux/dma-buf.h>
#include <linux/of_irq.h>
+#include <linux/pm_opp.h>
#include <drm/drm_crtc.h>
#include <drm/drm_file.h>
@@@ -108,7 -107,7 +108,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -177,7 -176,7 +177,7 @@@ static int dpu_debugfs_open_regset32(st
static const struct file_operations dpu_fops_regset32 = {
.open = dpu_debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1026,24 -1025,11 +1026,24 @@@ static int dpu_bind(struct device *dev
if (!dpu_kms)
return -ENOMEM;
+ dpu_kms->opp_table = dev_pm_opp_set_clkname(dev, "core");
+ if (IS_ERR(dpu_kms->opp_table))
+ return PTR_ERR(dpu_kms->opp_table);
+ /* OPP table is optional */
+ ret = dev_pm_opp_of_add_table(dev);
+ if (!ret) {
+ dpu_kms->has_opp_table = true;
+ } else if (ret != -ENODEV) {
+ dev_err(dev, "invalid OPP table in device tree\n");
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
+ return ret;
+ }
+
mp = &dpu_kms->mp;
ret = msm_dss_parse_clock(pdev, mp);
if (ret) {
DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
- return ret;
+ goto err;
}
platform_set_drvdata(pdev, dpu_kms);
@@@ -1057,11 -1043,6 +1057,11 @@@
priv->kms = &dpu_kms->base;
return ret;
+err:
+ if (dpu_kms->has_opp_table)
+ dev_pm_opp_of_remove_table(dev);
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
+ return ret;
}
static void dpu_unbind(struct device *dev, struct device *master, void *data)
@@@ -1076,10 -1057,6 +1076,10 @@@
if (dpu_kms->rpm_enabled)
pm_runtime_disable(&pdev->dev);
+
+ if (dpu_kms->has_opp_table)
+ dev_pm_opp_of_remove_table(dev);
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
}
static const struct component_ops dpu_ops = {
@@@ -1105,8 -1082,6 +1105,8 @@@ static int __maybe_unused dpu_runtime_s
struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
struct dss_module_power *mp = &dpu_kms->mp;
+ /* Drop the performance state vote */
+ dev_pm_opp_set_rate(dev, 0);
rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
if (rc)
DPU_ERROR("clock disable failed rc:%d\n", rc);
@@@ -1140,8 -1115,6 +1140,8 @@@ static int __maybe_unused dpu_runtime_r
static const struct dev_pm_ops dpu_pm_ops = {
SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
static const struct of_device_id dpu_dt_match[] = {
diff --combined drivers/gpu/host1x/debug.c
index 1b4997bda1c7,545fc0afb45a..3eee4318b158
--- a/drivers/gpu/host1x/debug.c
+++ b/drivers/gpu/host1x/debug.c
@@@ -16,8 -16,6 +16,8 @@@
#include "debug.h"
#include "channel.h"
+static DEFINE_MUTEX(debug_lock);
+
unsigned int host1x_debug_trace_cmdbuf;
static pid_t host1x_debug_force_timeout_pid;
@@@ -54,14 -52,12 +54,14 @@@ static int show_channel(struct host1x_c
struct output *o = data;
mutex_lock(&ch->cdma.lock);
+ mutex_lock(&debug_lock);
if (show_fifo)
host1x_hw_show_channel_fifo(m, ch, o);
host1x_hw_show_channel_cdma(m, ch, o);
+ mutex_unlock(&debug_lock);
mutex_unlock(&ch->cdma.lock);
return 0;
@@@ -145,7 -141,7 +145,7 @@@ static int host1x_debug_open_all(struc
static const struct file_operations host1x_debug_all_fops = {
.open = host1x_debug_open_all,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -157,7 -153,7 +157,7 @@@ static int host1x_debug_open(struct ino
static const struct file_operations host1x_debug_fops = {
.open = host1x_debug_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/hwmon/dell-smm-hwmon.c
index ec448f5f2dc3,29ac38842962..976acbbe8ce9
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@@ -597,7 -597,7 +597,7 @@@ static int i8k_open_fs(struct inode *in
static const struct proc_ops i8k_proc_ops = {
.proc_open = i8k_open_fs,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_ioctl = i8k_ioctl,
@@@ -1187,14 -1187,6 +1187,14 @@@ static struct dmi_system_id i8k_whiteli
},
.driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
},
+ {
+ .ident = "Dell Latitude 5480",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 5480"),
+ },
+ .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
+ },
{
.ident = "Dell Latitude E6440",
.matches = {
diff --combined drivers/md/md.c
index bc06f046d9e7,0bae6c1523ce..5b6d46741baa
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@@ -199,7 -199,7 +199,7 @@@ static int rdevs_init_serial(struct mdd
static int rdev_need_serial(struct md_rdev *rdev)
{
return (rdev && rdev->mddev->bitmap_info.max_write_behind > 0 &&
- rdev->bdev->bd_queue->nr_hw_queues != 1 &&
+ rdev->bdev->bd_disk->queue->nr_hw_queues != 1 &&
test_bit(WriteMostly, &rdev->flags));
}
@@@ -463,46 -463,24 +463,46 @@@ check_suspended
}
EXPORT_SYMBOL(md_handle_request);
-static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
+struct md_io {
+ struct mddev *mddev;
+ bio_end_io_t *orig_bi_end_io;
+ void *orig_bi_private;
+ unsigned long start_time;
+};
+
+static void md_end_io(struct bio *bio)
+{
+ struct md_io *md_io = bio->bi_private;
+ struct mddev *mddev = md_io->mddev;
+
+ disk_end_io_acct(mddev->gendisk, bio_op(bio), md_io->start_time);
+
+ bio->bi_end_io = md_io->orig_bi_end_io;
+ bio->bi_private = md_io->orig_bi_private;
+
+ mempool_free(md_io, &mddev->md_io_pool);
+
+ if (bio->bi_end_io)
+ bio->bi_end_io(bio);
+}
+
+static blk_qc_t md_submit_bio(struct bio *bio)
{
const int rw = bio_data_dir(bio);
- const int sgrp = op_stat_group(bio_op(bio));
struct mddev *mddev = bio->bi_disk->private_data;
- unsigned int sectors;
- if (unlikely(test_bit(MD_BROKEN, &mddev->flags)) && (rw == WRITE)) {
+ if (mddev == NULL || mddev->pers == NULL) {
bio_io_error(bio);
return BLK_QC_T_NONE;
}
- blk_queue_split(q, &bio);
-
- if (mddev == NULL || mddev->pers == NULL) {
+ if (unlikely(test_bit(MD_BROKEN, &mddev->flags)) && (rw == WRITE)) {
bio_io_error(bio);
return BLK_QC_T_NONE;
}
+
+ blk_queue_split(&bio);
+
if (mddev->ro == 1 && unlikely(rw == WRITE)) {
if (bio_sectors(bio) != 0)
bio->bi_status = BLK_STS_IOERR;
@@@ -510,27 -488,21 +510,27 @@@
return BLK_QC_T_NONE;
}
- /*
- * save the sectors now since our bio can
- * go away inside make_request
- */
- sectors = bio_sectors(bio);
+ if (bio->bi_end_io != md_end_io) {
+ struct md_io *md_io;
+
+ md_io = mempool_alloc(&mddev->md_io_pool, GFP_NOIO);
+ md_io->mddev = mddev;
+ md_io->orig_bi_end_io = bio->bi_end_io;
+ md_io->orig_bi_private = bio->bi_private;
+
+ bio->bi_end_io = md_end_io;
+ bio->bi_private = md_io;
+
+ md_io->start_time = disk_start_io_acct(mddev->gendisk,
+ bio_sectors(bio),
+ bio_op(bio));
+ }
+
/* bio could be mergeable after passing to underlayer */
bio->bi_opf &= ~REQ_NOMERGE;
md_handle_request(mddev, bio);
- part_stat_lock();
- part_stat_inc(&mddev->gendisk->part0, ios[sgrp]);
- part_stat_add(&mddev->gendisk->part0, sectors[sgrp], sectors);
- part_stat_unlock();
-
return BLK_QC_T_NONE;
}
@@@ -577,6 -549,26 +577,6 @@@ void mddev_resume(struct mddev *mddev
}
EXPORT_SYMBOL_GPL(mddev_resume);
-int mddev_congested(struct mddev *mddev, int bits)
-{
- struct md_personality *pers = mddev->pers;
- int ret = 0;
-
- rcu_read_lock();
- if (mddev->suspended)
- ret = 1;
- else if (pers && pers->congested)
- ret = pers->congested(mddev, bits);
- rcu_read_unlock();
- return ret;
-}
-EXPORT_SYMBOL_GPL(mddev_congested);
-static int md_congested(void *data, int bits)
-{
- struct mddev *mddev = data;
- return mddev_congested(mddev, bits);
-}
-
/*
* Generic flush handling for md
*/
@@@ -2452,10 -2444,6 +2452,10 @@@ static int bind_rdev_to_array(struct md
if (sysfs_create_link(&rdev->kobj, ko, "block"))
/* failure here is OK */;
rdev->sysfs_state = sysfs_get_dirent_safe(rdev->kobj.sd, "state");
+ rdev->sysfs_unack_badblocks =
+ sysfs_get_dirent_safe(rdev->kobj.sd, "unacknowledged_bad_blocks");
+ rdev->sysfs_badblocks =
+ sysfs_get_dirent_safe(rdev->kobj.sd, "bad_blocks");
list_add_rcu(&rdev->same_set, &mddev->disks);
bd_link_disk_holder(rdev->bdev, mddev->gendisk);
@@@ -2489,11 -2477,7 +2489,11 @@@ static void unbind_rdev_from_array(stru
rdev->mddev = NULL;
sysfs_remove_link(&rdev->kobj, "block");
sysfs_put(rdev->sysfs_state);
+ sysfs_put(rdev->sysfs_unack_badblocks);
+ sysfs_put(rdev->sysfs_badblocks);
rdev->sysfs_state = NULL;
+ rdev->sysfs_unack_badblocks = NULL;
+ rdev->sysfs_badblocks = NULL;
rdev->badblocks.count = 0;
/* We need to delay this, otherwise we can deadlock when
* writing to 'remove' to "dev/state". We also need
@@@ -2838,7 -2822,7 +2838,7 @@@ rewrite
goto repeat;
wake_up(&mddev->sb_wait);
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
rdev_for_each(rdev, mddev) {
if (test_and_clear_bit(FaultRecorded, &rdev->flags))
@@@ -4091,7 -4075,7 +4091,7 @@@ level_store(struct mddev *mddev, const
mddev_resume(mddev);
if (!mddev->thread)
md_update_sb(mddev, 1);
- sysfs_notify(&mddev->kobj, NULL, "level");
+ sysfs_notify_dirent_safe(mddev->sysfs_level);
md_new_event(mddev);
rv = len;
out_unlock:
@@@ -4844,7 -4828,7 +4844,7 @@@ action_store(struct mddev *mddev, cons
}
if (err)
return err;
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
} else {
if (cmd_match(page, "check"))
set_bit(MD_RECOVERY_CHECK, &mddev->recovery);
@@@ -5550,13 -5534,6 +5550,13 @@@ static void md_free(struct kobject *ko
if (mddev->sysfs_state)
sysfs_put(mddev->sysfs_state);
+ if (mddev->sysfs_completed)
+ sysfs_put(mddev->sysfs_completed);
+ if (mddev->sysfs_degraded)
+ sysfs_put(mddev->sysfs_degraded);
+ if (mddev->sysfs_level)
+ sysfs_put(mddev->sysfs_level);
+
if (mddev->gendisk)
del_gendisk(mddev->gendisk);
@@@ -5568,7 -5545,6 +5568,7 @@@
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
+ mempool_exit(&mddev->md_io_pool);
kfree(mddev);
}
@@@ -5664,13 -5640,8 +5664,13 @@@ static int md_alloc(dev_t dev, char *na
*/
mddev->hold_active = UNTIL_STOP;
+ error = mempool_init_kmalloc_pool(&mddev->md_io_pool, BIO_POOL_SIZE,
+ sizeof(struct md_io));
+ if (error)
+ goto abort;
+
error = -ENOMEM;
- mddev->queue = blk_alloc_queue(md_make_request, NUMA_NO_NODE);
+ mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!mddev->queue)
goto abort;
@@@ -5699,7 -5670,6 +5699,7 @@@
* remove it now.
*/
disk->flags |= GENHD_FL_EXT_DEVT;
+ disk->events |= DISK_EVENT_MEDIA_CHANGE;
mddev->gendisk = disk;
/* As soon as we call add_disk(), another thread could get
* through to md_open, so make sure it doesn't get too far
@@@ -5725,9 -5695,6 +5725,9 @@@
if (!error && mddev->kobj.sd) {
kobject_uevent(&mddev->kobj, KOBJ_ADD);
mddev->sysfs_state = sysfs_get_dirent_safe(mddev->kobj.sd, "array_state");
+ mddev->sysfs_completed = sysfs_get_dirent_safe(mddev->kobj.sd, "sync_completed");
+ mddev->sysfs_degraded = sysfs_get_dirent_safe(mddev->kobj.sd, "degraded");
+ mddev->sysfs_level = sysfs_get_dirent_safe(mddev->kobj.sd, "level");
}
mddev_put(mddev);
return error;
@@@ -5997,6 -5964,8 +5997,6 @@@ int md_run(struct mddev *mddev
blk_queue_flag_set(QUEUE_FLAG_NONROT, mddev->queue);
else
blk_queue_flag_clear(QUEUE_FLAG_NONROT, mddev->queue);
- mddev->queue->backing_dev_info->congested_data = mddev;
- mddev->queue->backing_dev_info->congested_fn = md_congested;
}
if (pers->sync_request) {
if (mddev->kobj.sd &&
@@@ -6080,7 -6049,7 +6080,7 @@@ static int do_md_run(struct mddev *mdde
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
sysfs_notify_dirent_safe(mddev->sysfs_state);
sysfs_notify_dirent_safe(mddev->sysfs_action);
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
out:
clear_bit(MD_NOT_READY, &mddev->flags);
return err;
@@@ -6381,6 -6350,7 +6381,6 @@@ static int do_md_stop(struct mddev *mdd
__md_stop_writes(mddev);
__md_stop(mddev);
- mddev->queue->backing_dev_info->congested_fn = NULL;
/* tell userspace to handle 'inactive' */
sysfs_notify_dirent_safe(mddev->sysfs_state);
@@@ -7836,21 -7806,23 +7836,21 @@@ static void md_release(struct gendisk *
mddev_put(mddev);
}
-static int md_media_changed(struct gendisk *disk)
-{
- struct mddev *mddev = disk->private_data;
-
- return mddev->changed;
-}
-
-static int md_revalidate(struct gendisk *disk)
+static unsigned int md_check_events(struct gendisk *disk, unsigned int clearing)
{
struct mddev *mddev = disk->private_data;
+ unsigned int ret = 0;
+ if (mddev->changed)
+ ret = DISK_EVENT_MEDIA_CHANGE;
mddev->changed = 0;
- return 0;
+ return ret;
}
+
static const struct block_device_operations md_fops =
{
.owner = THIS_MODULE,
+ .submit_bio = md_submit_bio,
.open = md_open,
.release = md_release,
.ioctl = md_ioctl,
@@@ -7858,7 -7830,8 +7858,7 @@@
.compat_ioctl = md_compat_ioctl,
#endif
.getgeo = md_getgeo,
- .media_changed = md_media_changed,
- .revalidate_disk= md_revalidate,
+ .check_events = md_check_events,
};
static int md_thread(void *arg)
@@@ -8328,7 -8301,7 +8328,7 @@@ static __poll_t mdstat_poll(struct fil
static const struct proc_ops mdstat_proc_ops = {
.proc_open = md_seq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = mdstat_poll,
@@@ -8794,7 -8767,7 +8794,7 @@@ void md_do_sync(struct md_thread *threa
} else
mddev->curr_resync = 3; /* no longer delayed */
mddev->curr_resync_completed = j;
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
md_new_event(mddev);
update_time = jiffies;
@@@ -8822,7 -8795,7 +8822,7 @@@
mddev->recovery_cp = j;
update_time = jiffies;
set_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags);
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
}
while (j >= mddev->resync_max &&
@@@ -8929,7 -8902,7 +8929,7 @@@
!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
mddev->curr_resync > 3) {
mddev->curr_resync_completed = mddev->curr_resync;
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
}
mddev->pers->sync_request(mddev, max_sectors, &skipped);
@@@ -9059,7 -9032,7 +9059,7 @@@ static int remove_and_add_spares(struc
}
if (removed && mddev->kobj.sd)
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
if (this && removed)
goto no_add;
@@@ -9342,7 -9315,8 +9342,7 @@@ void md_reap_sync_thread(struct mddev *
/* success...*/
/* activate any spares */
if (mddev->pers->spare_active(mddev)) {
- sysfs_notify(&mddev->kobj, NULL,
- "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
}
}
@@@ -9432,7 -9406,8 +9432,7 @@@ int rdev_set_badblocks(struct md_rdev *
if (rv == 0) {
/* Make sure they get written out promptly */
if (test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify(&rdev->kobj, NULL,
- "unacknowledged_bad_blocks");
+ sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
sysfs_notify_dirent_safe(rdev->sysfs_state);
set_mask_bits(&mddev->sb_flags, 0,
BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
@@@ -9453,7 -9428,7 +9453,7 @@@ int rdev_clear_badblocks(struct md_rde
s += rdev->data_offset;
rv = badblocks_clear(&rdev->badblocks, s, sectors);
if ((rv == 0) && test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify(&rdev->kobj, NULL, "bad_blocks");
+ sysfs_notify_dirent_safe(rdev->sysfs_badblocks);
return rv;
}
EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
@@@ -9683,7 -9658,7 +9683,7 @@@ static int read_rdev(struct mddev *mdde
if (rdev->recovery_offset == MaxSector &&
!test_bit(In_sync, &rdev->flags) &&
mddev->pers->spare_active(mddev))
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
put_page(swapout);
return 0;
diff --combined drivers/media/cec/core/cec-core.c
index c599cd94dd62,87e856788e0b..6edb1e09f9fa
--- a/drivers/media/cec/core/cec-core.c
+++ b/drivers/media/cec/core/cec-core.c
@@@ -226,7 -226,7 +226,7 @@@ static int cec_error_inj_open(struct in
static const struct file_operations cec_error_inj_fops = {
.open = cec_error_inj_open,
.write = cec_error_inj_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -265,6 -265,7 +265,6 @@@ struct cec_adapter *cec_allocate_adapte
adap->sequence = 0;
adap->ops = ops;
adap->priv = priv;
- memset(adap->phys_addrs, 0xff, sizeof(adap->phys_addrs));
mutex_init(&adap->lock);
INIT_LIST_HEAD(&adap->transmit_queue);
INIT_LIST_HEAD(&adap->wait_queue);
diff --combined drivers/memory/tegra/tegra124-emc.c
index ba5cb1f4dfc2,794431b2102c..a98de2c943d1
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@@ -984,7 -984,6 +984,7 @@@ static int tegra_emc_load_timings_from_
static const struct of_device_id tegra_emc_of_match[] = {
{ .compatible = "nvidia,tegra124-emc" },
+ { .compatible = "nvidia,tegra132-emc" },
{}
};
@@@ -1069,7 -1068,7 +1069,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1179,11 -1178,11 +1179,11 @@@ static void emc_debugfs_init(struct dev
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root, emc,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc,
&tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
diff --combined drivers/memory/tegra/tegra186-emc.c
index 8478f59db432,1445ab51af6a..1d0a12164fe7
--- a/drivers/memory/tegra/tegra186-emc.c
+++ b/drivers/memory/tegra/tegra186-emc.c
@@@ -94,7 -94,7 +94,7 @@@ static int tegra186_emc_debug_available
static const struct file_operations tegra186_emc_debug_available_rates_fops = {
.open = tegra186_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -185,7 -185,7 +185,7 @@@ static int tegra186_emc_probe(struct pl
if (IS_ERR(emc->clk)) {
err = PTR_ERR(emc->clk);
dev_err(&pdev->dev, "failed to get EMC clock: %d\n", err);
- return err;
+ goto put_bpmp;
}
platform_set_drvdata(pdev, emc);
@@@ -201,7 -201,7 +201,7 @@@
err = tegra_bpmp_transfer(emc->bpmp, &msg);
if (err < 0) {
dev_err(&pdev->dev, "failed to EMC DVFS pairs: %d\n", err);
- return err;
+ goto put_bpmp;
}
emc->debugfs.min_rate = ULONG_MAX;
@@@ -211,10 -211,8 +211,10 @@@
emc->dvfs = devm_kmalloc_array(&pdev->dev, emc->num_dvfs,
sizeof(*emc->dvfs), GFP_KERNEL);
- if (!emc->dvfs)
- return -ENOMEM;
+ if (!emc->dvfs) {
+ err = -ENOMEM;
+ goto put_bpmp;
+ }
dev_dbg(&pdev->dev, "%u DVFS pairs:\n", emc->num_dvfs);
@@@ -239,10 -237,15 +239,10 @@@
"failed to set rate range [%lu-%lu] for %pC\n",
emc->debugfs.min_rate, emc->debugfs.max_rate,
emc->clk);
- return err;
+ goto put_bpmp;
}
emc->debugfs.root = debugfs_create_dir("emc", NULL);
- if (!emc->debugfs.root) {
- dev_err(&pdev->dev, "failed to create debugfs directory\n");
- return 0;
- }
-
debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
emc, &tegra186_emc_debug_available_rates_fops);
debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
@@@ -251,10 -254,6 +251,10 @@@
emc, &tegra186_emc_debug_max_rate_fops);
return 0;
+
+put_bpmp:
+ tegra_bpmp_put(emc->bpmp);
+ return err;
}
static int tegra186_emc_remove(struct platform_device *pdev)
@@@ -268,10 -267,10 +268,10 @@@
}
static const struct of_device_id tegra186_emc_of_match[] = {
-#if defined(CONFIG_ARCH_TEGRA186_SOC)
+#if defined(CONFIG_ARCH_TEGRA_186_SOC)
{ .compatible = "nvidia,tegra186-emc" },
#endif
-#if defined(CONFIG_ARCH_TEGRA194_SOC)
+#if defined(CONFIG_ARCH_TEGRA_194_SOC)
{ .compatible = "nvidia,tegra194-emc" },
#endif
{ /* sentinel */ }
diff --combined drivers/memory/tegra/tegra20-emc.c
index 027f46287dbf,c63b14f7b356..83ca46345aba
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@@ -7,11 -7,11 +7,11 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
@@@ -144,6 -144,7 +144,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -161,13 -162,17 +161,13 @@@
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
if (!status)
return IRQ_NONE;
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT)
- complete(&emc->clk_handshake_complete);
-
/* notify about HW problem */
if (status & EMC_REFRESH_OVERFLOW_INT)
dev_err_ratelimited(emc->dev,
@@@ -219,13 -224,14 +219,13 @@@ static int emc_prepare_timing_change(st
/* wait until programming has settled */
readl_relaxed(emc->regs + emc_timing_registers[i - 1]);
- reinit_completion(&emc->clk_handshake_complete);
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc, bool flush)
{
- unsigned long timeout;
+ int err;
+ u32 v;
dev_dbg(emc->dev, "%s: flush %d\n", __func__, flush);
@@@ -236,12 -242,11 +236,12 @@@
return 0;
}
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "EMC-CAR handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
return 0;
@@@ -407,7 -412,7 +407,7 @@@ tegra_emc_find_node_by_ram_code(struct
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 emc_cfg, emc_dbg;
emc_cfg = readl_relaxed(emc->regs + EMC_CFG_2);
@@@ -541,7 -546,7 +541,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -642,11 -647,11 +642,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -681,6 -686,7 +681,6 @@@ static int tegra_emc_probe(struct platf
return -ENOMEM;
}
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = tegra_emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/memory/tegra/tegra30-emc.c
index 055af0e08a2e,2ed027408af2..e448a55cb812
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@@ -11,6 -11,7 +11,6 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/err.h>
@@@ -326,6 -327,7 +326,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
struct tegra_mc *mc;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -372,10 -374,52 +372,10 @@@ static int emc_seq_update_timing(struc
return 0;
}
-static void emc_complete_clk_change(struct tegra_emc *emc)
-{
- struct emc_timing *timing = emc->new_timing;
- unsigned int dram_num;
- bool failed = false;
- int err;
-
- /* re-enable auto-refresh */
- dram_num = tegra_mc_get_emem_device_count(emc->mc);
- writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
- emc->regs + EMC_REFCTRL);
-
- /* restore auto-calibration */
- if (emc->vref_cal_toggle)
- writel_relaxed(timing->emc_auto_cal_interval,
- emc->regs + EMC_AUTO_CAL_INTERVAL);
-
- /* restore dynamic self-refresh */
- if (timing->emc_cfg_dyn_self_ref) {
- emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
- writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
- }
-
- /* set number of clocks to wait after each ZQ command */
- if (emc->zcal_long)
- writel_relaxed(timing->emc_zcal_cnt_long,
- emc->regs + EMC_ZCAL_WAIT_CNT);
-
- /* wait for writes to settle */
- udelay(2);
-
- /* update restored timing */
- err = emc_seq_update_timing(emc);
- if (err)
- failed = true;
-
- /* restore early ACK */
- mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
-
- WRITE_ONCE(emc->bad_state, failed);
-}
-
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
@@@ -390,6 -434,18 +390,6 @@@
/* clear interrupts */
writel_relaxed(status, emc->regs + EMC_INTSTATUS);
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT) {
- if (completion_done(&emc->clk_handshake_complete)) {
- dev_err_ratelimited(emc->dev,
- "bogus handshake interrupt\n");
- return IRQ_NONE;
- }
-
- emc_complete_clk_change(emc);
- complete(&emc->clk_handshake_complete);
- }
-
return IRQ_HANDLED;
}
@@@ -745,58 -801,29 +745,58 @@@ static int emc_prepare_timing_change(st
*/
mc_readl(emc->mc, MC_EMEM_ARB_OVERRIDE);
- reinit_completion(&emc->clk_handshake_complete);
-
- emc->new_timing = timing;
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc,
unsigned long rate)
{
- unsigned long timeout;
+ struct emc_timing *timing = emc_find_timing(emc, rate);
+ unsigned int dram_num;
+ int err;
+ u32 v;
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "emc-car handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
- if (READ_ONCE(emc->bad_state))
- return -EIO;
+ /* re-enable auto-refresh */
+ dram_num = tegra_mc_get_emem_device_count(emc->mc);
+ writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
+ emc->regs + EMC_REFCTRL);
+
+ /* restore auto-calibration */
+ if (emc->vref_cal_toggle)
+ writel_relaxed(timing->emc_auto_cal_interval,
+ emc->regs + EMC_AUTO_CAL_INTERVAL);
- return 0;
+ /* restore dynamic self-refresh */
+ if (timing->emc_cfg_dyn_self_ref) {
+ emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
+ writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
+ }
+
+ /* set number of clocks to wait after each ZQ command */
+ if (emc->zcal_long)
+ writel_relaxed(timing->emc_zcal_cnt_long,
+ emc->regs + EMC_ZCAL_WAIT_CNT);
+
+ /* wait for writes to settle */
+ udelay(2);
+
+ /* update restored timing */
+ err = emc_seq_update_timing(emc);
+ if (!err)
+ emc->bad_state = false;
+
+ /* restore early ACK */
+ mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
+
+ return err;
}
static int emc_unprepare_timing_change(struct tegra_emc *emc,
@@@ -1006,7 -1033,7 +1006,7 @@@ static struct device_node *emc_find_nod
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 fbio_cfg5, emc_cfg, emc_dbg;
enum emc_dram_type dram_type;
@@@ -1147,7 -1174,7 +1147,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1248,11 -1275,11 +1248,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -1294,6 -1321,7 +1294,6 @@@ static int tegra_emc_probe(struct platf
if (!emc->mc)
return -EPROBE_DEFER;
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/mfd/ab3100-core.c
index ee71ae04b5e6,0f461180d29f..092c78b5e26f
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@@ -473,7 -473,7 +473,7 @@@ static int ab3100_registers_open(struc
static const struct file_operations ab3100_registers_fops = {
.open = ab3100_registers_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -498,7 -498,7 +498,7 @@@ static ssize_t ab3100_get_set_reg(struc
int i = 0;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((ssize_t)count, (ssize_t)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
diff --combined drivers/mfd/ab3100-otp.c
index c393102e3a39,3667fa4c9fed..3c1157e7a0c1
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@@ -29,22 -29,22 +29,22 @@@
/**
* struct ab3100_otp
- * @dev containing device
- * @locked whether the OTP is locked, after locking, no more bits
+ * @dev: containing device
+ * @locked: whether the OTP is locked, after locking, no more bits
* can be changed but before locking it is still possible
* to change bits from 1->0.
- * @freq clocking frequency for the OTP, this frequency is either
+ * @freq: clocking frequency for the OTP, this frequency is either
* 32768Hz or 1MHz/30
- * @paf product activation flag, indicates whether this is a real
+ * @paf: product activation flag, indicates whether this is a real
* product (paf true) or a lab board etc (paf false)
- * @imeich if this is set it is possible to override the
+ * @imeich: if this is set it is possible to override the
* IMEI number found in the tac, fac and svn fields with
* (secured) software
- * @cid customer ID
- * @tac type allocation code of the IMEI
- * @fac final assembly code of the IMEI
- * @svn software version number of the IMEI
- * @debugfs a debugfs file used when dumping to file
+ * @cid: customer ID
+ * @tac: type allocation code of the IMEI
+ * @fac: final assembly code of the IMEI
+ * @svn: software version number of the IMEI
+ * @debugfs: a debugfs file used when dumping to file
*/
struct ab3100_otp {
struct device *dev;
@@@ -117,7 -117,7 +117,7 @@@ static int ab3100_otp_open(struct inod
static const struct file_operations ab3100_otp_operations = {
.open = ab3100_otp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/mfd/ab8500-debugfs.c
index 6d1bf7c3ca3b,fcdb618fe2db..838798c98d0f
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@@ -1376,7 -1376,7 +1376,7 @@@ static int ab8500_all_banks_open(struc
static const struct file_operations ab8500_all_banks_fops = {
.open = ab8500_all_banks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t ab8500_hwreg_write(struc
int buf_size, ret;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((int)count, (int)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
@@@ -1959,7 -1959,7 +1959,7 @@@ static ssize_t ab8500_unsubscribe_write
static const struct file_operations ab8500_bank_fops = {
.open = ab8500_bank_open,
.write = ab8500_bank_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1968,7 -1968,7 +1968,7 @@@
static const struct file_operations ab8500_address_fops = {
.open = ab8500_address_open,
.write = ab8500_address_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1977,7 -1977,7 +1977,7 @@@
static const struct file_operations ab8500_val_fops = {
.open = ab8500_val_open,
.write = ab8500_val_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1986,7 -1986,7 +1986,7 @@@
static const struct file_operations ab8500_subscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_subscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1995,7 -1995,7 +1995,7 @@@
static const struct file_operations ab8500_unsubscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_unsubscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -2004,7 -2004,7 +2004,7 @@@
static const struct file_operations ab8500_hwreg_fops = {
.open = ab8500_hwreg_open,
.write = ab8500_hwreg_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
diff --combined drivers/mfd/tps65010.c
index 7e7dbee58ca9,19ed0a372389..31259867f637
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@@ -290,7 -290,7 +290,7 @@@ static int dbg_tps_open(struct inode *i
static const struct file_operations debug_fops = {
.open = dbg_tps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -404,6 -404,7 +404,6 @@@ static void tps65010_work(struct work_s
tps65010_interrupt(tps);
if (test_and_clear_bit(FLAG_VBUS_CHANGED, &tps->flags)) {
- int status;
u8 chgconfig, tmp;
chgconfig = i2c_smbus_read_byte_data(tps->client,
@@@ -414,8 -415,8 +414,8 @@@
else if (tps->vbus >= 100)
chgconfig |= TPS_VBUS_CHARGING;
- status = i2c_smbus_write_byte_data(tps->client,
- TPS_CHGCONFIG, chgconfig);
+ i2c_smbus_write_byte_data(tps->client,
+ TPS_CHGCONFIG, chgconfig);
/* vbus update fails unless VBUS is connected! */
tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
diff --combined drivers/misc/habanalabs/debugfs.c
index 0bc036e01ee8,eab1a2dc2d6e..8742472c0542
--- a/drivers/misc/habanalabs/debugfs.c
+++ b/drivers/misc/habanalabs/debugfs.c
@@@ -36,7 -36,7 +36,7 @@@ static int hl_debugfs_i2c_read(struct h
pkt.i2c_reg = i2c_reg;
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
- HL_DEVICE_TIMEOUT_USEC, (long *) val);
+ 0, (long *) val);
if (rc)
dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc);
@@@ -63,7 -63,7 +63,7 @@@ static int hl_debugfs_i2c_write(struct
pkt.value = cpu_to_le64(val);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
- HL_DEVICE_TIMEOUT_USEC, NULL);
+ 0, NULL);
if (rc)
dev_err(hdev->dev, "Failed to write to I2C, error %d\n", rc);
@@@ -87,7 -87,7 +87,7 @@@ static void hl_debugfs_led_set(struct h
pkt.value = cpu_to_le64(state);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
- HL_DEVICE_TIMEOUT_USEC, NULL);
+ 0, NULL);
if (rc)
dev_err(hdev->dev, "Failed to set LED %d, error %d\n", led, rc);
@@@ -981,7 -981,7 +981,7 @@@ static ssize_t hl_clk_gate_read(struct
if (*ppos)
return 0;
- sprintf(tmp_buf, "%d\n", hdev->clock_gating);
+ sprintf(tmp_buf, "0x%llx\n", hdev->clock_gating_mask);
rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,
strlen(tmp_buf) + 1);
@@@ -993,7 -993,7 +993,7 @@@ static ssize_t hl_clk_gate_write(struc
{
struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
struct hl_device *hdev = entry->hdev;
- u32 value;
+ u64 value;
ssize_t rc;
if (atomic_read(&hdev->in_reset)) {
@@@ -1002,12 -1002,19 +1002,12 @@@
return 0;
}
- rc = kstrtouint_from_user(buf, count, 10, &value);
+ rc = kstrtoull_from_user(buf, count, 16, &value);
if (rc)
return rc;
- if (value) {
- hdev->clock_gating = 1;
- if (hdev->asic_funcs->enable_clock_gating)
- hdev->asic_funcs->enable_clock_gating(hdev);
- } else {
- if (hdev->asic_funcs->disable_clock_gating)
- hdev->asic_funcs->disable_clock_gating(hdev);
- hdev->clock_gating = 0;
- }
+ hdev->clock_gating_mask = value;
+ hdev->asic_funcs->set_clock_gating(hdev);
return count;
}
@@@ -1144,7 -1151,7 +1144,7 @@@ static ssize_t hl_debugfs_write(struct
static const struct file_operations hl_debugfs_fops = {
.owner = THIS_MODULE,
.open = hl_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = hl_debugfs_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 05f33b7e3677,3891fb39a889..424026da73cc
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@@ -229,7 -229,7 +229,7 @@@ static int cim_la_open(struct inode *in
static const struct file_operations cim_la_fops = {
.owner = THIS_MODULE,
.open = cim_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -272,7 -272,7 +272,7 @@@ static int cim_pif_la_open(struct inod
static const struct file_operations cim_pif_la_fops = {
.owner = THIS_MODULE,
.open = cim_pif_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -318,7 -318,7 +318,7 @@@ static int cim_ma_la_open(struct inode
static const struct file_operations cim_ma_la_fops = {
.owner = THIS_MODULE,
.open = cim_ma_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -411,7 -411,7 +411,7 @@@ static int cim_ibq_open(struct inode *i
static const struct file_operations cim_ibq_fops = {
.owner = THIS_MODULE,
.open = cim_ibq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -440,7 -440,7 +440,7 @@@ static int cim_obq_open(struct inode *i
static const struct file_operations cim_obq_fops = {
.owner = THIS_MODULE,
.open = cim_obq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -686,7 -686,7 +686,7 @@@ static ssize_t tp_la_write(struct file
static const struct file_operations tp_la_fops = {
.owner = THIS_MODULE,
.open = tp_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
.write = tp_la_write
@@@ -722,7 -722,7 +722,7 @@@ static int ulprx_la_open(struct inode *
static const struct file_operations ulprx_la_fops = {
.owner = THIS_MODULE,
.open = ulprx_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -812,7 -812,7 +812,7 @@@ static ssize_t pm_stats_clear(struct fi
static const struct file_operations pm_stats_debugfs_fops = {
.owner = THIS_MODULE,
.open = pm_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pm_stats_clear
@@@ -1136,7 -1136,7 +1136,7 @@@ static int devlog_open(struct inode *in
static const struct file_operations devlog_fops = {
.owner = THIS_MODULE,
.open = devlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -1234,7 -1234,7 +1234,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -1317,7 -1317,7 +1317,7 @@@ static ssize_t mbox_write(struct file *
static const struct file_operations mbox_debugfs_fops = {
.owner = THIS_MODULE,
.open = mbox_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mbox_write
@@@ -1610,7 -1610,7 +1610,7 @@@ out
static const struct file_operations mps_trc_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_trc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mps_trc_write
@@@ -1930,7 -1930,7 +1930,7 @@@ static int mps_tcam_open(struct inode *
static const struct file_operations mps_tcam_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_tcam_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2007,7 -2007,7 +2007,7 @@@ static int rss_open(struct inode *inode
static const struct file_operations rss_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2226,7 -2226,7 +2226,7 @@@ static ssize_t rss_key_write(struct fil
static const struct file_operations rss_key_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_key_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = rss_key_write
@@@ -2310,7 -2310,7 +2310,7 @@@ static int rss_pf_config_open(struct in
static const struct file_operations rss_pf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_pf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2373,7 -2373,7 +2373,7 @@@ static int rss_vf_config_open(struct in
static const struct file_operations rss_vf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_vf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2561,7 -2561,7 +2561,7 @@@ static int dcb_info_open(struct inode *
static const struct file_operations dcb_info_debugfs_fops = {
.owner = THIS_MODULE,
.open = dcb_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2742,58 -2742,6 +2742,58 @@@ do {
}
r -= eth_entries;
+ for_each_port(adap, j) {
+ struct port_info *pi = adap2pinfo(adap, j);
+ const struct sge_eth_rxq *rx;
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (!pi->vi_mirror_count) {
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ if (r >= DIV_ROUND_UP(pi->nmirrorqsets, 4)) {
+ r -= DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ rx = &s->mirror_rxq[j][r * 4];
+ n = min(4, pi->nmirrorqsets - 4 * r);
+
+ S("QType:", "Mirror-Rxq");
+ S("Interface:",
+ rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
+ R("RspQ ID:", rspq.abs_id);
+ R("RspQ size:", rspq.size);
+ R("RspQE size:", rspq.iqe_len);
+ R("RspQ CIDX:", rspq.cidx);
+ R("RspQ Gen:", rspq.gen);
+ S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
+ S3("u", "Intr pktcnt:", s->counter_val[rx[i].rspq.pktcnt_idx]);
+ R("FL ID:", fl.cntxt_id);
+ R("FL size:", fl.size - 8);
+ R("FL pend:", fl.pend_cred);
+ R("FL avail:", fl.avail);
+ R("FL PIDX:", fl.pidx);
+ R("FL CIDX:", fl.cidx);
+ RL("RxPackets:", stats.pkts);
+ RL("RxCSO:", stats.rx_cso);
+ RL("VLANxtract:", stats.vlan_ex);
+ RL("LROmerged:", stats.lro_merged);
+ RL("LROpackets:", stats.lro_pkts);
+ RL("RxDrops:", stats.rx_drops);
+ RL("RxBadPkts:", stats.bad_rx_pkts);
+ RL("FLAllocErr:", fl.alloc_failed);
+ RL("FLLrgAlcErr:", fl.large_alloc_failed);
+ RL("FLMapErr:", fl.mapping_err);
+ RL("FLLow:", fl.low);
+ RL("FLStarving:", fl.starving);
+
+ mutex_unlock(&pi->vi_mirror_mutex);
+ goto out;
+ }
+
if (!adap->tc_mqprio)
goto skip_mqprio;
@@@ -3150,10 -3098,9 +3150,10 @@@ unlock
return 0;
}
-static int sge_queue_entries(const struct adapter *adap)
+static int sge_queue_entries(struct adapter *adap)
{
int i, tot_uld_entries = 0, eohw_entries = 0, eosw_entries = 0;
+ int mirror_rxq_entries = 0;
if (adap->tc_mqprio) {
struct cxgb4_tc_port_mqprio *port_mqprio;
@@@ -3176,15 -3123,6 +3176,15 @@@
mutex_unlock(&adap->tc_mqprio->mqprio_mutex);
}
+ for_each_port(adap, i) {
+ struct port_info *pi = adap2pinfo(adap, i);
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (pi->vi_mirror_count)
+ mirror_rxq_entries += DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ }
+
if (!is_uld(adap))
goto lld_only;
@@@ -3199,7 -3137,7 +3199,7 @@@
mutex_unlock(&uld_mutex);
lld_only:
- return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
+ return DIV_ROUND_UP(adap->sge.ethqsets, 4) + mirror_rxq_entries +
eohw_entries + eosw_entries + tot_uld_entries +
DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
}
@@@ -3245,7 -3183,7 +3245,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index dbe8ee7e0e21,20e74d5e837f..6983e3d55e22
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@@ -2039,7 -2039,7 +2039,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2192,7 -2192,7 +2192,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2338,7 -2338,7 +2338,7 @@@ static int sge_qstats_open(struct inod
static const struct file_operations sge_qstats_proc_fops = {
.owner = THIS_MODULE,
.open = sge_qstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2436,7 -2436,7 +2436,7 @@@ static int interfaces_open(struct inod
static const struct file_operations interfaces_proc_fops = {
.owner = THIS_MODULE,
.open = interfaces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2916,39 -2916,6 +2916,39 @@@ static const struct net_device_ops cxgb
#endif
};
+/**
+ * cxgb4vf_get_port_mask - Get port mask for the VF based on mac
+ * address stored on the adapter
+ * @adapter: The adapter
+ *
+ * Find the the port mask for the VF based on the index of mac
+ * address stored in the adapter. If no mac address is stored on
+ * the adapter for the VF, use the port mask received from the
+ * firmware.
+ */
+static unsigned int cxgb4vf_get_port_mask(struct adapter *adapter)
+{
+ unsigned int naddr = 1, pidx = 0;
+ unsigned int pmask, rmask = 0;
+ u8 mac[ETH_ALEN];
+ int err;
+
+ pmask = adapter->params.vfres.pmask;
+ while (pmask) {
+ if (pmask & 1) {
+ err = t4vf_get_vf_mac_acl(adapter, pidx, &naddr, mac);
+ if (!err && !is_zero_ether_addr(mac))
+ rmask |= (1 << pidx);
+ }
+ pmask >>= 1;
+ pidx++;
+ }
+ if (!rmask)
+ rmask = adapter->params.vfres.pmask;
+
+ return rmask;
+}
+
/*
* "Probe" a device: initialize a device and construct all kernel and driver
* state needed to manage the device. This routine is called "init_one" in
@@@ -2957,12 -2924,13 +2957,12 @@@
static int cxgb4vf_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- int pci_using_dac;
- int err, pidx;
- unsigned int pmask;
struct adapter *adapter;
- struct port_info *pi;
struct net_device *netdev;
- unsigned int pf;
+ struct port_info *pi;
+ unsigned int pmask;
+ int pci_using_dac;
+ int err, pidx;
/*
* Initialize generic PCI device state.
@@@ -3105,7 -3073,8 +3105,7 @@@
/*
* Allocate our "adapter ports" and stitch everything together.
*/
- pmask = adapter->params.vfres.pmask;
- pf = t4vf_get_pf_from_vf(adapter);
+ pmask = cxgb4vf_get_port_mask(adapter);
for_each_port(adapter, pidx) {
int port_id, viid;
u8 mac[ETH_ALEN];
@@@ -3188,7 -3157,7 +3188,7 @@@
goto err_free_dev;
}
- err = t4vf_get_vf_mac_acl(adapter, pf, &naddr, mac);
+ err = t4vf_get_vf_mac_acl(adapter, port_id, &naddr, mac);
if (err) {
dev_err(&pdev->dev,
"unable to determine MAC ACL address, "
diff --combined drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
index 56d9927fbfda,bc99fe0aabf0..f80f94e1e10a
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
@@@ -21,7 -21,7 +21,7 @@@ static int dpaa2_dbg_cpu_show(struct se
seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
"CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
- "Tx SG", "Tx realloc", "Enq busy");
+ "Tx SG", "Tx converted to SG", "Enq busy");
for_each_online_cpu(i) {
stats = per_cpu_ptr(priv->percpu_stats, i);
@@@ -35,7 -35,7 +35,7 @@@
stats->tx_errors,
extras->tx_conf_frames,
extras->tx_sg_frames,
- extras->tx_reallocs,
+ extras->tx_converted_sg_frames,
extras->tx_portal_busy);
}
@@@ -56,7 -56,7 +56,7 @@@ static int dpaa2_dbg_cpu_open(struct in
static const struct file_operations dpaa2_dbg_cpu_ops = {
.open = dpaa2_dbg_cpu_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -90,10 -90,6 +90,10 @@@ static int dpaa2_dbg_fqs_show(struct se
if (err)
fcnt = 0;
+ /* Skip FQs with no traffic */
+ if (!fq->stats.frames && !fcnt)
+ continue;
+
seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",
fq->fqid,
fq->target_cpu,
@@@ -120,7 -116,7 +120,7 @@@ static int dpaa2_dbg_fqs_open(struct in
static const struct file_operations dpaa2_dbg_fq_ops = {
.open = dpaa2_dbg_fqs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -165,7 -161,7 +165,7 @@@ static int dpaa2_dbg_ch_open(struct ino
static const struct file_operations dpaa2_dbg_ch_ops = {
.open = dpaa2_dbg_ch_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
index 267ad4eddb5c,cf3b7ec4db73..a3a1691e5ed9
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
@@@ -260,7 -260,7 +260,7 @@@ struct hcmd_write_data
__be32 cmd_id;
__be32 flags;
__be16 length;
- u8 data[0];
+ u8 data[];
} __packed;
static ssize_t iwl_dbgfs_send_hcmd_write(struct iwl_fw_runtime *fwrt, char *buf,
@@@ -419,7 -419,7 +419,7 @@@ static int iwl_dbgfs_fw_info_open(struc
static const struct file_operations iwl_dbgfs_fw_info_ops = {
.owner = THIS_MODULE,
.open = iwl_dbgfs_fw_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
diff --combined drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
index d06afcf46d67,c61bd9803078..e356d9ec5957
--- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
@@@ -181,7 -181,7 +181,7 @@@ mt7615_ampdu_stat_open(struct inode *in
static const struct file_operations fops_ampdu_stat = {
.open = mt7615_ampdu_stat_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -234,11 -234,10 +234,11 @@@ mt7615_queues_acq(struct seq_file *s, v
int i;
for (i = 0; i < 16; i++) {
- int j, acs = i / 4, index = i % 4;
+ int j, wmm_idx = i % MT7615_MAX_WMM_SETS;
+ int acs = i / MT7615_MAX_WMM_SETS;
u32 ctrl, val, qlen = 0;
- val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
+ val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, wmm_idx));
ctrl = BIT(31) | BIT(15) | (acs << 8);
for (j = 0; j < 32; j++) {
@@@ -246,11 -245,11 +246,11 @@@
continue;
mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
- ctrl | (j + (index << 5)));
+ ctrl | (j + (wmm_idx << 5)));
qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
GENMASK(11, 0));
}
- seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
+ seq_printf(s, "AC%d%d: queued=%d\n", wmm_idx, acs, qlen);
}
return 0;
diff --combined drivers/net/xen-netback/xenbus.c
index 7e62a6ee7622,06b253eba25d..aad7e526eb5f
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@@ -152,7 -152,7 +152,7 @@@ static int xenvif_io_ring_open(struct i
static const struct file_operations xenvif_dbg_io_ring_ops_fops = {
.owner = THIS_MODULE,
.open = xenvif_io_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = xenvif_write_io_ring,
@@@ -393,24 -393,6 +393,24 @@@ static void set_backend_state(struct ba
}
}
+static void read_xenbus_frontend_xdp(struct backend_info *be,
+ struct xenbus_device *dev)
+{
+ struct xenvif *vif = be->vif;
+ u16 headroom;
+ int err;
+
+ err = xenbus_scanf(XBT_NIL, dev->otherend,
+ "xdp-headroom", "%hu", &headroom);
+ if (err != 1) {
+ vif->xdp_headroom = 0;
+ return;
+ }
+ if (headroom > XEN_NETIF_MAX_XDP_HEADROOM)
+ headroom = XEN_NETIF_MAX_XDP_HEADROOM;
+ vif->xdp_headroom = headroom;
+}
+
/**
* Callback received when the frontend's state changes.
*/
@@@ -435,11 -417,6 +435,11 @@@ static void frontend_changed(struct xen
set_backend_state(be, XenbusStateConnected);
break;
+ case XenbusStateReconfiguring:
+ read_xenbus_frontend_xdp(be, dev);
+ xenbus_switch_state(dev, XenbusStateReconfigured);
+ break;
+
case XenbusStateClosing:
set_backend_state(be, XenbusStateClosing);
break;
@@@ -970,8 -947,6 +970,8 @@@ static int read_xenbus_vif_flags(struc
vif->ipv6_csum = !!xenbus_read_unsigned(dev->otherend,
"feature-ipv6-csum-offload", 0);
+ read_xenbus_frontend_xdp(be, dev);
+
return 0;
}
@@@ -1061,15 -1036,6 +1061,15 @@@ static int netback_probe(struct xenbus_
goto abort_transaction;
}
+ /* we can adjust a headroom for netfront XDP processing */
+ err = xenbus_printf(xbt, dev->nodename,
+ "feature-xdp-headroom", "%d",
+ provides_xdp_headroom);
+ if (err) {
+ message = "writing feature-xdp-headroom";
+ goto abort_transaction;
+ }
+
/* We don't support rx-flip path (except old guests who
* don't grok this feature flag).
*/
diff --combined drivers/pci/controller/pci-tegra.c
index 71bf4b2684ac,bfb8dbc2d0ea..66386f742bd7
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@@ -1462,7 -1462,7 +1462,7 @@@ static int tegra_pcie_get_resources(str
{
struct device *dev = pcie->dev;
struct platform_device *pdev = to_platform_device(dev);
- struct resource *pads, *afi, *res;
+ struct resource *res;
const struct tegra_pcie_soc *soc = pcie->soc;
int err;
@@@ -1486,13 -1486,15 +1486,13 @@@
}
}
- pads = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pads");
- pcie->pads = devm_ioremap_resource(dev, pads);
+ pcie->pads = devm_platform_ioremap_resource_byname(pdev, "pads");
if (IS_ERR(pcie->pads)) {
err = PTR_ERR(pcie->pads);
goto phys_put;
}
- afi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "afi");
- pcie->afi = devm_ioremap_resource(dev, afi);
+ pcie->afi = devm_platform_ioremap_resource_byname(pdev, "afi");
if (IS_ERR(pcie->afi)) {
err = PTR_ERR(pcie->afi);
goto phys_put;
@@@ -2632,7 -2634,7 +2632,7 @@@ static int tegra_pcie_ports_open(struc
static const struct file_operations tegra_pcie_ports_ops = {
.owner = THIS_MODULE,
.open = tegra_pcie_ports_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2668,6 -2670,7 +2668,6 @@@ static int tegra_pcie_probe(struct plat
struct device *dev = &pdev->dev;
struct pci_host_bridge *host;
struct tegra_pcie *pcie;
- struct pci_bus *child;
struct resource *bus;
int err;
@@@ -2718,12 -2721,20 +2718,12 @@@
host->map_irq = tegra_pcie_map_irq;
host->swizzle_irq = pci_common_swizzle;
- err = pci_scan_root_bus_bridge(host);
+ err = pci_host_probe(host);
if (err < 0) {
dev_err(dev, "failed to register host: %d\n", err);
goto pm_runtime_put;
}
- pci_bus_size_bridges(host->bus);
- pci_bus_assign_resources(host->bus);
-
- list_for_each_entry(child, &host->bus->children, node)
- pcie_bus_configure_settings(child);
-
- pci_bus_add_devices(host->bus);
-
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_pcie_debugfs_init(pcie);
if (err < 0)
diff --combined drivers/platform/x86/asus-wmi.c
index 8f4acdc06b13,9efa854fff13..13f7d1bf076b
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@@ -441,7 -441,6 +441,7 @@@ static int asus_wmi_battery_add(struct
* battery is named BATT.
*/
if (strcmp(battery->desc->name, "BAT0") != 0 &&
+ strcmp(battery->desc->name, "BAT1") != 0 &&
strcmp(battery->desc->name, "BATT") != 0)
return -ENODEV;
@@@ -2503,7 -2502,7 +2503,7 @@@ static int asus_wmi_debugfs_open(struc
static const struct file_operations asus_wmi_debugfs_io_ops = {
.owner = THIS_MODULE,
.open = asus_wmi_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/platform/x86/intel_pmc_core.c
index 338ea5222555,4941349004f6..e0bee021d044
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@@ -415,7 -415,7 +415,7 @@@ static const struct pmc_bit_map tgl_lpm
{"PCIe_Gen3PLL_OFF_STS", BIT(20)},
{"OPIOPLL_OFF_STS", BIT(21)},
{"OCPLL_OFF_STS", BIT(22)},
- {"AudioPLL_OFF_STS", BIT(23)},
+ {"MainPLL_OFF_STS", BIT(23)},
{"MIPIPLL_OFF_STS", BIT(24)},
{"Fast_XTAL_Osc_OFF_STS", BIT(25)},
{"AC_Ring_Osc_OFF_STS", BIT(26)},
@@@ -795,7 -795,7 +795,7 @@@ static int pmc_core_mphy_pg_show(struc
msleep(10);
val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
- for (index = 0; map[index].name && index < 8; index++) {
+ for (index = 0; index < 8 && map[index].name; index++) {
seq_printf(s, "%-32s\tState: %s\n",
map[index].name,
map[index].bit_mask & val_low ? "Not power gated" :
@@@ -894,7 -894,7 +894,7 @@@ static int pmc_core_ltr_ignore_open(str
static const struct file_operations pmc_core_ltr_ignore_ops = {
.open = pmc_core_ltr_ignore_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = pmc_core_ltr_ignore_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined drivers/platform/x86/thinkpad_acpi.c
index edae2db27984,f571d6254e7c..00264903db4a
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@@ -885,19 -885,11 +885,19 @@@ static ssize_t dispatch_proc_write(stru
if (!ibm || !ibm->write)
return -EINVAL;
+ if (count > PAGE_SIZE - 1)
+ return -EINVAL;
+
+ kernbuf = kmalloc(count + 1, GFP_KERNEL);
+ if (!kernbuf)
+ return -ENOMEM;
- kernbuf = strndup_user(userbuf, PAGE_SIZE);
- if (IS_ERR(kernbuf))
- return PTR_ERR(kernbuf);
+ if (copy_from_user(kernbuf, userbuf, count)) {
+ kfree(kernbuf);
+ return -EFAULT;
+ }
+ kernbuf[count] = 0;
ret = ibm->write(kernbuf);
if (ret == 0)
ret = count;
@@@ -909,7 -901,7 +909,7 @@@
static const struct proc_ops dispatch_proc_ops = {
.proc_open = dispatch_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = dispatch_proc_write,
@@@ -4030,8 -4022,8 +4030,8 @@@ static bool hotkey_notify_6xxx(const u3
return true;
case TP_HKEY_EV_THM_CSM_COMPLETED:
pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n");
- /* recommended action: do nothing, we don't have
- * Lenovo ATM information */
+ /* Thermal event - pass on to event handler */
+ tpacpi_driver_event(hkey);
return true;
case TP_HKEY_EV_THM_TRANSFM_CHANGED:
pr_debug("EC reports: Thermal Transformation changed (GMTS)\n");
@@@ -6963,13 -6955,10 +6963,13 @@@ static int __init brightness_init(struc
pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n");
return 1;
}
- } else if (tp_features.bright_acpimode && brightness_enable > 1) {
- pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n");
+ } else if (!tp_features.bright_acpimode) {
+ pr_notice("ACPI backlight interface not available\n");
+ return 1;
}
+ pr_notice("ACPI native brightness control enabled\n");
+
/*
* Check for module parameter bogosity, note that we
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
@@@ -7968,7 -7957,7 +7968,7 @@@ static struct ibm_struct volume_driver_
* does so, its initial value is meaningless (0x07).
*
* For firmware bugs, refer to:
- * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
+ * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
@@@ -7993,7 -7982,7 +7993,7 @@@
* mode.
*
* For firmware bugs, refer to:
- * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
+ * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
@@@ -9806,105 -9795,6 +9806,105 @@@ static struct ibm_struct lcdshadow_driv
.write = lcdshadow_write,
};
+/*************************************************************************
+ * DYTC subdriver, for the Lenovo lapmode feature
+ */
+
+#define DYTC_CMD_GET 2 /* To get current IC function and mode */
+#define DYTC_GET_LAPMODE_BIT 17 /* Set when in lapmode */
+
+static bool dytc_lapmode;
+
+static void dytc_lapmode_notify_change(void)
+{
+ sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "dytc_lapmode");
+}
+
+static int dytc_command(int command, int *output)
+{
+ acpi_handle dytc_handle;
+
+ if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DYTC", &dytc_handle))) {
+ /* Platform doesn't support DYTC */
+ return -ENODEV;
+ }
+ if (!acpi_evalf(dytc_handle, output, NULL, "dd", command))
+ return -EIO;
+ return 0;
+}
+
+static int dytc_lapmode_get(bool *state)
+{
+ int output, err;
+
+ err = dytc_command(DYTC_CMD_GET, &output);
+ if (err)
+ return err;
+ *state = output & BIT(DYTC_GET_LAPMODE_BIT) ? true : false;
+ return 0;
+}
+
+static void dytc_lapmode_refresh(void)
+{
+ bool new_state;
+ int err;
+
+ err = dytc_lapmode_get(&new_state);
+ if (err || (new_state == dytc_lapmode))
+ return;
+
+ dytc_lapmode = new_state;
+ dytc_lapmode_notify_change();
+}
+
+/* sysfs lapmode entry */
+static ssize_t dytc_lapmode_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", dytc_lapmode);
+}
+
+static DEVICE_ATTR_RO(dytc_lapmode);
+
+static struct attribute *dytc_attributes[] = {
+ &dev_attr_dytc_lapmode.attr,
+ NULL,
+};
+
+static const struct attribute_group dytc_attr_group = {
+ .attrs = dytc_attributes,
+};
+
+static int tpacpi_dytc_init(struct ibm_init_struct *iibm)
+{
+ int err;
+
+ err = dytc_lapmode_get(&dytc_lapmode);
+ /* If support isn't available (ENODEV) then don't return an error
+ * but just don't create the sysfs group
+ */
+ if (err == -ENODEV)
+ return 0;
+ /* For all other errors we can flag the failure */
+ if (err)
+ return err;
+
+ /* Platform supports this feature - create the group */
+ err = sysfs_create_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group);
+ return err;
+}
+
+static void dytc_exit(void)
+{
+ sysfs_remove_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group);
+}
+
+static struct ibm_struct dytc_driver_data = {
+ .name = "dytc",
+ .exit = dytc_exit,
+};
+
/****************************************************************************
****************************************************************************
*
@@@ -9952,10 -9842,6 +9952,10 @@@ static void tpacpi_driver_event(const u
mutex_unlock(&kbdlight_mutex);
}
+
+ if (hkey_event == TP_HKEY_EV_THM_CSM_COMPLETED)
+ dytc_lapmode_refresh();
+
}
static void hotkey_driver_event(const unsigned int scancode)
@@@ -10208,7 -10094,7 +10208,7 @@@ static int __must_check __init get_thin
* X32 or newer, all Z series; Some models must have an
* up-to-date BIOS or they will not be detected.
*
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See https://thinkwiki.org/wiki/List_of_DMI_IDs
*/
while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
if (sscanf(dev->name,
@@@ -10394,10 -10280,6 +10394,10 @@@ static struct ibm_init_struct ibms_init
.init = tpacpi_lcdshadow_init,
.data = &lcdshadow_driver_data,
},
+ {
+ .init = tpacpi_dytc_init,
+ .data = &dytc_driver_data,
+ },
};
static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
@@@ -10731,8 -10613,8 +10731,8 @@@ MODULE_DEVICE_TABLE(acpi, ibm_htk_devic
/*
* DMI matching for module autoloading
*
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
- * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
+ * See https://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See https://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
*
* Only models listed in thinkwiki will be supported, so add yours
* if it is not there yet.
diff --combined drivers/platform/x86/toshiba_acpi.c
index 36fff00af9eb,770477bb407d..707c537e3c9b
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@@ -1428,7 -1428,7 +1428,7 @@@ static ssize_t lcd_proc_write(struct fi
static const struct proc_ops lcd_proc_ops = {
.proc_open = lcd_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = lcd_proc_write,
@@@ -1534,7 -1534,7 +1534,7 @@@ static ssize_t video_proc_write(struct
static const struct proc_ops video_proc_ops = {
.proc_open = video_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = video_proc_write,
@@@ -1611,7 -1611,7 +1611,7 @@@ static ssize_t fan_proc_write(struct fi
static const struct proc_ops fan_proc_ops = {
.proc_open = fan_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = fan_proc_write,
@@@ -1655,7 -1655,7 +1655,7 @@@ static ssize_t keys_proc_write(struct f
static const struct proc_ops keys_proc_ops = {
.proc_open = keys_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = keys_proc_write,
@@@ -3114,7 -3114,7 +3114,7 @@@ static int toshiba_acpi_add(struct acpi
toshiba_accelerometer_available(dev);
if (dev->accelerometer_supported) {
- dev->indio_dev = iio_device_alloc(sizeof(*dev));
+ dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
if (!dev->indio_dev) {
pr_err("Unable to allocate iio device\n");
goto iio_error;
@@@ -3124,6 -3124,7 +3124,6 @@@
dev->indio_dev->info = &toshiba_iio_accel_info;
dev->indio_dev->name = "Toshiba accelerometer";
- dev->indio_dev->dev.parent = &acpi_dev->dev;
dev->indio_dev->modes = INDIO_DIRECT_MODE;
dev->indio_dev->channels = toshiba_iio_accel_channels;
dev->indio_dev->num_channels =
diff --combined drivers/pwm/core.c
index 276e939a5684,ad39b0bb0b03..a7037136d49f
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@@ -510,12 -510,12 +510,12 @@@ static void pwm_apply_state_debug(struc
last->period > s2.period &&
last->period <= state->period)
dev_warn(chip->dev,
- ".apply didn't pick the best available period (requested: %u, applied: %u, possible: %u)\n",
+ ".apply didn't pick the best available period (requested: %llu, applied: %llu, possible: %llu)\n",
state->period, s2.period, last->period);
if (state->enabled && state->period < s2.period)
dev_warn(chip->dev,
- ".apply is supposed to round down period (requested: %u, applied: %u)\n",
+ ".apply is supposed to round down period (requested: %llu, applied: %llu)\n",
state->period, s2.period);
if (state->enabled &&
@@@ -524,14 -524,14 +524,14 @@@
last->duty_cycle > s2.duty_cycle &&
last->duty_cycle <= state->duty_cycle)
dev_warn(chip->dev,
- ".apply didn't pick the best available duty cycle (requested: %u/%u, applied: %u/%u, possible: %u/%u)\n",
+ ".apply didn't pick the best available duty cycle (requested: %llu/%llu, applied: %llu/%llu, possible: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period,
last->duty_cycle, last->period);
if (state->enabled && state->duty_cycle < s2.duty_cycle)
dev_warn(chip->dev,
- ".apply is supposed to round down duty_cycle (requested: %u/%u, applied: %u/%u)\n",
+ ".apply is supposed to round down duty_cycle (requested: %llu/%llu, applied: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period);
@@@ -558,7 -558,7 +558,7 @@@
(s1.enabled && s1.period != last->period) ||
(s1.enabled && s1.duty_cycle != last->duty_cycle)) {
dev_err(chip->dev,
- ".apply is not idempotent (ena=%d pol=%d %u/%u) -> (ena=%d pol=%d %u/%u)\n",
+ ".apply is not idempotent (ena=%d pol=%d %llu/%llu) -> (ena=%d pol=%d %llu/%llu)\n",
s1.enabled, s1.polarity, s1.duty_cycle, s1.period,
last->enabled, last->polarity, last->duty_cycle,
last->period);
@@@ -1284,8 -1284,8 +1284,8 @@@ static void pwm_dbg_show(struct pwm_chi
if (state.enabled)
seq_puts(s, " enabled");
- seq_printf(s, " period: %u ns", state.period);
- seq_printf(s, " duty: %u ns", state.duty_cycle);
+ seq_printf(s, " period: %llu ns", state.period);
+ seq_printf(s, " duty: %llu ns", state.duty_cycle);
seq_printf(s, " polarity: %s",
state.polarity ? "inverse" : "normal");
@@@ -1342,7 -1342,7 +1342,7 @@@ static int pwm_seq_open(struct inode *i
static const struct file_operations pwm_debugfs_ops = {
.owner = THIS_MODULE,
.open = pwm_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/s390/block/dasd.c
index eb17fea8075c,17a9a35e9aed..20f256e6d38b
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@@ -1089,7 -1089,7 +1089,7 @@@ static int dasd_stats_open(struct inod
static const struct file_operations dasd_stats_raw_fops = {
.owner = THIS_MODULE,
.open = dasd_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = dasd_stats_write,
@@@ -2802,7 -2802,7 +2802,7 @@@ static void __dasd_cleanup_cqr(struct d
blk_update_request(req, BLK_STS_OK,
blk_rq_bytes(req) - proc_bytes);
blk_mq_requeue_request(req, true);
- } else {
+ } else if (likely(!blk_should_fake_timeout(req->q))) {
blk_mq_complete_request(req);
}
}
diff --combined drivers/soc/qcom/socinfo.c
index e19102f46302,ab2a56c75f13..d9c64a78e49c
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@@ -24,7 -24,6 +24,7 @@@
#define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
#define SMEM_SOCINFO_BUILD_ID_LENGTH 32
+#define SMEM_SOCINFO_CHIP_ID_LENGTH 32
/*
* SMEM item id, used to acquire handles to respective
@@@ -122,16 -121,6 +122,16 @@@ struct socinfo
__le32 chip_family;
__le32 raw_device_family;
__le32 raw_device_num;
+ /* Version 13 */
+ __le32 nproduct_id;
+ char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
+ /* Version 14 */
+ __le32 num_clusters;
+ __le32 ncluster_array_offset;
+ __le32 num_defective_parts;
+ __le32 ndefective_parts_array_offset;
+ /* Version 15 */
+ __le32 nmodem_supported;
};
#ifdef CONFIG_DEBUG_FS
@@@ -146,12 -135,6 +146,12 @@@ struct socinfo_params
u32 raw_ver;
u32 hw_plat;
u32 fmt;
+ u32 nproduct_id;
+ u32 num_clusters;
+ u32 ncluster_array_offset;
+ u32 num_defective_parts;
+ u32 ndefective_parts_array_offset;
+ u32 nmodem_supported;
};
struct smem_image_version {
@@@ -219,10 -202,8 +219,10 @@@ static const struct soc_id soc_id[] =
{ 310, "MSM8996AU" },
{ 311, "APQ8096AU" },
{ 312, "APQ8096SG" },
+ { 318, "SDM630" },
{ 321, "SDM845" },
{ 341, "SDA845" },
+ { 356, "SM8250" },
};
static const char *socinfo_machine(struct device *dev, unsigned int id)
@@@ -247,7 -228,7 +247,7 @@@ static int qcom_open_##name(struct inod
\
static const struct file_operations qcom_ ##name## _ops = { \
.open = qcom_open_##name, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -275,10 -256,7 +275,10 @@@ static int qcom_show_pmic_model(struct
if (model < 0)
return -EINVAL;
- seq_printf(seq, "%s\n", pmic_models[model]);
+ if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
+ seq_printf(seq, "%s\n", pmic_models[model]);
+ else
+ seq_printf(seq, "unknown (%d)\n", model);
return 0;
}
@@@ -294,19 -272,9 +294,19 @@@ static int qcom_show_pmic_die_revision(
return 0;
}
+static int qcom_show_chip_id(struct seq_file *seq, void *p)
+{
+ struct socinfo *socinfo = seq->private;
+
+ seq_printf(seq, "%s\n", socinfo->chip_id);
+
+ return 0;
+}
+
QCOM_OPEN(build_id, qcom_show_build_id);
QCOM_OPEN(pmic_model, qcom_show_pmic_model);
QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
+QCOM_OPEN(chip_id, qcom_show_chip_id);
#define DEFINE_IMAGE_OPS(type) \
static int show_image_##type(struct seq_file *seq, void *p) \
@@@ -323,7 -291,7 +323,7 @@@ static int open_image_##type(struct ino
\
static const struct file_operations qcom_image_##type##_ops = { \
.open = open_image_##type, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -344,38 -312,7 +344,38 @@@ static void socinfo_debugfs_init(struc
qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
+ debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.fmt);
+
switch (qcom_socinfo->info.fmt) {
+ case SOCINFO_VERSION(0, 15):
+ qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
+
+ debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nmodem_supported);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 14):
+ qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
+ qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
+ qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
+ qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
+
+ debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_clusters);
+ debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ncluster_array_offset);
+ debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_defective_parts);
+ debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ndefective_parts_array_offset);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 13):
+ qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
+
+ debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nproduct_id);
+ DEBUGFS_ADD(info, chip_id);
+ /* Fall through */
case SOCINFO_VERSION(0, 12):
qcom_socinfo->info.chip_family =
__le32_to_cpu(info->chip_family);
diff --combined drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index c52540b734fd,e198779db6fc..a47d32a2166f
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@@ -9,6 -9,22 +9,6 @@@
* <jkmaline(a)cc.hut.fi>
* Copyright (c) 2002-2003, Jouni Malinen <jkmaline(a)cc.hut.fi>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
* Contact Information:
* James P. Ketrenos <ipw2100-admin(a)linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
@@@ -249,7 -265,7 +249,7 @@@ static int open_debug_level(struct inod
static const struct proc_ops debug_level_proc_ops = {
.proc_open = open_debug_level,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = write_debug_level,
.proc_release = single_release,
diff --combined drivers/usb/chipidea/debug.c
index da5d18cf6840,d734b97a7327..31a6fdcb7620
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@@ -18,7 -18,7 +18,7 @@@
#include "bits.h"
#include "otg.h"
-/**
+/*
* ci_device_show: prints information about device capabilities and status
*/
static int ci_device_show(struct seq_file *s, void *data)
@@@ -47,7 -47,7 +47,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_device);
-/**
+/*
* ci_port_test_show: reads port test mode
*/
static int ci_port_test_show(struct seq_file *s, void *data)
@@@ -67,7 -67,7 +67,7 @@@
return 0;
}
-/**
+/*
* ci_port_test_write: writes port test mode
*/
static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
@@@ -110,12 -110,12 +110,12 @@@ static int ci_port_test_open(struct ino
static const struct file_operations ci_port_test_fops = {
.open = ci_port_test_open,
.write = ci_port_test_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
-/**
+/*
* ci_qheads_show: DMA contents of all queue heads
*/
static int ci_qheads_show(struct seq_file *s, void *data)
@@@ -147,7 -147,7 +147,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_qheads);
-/**
+/*
* ci_requests_show: DMA contents of all requests currently queued (all endpts)
*/
static int ci_requests_show(struct seq_file *s, void *data)
@@@ -296,7 -296,7 +296,7 @@@ static int ci_role_open(struct inode *i
static const struct file_operations ci_role_fops = {
.open = ci_role_open,
.write = ci_role_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc2/debugfs.c
index aaafd463d72a,19a083e4f396..5a9586a6432f
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@@ -37,15 -37,15 +37,15 @@@ static ssize_t testmode_write(struct fi
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -78,19 -78,19 +78,19 @@@ static int testmode_show(struct seq_fil
case 0:
seq_puts(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_puts(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_puts(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_puts(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_puts(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_puts(s, "test_force_enable\n");
break;
default:
@@@ -109,7 -109,7 +109,7 @@@ static const struct file_operations tes
.owner = THIS_MODULE,
.open = testmode_open,
.write = testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc3/debugfs.c
index 2c7b6dd79cdf,14c075ad29f9..83e183c90ca7
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@@ -2,7 -2,7 +2,7 @@@
/**
* debugfs.c - DesignWare USB3 DRD Controller DebugFS file
*
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
*
* Authors: Felipe Balbi <balbi(a)ti.com>,
* Sebastian Andrzej Siewior <bigeasy(a)linutronix.de>
@@@ -380,7 -380,7 +380,7 @@@ static ssize_t dwc3_lsp_write(struct fi
static const struct file_operations dwc3_lsp_fops = {
.open = dwc3_lsp_open,
.write = dwc3_lsp_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -445,7 -445,7 +445,7 @@@ static ssize_t dwc3_mode_write(struct f
static const struct file_operations dwc3_mode_fops = {
.open = dwc3_mode_open,
.write = dwc3_mode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -466,19 -466,19 +466,19 @@@ static int dwc3_testmode_show(struct se
case 0:
seq_printf(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_printf(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_printf(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_printf(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_printf(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_printf(s, "test_force_enable\n");
break;
default:
@@@ -506,15 -506,15 +506,15 @@@ static ssize_t dwc3_testmode_write(stru
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -528,7 -528,7 +528,7 @@@
static const struct file_operations dwc3_testmode_fops = {
.open = dwc3_testmode_open,
.write = dwc3_testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -620,7 -620,7 +620,7 @@@ static ssize_t dwc3_link_state_write(st
static const struct file_operations dwc3_link_state_fops = {
.open = dwc3_link_state_open,
.write = dwc3_link_state_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/gadget/udc/lpc32xx_udc.c
index e8a4637a9a17,bac74bb67290..e79f5f286cbb
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@@ -532,7 -532,7 +532,7 @@@ static int proc_udc_open(struct inode *
static const struct file_operations proc_ops = {
.owner = THIS_MODULE,
.open = proc_udc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1926,7 -1926,7 +1926,7 @@@ static const struct usb_ep_ops lpc32xx_
};
/* Send a ZLP on a non-0 IN EP */
-void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
/* Clear EP status */
udc_clearep_getsts(udc, ep->hwep_num);
@@@ -1940,7 -1940,7 +1940,7 @@@
* This function will only be called when a delayed ZLP needs to be sent out
* after a DMA transfer has filled both buffers.
*/
-void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
u32 epstatus;
struct lpc32xx_request *req;
@@@ -2986,7 -2986,7 +2986,7 @@@ static void lpc32xx_rmwkup_chg(int remo
/* Enable or disable USB remote wakeup */
}
-struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
+static struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
.vbus_drv_pol = 0,
.conn_chgb = &lpc32xx_usbd_conn_chg,
.susp_chgb = &lpc32xx_usbd_susp_chg,
diff --combined drivers/usb/host/xhci-debugfs.c
index 92e25a62fdb5,4a640031d944..8b6747b53434
--- a/drivers/usb/host/xhci-debugfs.c
+++ b/drivers/usb/host/xhci-debugfs.c
@@@ -110,7 -110,6 +110,7 @@@ static void xhci_debugfs_free_regset(st
kfree(regset);
}
+__printf(6, 7)
static void xhci_debugfs_regset(struct xhci_hcd *xhci, u32 base,
const struct debugfs_reg32 *regs,
size_t nregs, struct dentry *parent,
@@@ -249,7 -248,7 +249,7 @@@ static int xhci_ring_open(struct inode
static const struct file_operations xhci_ring_fops = {
.open = xhci_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -330,7 -329,7 +330,7 @@@ static int xhci_context_open(struct ino
static const struct file_operations xhci_context_fops = {
.open = xhci_context_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -391,7 -390,7 +391,7 @@@ static ssize_t xhci_port_write(struct f
static const struct file_operations port_fops = {
.open = xhci_port_open,
.write = xhci_port_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined fs/affs/file.c
index a26a0f96c119,7d51cc2e3dab..87d23705135b
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@@ -14,7 -14,6 +14,7 @@@
*/
#include <linux/uio.h>
+#include <linux/blkdev.h>
#include "affs.h"
static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);
@@@ -976,7 -975,6 +976,6 @@@ const struct file_operations affs_file_
.open = affs_file_open,
.release = affs_file_release,
.fsync = affs_file_fsync,
- .splice_read = generic_file_splice_read,
};
const struct inode_operations affs_file_inode_operations = {
diff --combined fs/block_dev.c
index 8ae833e00443,0aa66a6075eb..5b07f2665e41
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@@ -105,7 -105,16 +105,7 @@@ EXPORT_SYMBOL(invalidate_bdev)
static void set_init_blocksize(struct block_device *bdev)
{
- unsigned bsize = bdev_logical_block_size(bdev);
- loff_t size = i_size_read(bdev->bd_inode);
-
- while (bsize < PAGE_SIZE) {
- if (size & bsize)
- break;
- bsize <<= 1;
- }
- bdev->bd_block_size = bsize;
- bdev->bd_inode->i_blkbits = blksize_bits(bsize);
+ bdev->bd_inode->i_blkbits = blksize_bits(bdev_logical_block_size(bdev));
}
int set_blocksize(struct block_device *bdev, int size)
@@@ -119,8 -128,9 +119,8 @@@
return -EINVAL;
/* Don't change the size if it is same as current */
- if (bdev->bd_block_size != size) {
+ if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
- bdev->bd_block_size = size;
bdev->bd_inode->i_blkbits = blksize_bits(size);
kill_bdev(bdev);
}
@@@ -693,12 -703,12 +693,12 @@@ int bdev_read_page(struct block_device
if (!ops->rw_page || bdev_get_integrity(bdev))
return result;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -729,7 -739,7 +729,7 @@@ int bdev_write_page(struct block_devic
if (!ops->rw_page || bdev_get_integrity(bdev))
return -EOPNOTSUPP;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
@@@ -742,7 -752,7 +742,7 @@@
clean_page_buffers(page);
unlock_page(page);
}
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -773,6 -783,7 +773,6 @@@ static void init_once(void *foo
memset(bdev, 0, sizeof(*bdev));
mutex_init(&bdev->bd_mutex);
- INIT_LIST_HEAD(&bdev->bd_list);
#ifdef CONFIG_SYSFS
INIT_LIST_HEAD(&bdev->bd_holder_disks);
#endif
@@@ -788,6 -799,9 +788,6 @@@ static void bdev_evict_inode(struct ino
truncate_inode_pages_final(&inode->i_data);
invalidate_inode_buffers(inode); /* is it needed here? */
clear_inode(inode);
- spin_lock(&bdev_lock);
- list_del_init(&bdev->bd_list);
- spin_unlock(&bdev_lock);
/* Detach inode from wb early as bdi_put() may free bdi->wb */
inode_detach_wb(inode);
if (bdev->bd_bdi != &noop_backing_dev_info) {
@@@ -862,6 -876,8 +862,6 @@@ static int bdev_set(struct inode *inode
return 0;
}
-static LIST_HEAD(all_bdevs);
-
struct block_device *bdget(dev_t dev)
{
struct block_device *bdev;
@@@ -879,6 -895,7 +879,6 @@@
bdev->bd_contains = NULL;
bdev->bd_super = NULL;
bdev->bd_inode = inode;
- bdev->bd_block_size = i_blocksize(inode);
bdev->bd_part_count = 0;
bdev->bd_invalidated = 0;
inode->i_mode = S_IFBLK;
@@@ -886,6 -903,9 +886,6 @@@
inode->i_bdev = bdev;
inode->i_data.a_ops = &def_blk_aops;
mapping_set_gfp_mask(&inode->i_data, GFP_USER);
- spin_lock(&bdev_lock);
- list_add(&bdev->bd_list, &all_bdevs);
- spin_unlock(&bdev_lock);
unlock_new_inode(inode);
}
return bdev;
@@@ -906,14 -926,13 +906,14 @@@ EXPORT_SYMBOL(bdgrab)
long nr_blockdev_pages(void)
{
- struct block_device *bdev;
+ struct inode *inode;
long ret = 0;
- spin_lock(&bdev_lock);
- list_for_each_entry(bdev, &all_bdevs, bd_list) {
- ret += bdev->bd_inode->i_mapping->nrpages;
- }
- spin_unlock(&bdev_lock);
+
+ spin_lock(&blockdev_superblock->s_inode_list_lock);
+ list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list)
+ ret += inode->i_mapping->nrpages;
+ spin_unlock(&blockdev_superblock->s_inode_list_lock);
+
return ret;
}
@@@ -1015,28 -1034,30 +1015,28 @@@ static bool bd_may_claim(struct block_d
}
/**
- * bd_prepare_to_claim - prepare to claim a block device
+ * bd_prepare_to_claim - claim a block device
* @bdev: block device of interest
* @whole: the whole device containing @bdev, may equal @bdev
* @holder: holder trying to claim @bdev
*
- * Prepare to claim @bdev. This function fails if @bdev is already
- * claimed by another holder and waits if another claiming is in
- * progress. This function doesn't actually claim. On successful
- * return, the caller has ownership of bd_claiming and bd_holder[s].
- *
- * CONTEXT:
- * spin_lock(&bdev_lock). Might release bdev_lock, sleep and regrab
- * it multiple times.
+ * Claim @bdev. This function fails if @bdev is already claimed by another
+ * holder and waits if another claiming is in progress. return, the caller
+ * has ownership of bd_claiming and bd_holder[s].
*
* RETURNS:
* 0 if @bdev can be claimed, -EBUSY otherwise.
*/
-static int bd_prepare_to_claim(struct block_device *bdev,
- struct block_device *whole, void *holder)
+int bd_prepare_to_claim(struct block_device *bdev, struct block_device *whole,
+ void *holder)
{
retry:
+ spin_lock(&bdev_lock);
/* if someone else claimed, fail */
- if (!bd_may_claim(bdev, whole, holder))
+ if (!bd_may_claim(bdev, whole, holder)) {
+ spin_unlock(&bdev_lock);
return -EBUSY;
+ }
/* if claiming is already in progress, wait for it to finish */
if (whole->bd_claiming) {
@@@ -1047,15 -1068,13 +1047,15 @@@
spin_unlock(&bdev_lock);
schedule();
finish_wait(wq, &wait);
- spin_lock(&bdev_lock);
goto retry;
}
/* yay, all mine */
+ whole->bd_claiming = holder;
+ spin_unlock(&bdev_lock);
return 0;
}
+EXPORT_SYMBOL_GPL(bd_prepare_to_claim); /* only for the loop driver */
static struct gendisk *bdev_get_gendisk(struct block_device *bdev, int *partno)
{
@@@ -1078,6 -1097,78 +1078,6 @@@
return disk;
}
-/**
- * bd_start_claiming - start claiming a block device
- * @bdev: block device of interest
- * @holder: holder trying to claim @bdev
- *
- * @bdev is about to be opened exclusively. Check @bdev can be opened
- * exclusively and mark that an exclusive open is in progress. Each
- * successful call to this function must be matched with a call to
- * either bd_finish_claiming() or bd_abort_claiming() (which do not
- * fail).
- *
- * This function is used to gain exclusive access to the block device
- * without actually causing other exclusive open attempts to fail. It
- * should be used when the open sequence itself requires exclusive
- * access but may subsequently fail.
- *
- * CONTEXT:
- * Might sleep.
- *
- * RETURNS:
- * Pointer to the block device containing @bdev on success, ERR_PTR()
- * value on failure.
- */
-struct block_device *bd_start_claiming(struct block_device *bdev, void *holder)
-{
- struct gendisk *disk;
- struct block_device *whole;
- int partno, err;
-
- might_sleep();
-
- /*
- * @bdev might not have been initialized properly yet, look up
- * and grab the outer block device the hard way.
- */
- disk = bdev_get_gendisk(bdev, &partno);
- if (!disk)
- return ERR_PTR(-ENXIO);
-
- /*
- * Normally, @bdev should equal what's returned from bdget_disk()
- * if partno is 0; however, some drivers (floppy) use multiple
- * bdev's for the same physical device and @bdev may be one of the
- * aliases. Keep @bdev if partno is 0. This means claimer
- * tracking is broken for those devices but it has always been that
- * way.
- */
- if (partno)
- whole = bdget_disk(disk, 0);
- else
- whole = bdgrab(bdev);
-
- put_disk_and_module(disk);
- if (!whole)
- return ERR_PTR(-ENOMEM);
-
- /* prepare to claim, if successful, mark claiming in progress */
- spin_lock(&bdev_lock);
-
- err = bd_prepare_to_claim(bdev, whole, holder);
- if (err == 0) {
- whole->bd_claiming = holder;
- spin_unlock(&bdev_lock);
- return whole;
- } else {
- spin_unlock(&bdev_lock);
- bdput(whole);
- return ERR_PTR(err);
- }
-}
-EXPORT_SYMBOL(bd_start_claiming);
-
static void bd_clear_claiming(struct block_device *whole, void *holder)
{
lockdep_assert_held(&bdev_lock);
@@@ -1090,14 -1181,14 +1090,14 @@@
/**
* bd_finish_claiming - finish claiming of a block device
* @bdev: block device of interest
- * @whole: whole block device (returned from bd_start_claiming())
+ * @whole: whole block device
* @holder: holder that has claimed @bdev
*
* Finish exclusive open of a block device. Mark the device as exlusively
* open by the holder and wake up all waiters for exclusive open to finish.
*/
-void bd_finish_claiming(struct block_device *bdev, struct block_device *whole,
- void *holder)
+static void bd_finish_claiming(struct block_device *bdev,
+ struct block_device *whole, void *holder)
{
spin_lock(&bdev_lock);
BUG_ON(!bd_may_claim(bdev, whole, holder));
@@@ -1112,11 -1203,12 +1112,11 @@@
bd_clear_claiming(whole, holder);
spin_unlock(&bdev_lock);
}
-EXPORT_SYMBOL(bd_finish_claiming);
/**
* bd_abort_claiming - abort claiming of a block device
* @bdev: block device of interest
- * @whole: whole block device (returned from bd_start_claiming())
+ * @whole: whole block device
* @holder: holder that has claimed @bdev
*
* Abort claiming of a block device when the exclusive open failed. This can be
@@@ -1275,6 -1367,26 +1275,6 @@@ void bd_unlink_disk_holder(struct block
EXPORT_SYMBOL_GPL(bd_unlink_disk_holder);
#endif
-/**
- * flush_disk - invalidates all buffer-cache entries on a disk
- *
- * @bdev: struct block device to be flushed
- * @kill_dirty: flag to guide handling of dirty inodes
- *
- * Invalidates all buffer-cache entries on a disk. It should be called
- * when a disk has been changed -- either by a media change or online
- * resize.
- */
-static void flush_disk(struct block_device *bdev, bool kill_dirty)
-{
- if (__invalidate_device(bdev, kill_dirty)) {
- printk(KERN_WARNING "VFS: busy inodes on changed media or "
- "resized disk %s\n",
- bdev->bd_disk ? bdev->bd_disk->disk_name : "");
- }
- bdev->bd_invalidated = 1;
-}
-
/**
* check_disk_size_change - checks for disk size change and adjusts bdev size.
* @disk: struct gendisk to check
@@@ -1299,9 -1411,8 +1299,9 @@@ static void check_disk_size_change(stru
disk->disk_name, bdev_size, disk_size);
}
i_size_write(bdev->bd_inode, disk_size);
- if (bdev_size > disk_size)
- flush_disk(bdev, false);
+ if (bdev_size > disk_size && __invalidate_device(bdev, false))
+ pr_warn("VFS: busy inodes on resized disk %s\n",
+ disk->disk_name);
}
bdev->bd_invalidated = 0;
}
@@@ -1360,10 -1471,7 +1360,10 @@@ int check_disk_change(struct block_devi
if (!(events & DISK_EVENT_MEDIA_CHANGE))
return 0;
- flush_disk(bdev, true);
+ if (__invalidate_device(bdev, true))
+ pr_warn("VFS: busy inodes on changed media %s\n",
+ disk->disk_name);
+ bdev->bd_invalidated = 1;
if (bdops->revalidate_disk)
bdops->revalidate_disk(bdev->bd_disk);
return 1;
@@@ -1439,15 -1547,13 +1439,15 @@@ EXPORT_SYMBOL_GPL(bdev_disk_changed)
* mutex_lock_nested(whole->bd_mutex, 1)
*/
-static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
+static int __blkdev_get(struct block_device *bdev, fmode_t mode, void *holder,
+ int for_part)
{
+ struct block_device *whole = NULL, *claiming = NULL;
struct gendisk *disk;
int ret;
int partno;
int perm = 0;
- bool first_open = false;
+ bool first_open = false, unblock_events = true, need_restart;
if (mode & FMODE_READ)
perm |= MAY_READ;
@@@ -1463,36 -1569,18 +1463,36 @@@
}
restart:
-
+ need_restart = false;
ret = -ENXIO;
disk = bdev_get_gendisk(bdev, &partno);
if (!disk)
goto out;
+ if (partno) {
+ whole = bdget_disk(disk, 0);
+ if (!whole) {
+ ret = -ENOMEM;
+ goto out_put_disk;
+ }
+ }
+
+ if (!for_part && (mode & FMODE_EXCL)) {
+ WARN_ON_ONCE(!holder);
+ if (whole)
+ claiming = whole;
+ else
+ claiming = bdev;
+ ret = bd_prepare_to_claim(bdev, claiming, holder);
+ if (ret)
+ goto out_put_whole;
+ }
+
disk_block_events(disk);
mutex_lock_nested(&bdev->bd_mutex, for_part);
if (!bdev->bd_openers) {
first_open = true;
bdev->bd_disk = disk;
- bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_partno = partno;
@@@ -1505,12 -1593,20 +1505,12 @@@
ret = 0;
if (disk->fops->open) {
ret = disk->fops->open(bdev, mode);
- if (ret == -ERESTARTSYS) {
- /* Lost a race with 'disk' being
- * deleted, try again.
- * See md.c
- */
- disk_put_part(bdev->bd_part);
- bdev->bd_part = NULL;
- bdev->bd_disk = NULL;
- bdev->bd_queue = NULL;
- mutex_unlock(&bdev->bd_mutex);
- disk_unblock_events(disk);
- put_disk_and_module(disk);
- goto restart;
- }
+ /*
+ * If we lost a race with 'disk' being deleted,
+ * try again. See md.c
+ */
+ if (ret == -ERESTARTSYS)
+ need_restart = true;
}
if (!ret) {
@@@ -1531,11 -1627,18 +1531,11 @@@
if (ret)
goto out_clear;
} else {
- struct block_device *whole;
- whole = bdget_disk(disk, 0);
- ret = -ENOMEM;
- if (!whole)
- goto out_clear;
BUG_ON(for_part);
- ret = __blkdev_get(whole, mode, 1);
- if (ret) {
- bdput(whole);
+ ret = __blkdev_get(whole, mode, NULL, 1);
+ if (ret)
goto out_clear;
- }
- bdev->bd_contains = whole;
+ bdev->bd_contains = bdgrab(whole);
bdev->bd_part = disk_get_part(disk, partno);
if (!(disk->flags & GENHD_FL_UP) ||
!bdev->bd_part || !bdev->bd_part->nr_sects) {
@@@ -1564,52 -1667,27 +1564,52 @@@
bdev->bd_openers++;
if (for_part)
bdev->bd_part_count++;
+ if (claiming)
+ bd_finish_claiming(bdev, claiming, holder);
+
+ /*
+ * Block event polling for write claims if requested. Any write holder
+ * makes the write_holder state stick until all are released. This is
+ * good enough and tracking individual writeable reference is too
+ * fragile given the way @mode is used in blkdev_get/put().
+ */
+ if (claiming && (mode & FMODE_WRITE) && !bdev->bd_write_holder &&
+ (disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
+ bdev->bd_write_holder = true;
+ unblock_events = false;
+ }
mutex_unlock(&bdev->bd_mutex);
- disk_unblock_events(disk);
+
+ if (unblock_events)
+ disk_unblock_events(disk);
+
/* only one opener holds refs to the module and disk */
if (!first_open)
put_disk_and_module(disk);
+ if (whole)
+ bdput(whole);
return 0;
out_clear:
disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
- bdev->bd_queue = NULL;
if (bdev != bdev->bd_contains)
__blkdev_put(bdev->bd_contains, mode, 1);
bdev->bd_contains = NULL;
out_unlock_bdev:
+ if (claiming)
+ bd_abort_claiming(bdev, claiming, holder);
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
+ out_put_whole:
+ if (whole)
+ bdput(whole);
+ out_put_disk:
put_disk_and_module(disk);
+ if (need_restart)
+ goto restart;
out:
-
return ret;
}
@@@ -1634,11 -1712,50 +1634,11 @@@
*/
int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder)
{
- struct block_device *whole = NULL;
int res;
- WARN_ON_ONCE((mode & FMODE_EXCL) && !holder);
-
- if ((mode & FMODE_EXCL) && holder) {
- whole = bd_start_claiming(bdev, holder);
- if (IS_ERR(whole)) {
- bdput(bdev);
- return PTR_ERR(whole);
- }
- }
-
- res = __blkdev_get(bdev, mode, 0);
-
- if (whole) {
- struct gendisk *disk = whole->bd_disk;
-
- /* finish claiming */
- mutex_lock(&bdev->bd_mutex);
- if (!res)
- bd_finish_claiming(bdev, whole, holder);
- else
- bd_abort_claiming(bdev, whole, holder);
- /*
- * Block event polling for write claims if requested. Any
- * write holder makes the write_holder state stick until
- * all are released. This is good enough and tracking
- * individual writeable reference is too fragile given the
- * way @mode is used in blkdev_get/put().
- */
- if (!res && (mode & FMODE_WRITE) && !bdev->bd_write_holder &&
- (disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
- bdev->bd_write_holder = true;
- disk_block_events(disk);
- }
-
- mutex_unlock(&bdev->bd_mutex);
- bdput(whole);
- }
-
+ res =__blkdev_get(bdev, mode, holder, 0);
if (res)
bdput(bdev);
-
return res;
}
EXPORT_SYMBOL(blkdev_get);
@@@ -1734,7 -1851,7 +1734,7 @@@ static int blkdev_open(struct inode * i
*/
filp->f_flags |= O_LARGEFILE;
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
if (filp->f_flags & O_NDELAY)
filp->f_mode |= FMODE_NDELAY;
@@@ -2043,7 -2160,6 +2043,6 @@@ const struct file_operations def_blk_fo
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_blkdev_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = blkdev_fallocate,
};
diff --combined fs/btrfs/file.c
index e050bd96e6c6,f3c81478b04e..b4ec68cc8ea1
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@@ -500,18 -500,18 +500,18 @@@ next
* this also makes the decision about creating an inline extent vs
* doing real data extents, marking pages dirty and delalloc as required.
*/
-int btrfs_dirty_pages(struct inode *inode, struct page **pages,
+int btrfs_dirty_pages(struct btrfs_inode *inode, struct page **pages,
size_t num_pages, loff_t pos, size_t write_bytes,
struct extent_state **cached)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_fs_info *fs_info = inode->root->fs_info;
int err = 0;
int i;
u64 num_bytes;
u64 start_pos;
u64 end_of_last_block;
u64 end_pos = pos + write_bytes;
- loff_t isize = i_size_read(inode);
+ loff_t isize = i_size_read(&inode->vfs_inode);
unsigned int extra_bits = 0;
start_pos = pos & ~((u64) fs_info->sectorsize - 1);
@@@ -524,13 -524,13 +524,13 @@@
* The pages may have already been dirty, clear out old accounting so
* we can set things up properly
*/
- clear_extent_bit(&BTRFS_I(inode)->io_tree, start_pos, end_of_last_block,
+ clear_extent_bit(&inode->io_tree, start_pos, end_of_last_block,
EXTENT_DELALLOC | EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG,
0, 0, cached);
- if (!btrfs_is_free_space_inode(BTRFS_I(inode))) {
+ if (!btrfs_is_free_space_inode(inode)) {
if (start_pos >= isize &&
- !(BTRFS_I(inode)->flags & BTRFS_INODE_PREALLOC)) {
+ !(inode->flags & BTRFS_INODE_PREALLOC)) {
/*
* There can't be any extents following eof in this case
* so just set the delalloc new bit for the range
@@@ -538,7 -538,8 +538,7 @@@
*/
extra_bits |= EXTENT_DELALLOC_NEW;
} else {
- err = btrfs_find_new_delalloc_bytes(BTRFS_I(inode),
- start_pos,
+ err = btrfs_find_new_delalloc_bytes(inode, start_pos,
num_bytes, cached);
if (err)
return err;
@@@ -563,7 -564,7 +563,7 @@@
* at this time.
*/
if (end_pos > isize)
- i_size_write(inode, end_pos);
+ i_size_write(&inode->vfs_inode, end_pos);
return 0;
}
@@@ -730,7 -731,7 +730,7 @@@ next
* is deleted from the tree.
*/
int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
+ struct btrfs_root *root, struct btrfs_inode *inode,
struct btrfs_path *path, u64 start, u64 end,
u64 *drop_end, int drop_cache,
int replace_extent,
@@@ -743,8 -744,7 +743,8 @@@
struct btrfs_ref ref = { 0 };
struct btrfs_key key;
struct btrfs_key new_key;
- u64 ino = btrfs_ino(BTRFS_I(inode));
+ struct inode *vfs_inode = &inode->vfs_inode;
+ u64 ino = btrfs_ino(inode);
u64 search_start = start;
u64 disk_bytenr = 0;
u64 num_bytes = 0;
@@@ -762,9 -762,9 +762,9 @@@
int leafs_visited = 0;
if (drop_cache)
- btrfs_drop_extent_cache(BTRFS_I(inode), start, end - 1, 0);
+ btrfs_drop_extent_cache(inode, start, end - 1, 0);
- if (start >= BTRFS_I(inode)->disk_i_size && !replace_extent)
+ if (start >= inode->disk_i_size && !replace_extent)
modify_tree = 0;
update_refs = (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) ||
@@@ -935,7 -935,7 +935,7 @@@ next_slot
extent_end - end);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, end - key.offset);
+ inode_sub_bytes(vfs_inode, end - key.offset);
break;
}
@@@ -955,7 -955,7 +955,7 @@@
start - key.offset);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, extent_end - start);
+ inode_sub_bytes(vfs_inode, extent_end - start);
if (end == extent_end)
break;
@@@ -979,7 -979,7 +979,7 @@@ delete_extent_item
if (update_refs &&
extent_type == BTRFS_FILE_EXTENT_INLINE) {
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
extent_end = ALIGN(extent_end,
fs_info->sectorsize);
@@@ -993,7 -993,7 +993,7 @@@
key.offset - extent_offset);
ret = btrfs_free_extent(trans, &ref);
BUG_ON(ret); /* -ENOMEM */
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
}
@@@ -1082,8 -1082,8 +1082,8 @@@ int btrfs_drop_extents(struct btrfs_tra
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- ret = __btrfs_drop_extents(trans, root, inode, path, start, end, NULL,
- drop_cache, 0, 0, NULL);
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path, start,
+ end, NULL, drop_cache, 0, 0, NULL);
btrfs_free_path(path);
return ret;
}
@@@ -1532,8 -1532,8 +1532,8 @@@ lock_and_cleanup_extent_if_need(struct
return ret;
}
-static noinline int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
- size_t *write_bytes, bool nowait)
+static int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes, bool nowait)
{
struct btrfs_fs_info *fs_info = inode->root->fs_info;
struct btrfs_root *root = inode->root;
@@@ -1541,9 -1541,6 +1541,9 @@@
u64 num_bytes;
int ret;
+ if (!(inode->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC)))
+ return 0;
+
if (!nowait && !btrfs_drew_try_write_lock(&root->snapshot_lock))
return -EAGAIN;
@@@ -1586,42 -1583,6 +1586,42 @@@ out_unlock
return ret;
}
+static int check_nocow_nolock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, true);
+}
+
+/*
+ * Check if we can do nocow write into the range [@pos, @pos + @write_bytes)
+ *
+ * @pos: File offset
+ * @write_bytes: The length to write, will be updated to the nocow writeable
+ * range
+ *
+ * This function will flush ordered extents in the range to ensure proper
+ * nocow checks.
+ *
+ * Return:
+ * >0 and update @write_bytes if we can do nocow write
+ * 0 if we can't do nocow write
+ * -EAGAIN if we can't get the needed lock or there are ordered extents
+ * for * (nowait == true) case
+ * <0 if other error happened
+ *
+ * NOTE: Callers need to release the lock by btrfs_check_nocow_unlock().
+ */
+int btrfs_check_nocow_lock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, false);
+}
+
+void btrfs_check_nocow_unlock(struct btrfs_inode *inode)
+{
+ btrfs_drew_write_unlock(&inode->root->snapshot_lock);
+}
+
static noinline ssize_t btrfs_buffered_write(struct kiocb *iocb,
struct iov_iter *i)
{
@@@ -1629,6 -1590,7 +1629,6 @@@
loff_t pos = iocb->ki_pos;
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct page **pages = NULL;
struct extent_changeset *data_reserved = NULL;
u64 release_bytes = 0;
@@@ -1681,12 -1643,13 +1681,12 @@@
fs_info->sectorsize);
extent_changeset_release(data_reserved);
- ret = btrfs_check_data_free_space(inode, &data_reserved, pos,
+ ret = btrfs_check_data_free_space(BTRFS_I(inode),
+ &data_reserved, pos,
write_bytes);
if (ret < 0) {
- if ((BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) &&
- check_can_nocow(BTRFS_I(inode), pos,
- &write_bytes, false) > 0) {
+ if (btrfs_check_nocow_lock(BTRFS_I(inode), pos,
+ &write_bytes) > 0) {
/*
* For nodata cow case, no need to reserve
* data space.
@@@ -1711,11 -1674,11 +1711,11 @@@
reserve_bytes);
if (ret) {
if (!only_release_metadata)
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, pos,
write_bytes);
else
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
break;
}
@@@ -1785,7 -1748,7 +1785,7 @@@ again
__pos = round_down(pos,
fs_info->sectorsize) +
(dirty_pages << PAGE_SHIFT);
- btrfs_delalloc_release_space(inode,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
data_reserved, __pos,
release_bytes, true);
}
@@@ -1795,9 -1758,8 +1795,9 @@@
fs_info->sectorsize);
if (copied > 0)
- ret = btrfs_dirty_pages(inode, pages, dirty_pages,
- pos, copied, &cached_state);
+ ret = btrfs_dirty_pages(BTRFS_I(inode), pages,
+ dirty_pages, pos, copied,
+ &cached_state);
/*
* If we have not locked the extent range, because the range's
@@@ -1820,7 -1782,7 +1820,7 @@@
release_bytes = 0;
if (only_release_metadata)
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
if (only_release_metadata && copied > 0) {
lockstart = round_down(pos,
@@@ -1838,6 -1800,8 +1838,6 @@@
cond_resched();
balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1)
- btrfs_btree_balance_dirty(fs_info);
pos += copied;
num_written += copied;
@@@ -1847,12 -1811,11 +1847,12 @@@
if (release_bytes) {
if (only_release_metadata) {
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
btrfs_delalloc_release_metadata(BTRFS_I(inode),
release_bytes, true);
} else {
- btrfs_delalloc_release_space(inode, data_reserved,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
+ data_reserved,
round_down(pos, fs_info->sectorsize),
release_bytes, true);
}
@@@ -1872,7 -1835,7 +1872,7 @@@ static ssize_t __btrfs_direct_write(str
loff_t endbyte;
int err;
- written = generic_file_direct_write(iocb, from);
+ written = btrfs_direct_IO(iocb, from);
if (written < 0 || !iov_iter_count(from))
return written;
@@@ -1963,8 -1926,10 +1963,8 @@@ static ssize_t btrfs_file_write_iter(st
* We will allocate space in case nodatacow is not set,
* so bail
*/
- if (!(BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) ||
- check_can_nocow(BTRFS_I(inode), pos, &nocow_bytes,
- true) <= 0) {
+ if (check_nocow_nolock(BTRFS_I(inode), pos, &nocow_bytes)
+ <= 0) {
inode_unlock(inode);
return -EAGAIN;
}
@@@ -2633,7 -2598,7 +2633,7 @@@ int btrfs_punch_hole_range(struct inod
cur_offset = start;
while (cur_offset < end) {
- ret = __btrfs_drop_extents(trans, root, inode, path,
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path,
cur_offset, end + 1, &drop_end,
1, 0, 0, NULL);
if (ret != -ENOSPC) {
@@@ -3211,14 -3176,14 +3211,14 @@@ reserve_space
if (ret < 0)
goto out;
space_reserved = true;
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- alloc_start, bytes_to_reserve);
- if (ret)
- goto out;
ret = btrfs_punch_hole_lock_range(inode, lockstart, lockend,
&cached_state);
if (ret)
goto out;
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), &data_reserved,
+ alloc_start, bytes_to_reserve);
+ if (ret)
+ goto out;
ret = btrfs_prealloc_file_range(inode, mode, alloc_start,
alloc_end - alloc_start,
i_blocksize(inode),
@@@ -3234,7 -3199,7 +3234,7 @@@
ret = btrfs_fallocate_update_isize(inode, offset + len, mode);
out:
if (ret && space_reserved)
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
alloc_start, bytes_to_reserve);
extent_changeset_free(data_reserved);
@@@ -3385,9 -3350,8 +3385,9 @@@ static long btrfs_fallocate(struct fil
free_extent_map(em);
break;
}
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- cur_offset, last_byte - cur_offset);
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode),
+ &data_reserved, cur_offset,
+ last_byte - cur_offset);
if (ret < 0) {
cur_offset = last_byte;
free_extent_map(em);
@@@ -3399,9 -3363,8 +3399,9 @@@
* range, free reserved data space first, otherwise
* it'll result in false ENOSPC error.
*/
- btrfs_free_reserved_data_space(inode, data_reserved,
- cur_offset, last_byte - cur_offset);
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
+ data_reserved, cur_offset,
+ last_byte - cur_offset);
}
free_extent_map(em);
cur_offset = last_byte;
@@@ -3418,7 -3381,7 +3418,7 @@@
range->len, i_blocksize(inode),
offset + len, &alloc_hint);
else
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, range->start,
range->len);
list_del(&range->list);
@@@ -3439,7 -3402,7 +3439,7 @@@ out
inode_unlock(inode);
/* Let go of our reservation. */
if (ret != 0 && !(mode & FALLOC_FL_ZERO_RANGE))
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
cur_offset, alloc_end - cur_offset);
extent_changeset_free(data_reserved);
return ret;
@@@ -3537,31 -3500,13 +3537,30 @@@ static loff_t btrfs_file_llseek(struct
static int btrfs_file_open(struct inode *inode, struct file *filp)
{
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return generic_file_open(inode, filp);
}
+static ssize_t btrfs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
+{
+ ssize_t ret = 0;
+
+ if (iocb->ki_flags & IOCB_DIRECT) {
+ struct inode *inode = file_inode(iocb->ki_filp);
+
+ inode_lock_shared(inode);
+ ret = btrfs_direct_IO(iocb, to);
+ inode_unlock_shared(inode);
+ if (ret < 0)
+ return ret;
+ }
+
+ return generic_file_buffered_read(iocb, to, ret);
+}
+
const struct file_operations btrfs_file_operations = {
.llseek = btrfs_file_llseek,
- .read_iter = generic_file_read_iter,
+ .read_iter = btrfs_file_read_iter,
- .splice_read = generic_file_splice_read,
.write_iter = btrfs_file_write_iter,
.splice_write = iter_file_splice_write,
.mmap = btrfs_file_mmap,
diff --combined fs/debugfs/file.c
index b167d2d02148,dcd7bdaf6741..e2e07eec50f1
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@@ -231,6 -231,10 +231,10 @@@ FULL_PROXY_FUNC(read, ssize_t, filp
loff_t *ppos),
ARGS(filp, buf, size, ppos));
+ FULL_PROXY_FUNC(read_iter, ssize_t, iocb->ki_filp,
+ PROTO(struct kiocb *iocb, struct iov_iter *iter),
+ ARGS(iocb, iter));
+
FULL_PROXY_FUNC(write, ssize_t, filp,
PROTO(struct file *filp, const char __user *buf, size_t size,
loff_t *ppos),
@@@ -273,7 -277,7 +277,7 @@@ static int full_proxy_release(struct in
r = real_fops->release(inode, filp);
replace_fops(filp, d_inode(dentry)->i_fop);
- kfree((void *)proxy_fops);
+ kfree(proxy_fops);
fops_put(real_fops);
return r;
}
@@@ -286,6 -290,8 +290,8 @@@ static void __full_proxy_fops_init(stru
proxy_fops->llseek = full_proxy_llseek;
if (real_fops->read)
proxy_fops->read = full_proxy_read;
+ if (real_fops->read_iter)
+ proxy_fops->read_iter = full_proxy_read_iter;
if (real_fops->write)
proxy_fops->write = full_proxy_write;
if (real_fops->poll)
@@@ -918,6 -924,11 +924,6 @@@ struct dentry *debugfs_create_blob(cons
}
EXPORT_SYMBOL_GPL(debugfs_create_blob);
-struct array_data {
- void *array;
- u32 elements;
-};
-
static size_t u32_format_array(char *buf, size_t bufsize,
u32 *array, int array_size)
{
@@@ -938,8 -949,8 +944,8 @@@
static int u32_array_open(struct inode *inode, struct file *file)
{
- struct array_data *data = inode->i_private;
- int size, elements = data->elements;
+ struct debugfs_u32_array *data = inode->i_private;
+ int size, elements = data->n_elements;
char *buf;
/*
@@@ -954,7 -965,7 +960,7 @@@
buf[size] = 0;
file->private_data = buf;
- u32_format_array(buf, size, data->array, data->elements);
+ u32_format_array(buf, size, data->array, data->n_elements);
return nonseekable_open(inode, file);
}
@@@ -991,7 -1002,8 +997,7 @@@ static const struct file_operations u32
* @parent: a pointer to the parent dentry for this file. This should be a
* directory dentry if set. If this parameter is %NULL, then the
* file will be created in the root of the debugfs filesystem.
- * @array: u32 array that provides data.
- * @elements: total number of elements in the array.
+ * @array: wrapper struct containing data pointer and size of the array.
*
* This function creates a file in debugfs with the given name that exports
* @array as data. If the @mode variable is so set it can be read from.
@@@ -999,10 -1011,17 +1005,10 @@@
* Once array is created its size can not be changed.
*/
void debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent, u32 *array, u32 elements)
+ struct dentry *parent,
+ struct debugfs_u32_array *array)
{
- struct array_data *data = kmalloc(sizeof(*data), GFP_KERNEL);
-
- if (data == NULL)
- return;
-
- data->array = array;
- data->elements = elements;
-
- debugfs_create_file_unsafe(name, mode, parent, data, &u32_array_fops);
+ debugfs_create_file_unsafe(name, mode, parent, array, &u32_array_fops);
}
EXPORT_SYMBOL_GPL(debugfs_create_u32_array);
@@@ -1067,7 -1086,7 +1073,7 @@@ static int debugfs_open_regset32(struc
static const struct file_operations fops_regset32 = {
.open = debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1113,7 -1132,7 +1119,7 @@@ static const struct file_operations deb
.owner = THIS_MODULE,
.open = debugfs_devm_entry_open,
.release = single_release,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek
};
diff --combined fs/exfat/file.c
index 6bdabfd4b134,8fe5df8a9ccb..f71b599f9bfe
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@@ -154,7 -154,6 +154,7 @@@ int __exfat_truncate(struct inode *inod
struct timespec64 ts;
struct exfat_dentry *ep, *ep2;
struct exfat_entry_set_cache *es;
+ int err;
es = exfat_get_dentry_set(sb, &(ei->dir), ei->entry,
ES_ALL_ENTRIES);
@@@ -177,7 -176,7 +177,7 @@@
ep2->dentry.stream.size = 0;
} else {
ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
- ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+ ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
}
if (new_size == 0) {
@@@ -189,9 -188,7 +189,9 @@@
}
exfat_update_dir_chksum_with_entry_set(es);
- exfat_free_dentry_set(es, inode_needs_sync(inode));
+ err = exfat_free_dentry_set(es, inode_needs_sync(inode));
+ if (err)
+ return err;
}
/* cut off from the FAT chain */
@@@ -372,7 -369,6 +372,6 @@@ const struct file_operations exfat_file
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = exfat_file_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/ext4/file.c
index 8f6324eb6b27,f5dc9a4e0937..cdfc8c6919c5
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@@ -53,7 -53,6 +53,7 @@@ static ssize_t ext4_dio_read_iter(struc
{
ssize_t ret;
struct inode *inode = file_inode(iocb->ki_filp);
+ unsigned int flags = 0;
if (iocb->ki_flags & IOCB_NOWAIT) {
if (!inode_trylock_shared(inode))
@@@ -75,11 -74,8 +75,11 @@@
return generic_file_read_iter(iocb, to);
}
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, to, &ext4_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ flags);
inode_unlock_shared(inode);
file_accessed(iocb->ki_filp);
@@@ -461,7 -457,6 +461,7 @@@ static ssize_t ext4_dio_write_iter(stru
const struct iomap_ops *iomap_ops = &ext4_iomap_ops;
bool extend = false, unaligned_io = false;
bool ilock_shared = true;
+ unsigned int flags = 0;
/*
* We initially start with shared inode lock unless it is
@@@ -545,12 -540,10 +545,12 @@@
ext4_journal_stop(handle);
}
+ if (is_sync_kiocb(iocb) || unaligned_io || extend)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
if (ilock_shared)
iomap_ops = &ext4_iomap_overwrite_ops;
ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io || extend);
+ flags);
if (extend)
ret = ext4_handle_inode_extension(inode, offset, ret, count);
@@@ -903,7 -896,6 +903,6 @@@ const struct file_operations ext4_file_
.release = ext4_release_file,
.fsync = ext4_sync_file,
.get_unmapped_area = thp_get_unmapped_area,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = ext4_fallocate,
};
diff --combined fs/f2fs/file.c
index 521987cd8772,6b34caf13b56..5719577f68ae
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@@ -105,11 -105,11 +105,11 @@@ static vm_fault_t f2fs_vm_page_mkwrite(
if (need_alloc) {
/* block allocation */
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = f2fs_get_block(&dn, page->index);
f2fs_put_dnode(&dn);
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
@@@ -1373,6 -1373,8 +1373,6 @@@ static int f2fs_collapse_range(struct i
truncate_pagecache(inode, offset);
new_size = i_size_read(inode) - len;
- truncate_pagecache(inode, new_size);
-
ret = f2fs_truncate_blocks(inode, new_size, true);
up_write(&F2FS_I(inode)->i_mmap_sem);
if (!ret)
@@@ -1658,7 -1660,7 +1658,7 @@@ next_alloc
map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f2fs_lock_op(sbi);
- f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+ f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA);
f2fs_unlock_op(sbi);
err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
@@@ -2525,11 -2527,6 +2525,11 @@@ do_more
}
ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
+ if (ret) {
+ if (ret == -EBUSY)
+ ret = -EAGAIN;
+ goto out;
+ }
range.start += BLKS_PER_SEC(sbi);
if (range.start <= end)
goto do_more;
@@@ -3362,7 -3359,7 +3362,7 @@@ static int f2fs_ioc_measure_verity(stru
return fsverity_ioctl_measure(filp, (void __user *)arg);
}
-static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@@ -3388,7 -3385,7 +3388,7 @@@
return err;
}
-static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@@ -3767,11 -3764,11 +3767,11 @@@ long f2fs_ioctl(struct file *filp, unsi
return -ENOSPC;
switch (cmd) {
- case F2FS_IOC_GETFLAGS:
+ case FS_IOC_GETFLAGS:
return f2fs_ioc_getflags(filp, arg);
- case F2FS_IOC_SETFLAGS:
+ case FS_IOC_SETFLAGS:
return f2fs_ioc_setflags(filp, arg);
- case F2FS_IOC_GETVERSION:
+ case FS_IOC_GETVERSION:
return f2fs_ioc_getversion(filp, arg);
case F2FS_IOC_START_ATOMIC_WRITE:
return f2fs_ioc_start_atomic_write(filp);
@@@ -3787,11 -3784,11 +3787,11 @@@
return f2fs_ioc_shutdown(filp, arg);
case FITRIM:
return f2fs_ioc_fitrim(filp, arg);
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
return f2fs_ioc_set_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
return f2fs_ioc_get_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
return f2fs_ioc_get_encryption_policy_ex(filp, arg);
@@@ -3819,9 -3816,9 +3819,9 @@@
return f2fs_ioc_flush_device(filp, arg);
case F2FS_IOC_GET_FEATURES:
return f2fs_ioc_get_features(filp, arg);
- case F2FS_IOC_FSGETXATTR:
+ case FS_IOC_FSGETXATTR:
return f2fs_ioc_fsgetxattr(filp, arg);
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSSETXATTR:
return f2fs_ioc_fssetxattr(filp, arg);
case F2FS_IOC_GET_PIN_FILE:
return f2fs_ioc_get_pin_file(filp, arg);
@@@ -3835,10 -3832,10 +3835,10 @@@
return f2fs_ioc_enable_verity(filp, arg);
case FS_IOC_MEASURE_VERITY:
return f2fs_ioc_measure_verity(filp, arg);
- case F2FS_IOC_GET_VOLUME_NAME:
- return f2fs_get_volume_name(filp, arg);
- case F2FS_IOC_SET_VOLUME_NAME:
- return f2fs_set_volume_name(filp, arg);
+ case FS_IOC_GETFSLABEL:
+ return f2fs_ioc_getfslabel(filp, arg);
+ case FS_IOC_SETFSLABEL:
+ return f2fs_ioc_setfslabel(filp, arg);
case F2FS_IOC_GET_COMPRESS_BLOCKS:
return f2fs_get_compress_blocks(filp, arg);
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
@@@ -3969,14 -3966,14 +3969,14 @@@ out
long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
- case F2FS_IOC32_GETFLAGS:
- cmd = F2FS_IOC_GETFLAGS;
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
break;
- case F2FS_IOC32_SETFLAGS:
- cmd = F2FS_IOC_SETFLAGS;
+ case FS_IOC32_SETFLAGS:
+ cmd = FS_IOC_SETFLAGS;
break;
- case F2FS_IOC32_GETVERSION:
- cmd = F2FS_IOC_GETVERSION;
+ case FS_IOC32_GETVERSION:
+ cmd = FS_IOC_GETVERSION;
break;
case F2FS_IOC_START_ATOMIC_WRITE:
case F2FS_IOC_COMMIT_ATOMIC_WRITE:
@@@ -3985,9 -3982,9 +3985,9 @@@
case F2FS_IOC_ABORT_VOLATILE_WRITE:
case F2FS_IOC_SHUTDOWN:
case FITRIM:
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
case FS_IOC_ADD_ENCRYPTION_KEY:
case FS_IOC_REMOVE_ENCRYPTION_KEY:
@@@ -4001,16 -3998,16 +4001,16 @@@
case F2FS_IOC_MOVE_RANGE:
case F2FS_IOC_FLUSH_DEVICE:
case F2FS_IOC_GET_FEATURES:
- case F2FS_IOC_FSGETXATTR:
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSGETXATTR:
+ case FS_IOC_FSSETXATTR:
case F2FS_IOC_GET_PIN_FILE:
case F2FS_IOC_SET_PIN_FILE:
case F2FS_IOC_PRECACHE_EXTENTS:
case F2FS_IOC_RESIZE_FS:
case FS_IOC_ENABLE_VERITY:
case FS_IOC_MEASURE_VERITY:
- case F2FS_IOC_GET_VOLUME_NAME:
- case F2FS_IOC_SET_VOLUME_NAME:
+ case FS_IOC_GETFSLABEL:
+ case FS_IOC_SETFSLABEL:
case F2FS_IOC_GET_COMPRESS_BLOCKS:
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
@@@ -4036,6 -4033,5 +4036,5 @@@ const struct file_operations f2fs_file_
#ifdef CONFIG_COMPAT
.compat_ioctl = f2fs_compat_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/fuse/file.c
index 6611ef3269a8,a404e147bb2c..e727562b9461
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@@ -18,7 -18,6 +18,7 @@@
#include <linux/swap.h>
#include <linux/falloc.h>
#include <linux/uio.h>
+#include <linux/fs.h>
static struct page **fuse_pages_alloc(unsigned int npages, gfp_t flags,
struct fuse_page_desc **desc)
@@@ -1587,6 -1586,7 +1587,6 @@@ static void fuse_writepage_finish(struc
struct backing_dev_info *bdi = inode_to_bdi(inode);
int i;
- rb_erase(&wpa->writepages_entry, &fi->writepages);
for (i = 0; i < ap->num_pages; i++) {
dec_wb_stat(&bdi->wb, WB_WRITEBACK);
dec_node_page_state(ap->pages[i], NR_WRITEBACK_TEMP);
@@@ -1637,7 -1637,6 +1637,7 @@@ __acquires(fi->lock
out_free:
fi->writectr--;
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
fuse_writepage_finish(fc, wpa);
spin_unlock(&fi->lock);
@@@ -1675,8 -1674,7 +1675,8 @@@ __acquires(fi->lock
}
}
-static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+static struct fuse_writepage_args *fuse_insert_writeback(struct rb_root *root,
+ struct fuse_writepage_args *wpa)
{
pgoff_t idx_from = wpa->ia.write.in.offset >> PAGE_SHIFT;
pgoff_t idx_to = idx_from + wpa->ia.ap.num_pages - 1;
@@@ -1699,17 -1697,11 +1699,17 @@@
else if (idx_to < curr_index)
p = &(*p)->rb_left;
else
- return (void) WARN_ON(true);
+ return curr;
}
rb_link_node(&wpa->writepages_entry, parent, p);
rb_insert_color(&wpa->writepages_entry, root);
+ return NULL;
+}
+
+static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+{
+ WARN_ON(fuse_insert_writeback(root, wpa));
}
static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_args *args,
@@@ -1722,7 -1714,6 +1722,7 @@@
mapping_set_error(inode->i_mapping, error);
spin_lock(&fi->lock);
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
while (wpa->next) {
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_write_in *inarg = &wpa->ia.write.in;
@@@ -1961,14 -1952,14 +1961,14 @@@ static void fuse_writepages_send(struc
}
/*
- * First recheck under fi->lock if the offending offset is still under
- * writeback. If yes, then iterate auxiliary write requests, to see if there's
+ * Check under fi->lock if the page is under writeback, and insert it onto the
+ * rb_tree if not. Otherwise iterate auxiliary write requests, to see if there's
* one already added for a page at this offset. If there's none, then insert
* this new request onto the auxiliary list, otherwise reuse the existing one by
- * copying the new page contents over to the old temporary page.
+ * swapping the new temp page with the old one.
*/
-static bool fuse_writepage_in_flight(struct fuse_writepage_args *new_wpa,
- struct page *page)
+static bool fuse_writepage_add(struct fuse_writepage_args *new_wpa,
+ struct page *page)
{
struct fuse_inode *fi = get_fuse_inode(new_wpa->inode);
struct fuse_writepage_args *tmp;
@@@ -1976,15 -1967,17 +1976,15 @@@
struct fuse_args_pages *new_ap = &new_wpa->ia.ap;
WARN_ON(new_ap->num_pages != 0);
+ new_ap->num_pages = 1;
spin_lock(&fi->lock);
- rb_erase(&new_wpa->writepages_entry, &fi->writepages);
- old_wpa = fuse_find_writeback(fi, page->index, page->index);
+ old_wpa = fuse_insert_writeback(&fi->writepages, new_wpa);
if (!old_wpa) {
- tree_insert(&fi->writepages, new_wpa);
spin_unlock(&fi->lock);
- return false;
+ return true;
}
- new_ap->num_pages = 1;
for (tmp = old_wpa->next; tmp; tmp = tmp->next) {
pgoff_t curr_index;
@@@ -2013,41 -2006,7 +2013,41 @@@
fuse_writepage_free(new_wpa);
}
- return true;
+ return false;
+}
+
+static bool fuse_writepage_need_send(struct fuse_conn *fc, struct page *page,
+ struct fuse_args_pages *ap,
+ struct fuse_fill_wb_data *data)
+{
+ WARN_ON(!ap->num_pages);
+
+ /*
+ * Being under writeback is unlikely but possible. For example direct
+ * read to an mmaped fuse file will set the page dirty twice; once when
+ * the pages are faulted with get_user_pages(), and then after the read
+ * completed.
+ */
+ if (fuse_page_is_writeback(data->inode, page->index))
+ return true;
+
+ /* Reached max pages */
+ if (ap->num_pages == fc->max_pages)
+ return true;
+
+ /* Reached max write bytes */
+ if ((ap->num_pages + 1) * PAGE_SIZE > fc->max_write)
+ return true;
+
+ /* Discontinuity */
+ if (data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)
+ return true;
+
+ /* Need to grow the pages array? If so, did the expansion fail? */
+ if (ap->num_pages == data->max_pages && !fuse_pages_realloc(data))
+ return true;
+
+ return false;
}
static int fuse_writepages_fill(struct page *page,
@@@ -2060,6 -2019,7 +2060,6 @@@
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_conn *fc = get_fuse_conn(inode);
struct page *tmp_page;
- bool is_writeback;
int err;
if (!data->ff) {
@@@ -2069,9 -2029,25 +2069,9 @@@
goto out_unlock;
}
- /*
- * Being under writeback is unlikely but possible. For example direct
- * read to an mmaped fuse file will set the page dirty twice; once when
- * the pages are faulted with get_user_pages(), and then after the read
- * completed.
- */
- is_writeback = fuse_page_is_writeback(inode, page->index);
-
- if (wpa && ap->num_pages &&
- (is_writeback || ap->num_pages == fc->max_pages ||
- (ap->num_pages + 1) * PAGE_SIZE > fc->max_write ||
- data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)) {
+ if (wpa && fuse_writepage_need_send(fc, page, ap, data)) {
fuse_writepages_send(data);
data->wpa = NULL;
- } else if (wpa && ap->num_pages == data->max_pages) {
- if (!fuse_pages_realloc(data)) {
- fuse_writepages_send(data);
- data->wpa = NULL;
- }
}
err = -ENOMEM;
@@@ -2109,6 -2085,12 +2109,6 @@@
ap->args.end = fuse_writepage_end;
ap->num_pages = 0;
wpa->inode = inode;
-
- spin_lock(&fi->lock);
- tree_insert(&fi->writepages, wpa);
- spin_unlock(&fi->lock);
-
- data->wpa = wpa;
}
set_page_writeback(page);
@@@ -2116,25 -2098,26 +2116,25 @@@
ap->pages[ap->num_pages] = tmp_page;
ap->descs[ap->num_pages].offset = 0;
ap->descs[ap->num_pages].length = PAGE_SIZE;
+ data->orig_pages[ap->num_pages] = page;
inc_wb_stat(&inode_to_bdi(inode)->wb, WB_WRITEBACK);
inc_node_page_state(tmp_page, NR_WRITEBACK_TEMP);
err = 0;
- if (is_writeback && fuse_writepage_in_flight(wpa, page)) {
+ if (data->wpa) {
+ /*
+ * Protected by fi->lock against concurrent access by
+ * fuse_page_is_writeback().
+ */
+ spin_lock(&fi->lock);
+ ap->num_pages++;
+ spin_unlock(&fi->lock);
+ } else if (fuse_writepage_add(wpa, page)) {
+ data->wpa = wpa;
+ } else {
end_page_writeback(page);
- data->wpa = NULL;
- goto out_unlock;
}
- data->orig_pages[ap->num_pages] = page;
-
- /*
- * Protected by fi->lock against concurrent access by
- * fuse_page_is_writeback().
- */
- spin_lock(&fi->lock);
- ap->num_pages++;
- spin_unlock(&fi->lock);
-
out_unlock:
unlock_page(page);
@@@ -2166,8 -2149,10 +2166,8 @@@ static int fuse_writepages(struct addre
err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data);
if (data.wpa) {
- /* Ignore errors if we can write at least one page */
WARN_ON(!data.wpa->ia.ap.num_pages);
fuse_writepages_send(&data);
- err = 0;
}
if (data.ff)
fuse_file_put(data.ff, false, false);
@@@ -2776,16 -2761,7 +2776,16 @@@ long fuse_do_ioctl(struct file *file, u
struct iovec *iov = iov_page;
iov->iov_base = (void __user *)arg;
- iov->iov_len = _IOC_SIZE(cmd);
+
+ switch (cmd) {
+ case FS_IOC_GETFLAGS:
+ case FS_IOC_SETFLAGS:
+ iov->iov_len = sizeof(int);
+ break;
+ default:
+ iov->iov_len = _IOC_SIZE(cmd);
+ break;
+ }
if (_IOC_DIR(cmd) & _IOC_WRITE) {
in_iov = iov;
@@@ -2987,7 -2963,7 +2987,7 @@@ static void fuse_register_polled_file(s
{
spin_lock(&fc->lock);
if (RB_EMPTY_NODE(&ff->polled_node)) {
- struct rb_node **link, *uninitialized_var(parent);
+ struct rb_node **link, *parent;
link = fuse_find_polled_node(fc, ff->kh, &parent);
BUG_ON(*link);
@@@ -3406,7 -3382,6 +3406,6 @@@ static const struct file_operations fus
.fsync = fuse_fsync,
.lock = fuse_file_lock,
.flock = fuse_file_flock,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = fuse_file_ioctl,
.compat_ioctl = fuse_file_compat_ioctl,
diff --combined fs/gfs2/file.c
index 973cac25e781,3e0f0435c96a..8f172bbf5996
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@@ -781,44 -781,40 +781,44 @@@ static int gfs2_fsync(struct file *file
return ret ? ret : ret1;
}
-static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to)
+static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
size_t count = iov_iter_count(to);
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
if (!count)
return 0; /* skip atime */
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
- ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
- gfs2_glock_dq(&gh);
+ ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL, flags);
+
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
-static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
+static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct gfs2_inode *ip = GFS2_I(inode);
size_t len = iov_iter_count(from);
loff_t offset = iocb->ki_pos;
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
/*
* Deferred lock, even if its a write, since we do no allocation on
@@@ -828,8 -824,8 +828,8 @@@
* unfortunately, have the option of only flushing a range like the
* VFS does.
*/
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
@@@ -837,15 -833,13 +837,15 @@@
if (offset + len > i_size_read(&ip->i_inode))
goto out;
- ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL, flags);
out:
- gfs2_glock_dq(&gh);
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
@@@ -857,7 -851,7 +857,7 @@@ static ssize_t gfs2_file_read_iter(stru
ssize_t ret;
if (iocb->ki_flags & IOCB_DIRECT) {
- ret = gfs2_file_direct_read(iocb, to);
+ ret = gfs2_file_direct_read(iocb, to, &gh);
if (likely(ret != -ENOTBLK))
return ret;
iocb->ki_flags &= ~IOCB_DIRECT;
@@@ -906,12 -900,13 +906,12 @@@ static ssize_t gfs2_file_write_iter(str
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_holder gh;
ssize_t ret;
gfs2_size_hint(file, iocb->ki_pos, iov_iter_count(from));
if (iocb->ki_flags & IOCB_APPEND) {
- struct gfs2_holder gh;
-
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
return ret;
@@@ -935,7 -930,7 +935,7 @@@
struct address_space *mapping = file->f_mapping;
ssize_t buffered, ret2;
- ret = gfs2_file_direct_write(iocb, from);
+ ret = gfs2_file_direct_write(iocb, from, &gh);
if (ret < 0 || !iov_iter_count(from))
goto out_unlock;
@@@ -1376,7 -1371,6 +1376,6 @@@ const struct file_operations gfs2_file_
.fsync = gfs2_fsync,
.lock = gfs2_lock,
.flock = gfs2_flock,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = simple_nosetlease,
.fallocate = gfs2_fallocate,
@@@ -1407,7 -1401,6 +1406,6 @@@ const struct file_operations gfs2_file_
.open = gfs2_open,
.release = gfs2_release,
.fsync = gfs2_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = generic_setlease,
.fallocate = gfs2_fallocate,
diff --combined fs/gfs2/glock.c
index 57134d326cfa,ffc9e4273a23..63a6c3e391e9
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@@ -2106,12 -2106,6 +2106,12 @@@ static const char *gflags2str(char *buf
*p++ = 'o';
if (test_bit(GLF_BLOCKING, gflags))
*p++ = 'b';
+ if (test_bit(GLF_INODE_CREATING, gflags))
+ *p++ = 'c';
+ if (test_bit(GLF_PENDING_DELETE, gflags))
+ *p++ = 'P';
+ if (test_bit(GLF_FREEING, gflags))
+ *p++ = 'x';
*p = 0;
return buf;
}
@@@ -2479,7 -2473,7 +2479,7 @@@ static int gfs2_sbstats_open(struct ino
static const struct file_operations gfs2_glocks_fops = {
.owner = THIS_MODULE,
.open = gfs2_glocks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2487,7 -2481,7 +2487,7 @@@
static const struct file_operations gfs2_glstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_glstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2495,7 -2489,7 +2495,7 @@@
static const struct file_operations gfs2_sbstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_sbstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/hfs/inode.c
index f35a37c65e5f,6181d3818e17..8d78da646f74
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@@ -17,7 -17,6 +17,7 @@@
#include <linux/cred.h>
#include <linux/uio.h>
#include <linux/xattr.h>
+#include <linux/blkdev.h>
#include "hfs_fs.h"
#include "btree.h"
@@@ -683,7 -682,6 +683,6 @@@ static const struct file_operations hfs
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
- .splice_read = generic_file_splice_read,
.fsync = hfs_file_fsync,
.open = hfs_file_open,
.release = hfs_file_release,
diff --combined fs/nfs/file.c
index f96367a2463e,8ba06f6c3ec5..0922833c90e6
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@@ -83,6 -83,7 +83,6 @@@ nfs_file_release(struct inode *inode, s
dprintk("NFS: release(%pD2)\n", filp);
nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
- inode_dio_wait(inode);
nfs_file_clear_open_context(filp);
return 0;
}
@@@ -850,7 -851,6 +850,6 @@@ const struct file_operations nfs_file_o
.fsync = nfs_file_fsync,
.lock = nfs_lock,
.flock = nfs_flock,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.check_flags = nfs_check_flags,
.setlease = simple_nosetlease,
diff --combined fs/nfsd/nfsctl.c
index 7ae236113040,c6f2faa759d1..b36911385f5d
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@@ -159,7 -159,7 +159,7 @@@ static int exports_proc_open(struct ino
static const struct proc_ops exports_proc_ops = {
.proc_open = exports_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
@@@ -171,7 -171,7 +171,7 @@@ static int exports_nfsd_open(struct ino
static const struct file_operations exports_nfsd_operations = {
.open = exports_nfsd_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -189,7 -189,7 +189,7 @@@ static int export_features_open(struct
static const struct file_operations export_features_operations = {
.open = export_features_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -208,7 -208,7 +208,7 @@@ static int supported_enctypes_open(stru
static const struct file_operations supported_enctypes_ops = {
.open = supported_enctypes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -216,14 -216,14 +216,14 @@@
static const struct file_operations pool_stats_operations = {
.open = nfsd_pool_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = nfsd_pool_stats_release,
};
static const struct file_operations reply_cache_stats_operations = {
.open = nfsd_reply_cache_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -351,7 -351,7 +351,7 @@@ static ssize_t write_unlock_fs(struct f
static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
{
char *dname, *path;
- int uninitialized_var(maxsize);
+ int maxsize;
char *mesg = buf;
int len;
struct auth_domain *dom;
diff --combined fs/omfs/file.c
index 2c7b70ee1388,0dddc6c644c1..cae3f4dcae54
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@@ -220,7 -220,7 +220,7 @@@ static int omfs_get_block(struct inode
struct buffer_head *bh;
sector_t next, offset;
int ret;
- u64 uninitialized_var(new_block);
+ u64 new_block;
u32 max_extents;
int extent_count;
struct omfs_extent *oe;
@@@ -340,7 -340,6 +340,6 @@@ const struct file_operations omfs_file_
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = generic_file_fsync,
- .splice_read = generic_file_splice_read,
};
static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
diff --combined fs/proc/array.c
index 65ec2029fa80,49456efa31e3..5f6c8a8cb701
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@@ -341,8 -341,6 +341,8 @@@ static inline void task_seccomp(struct
seq_put_decimal_ull(m, "NoNewPrivs:\t", task_no_new_privs(p));
#ifdef CONFIG_SECCOMP
seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode);
+ seq_put_decimal_ull(m, "\nSeccomp_filters:\t",
+ atomic_read(&p->seccomp.filter_count));
#endif
seq_puts(m, "\nSpeculation_Store_Bypass:\t");
switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
@@@ -768,7 -766,7 +768,7 @@@ static int children_seq_open(struct ino
const struct file_operations proc_tid_children_operations = {
.open = children_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/proc/task_mmu.c
index 4f8ae353a8c5,df2f0f05f5ba..3465973308b7
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@@ -351,7 -351,7 +351,7 @@@ static int pid_maps_open(struct inode *
const struct file_operations proc_pid_maps_operations = {
.open = pid_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
@@@ -653,10 -653,6 +653,10 @@@ static void show_smap_vma_flags(struct
[ilog2(VM_MERGEABLE)] = "mg",
[ilog2(VM_UFFD_MISSING)]= "um",
[ilog2(VM_UFFD_WP)] = "uw",
+#ifdef CONFIG_ARM64_MTE
+ [ilog2(VM_MTE)] = "mt",
+ [ilog2(VM_MTE_ALLOWED)] = "",
+#endif
#ifdef CONFIG_ARCH_HAS_PKEYS
/* These come out via ProtectionKey: */
[ilog2(VM_PKEY_BIT0)] = "",
@@@ -937,14 -933,14 +937,14 @@@ static int smaps_rollup_release(struct
const struct file_operations proc_pid_smaps_operations = {
.open = pid_smaps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
const struct file_operations proc_pid_smaps_rollup_operations = {
.open = smaps_rollup_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = smaps_rollup_release,
};
@@@ -1883,7 -1879,7 +1883,7 @@@ static int pid_numa_maps_open(struct in
const struct file_operations proc_pid_numa_maps_operations = {
.open = pid_numa_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
diff --combined fs/ubifs/file.c
index b77d1637bbbc,a3af46b39508..fb41c77cae1e
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@@ -222,7 -222,7 +222,7 @@@ static int write_begin_slow(struct addr
struct ubifs_info *c = inode->i_sb->s_fs_info;
pgoff_t index = pos >> PAGE_SHIFT;
struct ubifs_budget_req req = { .new_page = 1 };
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
struct page *page;
dbg_gen("ino %lu, pos %llu, len %u, i_size %lld",
@@@ -426,7 -426,7 +426,7 @@@ static int ubifs_write_begin(struct fil
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode);
pgoff_t index = pos >> PAGE_SHIFT;
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
int skipped_read = 0;
struct page *page;
@@@ -1668,7 -1668,6 +1668,6 @@@ const struct file_operations ubifs_file
.mmap = ubifs_file_mmap,
.fsync = ubifs_fsync,
.unlocked_ioctl = ubifs_ioctl,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.open = fscrypt_file_open,
#ifdef CONFIG_COMPAT
diff --combined fs/xfs/xfs_file.c
index 781f72b06af0,964bc733e765..36ba167f0e80
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@@ -94,7 -94,6 +94,7 @@@ xfs_file_fsync
{
struct inode *inode = file->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_inode_log_item *iip = ip->i_itemp;
struct xfs_mount *mp = ip->i_mount;
int error = 0;
int log_flushed = 0;
@@@ -138,15 -137,13 +138,15 @@@
xfs_ilock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip)) {
if (!datasync ||
- (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
- lsn = ip->i_itemp->ili_last_lsn;
+ (iip->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
+ lsn = iip->ili_last_lsn;
}
if (lsn) {
error = xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed);
- ip->i_itemp->ili_fsync_fields = 0;
+ spin_lock(&iip->ili_lock);
+ iip->ili_fsync_fields = 0;
+ spin_unlock(&iip->ili_lock);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@@ -172,8 -169,6 +172,8 @@@ xfs_file_dio_aio_read
struct xfs_inode *ip = XFS_I(file_inode(iocb->ki_filp));
size_t count = iov_iter_count(to);
ssize_t ret;
+ unsigned int flags = 0;
+
trace_xfs_file_direct_read(ip, count, iocb->ki_pos);
@@@ -188,11 -183,8 +188,11 @@@
} else {
xfs_ilock(ip, XFS_IOLOCK_SHARED);
}
- ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL, flags);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
return ret;
@@@ -491,7 -483,6 +491,7 @@@ xfs_file_dio_aio_write
int iolock;
size_t count = iov_iter_count(from);
struct xfs_buftarg *target = xfs_inode_buftarg(ip);
+ unsigned int flags = 0;
/* DIO must be aligned to device logical sector size */
if ((iocb->ki_pos | count) & target->bt_logical_sectormask)
@@@ -555,10 -546,9 +555,10 @@@
* If unaligned, this is the only IO in-flight. Wait on it before we
* release the iolock to prevent subsequent overlapping IO.
*/
+ if (is_sync_kiocb(iocb) || unaligned_io)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, from, &xfs_direct_write_iomap_ops,
- &xfs_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io);
+ &xfs_dio_write_ops, flags);
out:
xfs_iunlock(ip, iolock);
@@@ -1045,7 -1035,7 +1045,7 @@@ xfs_file_remap_range
/* Prepare and then clone file data. */
ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out,
&len, remap_flags);
- if (ret < 0 || len == 0)
+ if (ret || len == 0)
return ret;
trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out);
@@@ -1075,7 -1065,7 +1075,7 @@@
if (mp->m_flags & XFS_MOUNT_WSYNC)
xfs_log_force_inode(dest);
out_unlock:
- xfs_reflink_remap_unlock(file_in, file_out);
+ xfs_iunlock2_io_mmap(src, dest);
if (ret)
trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_);
return remapped > 0 ? remapped : ret;
@@@ -1090,7 -1080,7 +1090,7 @@@ xfs_file_open
return -EFBIG;
if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb)))
return -EIO;
- file->f_mode |= FMODE_NOWAIT;
+ file->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return 0;
}
@@@ -1273,23 -1263,10 +1273,23 @@@ xfs_filemap_pfn_mkwrite
return __xfs_filemap_fault(vmf, PE_SIZE_PTE, true);
}
+static void
+xfs_filemap_map_pages(
+ struct vm_fault *vmf,
+ pgoff_t start_pgoff,
+ pgoff_t end_pgoff)
+{
+ struct inode *inode = file_inode(vmf->vma->vm_file);
+
+ xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+ filemap_map_pages(vmf, start_pgoff, end_pgoff);
+ xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+}
+
static const struct vm_operations_struct xfs_file_vm_ops = {
.fault = xfs_filemap_fault,
.huge_fault = xfs_filemap_huge_fault,
- .map_pages = filemap_map_pages,
+ .map_pages = xfs_filemap_map_pages,
.page_mkwrite = xfs_filemap_page_mkwrite,
.pfn_mkwrite = xfs_filemap_pfn_mkwrite,
};
@@@ -1320,7 -1297,6 +1320,6 @@@ const struct file_operations xfs_file_o
.llseek = xfs_file_llseek,
.read_iter = xfs_file_read_iter,
.write_iter = xfs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
.unlocked_ioctl = xfs_file_ioctl,
diff --combined fs/zonefs/super.c
index 798e2e636887,d9f5fbeb5506..0d59e3fff1a7
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@@ -670,7 -670,6 +670,7 @@@ static ssize_t zonefs_file_dio_write(st
bool append = false;
size_t count;
ssize_t ret;
+ int flags = 0;
/*
* For async direct IOs to sequential zone files, refuse IOCB_NOWAIT
@@@ -712,15 -711,11 +712,15 @@@
append = sync;
}
- if (append)
+ if (append) {
ret = zonefs_file_dio_append(iocb, from);
- else
+ } else {
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
- &zonefs_write_dio_ops, sync);
+ &zonefs_write_dio_ops, flags);
+ }
if (zi->i_ztype == ZONEFS_ZTYPE_SEQ &&
(ret > 0 || ret == -EIOCBQUEUED)) {
if (ret > 0)
@@@ -819,7 -814,6 +819,7 @@@ static ssize_t zonefs_file_read_iter(st
struct super_block *sb = inode->i_sb;
loff_t isize;
ssize_t ret;
+ int flags = 0;
/* Offline zones cannot be read */
if (unlikely(IS_IMMUTABLE(inode) && !(inode->i_mode & 0777)))
@@@ -854,10 -848,8 +854,10 @@@
goto inode_unlock;
}
file_accessed(iocb->ki_filp);
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, to, &zonefs_iomap_ops,
- &zonefs_read_dio_ops, is_sync_kiocb(iocb));
+ &zonefs_read_dio_ops, flags);
} else {
ret = generic_file_read_iter(iocb, to);
if (ret == -EIO)
@@@ -877,7 -869,6 +877,6 @@@ static const struct file_operations zon
.llseek = zonefs_file_llseek,
.read_iter = zonefs_file_read_iter,
.write_iter = zonefs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
};
diff --combined include/linux/bpf-cgroup.h
index 2c6f26670acc,f81d3b3752f9..a4079965c98e
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@@ -132,7 -132,7 +132,7 @@@ int __cgroup_bpf_check_dev_permission(s
int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
struct ctl_table *table, int write,
- void **buf, size_t *pcount, loff_t *ppos,
+ char **buf, size_t *pcount, loff_t *ppos,
enum bpf_attach_type type);
int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
@@@ -210,9 -210,6 +210,9 @@@ int bpf_percpu_cgroup_storage_update(st
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_CREATE)
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \
+ BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_RELEASE)
+
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET4_POST_BIND)
@@@ -404,7 -401,6 +404,7 @@@ static inline int bpf_percpu_cgroup_sto
#define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET6_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
diff --combined include/linux/fs.h
index a771d4f2e41d,7680752cff24..166ae3eafb58
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@@ -39,7 -39,6 +39,7 @@@
#include <linux/fs_types.h>
#include <linux/build_bug.h>
#include <linux/stddef.h>
+#include <linux/watch_queue.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@@ -69,7 -68,6 +69,7 @@@ struct fsverity_info
struct fsverity_operations;
struct fs_context;
struct fs_parameter_spec;
+struct fsinfo_context;
extern void __init inode_init(void);
extern void __init inode_init_early(void);
@@@ -177,9 -175,6 +177,9 @@@ typedef int (dio_iodone_t)(struct kioc
/* File does not contribute to nr_files count */
#define FMODE_NOACCOUNT ((__force fmode_t)0x20000000)
+/* File supports async buffered reads */
+#define FMODE_BUF_RASYNC ((__force fmode_t)0x40000000)
+
/*
* Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
* that indicates that they should check the contents of the iovec are
@@@ -320,8 -315,6 +320,8 @@@ enum rw_hint
#define IOCB_SYNC (1 << 5)
#define IOCB_WRITE (1 << 6)
#define IOCB_NOWAIT (1 << 7)
+/* iocb->ki_waitq is valid */
+#define IOCB_WAITQ (1 << 8)
#define IOCB_NOIO (1 << 9)
struct kiocb {
@@@ -336,10 -329,7 +336,10 @@@
int ki_flags;
u16 ki_hint;
u16 ki_ioprio; /* See linux/ioprio.h */
- unsigned int ki_cookie; /* for ->iopoll */
+ union {
+ unsigned int ki_cookie; /* for ->iopoll */
+ struct wait_page_queue *ki_waitq; /* for async buffered IO */
+ };
randomized_struct_fields_end
};
@@@ -481,6 -471,45 +481,6 @@@ struct address_space
* must be enforced here for CRIS, to let the least significant bit
* of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON.
*/
-struct request_queue;
-
-struct block_device {
- dev_t bd_dev; /* not a kdev_t - it's a search key */
- int bd_openers;
- struct inode * bd_inode; /* will die */
- struct super_block * bd_super;
- struct mutex bd_mutex; /* open/close mutex */
- void * bd_claiming;
- void * bd_holder;
- int bd_holders;
- bool bd_write_holder;
-#ifdef CONFIG_SYSFS
- struct list_head bd_holder_disks;
-#endif
- struct block_device * bd_contains;
- unsigned bd_block_size;
- u8 bd_partno;
- struct hd_struct * bd_part;
- /* number of times partitions within this device have been opened. */
- unsigned bd_part_count;
- int bd_invalidated;
- struct gendisk * bd_disk;
- struct request_queue * bd_queue;
- struct backing_dev_info *bd_bdi;
- struct list_head bd_list;
- /*
- * Private data. You must have bd_claim'ed the block_device
- * to use this. NOTE: bd_claim allows an owner to claim
- * the same device multiple times, the owner must take special
- * care to not mess up bd_private for that case.
- */
- unsigned long bd_private;
-
- /* The counter of freeze processes */
- int bd_fsfreeze_count;
- /* Mutex for freeze */
- struct mutex bd_fsfreeze_mutex;
-} __randomize_layout;
/* XArray tags, for tagging dirty and writeback pages in the pagecache. */
#define PAGECACHE_TAG_DIRTY XA_MARK_0
@@@ -879,6 -908,8 +879,6 @@@ static inline unsigned imajor(const str
return MAJOR(inode->i_rdev);
}
-extern struct block_device *I_BDEV(struct inode *inode);
-
struct fown_struct {
rwlock_t lock; /* protects pid, uid, euid fields */
struct pid *pid; /* pid or -pgrp where SIGIO should be sent */
@@@ -1350,7 -1381,6 +1350,7 @@@ extern int send_sigurg(struct fown_stru
#define SB_NODIRATIME 2048 /* Do not update directory access times */
#define SB_SILENT 32768
#define SB_POSIXACL (1<<16) /* VFS does not apply the umask */
+#define SB_INLINECRYPT (1<<17) /* Use blk-crypto for encrypted files */
#define SB_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define SB_I_VERSION (1<<23) /* Update inode I_version field */
#define SB_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
@@@ -1534,15 -1564,6 +1534,15 @@@ struct super_block
spinlock_t s_inode_wblist_lock;
struct list_head s_inodes_wb; /* writeback inodes */
+
+ /* Superblock event notifications */
+ u64 s_unique_id;
+
+#ifdef CONFIG_SB_NOTIFICATIONS
+ struct watch_list *s_watchers;
+#endif
+ atomic_t s_change_counter; /* Count of config change notifications */
+ atomic_t s_notify_counter; /* Count of other notifications */
} __randomize_layout;
/* Helper functions so that in most cases filesystems will
@@@ -1754,6 -1775,14 +1754,6 @@@ struct dir_context
loff_t pos;
};
-struct block_device_operations;
-
-/* These macros are for out of kernel modules to test that
- * the kernel supports the unlocked_ioctl and compat_ioctl
- * fields in struct file_operations. */
-#define HAVE_COMPAT_IOCTL 1
-#define HAVE_UNLOCKED_IOCTL 1
-
/*
* These flags let !MMU mmap() govern direct device mapping vs immediate
* copying more easily for MAP_PRIVATE, especially for ROM filesystems.
@@@ -1891,8 -1920,6 +1891,6 @@@ ssize_t rw_copy_check_uvector(int type
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
- extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
- unsigned long, loff_t *, rwf_t);
extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
loff_t, size_t, unsigned int);
extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
@@@ -1931,9 -1958,6 +1929,9 @@@ struct super_operations
int (*thaw_super) (struct super_block *);
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
+#ifdef CONFIG_FSINFO
+ int (*fsinfo)(struct path *, struct fsinfo_context *);
+#endif
int (*remount_fs) (struct super_block *, int *, char *);
void (*umount_begin) (struct super_block *);
@@@ -2132,10 -2156,6 +2130,10 @@@ static inline void kiocb_clone(struct k
*
* I_DONTCACHE Evict inode as soon as it is not used anymore.
*
+ * I_SYNC_QUEUED Inode is queued in b_io or b_more_io writeback lists.
+ * Used to detect that mark_inode_dirty() should not move
+ * inode between dirty lists.
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@@ -2153,11 -2173,12 +2151,11 @@@
#define I_DIO_WAKEUP (1 << __I_DIO_WAKEUP)
#define I_LINKABLE (1 << 10)
#define I_DIRTY_TIME (1 << 11)
-#define __I_DIRTY_TIME_EXPIRED 12
-#define I_DIRTY_TIME_EXPIRED (1 << __I_DIRTY_TIME_EXPIRED)
#define I_WB_SWITCH (1 << 13)
#define I_OVL_INUSE (1 << 14)
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
+#define I_SYNC_QUEUED (1 << 17)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
@@@ -2241,9 -2262,18 +2239,9 @@@ struct file_system_type
#define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME)
-#ifdef CONFIG_BLOCK
extern struct dentry *mount_bdev(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
int (*fill_super)(struct super_block *, void *, int));
-#else
-static inline struct dentry *mount_bdev(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data,
- int (*fill_super)(struct super_block *, void *, int))
-{
- return ERR_PTR(-ENODEV);
-}
-#endif
extern struct dentry *mount_single(struct file_system_type *fs_type,
int flags, void *data,
int (*fill_super)(struct super_block *, void *, int));
@@@ -2252,7 -2282,14 +2250,7 @@@ extern struct dentry *mount_nodev(struc
int (*fill_super)(struct super_block *, void *, int));
extern struct dentry *mount_subtree(struct vfsmount *mnt, const char *path);
void generic_shutdown_super(struct super_block *sb);
-#ifdef CONFIG_BLOCK
void kill_block_super(struct super_block *sb);
-#else
-static inline void kill_block_super(struct super_block *sb)
-{
- BUG();
-}
-#endif
void kill_anon_super(struct super_block *sb);
void kill_litter_super(struct super_block *sb);
void deactivate_super(struct super_block *sb);
@@@ -2542,16 -2579,93 +2540,16 @@@ extern struct kmem_cache *names_cachep
#define __getname() kmem_cache_alloc(names_cachep, GFP_KERNEL)
#define __putname(name) kmem_cache_free(names_cachep, (void *)(name))
-#ifdef CONFIG_BLOCK
-extern int register_blkdev(unsigned int, const char *);
-extern void unregister_blkdev(unsigned int, const char *);
-extern struct block_device *bdget(dev_t);
-extern struct block_device *bdgrab(struct block_device *bdev);
-extern void bd_set_size(struct block_device *, loff_t size);
-extern void bd_forget(struct inode *inode);
-extern void bdput(struct block_device *);
-extern void invalidate_bdev(struct block_device *);
-extern void iterate_bdevs(void (*)(struct block_device *, void *), void *);
-extern int sync_blockdev(struct block_device *bdev);
-extern struct super_block *freeze_bdev(struct block_device *);
-extern void emergency_thaw_all(void);
-extern void emergency_thaw_bdev(struct super_block *sb);
-extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
-extern int fsync_bdev(struct block_device *);
-
extern struct super_block *blockdev_superblock;
-
static inline bool sb_is_blkdev_sb(struct super_block *sb)
{
- return sb == blockdev_superblock;
-}
-#else
-static inline void bd_forget(struct inode *inode) {}
-static inline int sync_blockdev(struct block_device *bdev) { return 0; }
-static inline void invalidate_bdev(struct block_device *bdev) {}
-
-static inline struct super_block *freeze_bdev(struct block_device *sb)
-{
- return NULL;
-}
-
-static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
- return 0;
-}
-
-static inline int emergency_thaw_bdev(struct super_block *sb)
-{
- return 0;
-}
-
-static inline void iterate_bdevs(void (*f)(struct block_device *, void *), void *arg)
-{
+ return IS_ENABLED(CONFIG_BLOCK) && sb == blockdev_superblock;
}
-static inline bool sb_is_blkdev_sb(struct super_block *sb)
-{
- return false;
-}
-#endif
+void emergency_thaw_all(void);
extern int sync_filesystem(struct super_block *);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
-#ifdef CONFIG_BLOCK
-extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
-extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long);
-extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder);
-extern struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
- void *holder);
-extern struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode,
- void *holder);
-extern struct block_device *bd_start_claiming(struct block_device *bdev,
- void *holder);
-extern void bd_finish_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void bd_abort_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void blkdev_put(struct block_device *bdev, fmode_t mode);
-
-#ifdef CONFIG_SYSFS
-extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
-extern void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk);
-#else
-static inline int bd_link_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
- return 0;
-}
-static inline void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
-}
-#endif
-#endif
/* fs/char_dev.c */
#define CHRDEV_MAJOR_MAX 512
@@@ -2582,12 -2696,31 +2580,12 @@@ static inline void unregister_chrdev(un
__unregister_chrdev(major, 0, 256, name);
}
-/* fs/block_dev.c */
-#define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */
-#define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */
-
-#ifdef CONFIG_BLOCK
-#define BLKDEV_MAJOR_MAX 512
-extern const char *bdevname(struct block_device *bdev, char *buffer);
-extern struct block_device *lookup_bdev(const char *);
-extern void blkdev_show(struct seq_file *,off_t);
-
-#else
-#define BLKDEV_MAJOR_MAX 0
-#endif
-
extern void init_special_inode(struct inode *, umode_t, dev_t);
/* Invalid inode operations -- fs/bad_inode.c */
extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
-#ifdef CONFIG_BLOCK
-extern int revalidate_disk(struct gendisk *);
-extern int check_disk_change(struct block_device *);
-extern int __invalidate_device(struct block_device *, bool);
-#endif
unsigned long invalidate_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t end);
@@@ -2692,7 -2825,7 +2690,7 @@@ static inline errseq_t filemap_sample_w
/**
* file_sample_sb_err - sample the current errseq_t to test for later errors
- * @mapping: mapping to be sampled
+ * @file: file pointer to be sampled
*
* Grab the most current superblock-level errseq_t value for the given
* struct file.
@@@ -2988,6 -3121,10 +2986,6 @@@ static inline void remove_inode_hash(st
extern void inode_sb_list_add(struct inode *inode);
-#ifdef CONFIG_BLOCK
-extern int bdev_read_only(struct block_device *);
-#endif
-extern int set_blocksize(struct block_device *, int);
extern int sb_set_blocksize(struct super_block *, int);
extern int sb_min_blocksize(struct super_block *, int);
@@@ -3525,56 -3662,4 +3523,56 @@@ static inline int inode_drain_writes(st
return filemap_write_and_wait(inode->i_mapping);
}
+extern void __notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info);
+extern void __notify_sb_error(struct super_block *s, int error);
+extern void __notify_sb_EQDUOT(struct super_block *s);
+
+/**
+ * notify_sb: Post simple superblock notification.
+ * @s: The superblock the notification is about.
+ * @subtype: The type of notification.
+ * @info: WATCH_INFO_FLAG_* flags to be set in the record.
+ */
+static inline void notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_change_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb(s, subtype, info);
+#endif
+}
+
+/**
+ * notify_sb_error: Post superblock error notification.
+ * @s: The superblock the notification is about.
+ * @error: The error number to be recorded.
+ */
+static inline int notify_sb_error(struct super_block *s, int error)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_error(s, error);
+#endif
+ return error;
+}
+
+/**
+ * notify_sb_EDQUOT: Post superblock quota overrun notification.
+ * @s: The superblock the notification is about.
+ */
+static inline int notify_sb_EQDUOT(struct super_block *s)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_EQDUOT(s);
+#endif
+ return -EDQUOT;
+}
+
#endif /* _LINUX_FS_H */
diff --combined kernel/kallsyms.c
index 95cb74f73292,1c46a1f2e9f9..ad0646efe554
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@@ -24,7 -24,6 +24,7 @@@
#include <linux/slab.h>
#include <linux/filter.h>
#include <linux/ftrace.h>
+#include <linux/kprobes.h>
#include <linux/compiler.h>
/*
@@@ -438,7 -437,6 +438,7 @@@ struct kallsym_iter
loff_t pos_arch_end;
loff_t pos_mod_end;
loff_t pos_ftrace_mod_end;
+ loff_t pos_bpf_end;
unsigned long value;
unsigned int nameoff; /* If iterating in core kernel symbols. */
char type;
@@@ -482,11 -480,6 +482,11 @@@ static int get_ksymbol_mod(struct kalls
return 1;
}
+/*
+ * ftrace_mod_get_kallsym() may also get symbols for pages allocated for ftrace
+ * purposes. In that case "__builtin__ftrace" is used as a module name, even
+ * though "__builtin__ftrace" is not a module.
+ */
static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
{
int ret = ftrace_mod_get_kallsym(iter->pos - iter->pos_mod_end,
@@@ -503,33 -496,11 +503,33 @@@
static int get_ksymbol_bpf(struct kallsym_iter *iter)
{
+ int ret;
+
strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
iter->exported = 0;
- return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
- &iter->value, &iter->type,
- iter->name) < 0 ? 0 : 1;
+ ret = bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
+ &iter->value, &iter->type,
+ iter->name);
+ if (ret < 0) {
+ iter->pos_bpf_end = iter->pos;
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * This uses "__builtin__kprobes" as a module name for symbols for pages
+ * allocated for kprobes' purposes, even though "__builtin__kprobes" is not a
+ * module.
+ */
+static int get_ksymbol_kprobe(struct kallsym_iter *iter)
+{
+ strlcpy(iter->module_name, "__builtin__kprobes", MODULE_NAME_LEN);
+ iter->exported = 0;
+ return kprobe_get_kallsym(iter->pos - iter->pos_bpf_end,
+ &iter->value, &iter->type,
+ iter->name) < 0 ? 0 : 1;
}
/* Returns space to next name. */
@@@ -556,7 -527,6 +556,7 @@@ static void reset_iter(struct kallsym_i
iter->pos_arch_end = 0;
iter->pos_mod_end = 0;
iter->pos_ftrace_mod_end = 0;
+ iter->pos_bpf_end = 0;
}
}
@@@ -581,11 -551,7 +581,11 @@@ static int update_iter_mod(struct kalls
get_ksymbol_ftrace_mod(iter))
return 1;
- return get_ksymbol_bpf(iter);
+ if ((!iter->pos_bpf_end || iter->pos_bpf_end > pos) &&
+ get_ksymbol_bpf(iter))
+ return 1;
+
+ return get_ksymbol_kprobe(iter);
}
/* Returns false if pos at or past end of file. */
@@@ -738,7 -704,7 +738,7 @@@ const char *kdb_walk_kallsyms(loff_t *p
static const struct proc_ops kallsyms_proc_ops = {
.proc_open = kallsyms_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release_private,
};
diff --combined kernel/sched/psi.c
index 967732c0766c,6795170140a0..4c084d66746a
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@@ -190,6 -190,7 +190,6 @@@ static void group_init(struct psi_grou
INIT_DELAYED_WORK(&group->avgs_work, psi_avgs_work);
mutex_init(&group->avgs_lock);
/* Init trigger-related members */
- atomic_set(&group->poll_scheduled, 0);
mutex_init(&group->trigger_lock);
INIT_LIST_HEAD(&group->triggers);
memset(group->nr_triggers, 0, sizeof(group->nr_triggers));
@@@ -198,7 -199,7 +198,7 @@@
memset(group->polling_total, 0, sizeof(group->polling_total));
group->polling_next_update = ULLONG_MAX;
group->polling_until = 0;
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
void __init psi_init(void)
@@@ -546,38 -547,47 +546,38 @@@ static u64 update_triggers(struct psi_g
return now + group->poll_min_period;
}
-/*
- * Schedule polling if it's not already scheduled. It's safe to call even from
- * hotpath because even though kthread_queue_delayed_work takes worker->lock
- * spinlock that spinlock is never contended due to poll_scheduled atomic
- * preventing such competition.
- */
+/* Schedule polling if it's not already scheduled. */
static void psi_schedule_poll_work(struct psi_group *group, unsigned long delay)
{
- struct kthread_worker *kworker;
+ struct task_struct *task;
- /* Do not reschedule if already scheduled */
- if (atomic_cmpxchg(&group->poll_scheduled, 0, 1) != 0)
+ /*
+ * Do not reschedule if already scheduled.
+ * Possible race with a timer scheduled after this check but before
+ * mod_timer below can be tolerated because group->polling_next_update
+ * will keep updates on schedule.
+ */
+ if (timer_pending(&group->poll_timer))
return;
rcu_read_lock();
- kworker = rcu_dereference(group->poll_kworker);
+ task = rcu_dereference(group->poll_task);
/*
* kworker might be NULL in case psi_trigger_destroy races with
* psi_task_change (hotpath) which can't use locks
*/
- if (likely(kworker))
- kthread_queue_delayed_work(kworker, &group->poll_work, delay);
- else
- atomic_set(&group->poll_scheduled, 0);
+ if (likely(task))
+ mod_timer(&group->poll_timer, jiffies + delay);
rcu_read_unlock();
}
-static void psi_poll_work(struct kthread_work *work)
+static void psi_poll_work(struct psi_group *group)
{
- struct kthread_delayed_work *dwork;
- struct psi_group *group;
u32 changed_states;
u64 now;
- dwork = container_of(work, struct kthread_delayed_work, work);
- group = container_of(dwork, struct psi_group, poll_work);
-
- atomic_set(&group->poll_scheduled, 0);
-
mutex_lock(&group->trigger_lock);
now = sched_clock();
@@@ -613,32 -623,6 +613,32 @@@ out
mutex_unlock(&group->trigger_lock);
}
+static int psi_poll_worker(void *data)
+{
+ struct psi_group *group = (struct psi_group *)data;
+
+ sched_set_fifo_low(current);
+
+ while (true) {
+ wait_event_interruptible(group->poll_wait,
+ atomic_cmpxchg(&group->poll_wakeup, 1, 0) ||
+ kthread_should_stop());
+ if (kthread_should_stop())
+ break;
+
+ psi_poll_work(group);
+ }
+ return 0;
+}
+
+static void poll_timer_fn(struct timer_list *t)
+{
+ struct psi_group *group = from_timer(group, t, poll_timer);
+
+ atomic_set(&group->poll_wakeup, 1);
+ wake_up_interruptible(&group->poll_wait);
+}
+
static void record_times(struct psi_group_cpu *groupc, int cpu,
bool memstall_tick)
{
@@@ -1115,20 -1099,22 +1115,20 @@@ struct psi_trigger *psi_trigger_create(
mutex_lock(&group->trigger_lock);
- if (!rcu_access_pointer(group->poll_kworker)) {
- struct sched_param param = {
- .sched_priority = 1,
- };
- struct kthread_worker *kworker;
+ if (!rcu_access_pointer(group->poll_task)) {
+ struct task_struct *task;
- kworker = kthread_create_worker(0, "psimon");
- if (IS_ERR(kworker)) {
+ task = kthread_create(psi_poll_worker, group, "psimon");
+ if (IS_ERR(task)) {
kfree(t);
mutex_unlock(&group->trigger_lock);
- return ERR_CAST(kworker);
+ return ERR_CAST(task);
}
- sched_setscheduler_nocheck(kworker->task, SCHED_FIFO, ¶m);
- kthread_init_delayed_work(&group->poll_work,
- psi_poll_work);
- rcu_assign_pointer(group->poll_kworker, kworker);
+ atomic_set(&group->poll_wakeup, 0);
+ init_waitqueue_head(&group->poll_wait);
+ wake_up_process(task);
+ timer_setup(&group->poll_timer, poll_timer_fn, 0);
+ rcu_assign_pointer(group->poll_task, task);
}
list_add(&t->node, &group->triggers);
@@@ -1146,7 -1132,7 +1146,7 @@@ static void psi_trigger_destroy(struct
{
struct psi_trigger *t = container_of(ref, struct psi_trigger, refcount);
struct psi_group *group = t->group;
- struct kthread_worker *kworker_to_destroy = NULL;
+ struct task_struct *task_to_destroy = NULL;
if (static_branch_likely(&psi_disabled))
return;
@@@ -1172,13 -1158,13 +1172,13 @@@
period = min(period, div_u64(tmp->win.size,
UPDATES_PER_WINDOW));
group->poll_min_period = period;
- /* Destroy poll_kworker when the last trigger is destroyed */
+ /* Destroy poll_task when the last trigger is destroyed */
if (group->poll_states == 0) {
group->polling_until = 0;
- kworker_to_destroy = rcu_dereference_protected(
- group->poll_kworker,
+ task_to_destroy = rcu_dereference_protected(
+ group->poll_task,
lockdep_is_held(&group->trigger_lock));
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
}
@@@ -1186,23 -1172,25 +1186,23 @@@
/*
* Wait for both *trigger_ptr from psi_trigger_replace and
- * poll_kworker RCUs to complete their read-side critical sections
- * before destroying the trigger and optionally the poll_kworker
+ * poll_task RCUs to complete their read-side critical sections
+ * before destroying the trigger and optionally the poll_task
*/
synchronize_rcu();
/*
* Destroy the kworker after releasing trigger_lock to prevent a
* deadlock while waiting for psi_poll_work to acquire trigger_lock
*/
- if (kworker_to_destroy) {
+ if (task_to_destroy) {
/*
* After the RCU grace period has expired, the worker
- * can no longer be found through group->poll_kworker.
+ * can no longer be found through group->poll_task.
* But it might have been already scheduled before
* that - deschedule it cleanly before destroying it.
*/
- kthread_cancel_delayed_work_sync(&group->poll_work);
- atomic_set(&group->poll_scheduled, 0);
-
- kthread_destroy_worker(kworker_to_destroy);
+ del_timer_sync(&group->poll_timer);
+ kthread_stop(task_to_destroy);
}
kfree(t);
}
@@@ -1317,7 -1305,7 +1317,7 @@@ static int psi_fop_release(struct inod
static const struct proc_ops psi_io_proc_ops = {
.proc_open = psi_io_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_io_write,
.proc_poll = psi_fop_poll,
@@@ -1326,7 -1314,7 +1326,7 @@@
static const struct proc_ops psi_memory_proc_ops = {
.proc_open = psi_memory_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_memory_write,
.proc_poll = psi_fop_poll,
@@@ -1335,7 -1323,7 +1335,7 @@@
static const struct proc_ops psi_cpu_proc_ops = {
.proc_open = psi_cpu_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_cpu_write,
.proc_poll = psi_fop_poll,
diff --combined kernel/trace/ftrace.c
index 62e9b93d5fee,6a645f2ebf47..a3093a84bae3
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@@ -2388,14 -2388,6 +2388,14 @@@ struct ftrace_ops direct_ops =
.flags = FTRACE_OPS_FL_IPMODIFY | FTRACE_OPS_FL_RECURSION_SAFE
| FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS
| FTRACE_OPS_FL_PERMANENT,
+ /*
+ * By declaring the main trampoline as this trampoline
+ * it will never have one allocated for it. Allocated
+ * trampolines should not call direct functions.
+ * The direct_ops should only be called by the builtin
+ * ftrace_regs_caller trampoline.
+ */
+ .trampoline = FTRACE_REGS_ADDR,
};
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
@@@ -2772,50 -2764,6 +2772,50 @@@ void __weak arch_ftrace_trampoline_free
{
}
+/* List of trace_ops that have allocated trampolines */
+static LIST_HEAD(ftrace_ops_trampoline_list);
+
+static void ftrace_add_trampoline_to_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_add_rcu(&ops->list, &ftrace_ops_trampoline_list);
+}
+
+static void ftrace_remove_trampoline_from_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_del_rcu(&ops->list);
+}
+
+/*
+ * "__builtin__ftrace" is used as a module name in /proc/kallsyms for symbols
+ * for pages allocated for ftrace purposes, even though "__builtin__ftrace" is
+ * not a module.
+ */
+#define FTRACE_TRAMPOLINE_MOD "__builtin__ftrace"
+#define FTRACE_TRAMPOLINE_SYM "ftrace_trampoline"
+
+static void ftrace_trampoline_free(struct ftrace_ops *ops)
+{
+ if (ops && (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP) &&
+ ops->trampoline) {
+ /*
+ * Record the text poke event before the ksymbol unregister
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline,
+ (void *)ops->trampoline,
+ ops->trampoline_size, NULL, 0);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size,
+ true, FTRACE_TRAMPOLINE_SYM);
+ /* Remove from kallsyms after the perf events */
+ ftrace_remove_trampoline_from_kallsyms(ops);
+ }
+
+ arch_ftrace_trampoline_free(ops);
+}
+
static void ftrace_startup_enable(int command)
{
if (saved_ftrace_func != ftrace_trace_function) {
@@@ -2986,7 -2934,7 +2986,7 @@@ int ftrace_shutdown(struct ftrace_ops *
synchronize_rcu_tasks();
free_ops:
- arch_ftrace_trampoline_free(ops);
+ ftrace_trampoline_free(ops);
}
return 0;
@@@ -5613,21 -5561,21 +5613,21 @@@ int ftrace_regex_release(struct inode *
static const struct file_operations ftrace_avail_fops = {
.open = ftrace_avail_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_enabled_fops = {
.open = ftrace_enabled_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_filter_fops = {
.open = ftrace_filter_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_filter_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -5635,7 -5583,7 +5635,7 @@@
static const struct file_operations ftrace_notrace_fops = {
.open = ftrace_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_notrace_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -6033,7 -5981,7 +6033,7 @@@ ftrace_graph_write(struct file *file, c
static const struct file_operations ftrace_graph_fops = {
.open = ftrace_graph_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6041,7 -5989,7 +6041,7 @@@
static const struct file_operations ftrace_graph_notrace_fops = {
.open = ftrace_graph_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6230,27 -6178,6 +6230,27 @@@ struct ftrace_mod_map
unsigned int num_funcs;
};
+static int ftrace_get_trampoline_kallsym(unsigned int symnum,
+ unsigned long *value, char *type,
+ char *name, char *module_name,
+ int *exported)
+{
+ struct ftrace_ops *op;
+
+ list_for_each_entry_rcu(op, &ftrace_ops_trampoline_list, list) {
+ if (!op->trampoline || symnum--)
+ continue;
+ *value = op->trampoline;
+ *type = 't';
+ strlcpy(name, FTRACE_TRAMPOLINE_SYM, KSYM_NAME_LEN);
+ strlcpy(module_name, FTRACE_TRAMPOLINE_MOD, MODULE_NAME_LEN);
+ *exported = 0;
+ return 0;
+ }
+
+ return -ERANGE;
+}
+
#ifdef CONFIG_MODULES
#define next_to_ftrace_page(p) container_of(p, struct ftrace_page, next)
@@@ -6587,7 -6514,6 +6587,7 @@@ int ftrace_mod_get_kallsym(unsigned in
{
struct ftrace_mod_map *mod_map;
struct ftrace_mod_func *mod_func;
+ int ret;
preempt_disable();
list_for_each_entry_rcu(mod_map, &ftrace_mod_maps, list) {
@@@ -6614,10 -6540,8 +6614,10 @@@
WARN_ON(1);
break;
}
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
preempt_enable();
- return -ERANGE;
+ return ret;
}
#else
@@@ -6629,18 -6553,6 +6629,18 @@@ allocate_ftrace_mod_map(struct module *
{
return NULL;
}
+int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name, char *module_name,
+ int *exported)
+{
+ int ret;
+
+ preempt_disable();
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
+ preempt_enable();
+ return ret;
+}
#endif /* CONFIG_MODULES */
struct ftrace_init_func {
@@@ -6821,24 -6733,7 +6821,24 @@@ void __weak arch_ftrace_update_trampoli
static void ftrace_update_trampoline(struct ftrace_ops *ops)
{
+ unsigned long trampoline = ops->trampoline;
+
arch_ftrace_update_trampoline(ops);
+ if (ops->trampoline && ops->trampoline != trampoline &&
+ (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP)) {
+ /* Add to kallsyms before the perf events */
+ ftrace_add_trampoline_to_kallsyms(ops);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size, false,
+ FTRACE_TRAMPOLINE_SYM);
+ /*
+ * Record the perf text poke event after the ksymbol register
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline, NULL, 0,
+ (void *)ops->trampoline,
+ ops->trampoline_size);
+ }
}
void ftrace_init_trace_array(struct trace_array *tr)
@@@ -7411,7 -7306,7 +7411,7 @@@ ftrace_pid_release(struct inode *inode
static const struct file_operations ftrace_pid_fops = {
.open = ftrace_pid_open,
.write = ftrace_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
@@@ -7419,7 -7314,7 +7419,7 @@@
static const struct file_operations ftrace_no_pid_fops = {
.open = ftrace_no_pid_open,
.write = ftrace_no_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
diff --combined kernel/trace/trace.c
index 4aab712f9567,36dbb58680fc..5aa5c01e2fed
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@@ -2003,6 -2003,7 +2003,6 @@@ static void tracing_reset_cpu(struct ar
void tracing_reset_online_cpus(struct array_buffer *buf)
{
struct trace_buffer *buffer = buf->buffer;
- int cpu;
if (!buffer)
return;
@@@ -2014,7 -2015,8 +2014,7 @@@
buf->time_start = buffer_ftrace_now(buf, buf->cpu);
- for_each_online_cpu(cpu)
- ring_buffer_reset_cpu(buffer, cpu);
+ ring_buffer_reset_online_cpus(buffer);
ring_buffer_record_enable(buffer);
}
@@@ -3344,16 -3346,12 +3344,16 @@@ int trace_array_printk(struct trace_arr
int ret;
va_list ap;
- if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
- return 0;
-
if (!tr)
return -ENOENT;
+ /* This is only allowed for created instances */
+ if (tr == &global_trace)
+ return 0;
+
+ if (!(tr->trace_flags & TRACE_ITER_PRINTK))
+ return 0;
+
va_start(ap, fmt);
ret = trace_array_vprintk(tr, ip, fmt, ap);
va_end(ap);
@@@ -4613,7 -4611,7 +4613,7 @@@ loff_t tracing_lseek(struct file *file
static const struct file_operations tracing_fops = {
.open = tracing_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_write_stub,
.llseek = tracing_lseek,
.release = tracing_release,
@@@ -4621,7 -4619,7 +4621,7 @@@
static const struct file_operations show_traces_fops = {
.open = show_traces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = show_traces_release,
};
@@@ -4959,7 -4957,7 +4959,7 @@@ static int tracing_trace_options_open(s
static const struct file_operations tracing_iter_fops = {
.open = tracing_trace_options_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_trace_options_write,
@@@ -5299,7 -5297,7 +5299,7 @@@ static int tracing_saved_tgids_open(str
static const struct file_operations tracing_saved_tgids_fops = {
.open = tracing_saved_tgids_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5378,7 -5376,7 +5378,7 @@@ static int tracing_saved_cmdlines_open(
static const struct file_operations tracing_saved_cmdlines_fops = {
.open = tracing_saved_cmdlines_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5544,7 -5542,7 +5544,7 @@@ static int tracing_eval_map_open(struc
static const struct file_operations tracing_eval_map_fops = {
.open = tracing_eval_map_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5889,7 -5887,7 +5889,7 @@@ int tracing_set_tracer(struct trace_arr
}
/* If trace pipe files are being read, we can't change the tracer */
- if (tr->current_trace->ref) {
+ if (tr->trace_ref) {
ret = -EBUSY;
goto out;
}
@@@ -6105,7 -6103,7 +6105,7 @@@ static int tracing_open_pipe(struct ino
nonseekable_open(inode, filp);
- tr->current_trace->ref++;
+ tr->trace_ref++;
out:
mutex_unlock(&trace_types_lock);
return ret;
@@@ -6124,7 -6122,7 +6124,7 @@@ static int tracing_release_pipe(struct
mutex_lock(&trace_types_lock);
- tr->current_trace->ref--;
+ tr->trace_ref--;
if (iter->trace->pipe_close)
iter->trace->pipe_close(iter);
@@@ -7121,7 -7119,7 +7121,7 @@@ static const struct file_operations tra
static const struct file_operations trace_clock_fops = {
.open = tracing_clock_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_clock_write,
@@@ -7129,7 -7127,7 +7129,7 @@@
static const struct file_operations trace_time_stamp_mode_fops = {
.open = tracing_time_stamp_mode_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
};
@@@ -7137,7 -7135,7 +7137,7 @@@
#ifdef CONFIG_TRACER_SNAPSHOT
static const struct file_operations snapshot_fops = {
.open = tracing_snapshot_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_snapshot_write,
.llseek = tracing_lseek,
.release = tracing_snapshot_release,
@@@ -7393,7 -7391,7 +7393,7 @@@ static int tracing_err_log_release(stru
static const struct file_operations tracing_err_log_fops = {
.open = tracing_err_log_open,
.write = tracing_err_log_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_err_log_release,
};
@@@ -7426,7 -7424,7 +7426,7 @@@ static int tracing_buffers_open(struct
filp->private_data = info;
- tr->current_trace->ref++;
+ tr->trace_ref++;
mutex_unlock(&trace_types_lock);
@@@ -7527,7 -7525,7 +7527,7 @@@ static int tracing_buffers_release(stru
mutex_lock(&trace_types_lock);
- iter->tr->current_trace->ref--;
+ iter->tr->trace_ref--;
__trace_array_put(iter->tr);
@@@ -8735,7 -8733,7 +8735,7 @@@ static int __remove_instance(struct tra
int i;
/* Reference counter for a newly created trace array = 1. */
- if (tr->ref > 1 || (tr->current_trace && tr->current_trace->ref))
+ if (tr->ref > 1 || (tr->current_trace && tr->trace_ref))
return -EBUSY;
list_del(&tr->list);
diff --combined mm/shmem.c
index 66024b1884c1,f019ff500844..d08fa0f4eb9b
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@@ -1673,12 -1673,6 +1673,12 @@@ static int shmem_swapin_page(struct ino
}
wait_on_page_writeback(page);
+ /*
+ * Some architectures may have to restore extra metadata to the
+ * physical page after reading from swap.
+ */
+ arch_swap_restore(swap, page);
+
if (shmem_should_replace_page(page, gfp)) {
error = shmem_replace_page(&page, gfp, info, index);
if (error)
@@@ -2212,9 -2206,6 +2212,9 @@@ static int shmem_mmap(struct file *file
vma->vm_flags &= ~(VM_MAYWRITE);
}
+ /* arm64 - allow memory tagging on RAM-based files */
+ vma->vm_flags |= VM_MTE_ALLOWED;
+
file_accessed(file);
vma->vm_ops = &shmem_vm_ops;
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
@@@ -3765,7 -3756,6 +3765,6 @@@ static const struct file_operations shm
.read_iter = shmem_file_read_iter,
.write_iter = generic_file_write_iter,
.fsync = noop_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = shmem_fallocate,
#endif
diff --combined mm/swapfile.c
index 1d9fb474dada,2e50f52a14c7..7f1587b223ed
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@@ -716,7 -716,6 +716,7 @@@ static void swap_range_free(struct swap
else
swap_slot_free_notify = NULL;
while (offset <= end) {
+ arch_swap_invalidate_page(si->type, offset);
frontswap_invalidate_page(si->type, offset);
if (swap_slot_free_notify)
swap_slot_free_notify(si->bdev, offset);
@@@ -2676,7 -2675,6 +2676,7 @@@ SYSCALL_DEFINE1(swapoff, const char __u
frontswap_map = frontswap_map_get(p);
spin_unlock(&p->lock);
spin_unlock(&swap_lock);
+ arch_swap_invalidate_area(p->type);
frontswap_invalidate_area(p->type);
frontswap_map_set(p, NULL);
mutex_unlock(&swapon_mutex);
@@@ -2837,7 -2835,7 +2837,7 @@@ static int swaps_open(struct inode *ino
static const struct proc_ops swaps_proc_ops = {
.proc_flags = PROC_ENTRY_PERMANENT,
.proc_open = swaps_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = swaps_poll,
@@@ -2931,7 -2929,7 +2931,7 @@@ static int claim_swapfile(struct swap_i
* write only restriction. Hence zoned block devices are not
* suitable for swapping. Disallow them here.
*/
- if (blk_queue_is_zoned(p->bdev->bd_queue))
+ if (blk_queue_is_zoned(p->bdev->bd_disk->queue))
return -EINVAL;
p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
diff --combined net/bluetooth/6lowpan.c
index cff4944d5b66,573ef0c80521..7c492105b8c8
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@@ -50,7 -50,6 +50,7 @@@ static bool enable_6lowpan
/* We are listening incoming connections via this channel
*/
static struct l2cap_chan *listen_chan;
+static DEFINE_MUTEX(set_lock);
struct lowpan_peer {
struct list_head list;
@@@ -1079,14 -1078,12 +1079,14 @@@ static void do_enable_set(struct work_s
enable_6lowpan = set_enable->flag;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
}
listen_chan = bt_6lowpan_listen();
+ mutex_unlock(&set_lock);
kfree(set_enable);
}
@@@ -1138,13 -1135,11 +1138,13 @@@ static ssize_t lowpan_control_write(str
if (ret == -EINVAL)
return ret;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
listen_chan = NULL;
}
+ mutex_unlock(&set_lock);
if (conn) {
struct lowpan_peer *peer;
@@@ -1210,7 -1205,7 +1210,7 @@@ static int lowpan_control_open(struct i
static const struct file_operations lowpan_control_fops = {
.open = lowpan_control_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = lowpan_control_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined net/ipv4/netfilter/ipt_CLUSTERIP.c
index a8b980ad11d4,67472389c9c3..40af4bbf4519
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@@ -3,7 -3,7 +3,7 @@@
* (C) 2003-2004 by Harald Welte <laforge(a)netfilter.org>
* based on ideas of Fabio Olive Leite <olive(a)unixforge.org>
*
- * Development of this code funded by SuSE Linux AG, http://www.suse.com/
+ * Development of this code funded by SuSE Linux AG, https://www.suse.com/
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
@@@ -806,7 -806,7 +806,7 @@@ static ssize_t clusterip_proc_write(str
static const struct proc_ops clusterip_proc_ops = {
.proc_open = clusterip_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = clusterip_proc_write,
.proc_lseek = seq_lseek,
.proc_release = clusterip_proc_release,
diff --combined sound/core/info.c
index 9fec3070f8ba,6e2a35a37b5e..7bddc2b89a42
--- a/sound/core/info.c
+++ b/sound/core/info.c
@@@ -426,7 -426,7 +426,7 @@@ static const struct proc_ops snd_info_t
.proc_release = snd_info_text_entry_release,
.proc_write = snd_info_text_entry_write,
.proc_lseek = seq_lseek,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
};
static struct snd_info_entry *create_subdir(struct module *mod,
@@@ -606,9 -606,7 +606,9 @@@ int snd_info_get_line(struct snd_info_b
{
int c;
- if (snd_BUG_ON(!buffer || !buffer->buffer))
+ if (snd_BUG_ON(!buffer))
+ return 1;
+ if (!buffer->buffer)
return 1;
if (len <= 0 || buffer->stop || buffer->error)
return 1;
--
LinuxNextTracking
1
0
Name of failed tests
====================
master
------
* checkpatch ./net/batman-adv/hard-interface.c
* checkpatch ./net/batman-adv/hard-interface.h
* checkpatch ./net/batman-adv/multicast.c
* checkpatch ./net/batman-adv/soft-interface.c
* checkpatch ./net/batman-adv/sysfs.c
Output of different failed tests
================================
master: checkpatch ./net/batman-adv/hard-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#566: FILE: ./net/batman-adv/hard-interface.c:566:
+ * slave interfaces)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#679: FILE: ./net/batman-adv/hard-interface.c:679:
+ * batadv_master_del_slave() - remove hard_iface from the current master iface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#681: FILE: ./net/batman-adv/hard-interface.c:681:
+ * @master: the master from which slave has to be removed
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#684: FILE: ./net/batman-adv/hard-interface.c:684:
+ * slave is free'd and the master can correctly change its internal state.
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#697: FILE: ./net/batman-adv/hard-interface.c:697:
+ if (master->netdev_ops->ndo_del_slave)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#750: FILE: ./net/batman-adv/hard-interface.c:750:
+ ret = batadv_master_del_slave(hard_iface, master);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#847: FILE: ./net/batman-adv/hard-interface.c:847:
+ * slave interfaces
total: 0 errors, 0 warnings, 13 checks, 1098 lines checked
master: checkpatch ./net/batman-adv/hard-interface.h
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#26: FILE: ./net/batman-adv/hard-interface.h:26:
+ * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#48: FILE: ./net/batman-adv/hard-interface.h:48:
+ * added as slave interface of a batman-adv soft interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#77: FILE: ./net/batman-adv/hard-interface.h:77:
+ * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#86: FILE: ./net/batman-adv/hard-interface.h:86:
+ * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was
total: 0 errors, 0 warnings, 4 checks, 144 lines checked
master: checkpatch ./net/batman-adv/multicast.c
-----------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#575: FILE: ./net/batman-adv/multicast.c:575:
+ * @dev: a bridge slave whose bridge to collect multicast addresses from
total: 0 errors, 0 warnings, 1 checks, 2430 lines checked
master: checkpatch ./net/batman-adv/soft-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#875: FILE: ./net/batman-adv/soft-interface.c:875:
+ * @slave_dev: net_device which should become the slave interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#880: FILE: ./net/batman-adv/soft-interface.c:880:
+static int batadv_softif_slave_add(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#881: FILE: ./net/batman-adv/soft-interface.c:881:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#888: FILE: ./net/batman-adv/soft-interface.c:888:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#907: FILE: ./net/batman-adv/soft-interface.c:907:
+static int batadv_softif_slave_del(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#908: FILE: ./net/batman-adv/soft-interface.c:908:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#913: FILE: ./net/batman-adv/soft-interface.c:913:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
total: 0 errors, 0 warnings, 15 checks, 1180 lines checked
master: checkpatch ./net/batman-adv/sysfs.c
-------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#378: FILE: ./net/batman-adv/sysfs.c:378:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#409: FILE: ./net/batman-adv/sysfs.c:409:
+ if (slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#410: FILE: ./net/batman-adv/sysfs.c:410:
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#425: FILE: ./net/batman-adv/sysfs.c:425:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#429: FILE: ./net/batman-adv/sysfs.c:429:
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
total: 0 errors, 0 warnings, 5 checks, 1272 lines checked
Statistics
==========
maint
-----
Failed tests: 0
Started build tests: 119
Tested Linux versions: 32
Tested configs: 106
master
------
Failed tests: 5
Started build tests: 115
Tested Linux versions: 32
Tested configs: 97
1
0
Name of failed tests
====================
master
------
* checkpatch ./net/batman-adv/hard-interface.c
* checkpatch ./net/batman-adv/hard-interface.h
* checkpatch ./net/batman-adv/multicast.c
* checkpatch ./net/batman-adv/soft-interface.c
* checkpatch ./net/batman-adv/sysfs.c
Output of different failed tests
================================
master: checkpatch ./net/batman-adv/hard-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#566: FILE: ./net/batman-adv/hard-interface.c:566:
+ * slave interfaces)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#679: FILE: ./net/batman-adv/hard-interface.c:679:
+ * batadv_master_del_slave() - remove hard_iface from the current master iface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#681: FILE: ./net/batman-adv/hard-interface.c:681:
+ * @master: the master from which slave has to be removed
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#684: FILE: ./net/batman-adv/hard-interface.c:684:
+ * slave is free'd and the master can correctly change its internal state.
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#697: FILE: ./net/batman-adv/hard-interface.c:697:
+ if (master->netdev_ops->ndo_del_slave)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#750: FILE: ./net/batman-adv/hard-interface.c:750:
+ ret = batadv_master_del_slave(hard_iface, master);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#847: FILE: ./net/batman-adv/hard-interface.c:847:
+ * slave interfaces
total: 0 errors, 0 warnings, 13 checks, 1098 lines checked
master: checkpatch ./net/batman-adv/hard-interface.h
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#26: FILE: ./net/batman-adv/hard-interface.h:26:
+ * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#48: FILE: ./net/batman-adv/hard-interface.h:48:
+ * added as slave interface of a batman-adv soft interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#77: FILE: ./net/batman-adv/hard-interface.h:77:
+ * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#86: FILE: ./net/batman-adv/hard-interface.h:86:
+ * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was
total: 0 errors, 0 warnings, 4 checks, 144 lines checked
master: checkpatch ./net/batman-adv/multicast.c
-----------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#575: FILE: ./net/batman-adv/multicast.c:575:
+ * @dev: a bridge slave whose bridge to collect multicast addresses from
total: 0 errors, 0 warnings, 1 checks, 2430 lines checked
master: checkpatch ./net/batman-adv/soft-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#875: FILE: ./net/batman-adv/soft-interface.c:875:
+ * @slave_dev: net_device which should become the slave interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#880: FILE: ./net/batman-adv/soft-interface.c:880:
+static int batadv_softif_slave_add(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#881: FILE: ./net/batman-adv/soft-interface.c:881:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#888: FILE: ./net/batman-adv/soft-interface.c:888:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#907: FILE: ./net/batman-adv/soft-interface.c:907:
+static int batadv_softif_slave_del(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#908: FILE: ./net/batman-adv/soft-interface.c:908:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#913: FILE: ./net/batman-adv/soft-interface.c:913:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
total: 0 errors, 0 warnings, 15 checks, 1180 lines checked
master: checkpatch ./net/batman-adv/sysfs.c
-------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#378: FILE: ./net/batman-adv/sysfs.c:378:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#409: FILE: ./net/batman-adv/sysfs.c:409:
+ if (slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#410: FILE: ./net/batman-adv/sysfs.c:410:
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#425: FILE: ./net/batman-adv/sysfs.c:425:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#429: FILE: ./net/batman-adv/sysfs.c:429:
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
total: 0 errors, 0 warnings, 5 checks, 1272 lines checked
Statistics
==========
master
------
Failed tests: 5
Started build tests: 115
Tested Linux versions: 32
Tested configs: 96
maint
-----
Failed tests: 0
Started build tests: 117
Tested Linux versions: 31
Tested configs: 105
1
0
[linux-next] LinuxNextTracking branch, master, updated. next-20200717
by batmanï¼ open-mesh.org 18 Jul '20
by batmanï¼ open-mesh.org 18 Jul '20
18 Jul '20
The following commit has been merged in the master branch:
commit 3eb96f5717ecb240769ae5da76a1fdeae2a346de
Merge: 9bdc497f7735eb9bdc5cc2cd7b9aee6f58e5bf97 2750e3608b796cd913564387ffd40f276e50ad21
Author: Stephen Rothwell <sfr(a)canb.auug.org.au>
Date: Fri Jul 17 19:08:11 2020 +1000
Merge remote-tracking branch 'set_fs/set_fs-rw'
# Conflicts:
# arch/powerpc/mm/numa.c
# drivers/acpi/battery.c
# fs/btrfs/file.c
diff --combined Documentation/process/clang-format.rst
index 82676e5a7c6e,7f04493cba4f..57186ae91365
--- a/Documentation/process/clang-format.rst
+++ b/Documentation/process/clang-format.rst
@@@ -32,7 -32,7 +32,7 @@@ Linux distributions for a long time. Se
your repositories. Otherwise, you can either download pre-built
LLVM/clang binaries or build the source code from:
- http://releases.llvm.org/download.html
+ https://releases.llvm.org/download.html
See more information about the tool at:
@@@ -136,7 -136,7 +136,7 @@@ In particular, some very common ones yo
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
@@@ -147,7 -147,7 +147,7 @@@
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
diff --combined arch/arm/mm/alignment.c
index f4bfc1cac91a,412cab88402a..8666935340db
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@@ -164,7 -164,7 +164,7 @@@ static ssize_t alignment_proc_write(str
static const struct proc_ops alignment_proc_ops = {
.proc_open = alignment_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = alignment_proc_write,
@@@ -799,7 -799,7 +799,7 @@@ static int alignment_get_thumb(struct p
static int
do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
- union offset_union uninitialized_var(offset);
+ union offset_union offset;
unsigned long instrptr;
int (*handler)(unsigned long addr, u32 instr, struct pt_regs *regs);
unsigned int type;
diff --combined arch/powerpc/mm/ptdump/hashpagetable.c
index 5b8bd34cd3a1,94a6124f9740..930d9cfd6316
--- a/arch/powerpc/mm/ptdump/hashpagetable.c
+++ b/arch/powerpc/mm/ptdump/hashpagetable.c
@@@ -258,7 -258,7 +258,7 @@@ static int pseries_find(unsigned long e
for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) {
lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes);
- if (lpar_rc != H_SUCCESS)
+ if (lpar_rc)
continue;
for (j = 0; j < 4; j++) {
if (HPTE_V_COMPARE(ptes[j].v, want_v) &&
@@@ -533,7 -533,7 +533,7 @@@ static int ptdump_open(struct inode *in
static const struct file_operations ptdump_fops = {
.open = ptdump_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined arch/powerpc/platforms/pseries/lpar.c
index f71ff2c94efe,2b13a67d60e2..cc174e6bb5da
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@@ -40,7 -40,6 +40,7 @@@
#include <asm/fadump.h>
#include <asm/asm-prototypes.h>
#include <asm/debugfs.h>
+#include <asm/dtl.h>
#include "pseries.h"
@@@ -585,7 -584,7 +585,7 @@@ static int vcpudispatch_stats_open(stru
static const struct proc_ops vcpudispatch_stats_proc_ops = {
.proc_open = vcpudispatch_stats_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = vcpudispatch_stats_write,
.proc_lseek = seq_lseek,
.proc_release = single_release,
@@@ -629,7 -628,7 +629,7 @@@ static int vcpudispatch_stats_freq_open
static const struct proc_ops vcpudispatch_stats_freq_proc_ops = {
.proc_open = vcpudispatch_stats_freq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = vcpudispatch_stats_freq_write,
.proc_lseek = seq_lseek,
.proc_release = single_release,
diff --combined arch/um/kernel/process.c
index 26b5e243d3fc,f3e4bd48f6d5..77caa0202fc3
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@@ -152,7 -152,7 +152,7 @@@ void fork_handler(void
userspace(¤t->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
-int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
+int copy_thread(unsigned long clone_flags, unsigned long sp,
unsigned long arg, struct task_struct * p, unsigned long tls)
{
void (*handler)(void);
@@@ -312,7 -312,7 +312,7 @@@ static ssize_t sysemu_proc_write(struc
static const struct proc_ops sysemu_proc_ops = {
.proc_open = sysemu_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = sysemu_proc_write,
diff --combined arch/x86/mm/pat/set_memory.c
index d1b2a889f035,95b12dd5bf0e..355de93199ee
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@@ -135,7 -135,7 +135,7 @@@ static inline void cpa_inc_2m_checked(v
static inline void cpa_inc_4k_install(void)
{
- cpa_4k_install++;
+ data_race(cpa_4k_install++);
}
static inline void cpa_inc_lp_sameprot(int level)
@@@ -173,7 -173,7 +173,7 @@@ static int cpastats_open(struct inode *
static const struct file_operations cpastats_fops = {
.open = cpastats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined block/blk-mq-debugfs.c
index 3f09bcb8a6fd,4e427fc88a26..5c8333d1ceed
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@@ -404,7 -404,8 +404,7 @@@ static bool hctx_show_busy_rq(struct re
const struct show_busy_params *params = data;
if (rq->mq_hctx == params->hctx)
- __blk_mq_debugfs_rq_show(params->m,
- list_entry_rq(&rq->queuelist));
+ __blk_mq_debugfs_rq_show(params->m, rq);
return true;
}
@@@ -772,7 -773,7 +772,7 @@@ static int blk_mq_debugfs_release(struc
static const struct file_operations blk_mq_debugfs_fops = {
.open = blk_mq_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = blk_mq_debugfs_write,
.llseek = seq_lseek,
.release = blk_mq_debugfs_release,
@@@ -826,6 -827,9 +826,6 @@@ void blk_mq_debugfs_register(struct req
struct blk_mq_hw_ctx *hctx;
int i;
- q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent),
- blk_debugfs_root);
-
debugfs_create_files(q->debugfs_dir, q, blk_mq_debugfs_queue_attrs);
/*
@@@ -856,7 -860,9 +856,7 @@@
void blk_mq_debugfs_unregister(struct request_queue *q)
{
- debugfs_remove_recursive(q->debugfs_dir);
q->sched_debugfs_dir = NULL;
- q->debugfs_dir = NULL;
}
static void blk_mq_debugfs_register_ctx(struct blk_mq_hw_ctx *hctx,
diff --combined drivers/block/nbd.c
index 3ff4054d6834,4c54d366afde..25208ff7166e
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@@ -784,7 -784,6 +784,7 @@@ static void recv_work(struct work_struc
struct nbd_device *nbd = args->nbd;
struct nbd_config *config = nbd->config;
struct nbd_cmd *cmd;
+ struct request *rq;
while (1) {
cmd = nbd_read_stat(nbd, args->index);
@@@ -797,9 -796,7 +797,9 @@@
break;
}
- blk_mq_complete_request(blk_mq_rq_from_pdu(cmd));
+ rq = blk_mq_rq_from_pdu(cmd);
+ if (likely(!blk_should_fake_timeout(rq->q)))
+ blk_mq_complete_request(rq);
}
atomic_dec(&config->recv_threads);
wake_up(&config->recv_wq);
@@@ -1547,7 -1544,7 +1547,7 @@@ static int nbd_dbg_tasks_open(struct in
static const struct file_operations nbd_dbg_tasks_ops = {
.open = nbd_dbg_tasks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1582,7 -1579,7 +1582,7 @@@ static int nbd_dbg_flags_open(struct in
static const struct file_operations nbd_dbg_flags_ops = {
.open = nbd_dbg_flags_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/block/pktcdvd.c
index 4becc1efe775,50c6d6eacb59..c81f637141c0
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@@ -36,7 -36,7 +36,7 @@@
* block device, assembling the pieces to full packets and queuing them to the
* packet I/O scheduler.
*
- * At the top layer there is a custom make_request_fn function that forwards
+ * At the top layer there is a custom ->submit_bio function that forwards
* read requests directly to the iosched queue and puts write requests in the
* unaligned write queue. A kernel thread performs the necessary read
* gathering to convert the unaligned writes to aligned writes and then feeds
@@@ -464,7 -464,7 +464,7 @@@ static int pkt_debugfs_fops_open(struc
static const struct file_operations debug_fops = {
.open = pkt_debugfs_fops_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -913,7 -913,7 +913,7 @@@ static void pkt_iosched_process_queue(s
}
atomic_inc(&pd->cdrw.pending_bios);
- generic_make_request(bio);
+ submit_bio_noacct(bio);
}
}
@@@ -2428,15 -2428,15 +2428,15 @@@ static void pkt_make_request_write(stru
}
}
-static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t pkt_submit_bio(struct bio *bio)
{
struct pktcdvd_device *pd;
char b[BDEVNAME_SIZE];
struct bio *split;
- blk_queue_split(q, &bio);
+ blk_queue_split(&bio);
- pd = q->queuedata;
+ pd = bio->bi_disk->queue->queuedata;
if (!pd) {
pr_err("%s incorrect request queue\n", bio_devname(bio, b));
goto end_io;
@@@ -2480,7 -2480,7 +2480,7 @@@
split = bio;
}
- pkt_make_request_write(q, split);
+ pkt_make_request_write(bio->bi_disk->queue, split);
} while (split != bio);
return BLK_QC_T_NONE;
@@@ -2685,7 -2685,6 +2685,7 @@@ static char *pkt_devnode(struct gendis
static const struct block_device_operations pktcdvd_ops = {
.owner = THIS_MODULE,
+ .submit_bio = pkt_submit_bio,
.open = pkt_open,
.release = pkt_close,
.ioctl = pkt_ioctl,
@@@ -2750,7 -2749,7 +2750,7 @@@ static int pkt_setup_dev(dev_t dev, dev
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
disk->private_data = pd;
- disk->queue = blk_alloc_queue(pkt_make_request, NUMA_NO_NODE);
+ disk->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!disk->queue)
goto out_mem2;
diff --combined drivers/block/rsxx/core.c
index 7e261224ff10,1adfd0f273b4..e631749e14ca
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@@ -209,7 -209,7 +209,7 @@@ static const struct file_operations deb
static const struct file_operations debugfs_stats_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -217,7 -217,7 +217,7 @@@
static const struct file_operations debugfs_pci_regs_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_pci_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -562,15 -562,13 +562,15 @@@ static int rsxx_eeh_frozen(struct pci_d
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
return 0;
@@@ -627,7 -625,7 +627,7 @@@ static int rsxx_eeh_fifo_flush_poll(str
}
static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev,
- enum pci_channel_state error)
+ pci_channel_state_t error)
{
int st;
@@@ -713,15 -711,15 +713,15 @@@ static pci_ers_result_t rsxx_slot_reset
failed_hw_buffers_init:
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev,
- STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev,
- COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
failed_hw_setup:
rsxx_eeh_failure(dev);
diff --combined drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
index 138759dc8190,52c7785c0db1..0bf8f29c5ae8
--- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
+++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c
@@@ -185,8 -185,7 +185,8 @@@ static struct sun8i_ce_alg_template ce_
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -212,8 -211,7 +212,8 @@@
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -238,8 -236,7 +238,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -265,8 -262,7 +265,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -314,7 -310,7 +314,7 @@@ static int sun8i_ce_dbgfs_open(struct i
static const struct file_operations sun8i_ce_debugfs_fops = {
.owner = THIS_MODULE,
.open = sun8i_ce_dbgfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
index 9a23515783a6,fde536469527..d9767e2c84d9
--- a/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
+++ b/drivers/crypto/allwinner/sun8i-ss/sun8i-ss-core.c
@@@ -169,8 -169,7 +169,8 @@@ static struct sun8i_ss_alg_template ss_
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -196,8 -195,7 +196,8 @@@
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -222,8 -220,7 +222,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -249,8 -246,7 +249,8 @@@
.cra_priority = 400,
.cra_blocksize = DES3_EDE_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct sun8i_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -298,7 -294,7 +298,7 @@@ static int sun8i_ss_dbgfs_open(struct i
static const struct file_operations sun8i_ss_debugfs_fops = {
.owner = THIS_MODULE,
.open = sun8i_ss_dbgfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/crypto/amlogic/amlogic-gxl-core.c
index 466552acbbbb,112be2441369..be4dcdb225d8
--- a/drivers/crypto/amlogic/amlogic-gxl-core.c
+++ b/drivers/crypto/amlogic/amlogic-gxl-core.c
@@@ -54,8 -54,7 +54,8 @@@ static struct meson_alg_template mc_alg
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -80,8 -79,7 +80,8 @@@
.cra_priority = 400,
.cra_blocksize = AES_BLOCK_SIZE,
.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK,
+ CRYPTO_ALG_ASYNC | CRYPTO_ALG_ALLOCATES_MEMORY |
+ CRYPTO_ALG_NEED_FALLBACK,
.cra_ctxsize = sizeof(struct meson_cipher_tfm_ctx),
.cra_module = THIS_MODULE,
.cra_alignmask = 0xf,
@@@ -127,7 -125,7 +127,7 @@@ static int meson_dbgfs_open(struct inod
static const struct file_operations meson_debugfs_fops = {
.owner = THIS_MODULE,
.open = meson_dbgfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/crypto/hisilicon/qm.c
index 6527c53b073f,a5c3e21e0fe6..b594dc72807c
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@@ -1054,7 -1054,7 +1054,7 @@@ static int qm_regs_open(struct inode *i
static const struct file_operations qm_regs_fops = {
.owner = THIS_MODULE,
.open = qm_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.release = single_release,
};
@@@ -1064,10 -1064,19 +1064,10 @@@ static ssize_t qm_cmd_read(struct file
char buf[QM_DBG_READ_LEN];
int len;
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
-
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n",
- "Please echo help to cmd to get help information");
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n",
+ "Please echo help to cmd to get help information");
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
-
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static void *qm_ctx_alloc(struct hisi_qm *qm, size_t ctx_size,
@@@ -1732,7 -1741,7 +1732,7 @@@ void hisi_qm_release_qp(struct hisi_qp
}
EXPORT_SYMBOL_GPL(hisi_qm_release_qp);
-static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
+static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
{
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
@@@ -1804,7 -1813,7 +1804,7 @@@ static int qm_start_qp_nolock(struct hi
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
int qp_id = qp->qp_id;
- int pasid = arg;
+ u32 pasid = arg;
int ret;
if (!qm_qp_avail_state(qm, qp, QP_START))
@@@ -2170,12 -2179,8 +2170,12 @@@ static int qm_alloc_uacce(struct hisi_q
.flags = UACCE_DEV_SVA,
.ops = &uacce_qm_ops,
};
+ int ret;
- strncpy(interface.name, pdev->driver->name, sizeof(interface.name));
+ ret = strscpy(interface.name, pdev->driver->name,
+ sizeof(interface.name));
+ if (ret < 0)
+ return -ENAMETOOLONG;
uacce = uacce_alloc(&pdev->dev, &interface);
if (IS_ERR(uacce))
@@@ -2686,12 -2691,24 +2686,12 @@@ static ssize_t qm_status_read(struct fi
{
struct hisi_qm *qm = filp->private_data;
char buf[QM_DBG_READ_LEN];
- int val, cp_len, len;
-
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
+ int val, len;
val = atomic_read(&qm->status.flags);
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- if (!len)
- return -EFAULT;
-
- cp_len = copy_to_user(buffer, buf, len);
- if (cp_len)
- return -EFAULT;
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static const struct file_operations qm_status_fops = {
diff --combined drivers/crypto/qat/qat_common/adf_cfg.c
index ac462796cefc,4b77c6f05b3e..44c7027f8096
--- a/drivers/crypto/qat/qat_common/adf_cfg.c
+++ b/drivers/crypto/qat/qat_common/adf_cfg.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/list.h>
@@@ -66,7 -110,7 +66,7 @@@ static int qat_dev_cfg_open(struct inod
static const struct file_operations qat_dev_cfg_fops = {
.open = qat_dev_cfg_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/crypto/qat/qat_common/adf_transport_debug.c
index 2a2eccbf56ec,6133a869aeb1..659917c848d9
--- a/drivers/crypto/qat/qat_common/adf_transport_debug.c
+++ b/drivers/crypto/qat/qat_common/adf_transport_debug.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
@@@ -98,7 -142,7 +98,7 @@@ static int adf_ring_open(struct inode *
static const struct file_operations adf_ring_debug_fops = {
.open = adf_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
@@@ -209,7 -253,7 +209,7 @@@ static int adf_bank_open(struct inode *
static const struct file_operations adf_bank_debug_fops = {
.open = adf_bank_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/firmware/tegra/bpmp-debugfs.c
index c1bbba9ee93a,3f0a89ce131a..e861d407b7d1
--- a/drivers/firmware/tegra/bpmp-debugfs.c
+++ b/drivers/firmware/tegra/bpmp-debugfs.c
@@@ -4,14 -4,11 +4,14 @@@
*/
#include <linux/debugfs.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <soc/tegra/bpmp.h>
#include <soc/tegra/bpmp-abi.h>
+static DEFINE_MUTEX(bpmp_debug_lock);
+
struct seqbuf {
char *buf;
size_t pos;
@@@ -99,354 -96,6 +99,354 @@@ static const char *get_filename(struct
return filename;
}
+static int mrq_debug_open(struct tegra_bpmp *bpmp, const char *name,
+ uint32_t *fd, uint32_t *len, bool write)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(write ? CMD_DEBUG_OPEN_WO : CMD_DEBUG_OPEN_RO),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ ssize_t sz_name;
+ int err = 0;
+
+ sz_name = strscpy(req.fop.name, name, sizeof(req.fop.name));
+ if (sz_name < 0) {
+ pr_err("File name too large: %s\n", name);
+ return -EINVAL;
+ }
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ *len = resp.fop.datalen;
+ *fd = resp.fop.fd;
+
+ return 0;
+}
+
+static int mrq_debug_close(struct tegra_bpmp *bpmp, uint32_t fd)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_CLOSE),
+ .frd = {
+ .fd = fd,
+ },
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ int err = 0;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name,
+ char *data, size_t sz_data, uint32_t *nbytes)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_READ),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ int remaining, err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 0);
+ if (err)
+ goto out;
+
+ if (len > sz_data) {
+ err = -EFBIG;
+ goto close;
+ }
+
+ req.frd.fd = fd;
+ remaining = len;
+
+ while (remaining > 0) {
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ if (resp.frd.readlen > remaining) {
+ pr_err("%s: read data length invalid\n", __func__);
+ err = -EINVAL;
+ goto close;
+ }
+
+ memcpy(data, resp.frd.data, resp.frd.readlen);
+ data += resp.frd.readlen;
+ remaining -= resp.frd.readlen;
+ }
+
+ *nbytes = len;
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int mrq_debug_write(struct tegra_bpmp *bpmp, const char *name,
+ uint8_t *data, size_t sz_data)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_WRITE)
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ size_t remaining;
+ int err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 1);
+ if (err)
+ goto out;
+
+ if (sz_data > len) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ req.fwr.fd = fd;
+ remaining = sz_data;
+
+ while (remaining > 0) {
+ len = min(remaining, sizeof(req.fwr.data));
+ memcpy(req.fwr.data, data, len);
+ req.fwr.datalen = len;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ data += req.fwr.datalen;
+ remaining -= req.fwr.datalen;
+ }
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int bpmp_debug_show(struct seq_file *m, void *p)
+{
+ struct file *file = m->private;
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ uint32_t nbytes = 0;
+ size_t len;
+ int err;
+
+ len = seq_get_buf(m, &databuf);
+ if (!databuf)
+ return -ENOMEM;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ err = mrq_debug_read(bpmp, filename, databuf, len, &nbytes);
+ if (!err)
+ seq_commit(m, nbytes);
+
+ return err;
+}
+
+static ssize_t bpmp_debug_store(struct file *file, const char __user *buf,
+ size_t count, loff_t *f_pos)
+{
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ ssize_t err;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ databuf = kmalloc(count, GFP_KERNEL);
+ if (!databuf)
+ return -ENOMEM;
+
+ if (copy_from_user(databuf, buf, count)) {
+ err = -EFAULT;
+ goto free_ret;
+ }
+
+ err = mrq_debug_write(bpmp, filename, databuf, count);
+
+free_ret:
+ kfree(databuf);
+
+ return err ?: count;
+}
+
+static int bpmp_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open_size(file, bpmp_debug_show, file, SZ_256K);
+}
+
+static const struct file_operations bpmp_debug_fops = {
+ .open = bpmp_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = bpmp_debug_store,
+ .release = single_release,
+};
+
+static int bpmp_populate_debugfs_inband(struct tegra_bpmp *bpmp,
+ struct dentry *parent,
+ char *ppath)
+{
+ const size_t pathlen = SZ_256;
+ const size_t bufsize = SZ_16K;
+ uint32_t dsize, attrs = 0;
+ struct dentry *dentry;
+ struct seqbuf seqbuf;
+ char *buf, *pathbuf;
+ const char *name;
+ int err = 0;
+
+ if (!bpmp || !parent || !ppath)
+ return -EINVAL;
+
+ buf = kmalloc(bufsize, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pathbuf = kzalloc(pathlen, GFP_KERNEL);
+ if (!pathbuf) {
+ kfree(buf);
+ return -ENOMEM;
+ }
+
+ err = mrq_debug_read(bpmp, ppath, buf, bufsize, &dsize);
+ if (err)
+ goto out;
+
+ seqbuf_init(&seqbuf, buf, dsize);
+
+ while (!seqbuf_eof(&seqbuf)) {
+ err = seqbuf_read_u32(&seqbuf, &attrs);
+ if (err)
+ goto out;
+
+ err = seqbuf_read_str(&seqbuf, &name);
+ if (err < 0)
+ goto out;
+
+ if (attrs & DEBUGFS_S_ISDIR) {
+ size_t len;
+
+ dentry = debugfs_create_dir(name, parent);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
+ goto out;
+ }
+
+ len = strlen(ppath) + strlen(name) + 1;
+ if (len >= pathlen) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ strncpy(pathbuf, ppath, pathlen);
+ strncat(pathbuf, name, strlen(name));
+ strcat(pathbuf, "/");
+
+ err = bpmp_populate_debugfs_inband(bpmp, dentry,
+ pathbuf);
+ if (err < 0)
+ goto out;
+ } else {
+ umode_t mode;
+
+ mode = attrs & DEBUGFS_S_IRUSR ? 0400 : 0;
+ mode |= attrs & DEBUGFS_S_IWUSR ? 0200 : 0;
+ dentry = debugfs_create_file(name, mode, parent, bpmp,
+ &bpmp_debug_fops);
+ if (!dentry) {
+ err = -ENOMEM;
+ goto out;
+ }
+ }
+ }
+
+out:
+ kfree(pathbuf);
+ kfree(buf);
+
+ return err;
+}
+
static int mrq_debugfs_read(struct tegra_bpmp *bpmp,
dma_addr_t name, size_t sz_name,
dma_addr_t data, size_t sz_data,
@@@ -478,8 -127,6 +478,8 @@@
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.fop.nbytes;
@@@ -537,8 -184,6 +537,8 @@@ static int mrq_debugfs_dumpdir(struct t
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.dumpdir.nbytes;
@@@ -557,7 -202,7 +557,7 @@@ static int debugfs_show(struct seq_fil
char buf[256];
const char *filename;
size_t len, nbytes;
- int ret;
+ int err;
filename = get_filename(bpmp, file, buf, sizeof(buf));
if (!filename)
@@@ -571,24 -216,24 +571,24 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
len = strlen(filename);
strncpy(namevirt, filename, namesize);
- ret = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
+ err = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
&nbytes);
- if (!ret)
+ if (!err)
seq_write(m, datavirt, nbytes);
dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret;
+ return err;
}
static int debugfs_open(struct inode *inode, struct file *file)
@@@ -608,7 -253,7 +608,7 @@@ static ssize_t debugfs_store(struct fil
char fnamebuf[256];
const char *filename;
size_t len;
- int ret;
+ int err;
filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
if (!filename)
@@@ -622,7 -267,7 +622,7 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
@@@ -630,11 -275,11 +630,11 @@@
strncpy(namevirt, filename, namesize);
if (copy_from_user(datavirt, buf, count)) {
- ret = -EFAULT;
+ err = -EFAULT;
goto free_databuf;
}
- ret = mrq_debugfs_write(bpmp, namephys, len, dataphys,
+ err = mrq_debugfs_write(bpmp, namephys, len, dataphys,
count);
free_databuf:
@@@ -642,12 -287,12 +642,12 @@@
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret ?: count;
+ return err ?: count;
}
static const struct file_operations debugfs_fops = {
.open = debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.write = debugfs_store,
.release = single_release,
@@@ -705,66 -350,59 +705,66 @@@ static int bpmp_populate_dir(struct teg
return 0;
}
-static int create_debugfs_mirror(struct tegra_bpmp *bpmp, void *buf,
- size_t bufsize, struct dentry *root)
+static int bpmp_populate_debugfs_shmem(struct tegra_bpmp *bpmp)
{
struct seqbuf seqbuf;
+ const size_t sz = SZ_512K;
+ dma_addr_t phys;
+ size_t nbytes;
+ void *virt;
int err;
- bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
- if (!bpmp->debugfs_mirror)
+ virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
+ GFP_KERNEL | GFP_DMA32);
+ if (!virt)
return -ENOMEM;
- seqbuf_init(&seqbuf, buf, bufsize);
- err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+ err = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
if (err < 0) {
- debugfs_remove_recursive(bpmp->debugfs_mirror);
- bpmp->debugfs_mirror = NULL;
+ goto free;
+ } else if (nbytes > sz) {
+ err = -EINVAL;
+ goto free;
}
+ seqbuf_init(&seqbuf, virt, nbytes);
+ err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+free:
+ dma_free_coherent(bpmp->dev, sz, virt, phys);
+
return err;
}
int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
{
- dma_addr_t phys;
- void *virt;
- const size_t sz = SZ_256K;
- size_t nbytes;
- int ret;
struct dentry *root;
+ bool inband;
+ int err;
- if (!tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
+ inband = tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUG);
+
+ if (!inband && !tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
return 0;
root = debugfs_create_dir("bpmp", NULL);
if (!root)
return -ENOMEM;
- virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
- GFP_KERNEL | GFP_DMA32);
- if (!virt) {
- ret = -ENOMEM;
+ bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
+ if (!bpmp->debugfs_mirror) {
+ err = -ENOMEM;
goto out;
}
- ret = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
- if (ret < 0)
- goto free;
+ if (inband)
+ err = bpmp_populate_debugfs_inband(bpmp, bpmp->debugfs_mirror,
+ "/");
+ else
+ err = bpmp_populate_debugfs_shmem(bpmp);
- ret = create_debugfs_mirror(bpmp, virt, nbytes, root);
-free:
- dma_free_coherent(bpmp->dev, sz, virt, phys);
out:
- if (ret < 0)
- debugfs_remove(root);
+ if (err < 0)
+ debugfs_remove_recursive(root);
- return ret;
+ return err;
}
diff --combined drivers/gpio/gpiolib.c
index 80137c1b3cdc,0ca1acff0e37..25ef7ed30a06
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@@ -17,16 -17,20 +17,16 @@@
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/cdev.h>
#include <linux/fs.h>
-#include <linux/uaccess.h>
#include <linux/compat.h>
-#include <linux/anon_inodes.h>
#include <linux/file.h>
-#include <linux/kfifo.h>
-#include <linux/poll.h>
-#include <linux/timekeeping.h>
#include <uapi/linux/gpio.h>
#include "gpiolib.h"
#include "gpiolib-of.h"
#include "gpiolib-acpi.h"
+#include "gpiolib-cdev.h"
+#include "gpiolib-sysfs.h"
#define CREATE_TRACE_POINTS
#include <trace/events/gpio.h>
@@@ -421,6 -425,1105 +421,6 @@@ bool gpiochip_line_is_valid(const struc
}
EXPORT_SYMBOL_GPL(gpiochip_line_is_valid);
-/*
- * GPIO line handle management
- */
-
-/**
- * struct linehandle_state - contains the state of a userspace handle
- * @gdev: the GPIO device the handle pertains to
- * @label: consumer label used to tag descriptors
- * @descs: the GPIO descriptors held by this handle
- * @numdescs: the number of descriptors held in the descs array
- */
-struct linehandle_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *descs[GPIOHANDLES_MAX];
- u32 numdescs;
-};
-
-#define GPIOHANDLE_REQUEST_VALID_FLAGS \
- (GPIOHANDLE_REQUEST_INPUT | \
- GPIOHANDLE_REQUEST_OUTPUT | \
- GPIOHANDLE_REQUEST_ACTIVE_LOW | \
- GPIOHANDLE_REQUEST_BIAS_PULL_UP | \
- GPIOHANDLE_REQUEST_BIAS_PULL_DOWN | \
- GPIOHANDLE_REQUEST_BIAS_DISABLE | \
- GPIOHANDLE_REQUEST_OPEN_DRAIN | \
- GPIOHANDLE_REQUEST_OPEN_SOURCE)
-
-static int linehandle_validate_flags(u32 flags)
-{
- /* Return an error if an unknown flag is set */
- if (flags & ~GPIOHANDLE_REQUEST_VALID_FLAGS)
- return -EINVAL;
-
- /*
- * Do not allow both INPUT & OUTPUT flags to be set as they are
- * contradictory.
- */
- if ((flags & GPIOHANDLE_REQUEST_INPUT) &&
- (flags & GPIOHANDLE_REQUEST_OUTPUT))
- return -EINVAL;
-
- /*
- * Do not allow OPEN_SOURCE & OPEN_DRAIN flags in a single request. If
- * the hardware actually supports enabling both at the same time the
- * electrical result would be disastrous.
- */
- if ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) &&
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* OPEN_DRAIN and OPEN_SOURCE flags only make sense for output mode. */
- if (!(flags & GPIOHANDLE_REQUEST_OUTPUT) &&
- ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE)))
- return -EINVAL;
-
- /* Bias flags only allowed for input or output mode. */
- if (!((flags & GPIOHANDLE_REQUEST_INPUT) ||
- (flags & GPIOHANDLE_REQUEST_OUTPUT)) &&
- ((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (flags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- return 0;
-}
-
-static long linehandle_set_config(struct linehandle_state *lh,
- void __user *ip)
-{
- struct gpiohandle_config gcnf;
- struct gpio_desc *desc;
- int i, ret;
- u32 lflags;
- unsigned long *flagsp;
-
- if (copy_from_user(&gcnf, ip, sizeof(gcnf)))
- return -EFAULT;
-
- lflags = gcnf.flags;
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- for (i = 0; i < lh->numdescs; i++) {
- desc = lh->descs[i];
- flagsp = &desc->flags;
-
- assign_bit(FLAG_ACTIVE_LOW, flagsp,
- lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW);
-
- assign_bit(FLAG_OPEN_DRAIN, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN);
-
- assign_bit(FLAG_OPEN_SOURCE, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE);
-
- assign_bit(FLAG_PULL_UP, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP);
-
- assign_bit(FLAG_PULL_DOWN, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN);
-
- assign_bit(FLAG_BIAS_DISABLE, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE);
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!gcnf.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- return ret;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- return ret;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_CONFIG, desc);
- }
- return 0;
-}
-
-static long linehandle_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct linehandle_state *lh = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
- DECLARE_BITMAP(vals, GPIOHANDLES_MAX);
- int i;
-
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- /* NOTE: It's ok to read values of output lines. */
- int ret = gpiod_get_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- if (ret)
- return ret;
-
- memset(&ghd, 0, sizeof(ghd));
- for (i = 0; i < lh->numdescs; i++)
- ghd.values[i] = test_bit(i, vals);
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- } else if (cmd == GPIOHANDLE_SET_LINE_VALUES_IOCTL) {
- /*
- * All line descriptors were created at once with the same
- * flags so just check if the first one is really output.
- */
- if (!test_bit(FLAG_IS_OUT, &lh->descs[0]->flags))
- return -EPERM;
-
- if (copy_from_user(&ghd, ip, sizeof(ghd)))
- return -EFAULT;
-
- /* Clamp all values to [0,1] */
- for (i = 0; i < lh->numdescs; i++)
- __assign_bit(i, vals, ghd.values[i]);
-
- /* Reuse the array setting function */
- return gpiod_set_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- } else if (cmd == GPIOHANDLE_SET_CONFIG_IOCTL) {
- return linehandle_set_config(lh, ip);
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long linehandle_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return linehandle_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static int linehandle_release(struct inode *inode, struct file *filep)
-{
- struct linehandle_state *lh = filep->private_data;
- struct gpio_device *gdev = lh->gdev;
- int i;
-
- for (i = 0; i < lh->numdescs; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
- kfree(lh);
- put_device(&gdev->dev);
- return 0;
-}
-
-static const struct file_operations linehandle_fileops = {
- .release = linehandle_release,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = linehandle_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = linehandle_ioctl_compat,
-#endif
-};
-
-static int linehandle_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpiohandle_request handlereq;
- struct linehandle_state *lh;
- struct file *file;
- int fd, i, count = 0, ret;
- u32 lflags;
-
- if (copy_from_user(&handlereq, ip, sizeof(handlereq)))
- return -EFAULT;
- if ((handlereq.lines == 0) || (handlereq.lines > GPIOHANDLES_MAX))
- return -EINVAL;
-
- lflags = handlereq.flags;
-
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- lh = kzalloc(sizeof(*lh), GFP_KERNEL);
- if (!lh)
- return -ENOMEM;
- lh->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- handlereq.consumer_label[sizeof(handlereq.consumer_label)-1] = '\0';
- if (strlen(handlereq.consumer_label)) {
- lh->label = kstrdup(handlereq.consumer_label,
- GFP_KERNEL);
- if (!lh->label) {
- ret = -ENOMEM;
- goto out_free_lh;
- }
- }
-
- /* Request each GPIO */
- for (i = 0; i < handlereq.lines; i++) {
- u32 offset = handlereq.lineoffsets[i];
- struct gpio_desc *desc = gpiochip_get_desc(gdev->chip, offset);
-
- if (IS_ERR(desc)) {
- ret = PTR_ERR(desc);
- goto out_free_descs;
- }
-
- ret = gpiod_request(desc, lh->label);
- if (ret)
- goto out_free_descs;
- lh->descs[i] = desc;
- count = i + 1;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN)
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_set_transitory(desc, false);
- if (ret < 0)
- goto out_free_descs;
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!handlereq.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- goto out_free_descs;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_descs;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- dev_dbg(&gdev->dev, "registered chardev handle for line %d\n",
- offset);
- }
- /* Let i point at the last handle */
- i--;
- lh->numdescs = handlereq.lines;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_descs;
- }
-
- file = anon_inode_getfile("gpio-linehandle",
- &linehandle_fileops,
- lh,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- handlereq.fd = fd;
- if (copy_to_user(ip, &handlereq, sizeof(handlereq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- dev_dbg(&gdev->dev, "registered chardev handle for %d lines\n",
- lh->numdescs);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_descs:
- for (i = 0; i < count; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
-out_free_lh:
- kfree(lh);
- put_device(&gdev->dev);
- return ret;
-}
-
-/*
- * GPIO line event management
- */
-
-/**
- * struct lineevent_state - contains the state of a userspace event
- * @gdev: the GPIO device the event pertains to
- * @label: consumer label used to tag descriptors
- * @desc: the GPIO descriptor held by this event
- * @eflags: the event flags this line was requested with
- * @irq: the interrupt that trigger in response to events on this GPIO
- * @wait: wait queue that handles blocking reads of events
- * @events: KFIFO for the GPIO events
- * @timestamp: cache for the timestamp storing it between hardirq
- * and IRQ thread, used to bring the timestamp close to the actual
- * event
- */
-struct lineevent_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *desc;
- u32 eflags;
- int irq;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioevent_data, 16);
- u64 timestamp;
-};
-
-#define GPIOEVENT_REQUEST_VALID_FLAGS \
- (GPIOEVENT_REQUEST_RISING_EDGE | \
- GPIOEVENT_REQUEST_FALLING_EDGE)
-
-static __poll_t lineevent_poll(struct file *filep,
- struct poll_table_struct *wait)
-{
- struct lineevent_state *le = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &le->wait, wait);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&le->events, &le->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-
-static ssize_t lineevent_read(struct file *filep,
- char __user *buf,
- size_t count,
- loff_t *f_ps)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpioevent_data ge;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(ge))
- return -EINVAL;
-
- do {
- spin_lock(&le->wait.lock);
- if (kfifo_is_empty(&le->events)) {
- if (bytes_read) {
- spin_unlock(&le->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&le->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(le->wait,
- !kfifo_is_empty(&le->events));
- if (ret) {
- spin_unlock(&le->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&le->events, &ge, 1);
- spin_unlock(&le->wait.lock);
- if (ret != 1) {
- /*
- * This should never happen - we were holding the lock
- * from the moment we learned the fifo is no longer
- * empty until now.
- */
- ret = -EIO;
- break;
- }
-
- if (copy_to_user(buf + bytes_read, &ge, sizeof(ge)))
- return -EFAULT;
- bytes_read += sizeof(ge);
- } while (count >= bytes_read + sizeof(ge));
-
- return bytes_read;
-}
-
-static int lineevent_release(struct inode *inode, struct file *filep)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpio_device *gdev = le->gdev;
-
- free_irq(le->irq, le);
- gpiod_free(le->desc);
- kfree(le->label);
- kfree(le);
- put_device(&gdev->dev);
- return 0;
-}
-
-static long lineevent_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct lineevent_state *le = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
-
- /*
- * We can get the value for an event line but not set it,
- * because it is input by definition.
- */
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- int val;
-
- memset(&ghd, 0, sizeof(ghd));
-
- val = gpiod_get_value_cansleep(le->desc);
- if (val < 0)
- return val;
- ghd.values[0] = val;
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long lineevent_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return lineevent_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static const struct file_operations lineevent_fileops = {
- .release = lineevent_release,
- .read = lineevent_read,
- .poll = lineevent_poll,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = lineevent_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = lineevent_ioctl_compat,
-#endif
-};
-
-static irqreturn_t lineevent_irq_thread(int irq, void *p)
-{
- struct lineevent_state *le = p;
- struct gpioevent_data ge;
- int ret;
-
- /* Do not leak kernel stack to userspace */
- memset(&ge, 0, sizeof(ge));
-
- /*
- * We may be running from a nested threaded interrupt in which case
- * we didn't get the timestamp from lineevent_irq_handler().
- */
- if (!le->timestamp)
- ge.timestamp = ktime_get_ns();
- else
- ge.timestamp = le->timestamp;
-
- if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
- && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- int level = gpiod_get_value_cansleep(le->desc);
- if (level)
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- else
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE) {
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else {
- return IRQ_NONE;
- }
-
- ret = kfifo_in_spinlocked_noirqsave(&le->events, &ge,
- 1, &le->wait.lock);
- if (ret)
- wake_up_poll(&le->wait, EPOLLIN);
- else
- pr_debug_ratelimited("event FIFO is full - event dropped\n");
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t lineevent_irq_handler(int irq, void *p)
-{
- struct lineevent_state *le = p;
-
- /*
- * Just store the timestamp in hardirq context so we get it as
- * close in time as possible to the actual event.
- */
- le->timestamp = ktime_get_ns();
-
- return IRQ_WAKE_THREAD;
-}
-
-static int lineevent_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpioevent_request eventreq;
- struct lineevent_state *le;
- struct gpio_desc *desc;
- struct file *file;
- u32 offset;
- u32 lflags;
- u32 eflags;
- int fd;
- int ret;
- int irqflags = 0;
-
- if (copy_from_user(&eventreq, ip, sizeof(eventreq)))
- return -EFAULT;
-
- offset = eventreq.lineoffset;
- lflags = eventreq.handleflags;
- eflags = eventreq.eventflags;
-
- desc = gpiochip_get_desc(gdev->chip, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- /* Return an error if a unknown flag is set */
- if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) ||
- (eflags & ~GPIOEVENT_REQUEST_VALID_FLAGS))
- return -EINVAL;
-
- /* This is just wrong: we don't look for events on output lines */
- if ((lflags & GPIOHANDLE_REQUEST_OUTPUT) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (lflags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- le = kzalloc(sizeof(*le), GFP_KERNEL);
- if (!le)
- return -ENOMEM;
- le->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- eventreq.consumer_label[sizeof(eventreq.consumer_label)-1] = '\0';
- if (strlen(eventreq.consumer_label)) {
- le->label = kstrdup(eventreq.consumer_label,
- GFP_KERNEL);
- if (!le->label) {
- ret = -ENOMEM;
- goto out_free_le;
- }
- }
-
- ret = gpiod_request(desc, le->label);
- if (ret)
- goto out_free_label;
- le->desc = desc;
- le->eflags = eflags;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_desc;
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- le->irq = gpiod_to_irq(desc);
- if (le->irq <= 0) {
- ret = -ENODEV;
- goto out_free_desc;
- }
-
- if (eflags & GPIOEVENT_REQUEST_RISING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
- if (eflags & GPIOEVENT_REQUEST_FALLING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
- irqflags |= IRQF_ONESHOT;
-
- INIT_KFIFO(le->events);
- init_waitqueue_head(&le->wait);
-
- /* Request a thread to read the events */
- ret = request_threaded_irq(le->irq,
- lineevent_irq_handler,
- lineevent_irq_thread,
- irqflags,
- le->label,
- le);
- if (ret)
- goto out_free_desc;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_irq;
- }
-
- file = anon_inode_getfile("gpio-event",
- &lineevent_fileops,
- le,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- eventreq.fd = fd;
- if (copy_to_user(ip, &eventreq, sizeof(eventreq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_irq:
- free_irq(le->irq, le);
-out_free_desc:
- gpiod_free(le->desc);
-out_free_label:
- kfree(le->label);
-out_free_le:
- kfree(le);
- put_device(&gdev->dev);
- return ret;
-}
-
-static void gpio_desc_to_lineinfo(struct gpio_desc *desc,
- struct gpioline_info *info)
-{
- struct gpio_chip *gc = desc->gdev->chip;
- bool ok_for_pinctrl;
- unsigned long flags;
-
- /*
- * This function takes a mutex so we must check this before taking
- * the spinlock.
- *
- * FIXME: find a non-racy way to retrieve this information. Maybe a
- * lock common to both frameworks?
- */
- ok_for_pinctrl =
- pinctrl_gpio_can_use_line(gc->base + info->line_offset);
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- if (desc->name) {
- strncpy(info->name, desc->name, sizeof(info->name));
- info->name[sizeof(info->name) - 1] = '\0';
- } else {
- info->name[0] = '\0';
- }
-
- if (desc->label) {
- strncpy(info->consumer, desc->label, sizeof(info->consumer));
- info->consumer[sizeof(info->consumer) - 1] = '\0';
- } else {
- info->consumer[0] = '\0';
- }
-
- /*
- * Userspace only need to know that the kernel is using this GPIO so
- * it can't use it.
- */
- info->flags = 0;
- if (test_bit(FLAG_REQUESTED, &desc->flags) ||
- test_bit(FLAG_IS_HOGGED, &desc->flags) ||
- test_bit(FLAG_USED_AS_IRQ, &desc->flags) ||
- test_bit(FLAG_EXPORT, &desc->flags) ||
- test_bit(FLAG_SYSFS, &desc->flags) ||
- !ok_for_pinctrl)
- info->flags |= GPIOLINE_FLAG_KERNEL;
- if (test_bit(FLAG_IS_OUT, &desc->flags))
- info->flags |= GPIOLINE_FLAG_IS_OUT;
- if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
- info->flags |= GPIOLINE_FLAG_ACTIVE_LOW;
- if (test_bit(FLAG_OPEN_DRAIN, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_DRAIN |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_SOURCE |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_BIAS_DISABLE, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_DISABLE;
- if (test_bit(FLAG_PULL_DOWN, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_DOWN;
- if (test_bit(FLAG_PULL_UP, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_UP;
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-}
-
-struct gpio_chardev_data {
- struct gpio_device *gdev;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioline_info_changed, 32);
- struct notifier_block lineinfo_changed_nb;
- unsigned long *watched_lines;
-};
-
-/*
- * gpio_ioctl() - ioctl handler for the GPIO chardev
- */
-static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
- struct gpio_chip *gc = gdev->chip;
- void __user *ip = (void __user *)arg;
- struct gpio_desc *desc;
- __u32 offset;
- int hwgpio;
-
- /* We fail any subsequent ioctl():s when the chip is gone */
- if (!gc)
- return -ENODEV;
-
- /* Fill in the struct and pass to userspace */
- if (cmd == GPIO_GET_CHIPINFO_IOCTL) {
- struct gpiochip_info chipinfo;
-
- memset(&chipinfo, 0, sizeof(chipinfo));
-
- strncpy(chipinfo.name, dev_name(&gdev->dev),
- sizeof(chipinfo.name));
- chipinfo.name[sizeof(chipinfo.name)-1] = '\0';
- strncpy(chipinfo.label, gdev->label,
- sizeof(chipinfo.label));
- chipinfo.label[sizeof(chipinfo.label)-1] = '\0';
- chipinfo.lines = gdev->ngpio;
- if (copy_to_user(ip, &chipinfo, sizeof(chipinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEHANDLE_IOCTL) {
- return linehandle_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEEVENT_IOCTL) {
- return lineevent_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEINFO_WATCH_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
-
- set_bit(hwgpio, priv->watched_lines);
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_UNWATCH_IOCTL) {
- if (copy_from_user(&offset, ip, sizeof(offset)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (!test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- clear_bit(hwgpio, priv->watched_lines);
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long gpio_ioctl_compat(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- return gpio_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static struct gpio_chardev_data *
-to_gpio_chardev_data(struct notifier_block *nb)
-{
- return container_of(nb, struct gpio_chardev_data, lineinfo_changed_nb);
-}
-
-static int lineinfo_changed_notify(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct gpio_chardev_data *priv = to_gpio_chardev_data(nb);
- struct gpioline_info_changed chg;
- struct gpio_desc *desc = data;
- int ret;
-
- if (!test_bit(gpio_chip_hwgpio(desc), priv->watched_lines))
- return NOTIFY_DONE;
-
- memset(&chg, 0, sizeof(chg));
- chg.info.line_offset = gpio_chip_hwgpio(desc);
- chg.event_type = action;
- chg.timestamp = ktime_get_ns();
- gpio_desc_to_lineinfo(desc, &chg.info);
-
- ret = kfifo_in_spinlocked(&priv->events, &chg, 1, &priv->wait.lock);
- if (ret)
- wake_up_poll(&priv->wait, EPOLLIN);
- else
- pr_debug_ratelimited("lineinfo event FIFO is full - event dropped\n");
-
- return NOTIFY_OK;
-}
-
-static __poll_t lineinfo_watch_poll(struct file *filep,
- struct poll_table_struct *pollt)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &priv->wait, pollt);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&priv->events,
- &priv->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-static ssize_t lineinfo_watch_read(struct file *filep, char __user *buf,
- size_t count, loff_t *off)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- struct gpioline_info_changed event;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(event))
- return -EINVAL;
-
- do {
- spin_lock(&priv->wait.lock);
- if (kfifo_is_empty(&priv->events)) {
- if (bytes_read) {
- spin_unlock(&priv->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&priv->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(priv->wait,
- !kfifo_is_empty(&priv->events));
- if (ret) {
- spin_unlock(&priv->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&priv->events, &event, 1);
- spin_unlock(&priv->wait.lock);
- if (ret != 1) {
- ret = -EIO;
- break;
- /* We should never get here. See lineevent_read(). */
- }
-
- if (copy_to_user(buf + bytes_read, &event, sizeof(event)))
- return -EFAULT;
- bytes_read += sizeof(event);
- } while (count >= bytes_read + sizeof(event));
-
- return bytes_read;
-}
-
-/**
- * gpio_chrdev_open() - open the chardev for ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_open(struct inode *inode, struct file *filp)
-{
- struct gpio_device *gdev = container_of(inode->i_cdev,
- struct gpio_device, chrdev);
- struct gpio_chardev_data *priv;
- int ret = -ENOMEM;
-
- /* Fail on open if the backing gpiochip is gone */
- if (!gdev->chip)
- return -ENODEV;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->watched_lines = bitmap_zalloc(gdev->chip->ngpio, GFP_KERNEL);
- if (!priv->watched_lines)
- goto out_free_priv;
-
- init_waitqueue_head(&priv->wait);
- INIT_KFIFO(priv->events);
- priv->gdev = gdev;
-
- priv->lineinfo_changed_nb.notifier_call = lineinfo_changed_notify;
- ret = atomic_notifier_chain_register(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- if (ret)
- goto out_free_bitmap;
-
- get_device(&gdev->dev);
- filp->private_data = priv;
-
- ret = nonseekable_open(inode, filp);
- if (ret)
- goto out_unregister_notifier;
-
- return ret;
-
-out_unregister_notifier:
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
-out_free_bitmap:
- bitmap_free(priv->watched_lines);
-out_free_priv:
- kfree(priv);
- return ret;
-}
-
-/**
- * gpio_chrdev_release() - close chardev after ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_release(struct inode *inode, struct file *filp)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
-
- bitmap_free(priv->watched_lines);
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- put_device(&gdev->dev);
- kfree(priv);
-
- return 0;
-}
-
-static const struct file_operations gpio_fileops = {
- .release = gpio_chrdev_release,
- .open = gpio_chrdev_open,
- .poll = lineinfo_watch_poll,
- .read = lineinfo_watch_read,
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .unlocked_ioctl = gpio_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = gpio_ioctl_compat,
-#endif
-};
-
static void gpiodevice_release(struct device *dev)
{
struct gpio_device *gdev = dev_get_drvdata(dev);
@@@ -436,10 -1539,17 +436,10 @@@ static int gpiochip_setup_dev(struct gp
{
int ret;
- cdev_init(&gdev->chrdev, &gpio_fileops);
- gdev->chrdev.owner = THIS_MODULE;
- gdev->dev.devt = MKDEV(MAJOR(gpio_devt), gdev->id);
-
- ret = cdev_device_add(&gdev->chrdev, &gdev->dev);
+ ret = gpiolib_cdev_register(gdev, gpio_devt);
if (ret)
return ret;
- chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n",
- MAJOR(gpio_devt), gdev->id);
-
ret = gpiochip_sysfs_register(gdev);
if (ret)
goto err_remove_device;
@@@ -452,7 -1562,7 +452,7 @@@
return 0;
err_remove_device:
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
return ret;
}
@@@ -615,7 -1725,7 +615,7 @@@ int gpiochip_add_data_with_key(struct g
spin_unlock_irqrestore(&gpio_lock, flags);
- ATOMIC_INIT_NOTIFIER_HEAD(&gdev->notifier);
+ BLOCKING_INIT_NOTIFIER_HEAD(&gdev->notifier);
#ifdef CONFIG_PINCTRL
INIT_LIST_HEAD(&gdev->pin_ranges);
@@@ -774,7 -1884,7 +774,7 @@@ void gpiochip_remove(struct gpio_chip *
* be removed, else it will be dangling until the last user is
* gone.
*/
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
put_device(&gdev->dev);
}
EXPORT_SYMBOL_GPL(gpiochip_remove);
@@@ -2049,8 -3159,8 +2049,8 @@@ static bool gpiod_free_commit(struct gp
}
spin_unlock_irqrestore(&gpio_lock, flags);
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_RELEASED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_RELEASED, desc);
return ret;
}
@@@ -2595,9 -3705,10 +2595,9 @@@ int gpiod_get_array_value_complex(bool
bitmap_xor(value_bitmap, value_bitmap,
array_info->invert_mask, array_size);
- if (bitmap_full(array_info->get_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->get_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -2878,9 -3989,10 +2878,9 @@@ int gpiod_set_array_value_complex(bool
gpio_chip_set_multiple(array_info->chip, array_info->set_mask,
value_bitmap);
- if (bitmap_full(array_info->set_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->set_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -3927,8 -5039,8 +3927,8 @@@ struct gpio_desc *__must_check gpiod_ge
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -3995,8 -5107,8 +3995,8 @@@ struct gpio_desc *fwnode_get_named_gpio
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -4417,7 -5529,7 +4417,7 @@@ static int gpiolib_open(struct inode *i
static const struct file_operations gpiolib_operations = {
.owner = THIS_MODULE,
.open = gpiolib_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/gpu/drm/arm/malidp_drv.c
index 69fee05c256c,029a26def9f7..c9e18eeddf2e
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@@ -349,11 -349,11 +349,11 @@@ malidp_verify_afbc_framebuffer_size(str
if (objs->size < afbc_size) {
DRM_DEBUG_KMS("buffer size (%zu) too small for AFBC buffer size = %u\n",
objs->size, afbc_size);
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return false;
}
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return true;
}
@@@ -542,7 -542,7 +542,7 @@@ static ssize_t malidp_debugfs_write(str
static const struct file_operations malidp_debugfs_fops = {
.owner = THIS_MODULE,
.open = malidp_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = malidp_debugfs_write,
.llseek = seq_lseek,
.release = single_release,
@@@ -563,7 -563,16 +563,7 @@@ static void malidp_debugfs_init(struct
static struct drm_driver malidp_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
- .gem_free_object_unlocked = drm_gem_cma_free_object,
- .gem_vm_ops = &drm_gem_cma_vm_ops,
- .dumb_create = malidp_dumb_create,
- .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
- .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
- .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
- .gem_prime_vmap = drm_gem_cma_prime_vmap,
- .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
- .gem_prime_mmap = drm_gem_cma_prime_mmap,
+ DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(malidp_dumb_create),
#ifdef CONFIG_DEBUG_FS
.debugfs_init = malidp_debugfs_init,
#endif
@@@ -657,11 -666,20 +657,11 @@@ static ssize_t core_id_show(struct devi
static DEVICE_ATTR_RO(core_id);
-static int malidp_init_sysfs(struct device *dev)
-{
- int ret = device_create_file(dev, &dev_attr_core_id);
-
- if (ret)
- DRM_ERROR("failed to create device file for core_id\n");
-
- return ret;
-}
-
-static void malidp_fini_sysfs(struct device *dev)
-{
- device_remove_file(dev, &dev_attr_core_id);
-}
+static struct attribute *mali_dp_attrs[] = {
+ &dev_attr_core_id.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(mali_dp);
#define MAX_OUTPUT_CHANNELS 3
@@@ -823,6 -841,10 +823,6 @@@ static int malidp_bind(struct device *d
if (ret < 0)
goto query_hw_fail;
- ret = malidp_init_sysfs(dev);
- if (ret)
- goto init_fail;
-
/* Set the CRTC's port so that the encoder component can find it */
malidp->crtc.port = of_graph_get_port_by_id(dev->of_node, 0);
@@@ -848,6 -870,7 +848,6 @@@
drm->irq_enabled = true;
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
- drm_crtc_vblank_reset(&malidp->crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
goto vblank_fail;
@@@ -879,6 -902,8 +879,6 @@@ irq_init_fail
bind_fail:
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
-init_fail:
- malidp_fini_sysfs(dev);
malidp_fini(drm);
query_hw_fail:
pm_runtime_put(dev);
@@@ -904,13 -929,15 +904,13 @@@ static void malidp_unbind(struct devic
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
pm_runtime_get_sync(dev);
- drm_crtc_vblank_off(&malidp->crtc);
+ drm_atomic_helper_shutdown(drm);
malidp_se_irq_fini(hwdev);
malidp_de_irq_fini(hwdev);
drm->irq_enabled = false;
- drm_atomic_helper_shutdown(drm);
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
- malidp_fini_sysfs(dev);
malidp_fini(drm);
pm_runtime_put(dev);
if (pm_runtime_enabled(dev))
@@@ -1006,7 -1033,6 +1006,7 @@@ static struct platform_driver malidp_pl
.name = "mali-dp",
.pm = &malidp_pm_ops,
.of_match_table = malidp_drm_of_match,
+ .dev_groups = mali_dp_groups,
},
};
diff --combined drivers/gpu/drm/drm_debugfs.c
index 3d7182001004,a0a1a598826f..c4b2c861101f
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@@ -154,7 -154,7 +154,7 @@@ static int drm_debugfs_open(struct inod
static const struct file_operations drm_debugfs_fops = {
.owner = THIS_MODULE,
.open = drm_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -311,13 -311,13 +311,13 @@@ static ssize_t connector_write(struct f
buf[len] = '\0';
- if (!strcmp(buf, "on"))
+ if (sysfs_streq(buf, "on"))
connector->force = DRM_FORCE_ON;
- else if (!strcmp(buf, "digital"))
+ else if (sysfs_streq(buf, "digital"))
connector->force = DRM_FORCE_ON_DIGITAL;
- else if (!strcmp(buf, "off"))
+ else if (sysfs_streq(buf, "off"))
connector->force = DRM_FORCE_OFF;
- else if (!strcmp(buf, "unspecified"))
+ else if (sysfs_streq(buf, "unspecified"))
connector->force = DRM_FORCE_UNSPECIFIED;
else
return -EINVAL;
@@@ -376,28 -376,10 +376,28 @@@ static ssize_t edid_write(struct file *
return (ret) ? ret : len;
}
+/*
+ * Returns the min and max vrr vfreq through the connector's debugfs file.
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
+ */
+static int vrr_range_show(struct seq_file *m, void *data)
+{
+ struct drm_connector *connector = m->private;
+
+ if (connector->status != connector_status_connected)
+ return -ENODEV;
+
+ seq_printf(m, "Min: %u\n", (u8)connector->display_info.monitor_range.min_vfreq);
+ seq_printf(m, "Max: %u\n", (u8)connector->display_info.monitor_range.max_vfreq);
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(vrr_range);
+
static const struct file_operations drm_edid_fops = {
.owner = THIS_MODULE,
.open = edid_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = edid_write
@@@ -407,7 -389,7 +407,7 @@@
static const struct file_operations drm_connector_fops = {
.owner = THIS_MODULE,
.open = connector_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = connector_write
@@@ -431,10 -413,6 +431,10 @@@ void drm_debugfs_connector_add(struct d
/* edid */
debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
&drm_edid_fops);
+
+ /* vrr range */
+ debugfs_create_file("vrr_range", S_IRUGO, root, connector,
+ &vrr_range_fops);
}
void drm_debugfs_connector_remove(struct drm_connector *connector)
diff --combined drivers/gpu/drm/drm_mipi_dbi.c
index 79532b9a324a,d0298376d28a..0e55d8716e3d
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@@ -217,7 -217,7 +217,7 @@@ int mipi_dbi_buf_copy(void *dst, struc
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
if (swap)
- drm_fb_swab16(dst, src, fb, clip);
+ drm_fb_swab(dst, src, fb, clip, !import_attach);
else
drm_fb_memcpy(dst, src, fb, clip);
break;
@@@ -268,7 -268,7 +268,7 @@@ static void mipi_dbi_fb_dirty(struct dr
bool full;
void *tr;
- if (!dbidev->enabled)
+ if (WARN_ON(!fb))
return;
if (!drm_dev_enter(fb->dev, &idx))
@@@ -314,9 -314,6 +314,9 @@@ void mipi_dbi_pipe_update(struct drm_si
struct drm_plane_state *state = pipe->plane.state;
struct drm_rect rect;
+ if (!pipe->crtc.state->active)
+ return;
+
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
mipi_dbi_fb_dirty(state->fb, &rect);
}
@@@ -328,8 -325,9 +328,8 @@@ EXPORT_SYMBOL(mipi_dbi_pipe_update)
* @crtc_state: CRTC state
* @plane_state: Plane state
*
- * This function sets &mipi_dbi->enabled, flushes the whole framebuffer and
- * enables the backlight. Drivers can use this in their
- * &drm_simple_display_pipe_funcs->enable callback.
+ * Flushes the whole framebuffer and enables the backlight. Drivers can use this
+ * in their &drm_simple_display_pipe_funcs->enable callback.
*
* Note: Drivers which don't use mipi_dbi_pipe_update() because they have custom
* framebuffer flushing, can't use this function since they both use the same
@@@ -351,6 -349,7 +351,6 @@@ void mipi_dbi_enable_flush(struct mipi_
if (!drm_dev_enter(&dbidev->drm, &idx))
return;
- dbidev->enabled = true;
mipi_dbi_fb_dirty(fb, &rect);
backlight_enable(dbidev->backlight);
@@@ -391,8 -390,13 +391,8 @@@ void mipi_dbi_pipe_disable(struct drm_s
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
- if (!dbidev->enabled)
- return;
-
DRM_DEBUG_KMS("\n");
- dbidev->enabled = false;
-
if (dbidev->backlight)
backlight_disable(dbidev->backlight);
else
@@@ -1275,7 -1279,7 +1275,7 @@@ static int mipi_dbi_debugfs_command_ope
static const struct file_operations mipi_dbi_debugfs_command_fops = {
.owner = THIS_MODULE,
.open = mipi_dbi_debugfs_command_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mipi_dbi_debugfs_command_write,
diff --combined drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 3644752cc5ec,147448e6f750..067f24c47513
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@@ -125,7 -125,7 +125,7 @@@ static int i915_ips_status(struct seq_f
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
seq_printf(m, "Enabled by kernel parameter: %s\n",
- yesno(i915_modparams.enable_ips));
+ yesno(dev_priv->params.enable_ips));
if (INTEL_GEN(dev_priv) >= 8) {
seq_puts(m, "Currently: unknown\n");
@@@ -1009,7 -1009,7 +1009,7 @@@ static ssize_t i915_ipc_status_write(st
static const struct file_operations i915_ipc_status_fops = {
.owner = THIS_MODULE,
.open = i915_ipc_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_ipc_status_write
@@@ -1099,10 -1099,10 +1099,10 @@@ static void drrs_status_per_crtc(struc
seq_puts(m, "\n\t\t");
if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
- vrefresh = panel->fixed_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->fixed_mode);
} else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
- vrefresh = panel->downclock_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->downclock_mode);
} else {
seq_printf(m, "DRRS_State: Unknown(%d)\n",
drrs->refresh_rate_type);
@@@ -1194,7 -1194,7 +1194,7 @@@ static int i915_dp_mst_info(struct seq_
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct intel_encoder *intel_encoder;
- struct intel_digital_port *intel_dig_port;
+ struct intel_digital_port *dig_port;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
@@@ -1207,14 -1207,14 +1207,14 @@@
if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
continue;
- intel_dig_port = enc_to_dig_port(intel_encoder);
- if (!intel_dig_port->dp.can_mst)
+ dig_port = enc_to_dig_port(intel_encoder);
+ if (!dig_port->dp.can_mst)
continue;
seq_printf(m, "MST Source Port [ENCODER:%d:%s]\n",
- intel_dig_port->base.base.base.id,
- intel_dig_port->base.base.name);
- drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ drm_dp_mst_dump_topology(m, &dig_port->dp.mst_mgr);
}
drm_connector_list_iter_end(&conn_iter);
@@@ -1326,7 -1326,7 +1326,7 @@@ static int i915_displayport_test_active
static const struct file_operations i915_displayport_test_active_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_active_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_displayport_test_active_write
@@@ -1627,7 -1627,7 +1627,7 @@@ static ssize_t cur_wm_latency_write(str
static const struct file_operations i915_pri_wm_latency_fops = {
.owner = THIS_MODULE,
.open = pri_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pri_wm_latency_write
@@@ -1636,7 -1636,7 +1636,7 @@@
static const struct file_operations i915_spr_wm_latency_fops = {
.owner = THIS_MODULE,
.open = spr_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = spr_wm_latency_write
@@@ -1645,7 -1645,7 +1645,7 @@@
static const struct file_operations i915_cur_wm_latency_fops = {
.owner = THIS_MODULE,
.open = cur_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = cur_wm_latency_write
@@@ -1728,7 -1728,7 +1728,7 @@@ static int i915_hpd_storm_ctl_open(stru
static const struct file_operations i915_hpd_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_storm_ctl_write
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t i915_hpd_short_storm_ctl
static const struct file_operations i915_hpd_short_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_short_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_short_storm_ctl_write,
@@@ -2179,7 -2179,7 +2179,7 @@@ static int i915_dsc_fec_support_open(st
static const struct file_operations i915_dsc_fec_support_fops = {
.owner = THIS_MODULE,
.open = i915_dsc_fec_support_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_dsc_fec_support_write
@@@ -2218,8 -2218,7 +2218,8 @@@ int intel_connector_debugfs_add(struct
}
if (INTEL_GEN(dev_priv) >= 10 &&
- (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+ ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
+ !to_intel_connector(connector)->mst_port) ||
connector->connector_type == DRM_MODE_CONNECTOR_eDP))
debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
connector, &i915_dsc_fec_support_fops);
diff --combined drivers/gpu/drm/i915/i915_debugfs_params.c
index 4e2b077692cb,58ef14b028ea..19518e805bd6
--- a/drivers/gpu/drm/i915/i915_debugfs_params.c
+++ b/drivers/gpu/drm/i915/i915_debugfs_params.c
@@@ -48,7 -48,7 +48,7 @@@ static ssize_t i915_param_int_write(str
static const struct file_operations i915_param_int_fops = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_int_write,
.llseek = default_llseek,
.release = single_release,
@@@ -57,7 -57,7 +57,7 @@@
static const struct file_operations i915_param_int_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -101,7 -101,7 +101,7 @@@ static ssize_t i915_param_uint_write(st
static const struct file_operations i915_param_uint_fops = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_uint_write,
.llseek = default_llseek,
.release = single_release,
@@@ -110,7 -110,7 +110,7 @@@
static const struct file_operations i915_param_uint_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -138,6 -138,9 +138,6 @@@ static ssize_t i915_param_charp_write(s
char **s = m->private;
char *new, *old;
- /* FIXME: remove locking after params aren't the module params */
- kernel_param_lock(THIS_MODULE);
-
old = *s;
new = strndup_user(ubuf, PAGE_SIZE);
if (IS_ERR(new)) {
@@@ -149,13 -152,15 +149,13 @@@
kfree(old);
out:
- kernel_param_unlock(THIS_MODULE);
-
return len;
}
static const struct file_operations i915_param_charp_fops = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_charp_write,
.llseek = default_llseek,
.release = single_release,
@@@ -164,7 -169,7 +164,7 @@@
static const struct file_operations i915_param_charp_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -224,7 -229,7 +224,7 @@@ _i915_param_create_file(struct dentry *
struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
{
struct drm_minor *minor = i915->drm.primary;
- struct i915_params *params = &i915_modparams;
+ struct i915_params *params = &i915->params;
struct dentry *dir;
dir = debugfs_create_dir("i915_params", minor->debugfs_root);
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 969d95aa873c,2fa8d07979eb..98de42315f21
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@@ -389,7 -389,7 +389,7 @@@ static void dpu_crtc_frame_event_cb(voi
spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
if (!fevent) {
- DRM_ERROR("crtc%d event %d overflow\n", crtc->base.id, event);
+ DRM_ERROR_RATELIMITED("crtc%d event %d overflow\n", crtc->base.id, event);
return;
}
@@@ -1256,7 -1256,7 +1256,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -1283,7 -1283,7 +1283,7 @@@ static int _dpu_crtc_init_debugfs(struc
static const struct file_operations debugfs_status_fops = {
.open = _dpu_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 6f1e2b189126,40a7ce44f717..fa6524561dbc
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@@ -208,36 -208,6 +208,36 @@@ struct dpu_encoder_virt
#define to_dpu_encoder_virt(x) container_of(x, struct dpu_encoder_virt, base)
+static u32 dither_matrix[DITHER_MATRIX_SZ] = {
+ 15, 7, 13, 5, 3, 11, 1, 9, 12, 4, 14, 6, 0, 8, 2, 10
+};
+
+static void _dpu_encoder_setup_dither(struct dpu_encoder_phys *phys)
+{
+ struct dpu_hw_dither_cfg dither_cfg = { 0 };
+
+ if (!phys->hw_pp || !phys->hw_pp->ops.setup_dither)
+ return;
+
+ switch (phys->connector->display_info.bpc) {
+ case 6:
+ dither_cfg.c0_bitdepth = 6;
+ dither_cfg.c1_bitdepth = 6;
+ dither_cfg.c2_bitdepth = 6;
+ dither_cfg.c3_bitdepth = 6;
+ dither_cfg.temporal_en = 0;
+ break;
+ default:
+ phys->hw_pp->ops.setup_dither(phys->hw_pp, NULL);
+ return;
+ }
+
+ memcpy(&dither_cfg.matrix, dither_matrix,
+ sizeof(u32) * DITHER_MATRIX_SZ);
+
+ phys->hw_pp->ops.setup_dither(phys->hw_pp, &dither_cfg);
+}
+
void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc,
enum dpu_intr_idx intr_idx)
{
@@@ -529,6 -499,23 +529,6 @@@ void dpu_encoder_helper_split_config
}
}
-static void _dpu_encoder_adjust_mode(struct drm_connector *connector,
- struct drm_display_mode *adj_mode)
-{
- struct drm_display_mode *cur_mode;
-
- if (!connector || !adj_mode)
- return;
-
- list_for_each_entry(cur_mode, &connector->modes, head) {
- if (cur_mode->vdisplay == adj_mode->vdisplay &&
- cur_mode->hdisplay == adj_mode->hdisplay &&
- drm_mode_vrefresh(cur_mode) == drm_mode_vrefresh(adj_mode)) {
- adj_mode->private_flags |= cur_mode->private_flags;
- }
- }
-}
-
static struct msm_display_topology dpu_encoder_get_topology(
struct dpu_encoder_virt *dpu_enc,
struct dpu_kms *dpu_kms,
@@@ -602,6 -589,15 +602,6 @@@ static int dpu_encoder_virt_atomic_chec
global_state = dpu_kms_get_existing_global_state(dpu_kms);
trace_dpu_enc_atomic_check(DRMID(drm_enc));
- /*
- * display drivers may populate private fields of the drm display mode
- * structure while registering possible modes of a connector with DRM.
- * These private fields are not populated back while DRM invokes
- * the mode_set callbacks. This module retrieves and populates the
- * private fields of the given mode.
- */
- _dpu_encoder_adjust_mode(conn_state->connector, adj_mode);
-
/* perform atomic check on the first physical encoder (master) */
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
@@@ -634,7 -630,8 +634,7 @@@
}
}
- trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags,
- adj_mode->private_flags);
+ trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags);
return ret;
}
@@@ -1089,7 -1086,6 +1089,7 @@@ static void _dpu_encoder_virt_enable_he
struct dpu_encoder_virt *dpu_enc = NULL;
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
+ int i;
if (!drm_enc || !drm_enc->dev) {
DPU_ERROR("invalid parameters\n");
@@@ -1112,14 -1108,6 +1112,14 @@@
dpu_kms->catalog);
_dpu_encoder_update_vsync_source(dpu_enc, &dpu_enc->disp_info);
+
+ if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI) {
+ for (i = 0; i < dpu_enc->num_phys_encs; i++) {
+ struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
+
+ _dpu_encoder_setup_dither(phys);
+ }
+ }
}
void dpu_encoder_virt_runtime_resume(struct drm_encoder *drm_enc)
@@@ -1897,7 -1885,7 +1897,7 @@@ static int _dpu_encoder_init_debugfs(st
static const struct file_operations debugfs_status_fops = {
.open = _dpu_encoder_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index f2bbce42c760,282424a27262..d4ee35225ca6
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@@ -10,7 -10,6 +10,7 @@@
#include <linux/debugfs.h>
#include <linux/dma-buf.h>
#include <linux/of_irq.h>
+#include <linux/pm_opp.h>
#include <drm/drm_crtc.h>
#include <drm/drm_file.h>
@@@ -108,7 -107,7 +108,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -177,7 -176,7 +177,7 @@@ static int dpu_debugfs_open_regset32(st
static const struct file_operations dpu_fops_regset32 = {
.open = dpu_debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1026,24 -1025,11 +1026,24 @@@ static int dpu_bind(struct device *dev
if (!dpu_kms)
return -ENOMEM;
+ dpu_kms->opp_table = dev_pm_opp_set_clkname(dev, "core");
+ if (IS_ERR(dpu_kms->opp_table))
+ return PTR_ERR(dpu_kms->opp_table);
+ /* OPP table is optional */
+ ret = dev_pm_opp_of_add_table(dev);
+ if (!ret) {
+ dpu_kms->has_opp_table = true;
+ } else if (ret != -ENODEV) {
+ dev_err(dev, "invalid OPP table in device tree\n");
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
+ return ret;
+ }
+
mp = &dpu_kms->mp;
ret = msm_dss_parse_clock(pdev, mp);
if (ret) {
DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
- return ret;
+ goto err;
}
platform_set_drvdata(pdev, dpu_kms);
@@@ -1057,11 -1043,6 +1057,11 @@@
priv->kms = &dpu_kms->base;
return ret;
+err:
+ if (dpu_kms->has_opp_table)
+ dev_pm_opp_of_remove_table(dev);
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
+ return ret;
}
static void dpu_unbind(struct device *dev, struct device *master, void *data)
@@@ -1076,10 -1057,6 +1076,10 @@@
if (dpu_kms->rpm_enabled)
pm_runtime_disable(&pdev->dev);
+
+ if (dpu_kms->has_opp_table)
+ dev_pm_opp_of_remove_table(dev);
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
}
static const struct component_ops dpu_ops = {
@@@ -1105,8 -1082,6 +1105,8 @@@ static int __maybe_unused dpu_runtime_s
struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
struct dss_module_power *mp = &dpu_kms->mp;
+ /* Drop the performance state vote */
+ dev_pm_opp_set_rate(dev, 0);
rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
if (rc)
DPU_ERROR("clock disable failed rc:%d\n", rc);
@@@ -1140,8 -1115,6 +1140,8 @@@ static int __maybe_unused dpu_runtime_r
static const struct dev_pm_ops dpu_pm_ops = {
SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
static const struct of_device_id dpu_dt_match[] = {
diff --combined drivers/hwmon/dell-smm-hwmon.c
index ec448f5f2dc3,29ac38842962..976acbbe8ce9
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@@ -597,7 -597,7 +597,7 @@@ static int i8k_open_fs(struct inode *in
static const struct proc_ops i8k_proc_ops = {
.proc_open = i8k_open_fs,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_ioctl = i8k_ioctl,
@@@ -1187,14 -1187,6 +1187,14 @@@ static struct dmi_system_id i8k_whiteli
},
.driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
},
+ {
+ .ident = "Dell Latitude 5480",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 5480"),
+ },
+ .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
+ },
{
.ident = "Dell Latitude E6440",
.matches = {
diff --combined drivers/md/md.c
index bc06f046d9e7,0bae6c1523ce..5b6d46741baa
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@@ -199,7 -199,7 +199,7 @@@ static int rdevs_init_serial(struct mdd
static int rdev_need_serial(struct md_rdev *rdev)
{
return (rdev && rdev->mddev->bitmap_info.max_write_behind > 0 &&
- rdev->bdev->bd_queue->nr_hw_queues != 1 &&
+ rdev->bdev->bd_disk->queue->nr_hw_queues != 1 &&
test_bit(WriteMostly, &rdev->flags));
}
@@@ -463,46 -463,24 +463,46 @@@ check_suspended
}
EXPORT_SYMBOL(md_handle_request);
-static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
+struct md_io {
+ struct mddev *mddev;
+ bio_end_io_t *orig_bi_end_io;
+ void *orig_bi_private;
+ unsigned long start_time;
+};
+
+static void md_end_io(struct bio *bio)
+{
+ struct md_io *md_io = bio->bi_private;
+ struct mddev *mddev = md_io->mddev;
+
+ disk_end_io_acct(mddev->gendisk, bio_op(bio), md_io->start_time);
+
+ bio->bi_end_io = md_io->orig_bi_end_io;
+ bio->bi_private = md_io->orig_bi_private;
+
+ mempool_free(md_io, &mddev->md_io_pool);
+
+ if (bio->bi_end_io)
+ bio->bi_end_io(bio);
+}
+
+static blk_qc_t md_submit_bio(struct bio *bio)
{
const int rw = bio_data_dir(bio);
- const int sgrp = op_stat_group(bio_op(bio));
struct mddev *mddev = bio->bi_disk->private_data;
- unsigned int sectors;
- if (unlikely(test_bit(MD_BROKEN, &mddev->flags)) && (rw == WRITE)) {
+ if (mddev == NULL || mddev->pers == NULL) {
bio_io_error(bio);
return BLK_QC_T_NONE;
}
- blk_queue_split(q, &bio);
-
- if (mddev == NULL || mddev->pers == NULL) {
+ if (unlikely(test_bit(MD_BROKEN, &mddev->flags)) && (rw == WRITE)) {
bio_io_error(bio);
return BLK_QC_T_NONE;
}
+
+ blk_queue_split(&bio);
+
if (mddev->ro == 1 && unlikely(rw == WRITE)) {
if (bio_sectors(bio) != 0)
bio->bi_status = BLK_STS_IOERR;
@@@ -510,27 -488,21 +510,27 @@@
return BLK_QC_T_NONE;
}
- /*
- * save the sectors now since our bio can
- * go away inside make_request
- */
- sectors = bio_sectors(bio);
+ if (bio->bi_end_io != md_end_io) {
+ struct md_io *md_io;
+
+ md_io = mempool_alloc(&mddev->md_io_pool, GFP_NOIO);
+ md_io->mddev = mddev;
+ md_io->orig_bi_end_io = bio->bi_end_io;
+ md_io->orig_bi_private = bio->bi_private;
+
+ bio->bi_end_io = md_end_io;
+ bio->bi_private = md_io;
+
+ md_io->start_time = disk_start_io_acct(mddev->gendisk,
+ bio_sectors(bio),
+ bio_op(bio));
+ }
+
/* bio could be mergeable after passing to underlayer */
bio->bi_opf &= ~REQ_NOMERGE;
md_handle_request(mddev, bio);
- part_stat_lock();
- part_stat_inc(&mddev->gendisk->part0, ios[sgrp]);
- part_stat_add(&mddev->gendisk->part0, sectors[sgrp], sectors);
- part_stat_unlock();
-
return BLK_QC_T_NONE;
}
@@@ -577,6 -549,26 +577,6 @@@ void mddev_resume(struct mddev *mddev
}
EXPORT_SYMBOL_GPL(mddev_resume);
-int mddev_congested(struct mddev *mddev, int bits)
-{
- struct md_personality *pers = mddev->pers;
- int ret = 0;
-
- rcu_read_lock();
- if (mddev->suspended)
- ret = 1;
- else if (pers && pers->congested)
- ret = pers->congested(mddev, bits);
- rcu_read_unlock();
- return ret;
-}
-EXPORT_SYMBOL_GPL(mddev_congested);
-static int md_congested(void *data, int bits)
-{
- struct mddev *mddev = data;
- return mddev_congested(mddev, bits);
-}
-
/*
* Generic flush handling for md
*/
@@@ -2452,10 -2444,6 +2452,10 @@@ static int bind_rdev_to_array(struct md
if (sysfs_create_link(&rdev->kobj, ko, "block"))
/* failure here is OK */;
rdev->sysfs_state = sysfs_get_dirent_safe(rdev->kobj.sd, "state");
+ rdev->sysfs_unack_badblocks =
+ sysfs_get_dirent_safe(rdev->kobj.sd, "unacknowledged_bad_blocks");
+ rdev->sysfs_badblocks =
+ sysfs_get_dirent_safe(rdev->kobj.sd, "bad_blocks");
list_add_rcu(&rdev->same_set, &mddev->disks);
bd_link_disk_holder(rdev->bdev, mddev->gendisk);
@@@ -2489,11 -2477,7 +2489,11 @@@ static void unbind_rdev_from_array(stru
rdev->mddev = NULL;
sysfs_remove_link(&rdev->kobj, "block");
sysfs_put(rdev->sysfs_state);
+ sysfs_put(rdev->sysfs_unack_badblocks);
+ sysfs_put(rdev->sysfs_badblocks);
rdev->sysfs_state = NULL;
+ rdev->sysfs_unack_badblocks = NULL;
+ rdev->sysfs_badblocks = NULL;
rdev->badblocks.count = 0;
/* We need to delay this, otherwise we can deadlock when
* writing to 'remove' to "dev/state". We also need
@@@ -2838,7 -2822,7 +2838,7 @@@ rewrite
goto repeat;
wake_up(&mddev->sb_wait);
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
rdev_for_each(rdev, mddev) {
if (test_and_clear_bit(FaultRecorded, &rdev->flags))
@@@ -4091,7 -4075,7 +4091,7 @@@ level_store(struct mddev *mddev, const
mddev_resume(mddev);
if (!mddev->thread)
md_update_sb(mddev, 1);
- sysfs_notify(&mddev->kobj, NULL, "level");
+ sysfs_notify_dirent_safe(mddev->sysfs_level);
md_new_event(mddev);
rv = len;
out_unlock:
@@@ -4844,7 -4828,7 +4844,7 @@@ action_store(struct mddev *mddev, cons
}
if (err)
return err;
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
} else {
if (cmd_match(page, "check"))
set_bit(MD_RECOVERY_CHECK, &mddev->recovery);
@@@ -5550,13 -5534,6 +5550,13 @@@ static void md_free(struct kobject *ko
if (mddev->sysfs_state)
sysfs_put(mddev->sysfs_state);
+ if (mddev->sysfs_completed)
+ sysfs_put(mddev->sysfs_completed);
+ if (mddev->sysfs_degraded)
+ sysfs_put(mddev->sysfs_degraded);
+ if (mddev->sysfs_level)
+ sysfs_put(mddev->sysfs_level);
+
if (mddev->gendisk)
del_gendisk(mddev->gendisk);
@@@ -5568,7 -5545,6 +5568,7 @@@
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
+ mempool_exit(&mddev->md_io_pool);
kfree(mddev);
}
@@@ -5664,13 -5640,8 +5664,13 @@@ static int md_alloc(dev_t dev, char *na
*/
mddev->hold_active = UNTIL_STOP;
+ error = mempool_init_kmalloc_pool(&mddev->md_io_pool, BIO_POOL_SIZE,
+ sizeof(struct md_io));
+ if (error)
+ goto abort;
+
error = -ENOMEM;
- mddev->queue = blk_alloc_queue(md_make_request, NUMA_NO_NODE);
+ mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!mddev->queue)
goto abort;
@@@ -5699,7 -5670,6 +5699,7 @@@
* remove it now.
*/
disk->flags |= GENHD_FL_EXT_DEVT;
+ disk->events |= DISK_EVENT_MEDIA_CHANGE;
mddev->gendisk = disk;
/* As soon as we call add_disk(), another thread could get
* through to md_open, so make sure it doesn't get too far
@@@ -5725,9 -5695,6 +5725,9 @@@
if (!error && mddev->kobj.sd) {
kobject_uevent(&mddev->kobj, KOBJ_ADD);
mddev->sysfs_state = sysfs_get_dirent_safe(mddev->kobj.sd, "array_state");
+ mddev->sysfs_completed = sysfs_get_dirent_safe(mddev->kobj.sd, "sync_completed");
+ mddev->sysfs_degraded = sysfs_get_dirent_safe(mddev->kobj.sd, "degraded");
+ mddev->sysfs_level = sysfs_get_dirent_safe(mddev->kobj.sd, "level");
}
mddev_put(mddev);
return error;
@@@ -5997,6 -5964,8 +5997,6 @@@ int md_run(struct mddev *mddev
blk_queue_flag_set(QUEUE_FLAG_NONROT, mddev->queue);
else
blk_queue_flag_clear(QUEUE_FLAG_NONROT, mddev->queue);
- mddev->queue->backing_dev_info->congested_data = mddev;
- mddev->queue->backing_dev_info->congested_fn = md_congested;
}
if (pers->sync_request) {
if (mddev->kobj.sd &&
@@@ -6080,7 -6049,7 +6080,7 @@@ static int do_md_run(struct mddev *mdde
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
sysfs_notify_dirent_safe(mddev->sysfs_state);
sysfs_notify_dirent_safe(mddev->sysfs_action);
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
out:
clear_bit(MD_NOT_READY, &mddev->flags);
return err;
@@@ -6381,6 -6350,7 +6381,6 @@@ static int do_md_stop(struct mddev *mdd
__md_stop_writes(mddev);
__md_stop(mddev);
- mddev->queue->backing_dev_info->congested_fn = NULL;
/* tell userspace to handle 'inactive' */
sysfs_notify_dirent_safe(mddev->sysfs_state);
@@@ -7836,21 -7806,23 +7836,21 @@@ static void md_release(struct gendisk *
mddev_put(mddev);
}
-static int md_media_changed(struct gendisk *disk)
-{
- struct mddev *mddev = disk->private_data;
-
- return mddev->changed;
-}
-
-static int md_revalidate(struct gendisk *disk)
+static unsigned int md_check_events(struct gendisk *disk, unsigned int clearing)
{
struct mddev *mddev = disk->private_data;
+ unsigned int ret = 0;
+ if (mddev->changed)
+ ret = DISK_EVENT_MEDIA_CHANGE;
mddev->changed = 0;
- return 0;
+ return ret;
}
+
static const struct block_device_operations md_fops =
{
.owner = THIS_MODULE,
+ .submit_bio = md_submit_bio,
.open = md_open,
.release = md_release,
.ioctl = md_ioctl,
@@@ -7858,7 -7830,8 +7858,7 @@@
.compat_ioctl = md_compat_ioctl,
#endif
.getgeo = md_getgeo,
- .media_changed = md_media_changed,
- .revalidate_disk= md_revalidate,
+ .check_events = md_check_events,
};
static int md_thread(void *arg)
@@@ -8328,7 -8301,7 +8328,7 @@@ static __poll_t mdstat_poll(struct fil
static const struct proc_ops mdstat_proc_ops = {
.proc_open = md_seq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = mdstat_poll,
@@@ -8794,7 -8767,7 +8794,7 @@@ void md_do_sync(struct md_thread *threa
} else
mddev->curr_resync = 3; /* no longer delayed */
mddev->curr_resync_completed = j;
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
md_new_event(mddev);
update_time = jiffies;
@@@ -8822,7 -8795,7 +8822,7 @@@
mddev->recovery_cp = j;
update_time = jiffies;
set_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags);
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
}
while (j >= mddev->resync_max &&
@@@ -8929,7 -8902,7 +8929,7 @@@
!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
mddev->curr_resync > 3) {
mddev->curr_resync_completed = mddev->curr_resync;
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
}
mddev->pers->sync_request(mddev, max_sectors, &skipped);
@@@ -9059,7 -9032,7 +9059,7 @@@ static int remove_and_add_spares(struc
}
if (removed && mddev->kobj.sd)
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
if (this && removed)
goto no_add;
@@@ -9342,7 -9315,8 +9342,7 @@@ void md_reap_sync_thread(struct mddev *
/* success...*/
/* activate any spares */
if (mddev->pers->spare_active(mddev)) {
- sysfs_notify(&mddev->kobj, NULL,
- "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
}
}
@@@ -9432,7 -9406,8 +9432,7 @@@ int rdev_set_badblocks(struct md_rdev *
if (rv == 0) {
/* Make sure they get written out promptly */
if (test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify(&rdev->kobj, NULL,
- "unacknowledged_bad_blocks");
+ sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
sysfs_notify_dirent_safe(rdev->sysfs_state);
set_mask_bits(&mddev->sb_flags, 0,
BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
@@@ -9453,7 -9428,7 +9453,7 @@@ int rdev_clear_badblocks(struct md_rde
s += rdev->data_offset;
rv = badblocks_clear(&rdev->badblocks, s, sectors);
if ((rv == 0) && test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify(&rdev->kobj, NULL, "bad_blocks");
+ sysfs_notify_dirent_safe(rdev->sysfs_badblocks);
return rv;
}
EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
@@@ -9683,7 -9658,7 +9683,7 @@@ static int read_rdev(struct mddev *mdde
if (rdev->recovery_offset == MaxSector &&
!test_bit(In_sync, &rdev->flags) &&
mddev->pers->spare_active(mddev))
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
put_page(swapout);
return 0;
diff --combined drivers/media/cec/core/cec-core.c
index c599cd94dd62,87e856788e0b..6edb1e09f9fa
--- a/drivers/media/cec/core/cec-core.c
+++ b/drivers/media/cec/core/cec-core.c
@@@ -226,7 -226,7 +226,7 @@@ static int cec_error_inj_open(struct in
static const struct file_operations cec_error_inj_fops = {
.open = cec_error_inj_open,
.write = cec_error_inj_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -265,6 -265,7 +265,6 @@@ struct cec_adapter *cec_allocate_adapte
adap->sequence = 0;
adap->ops = ops;
adap->priv = priv;
- memset(adap->phys_addrs, 0xff, sizeof(adap->phys_addrs));
mutex_init(&adap->lock);
INIT_LIST_HEAD(&adap->transmit_queue);
INIT_LIST_HEAD(&adap->wait_queue);
diff --combined drivers/memory/tegra/tegra124-emc.c
index ba5cb1f4dfc2,794431b2102c..a98de2c943d1
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@@ -984,7 -984,6 +984,7 @@@ static int tegra_emc_load_timings_from_
static const struct of_device_id tegra_emc_of_match[] = {
{ .compatible = "nvidia,tegra124-emc" },
+ { .compatible = "nvidia,tegra132-emc" },
{}
};
@@@ -1069,7 -1068,7 +1069,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1179,11 -1178,11 +1179,11 @@@ static void emc_debugfs_init(struct dev
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root, emc,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc,
&tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
diff --combined drivers/memory/tegra/tegra186-emc.c
index 8478f59db432,1445ab51af6a..1d0a12164fe7
--- a/drivers/memory/tegra/tegra186-emc.c
+++ b/drivers/memory/tegra/tegra186-emc.c
@@@ -94,7 -94,7 +94,7 @@@ static int tegra186_emc_debug_available
static const struct file_operations tegra186_emc_debug_available_rates_fops = {
.open = tegra186_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -185,7 -185,7 +185,7 @@@ static int tegra186_emc_probe(struct pl
if (IS_ERR(emc->clk)) {
err = PTR_ERR(emc->clk);
dev_err(&pdev->dev, "failed to get EMC clock: %d\n", err);
- return err;
+ goto put_bpmp;
}
platform_set_drvdata(pdev, emc);
@@@ -201,7 -201,7 +201,7 @@@
err = tegra_bpmp_transfer(emc->bpmp, &msg);
if (err < 0) {
dev_err(&pdev->dev, "failed to EMC DVFS pairs: %d\n", err);
- return err;
+ goto put_bpmp;
}
emc->debugfs.min_rate = ULONG_MAX;
@@@ -211,10 -211,8 +211,10 @@@
emc->dvfs = devm_kmalloc_array(&pdev->dev, emc->num_dvfs,
sizeof(*emc->dvfs), GFP_KERNEL);
- if (!emc->dvfs)
- return -ENOMEM;
+ if (!emc->dvfs) {
+ err = -ENOMEM;
+ goto put_bpmp;
+ }
dev_dbg(&pdev->dev, "%u DVFS pairs:\n", emc->num_dvfs);
@@@ -239,10 -237,15 +239,10 @@@
"failed to set rate range [%lu-%lu] for %pC\n",
emc->debugfs.min_rate, emc->debugfs.max_rate,
emc->clk);
- return err;
+ goto put_bpmp;
}
emc->debugfs.root = debugfs_create_dir("emc", NULL);
- if (!emc->debugfs.root) {
- dev_err(&pdev->dev, "failed to create debugfs directory\n");
- return 0;
- }
-
debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
emc, &tegra186_emc_debug_available_rates_fops);
debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
@@@ -251,10 -254,6 +251,10 @@@
emc, &tegra186_emc_debug_max_rate_fops);
return 0;
+
+put_bpmp:
+ tegra_bpmp_put(emc->bpmp);
+ return err;
}
static int tegra186_emc_remove(struct platform_device *pdev)
@@@ -268,10 -267,10 +268,10 @@@
}
static const struct of_device_id tegra186_emc_of_match[] = {
-#if defined(CONFIG_ARCH_TEGRA186_SOC)
+#if defined(CONFIG_ARCH_TEGRA_186_SOC)
{ .compatible = "nvidia,tegra186-emc" },
#endif
-#if defined(CONFIG_ARCH_TEGRA194_SOC)
+#if defined(CONFIG_ARCH_TEGRA_194_SOC)
{ .compatible = "nvidia,tegra194-emc" },
#endif
{ /* sentinel */ }
diff --combined drivers/memory/tegra/tegra20-emc.c
index 027f46287dbf,c63b14f7b356..83ca46345aba
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@@ -7,11 -7,11 +7,11 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
@@@ -144,6 -144,7 +144,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -161,13 -162,17 +161,13 @@@
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
if (!status)
return IRQ_NONE;
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT)
- complete(&emc->clk_handshake_complete);
-
/* notify about HW problem */
if (status & EMC_REFRESH_OVERFLOW_INT)
dev_err_ratelimited(emc->dev,
@@@ -219,13 -224,14 +219,13 @@@ static int emc_prepare_timing_change(st
/* wait until programming has settled */
readl_relaxed(emc->regs + emc_timing_registers[i - 1]);
- reinit_completion(&emc->clk_handshake_complete);
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc, bool flush)
{
- unsigned long timeout;
+ int err;
+ u32 v;
dev_dbg(emc->dev, "%s: flush %d\n", __func__, flush);
@@@ -236,12 -242,11 +236,12 @@@
return 0;
}
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "EMC-CAR handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
return 0;
@@@ -407,7 -412,7 +407,7 @@@ tegra_emc_find_node_by_ram_code(struct
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 emc_cfg, emc_dbg;
emc_cfg = readl_relaxed(emc->regs + EMC_CFG_2);
@@@ -541,7 -546,7 +541,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -642,11 -647,11 +642,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -681,6 -686,7 +681,6 @@@ static int tegra_emc_probe(struct platf
return -ENOMEM;
}
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = tegra_emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/memory/tegra/tegra30-emc.c
index 055af0e08a2e,2ed027408af2..e448a55cb812
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@@ -11,6 -11,7 +11,6 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/err.h>
@@@ -326,6 -327,7 +326,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
struct tegra_mc *mc;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -372,10 -374,52 +372,10 @@@ static int emc_seq_update_timing(struc
return 0;
}
-static void emc_complete_clk_change(struct tegra_emc *emc)
-{
- struct emc_timing *timing = emc->new_timing;
- unsigned int dram_num;
- bool failed = false;
- int err;
-
- /* re-enable auto-refresh */
- dram_num = tegra_mc_get_emem_device_count(emc->mc);
- writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
- emc->regs + EMC_REFCTRL);
-
- /* restore auto-calibration */
- if (emc->vref_cal_toggle)
- writel_relaxed(timing->emc_auto_cal_interval,
- emc->regs + EMC_AUTO_CAL_INTERVAL);
-
- /* restore dynamic self-refresh */
- if (timing->emc_cfg_dyn_self_ref) {
- emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
- writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
- }
-
- /* set number of clocks to wait after each ZQ command */
- if (emc->zcal_long)
- writel_relaxed(timing->emc_zcal_cnt_long,
- emc->regs + EMC_ZCAL_WAIT_CNT);
-
- /* wait for writes to settle */
- udelay(2);
-
- /* update restored timing */
- err = emc_seq_update_timing(emc);
- if (err)
- failed = true;
-
- /* restore early ACK */
- mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
-
- WRITE_ONCE(emc->bad_state, failed);
-}
-
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
@@@ -390,6 -434,18 +390,6 @@@
/* clear interrupts */
writel_relaxed(status, emc->regs + EMC_INTSTATUS);
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT) {
- if (completion_done(&emc->clk_handshake_complete)) {
- dev_err_ratelimited(emc->dev,
- "bogus handshake interrupt\n");
- return IRQ_NONE;
- }
-
- emc_complete_clk_change(emc);
- complete(&emc->clk_handshake_complete);
- }
-
return IRQ_HANDLED;
}
@@@ -745,58 -801,29 +745,58 @@@ static int emc_prepare_timing_change(st
*/
mc_readl(emc->mc, MC_EMEM_ARB_OVERRIDE);
- reinit_completion(&emc->clk_handshake_complete);
-
- emc->new_timing = timing;
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc,
unsigned long rate)
{
- unsigned long timeout;
+ struct emc_timing *timing = emc_find_timing(emc, rate);
+ unsigned int dram_num;
+ int err;
+ u32 v;
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "emc-car handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
- if (READ_ONCE(emc->bad_state))
- return -EIO;
+ /* re-enable auto-refresh */
+ dram_num = tegra_mc_get_emem_device_count(emc->mc);
+ writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
+ emc->regs + EMC_REFCTRL);
+
+ /* restore auto-calibration */
+ if (emc->vref_cal_toggle)
+ writel_relaxed(timing->emc_auto_cal_interval,
+ emc->regs + EMC_AUTO_CAL_INTERVAL);
- return 0;
+ /* restore dynamic self-refresh */
+ if (timing->emc_cfg_dyn_self_ref) {
+ emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
+ writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
+ }
+
+ /* set number of clocks to wait after each ZQ command */
+ if (emc->zcal_long)
+ writel_relaxed(timing->emc_zcal_cnt_long,
+ emc->regs + EMC_ZCAL_WAIT_CNT);
+
+ /* wait for writes to settle */
+ udelay(2);
+
+ /* update restored timing */
+ err = emc_seq_update_timing(emc);
+ if (!err)
+ emc->bad_state = false;
+
+ /* restore early ACK */
+ mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
+
+ return err;
}
static int emc_unprepare_timing_change(struct tegra_emc *emc,
@@@ -1006,7 -1033,7 +1006,7 @@@ static struct device_node *emc_find_nod
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 fbio_cfg5, emc_cfg, emc_dbg;
enum emc_dram_type dram_type;
@@@ -1147,7 -1174,7 +1147,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1248,11 -1275,11 +1248,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -1294,6 -1321,7 +1294,6 @@@ static int tegra_emc_probe(struct platf
if (!emc->mc)
return -EPROBE_DEFER;
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/mfd/ab3100-core.c
index ee71ae04b5e6,0f461180d29f..092c78b5e26f
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@@ -473,7 -473,7 +473,7 @@@ static int ab3100_registers_open(struc
static const struct file_operations ab3100_registers_fops = {
.open = ab3100_registers_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -498,7 -498,7 +498,7 @@@ static ssize_t ab3100_get_set_reg(struc
int i = 0;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((ssize_t)count, (ssize_t)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
diff --combined drivers/mfd/ab3100-otp.c
index c393102e3a39,3667fa4c9fed..3c1157e7a0c1
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@@ -29,22 -29,22 +29,22 @@@
/**
* struct ab3100_otp
- * @dev containing device
- * @locked whether the OTP is locked, after locking, no more bits
+ * @dev: containing device
+ * @locked: whether the OTP is locked, after locking, no more bits
* can be changed but before locking it is still possible
* to change bits from 1->0.
- * @freq clocking frequency for the OTP, this frequency is either
+ * @freq: clocking frequency for the OTP, this frequency is either
* 32768Hz or 1MHz/30
- * @paf product activation flag, indicates whether this is a real
+ * @paf: product activation flag, indicates whether this is a real
* product (paf true) or a lab board etc (paf false)
- * @imeich if this is set it is possible to override the
+ * @imeich: if this is set it is possible to override the
* IMEI number found in the tac, fac and svn fields with
* (secured) software
- * @cid customer ID
- * @tac type allocation code of the IMEI
- * @fac final assembly code of the IMEI
- * @svn software version number of the IMEI
- * @debugfs a debugfs file used when dumping to file
+ * @cid: customer ID
+ * @tac: type allocation code of the IMEI
+ * @fac: final assembly code of the IMEI
+ * @svn: software version number of the IMEI
+ * @debugfs: a debugfs file used when dumping to file
*/
struct ab3100_otp {
struct device *dev;
@@@ -117,7 -117,7 +117,7 @@@ static int ab3100_otp_open(struct inod
static const struct file_operations ab3100_otp_operations = {
.open = ab3100_otp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/mfd/ab8500-debugfs.c
index 6d1bf7c3ca3b,fcdb618fe2db..838798c98d0f
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@@ -1376,7 -1376,7 +1376,7 @@@ static int ab8500_all_banks_open(struc
static const struct file_operations ab8500_all_banks_fops = {
.open = ab8500_all_banks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t ab8500_hwreg_write(struc
int buf_size, ret;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((int)count, (int)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
@@@ -1959,7 -1959,7 +1959,7 @@@ static ssize_t ab8500_unsubscribe_write
static const struct file_operations ab8500_bank_fops = {
.open = ab8500_bank_open,
.write = ab8500_bank_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1968,7 -1968,7 +1968,7 @@@
static const struct file_operations ab8500_address_fops = {
.open = ab8500_address_open,
.write = ab8500_address_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1977,7 -1977,7 +1977,7 @@@
static const struct file_operations ab8500_val_fops = {
.open = ab8500_val_open,
.write = ab8500_val_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1986,7 -1986,7 +1986,7 @@@
static const struct file_operations ab8500_subscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_subscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1995,7 -1995,7 +1995,7 @@@
static const struct file_operations ab8500_unsubscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_unsubscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -2004,7 -2004,7 +2004,7 @@@
static const struct file_operations ab8500_hwreg_fops = {
.open = ab8500_hwreg_open,
.write = ab8500_hwreg_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
diff --combined drivers/mfd/tps65010.c
index 7e7dbee58ca9,19ed0a372389..31259867f637
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@@ -290,7 -290,7 +290,7 @@@ static int dbg_tps_open(struct inode *i
static const struct file_operations debug_fops = {
.open = dbg_tps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -404,6 -404,7 +404,6 @@@ static void tps65010_work(struct work_s
tps65010_interrupt(tps);
if (test_and_clear_bit(FLAG_VBUS_CHANGED, &tps->flags)) {
- int status;
u8 chgconfig, tmp;
chgconfig = i2c_smbus_read_byte_data(tps->client,
@@@ -414,8 -415,8 +414,8 @@@
else if (tps->vbus >= 100)
chgconfig |= TPS_VBUS_CHARGING;
- status = i2c_smbus_write_byte_data(tps->client,
- TPS_CHGCONFIG, chgconfig);
+ i2c_smbus_write_byte_data(tps->client,
+ TPS_CHGCONFIG, chgconfig);
/* vbus update fails unless VBUS is connected! */
tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
diff --combined drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 05f33b7e3677,3891fb39a889..424026da73cc
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@@ -229,7 -229,7 +229,7 @@@ static int cim_la_open(struct inode *in
static const struct file_operations cim_la_fops = {
.owner = THIS_MODULE,
.open = cim_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -272,7 -272,7 +272,7 @@@ static int cim_pif_la_open(struct inod
static const struct file_operations cim_pif_la_fops = {
.owner = THIS_MODULE,
.open = cim_pif_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -318,7 -318,7 +318,7 @@@ static int cim_ma_la_open(struct inode
static const struct file_operations cim_ma_la_fops = {
.owner = THIS_MODULE,
.open = cim_ma_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -411,7 -411,7 +411,7 @@@ static int cim_ibq_open(struct inode *i
static const struct file_operations cim_ibq_fops = {
.owner = THIS_MODULE,
.open = cim_ibq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -440,7 -440,7 +440,7 @@@ static int cim_obq_open(struct inode *i
static const struct file_operations cim_obq_fops = {
.owner = THIS_MODULE,
.open = cim_obq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -686,7 -686,7 +686,7 @@@ static ssize_t tp_la_write(struct file
static const struct file_operations tp_la_fops = {
.owner = THIS_MODULE,
.open = tp_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
.write = tp_la_write
@@@ -722,7 -722,7 +722,7 @@@ static int ulprx_la_open(struct inode *
static const struct file_operations ulprx_la_fops = {
.owner = THIS_MODULE,
.open = ulprx_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -812,7 -812,7 +812,7 @@@ static ssize_t pm_stats_clear(struct fi
static const struct file_operations pm_stats_debugfs_fops = {
.owner = THIS_MODULE,
.open = pm_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pm_stats_clear
@@@ -1136,7 -1136,7 +1136,7 @@@ static int devlog_open(struct inode *in
static const struct file_operations devlog_fops = {
.owner = THIS_MODULE,
.open = devlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -1234,7 -1234,7 +1234,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -1317,7 -1317,7 +1317,7 @@@ static ssize_t mbox_write(struct file *
static const struct file_operations mbox_debugfs_fops = {
.owner = THIS_MODULE,
.open = mbox_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mbox_write
@@@ -1610,7 -1610,7 +1610,7 @@@ out
static const struct file_operations mps_trc_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_trc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mps_trc_write
@@@ -1930,7 -1930,7 +1930,7 @@@ static int mps_tcam_open(struct inode *
static const struct file_operations mps_tcam_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_tcam_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2007,7 -2007,7 +2007,7 @@@ static int rss_open(struct inode *inode
static const struct file_operations rss_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2226,7 -2226,7 +2226,7 @@@ static ssize_t rss_key_write(struct fil
static const struct file_operations rss_key_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_key_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = rss_key_write
@@@ -2310,7 -2310,7 +2310,7 @@@ static int rss_pf_config_open(struct in
static const struct file_operations rss_pf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_pf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2373,7 -2373,7 +2373,7 @@@ static int rss_vf_config_open(struct in
static const struct file_operations rss_vf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_vf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2561,7 -2561,7 +2561,7 @@@ static int dcb_info_open(struct inode *
static const struct file_operations dcb_info_debugfs_fops = {
.owner = THIS_MODULE,
.open = dcb_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2742,58 -2742,6 +2742,58 @@@ do {
}
r -= eth_entries;
+ for_each_port(adap, j) {
+ struct port_info *pi = adap2pinfo(adap, j);
+ const struct sge_eth_rxq *rx;
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (!pi->vi_mirror_count) {
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ if (r >= DIV_ROUND_UP(pi->nmirrorqsets, 4)) {
+ r -= DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ rx = &s->mirror_rxq[j][r * 4];
+ n = min(4, pi->nmirrorqsets - 4 * r);
+
+ S("QType:", "Mirror-Rxq");
+ S("Interface:",
+ rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
+ R("RspQ ID:", rspq.abs_id);
+ R("RspQ size:", rspq.size);
+ R("RspQE size:", rspq.iqe_len);
+ R("RspQ CIDX:", rspq.cidx);
+ R("RspQ Gen:", rspq.gen);
+ S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
+ S3("u", "Intr pktcnt:", s->counter_val[rx[i].rspq.pktcnt_idx]);
+ R("FL ID:", fl.cntxt_id);
+ R("FL size:", fl.size - 8);
+ R("FL pend:", fl.pend_cred);
+ R("FL avail:", fl.avail);
+ R("FL PIDX:", fl.pidx);
+ R("FL CIDX:", fl.cidx);
+ RL("RxPackets:", stats.pkts);
+ RL("RxCSO:", stats.rx_cso);
+ RL("VLANxtract:", stats.vlan_ex);
+ RL("LROmerged:", stats.lro_merged);
+ RL("LROpackets:", stats.lro_pkts);
+ RL("RxDrops:", stats.rx_drops);
+ RL("RxBadPkts:", stats.bad_rx_pkts);
+ RL("FLAllocErr:", fl.alloc_failed);
+ RL("FLLrgAlcErr:", fl.large_alloc_failed);
+ RL("FLMapErr:", fl.mapping_err);
+ RL("FLLow:", fl.low);
+ RL("FLStarving:", fl.starving);
+
+ mutex_unlock(&pi->vi_mirror_mutex);
+ goto out;
+ }
+
if (!adap->tc_mqprio)
goto skip_mqprio;
@@@ -3150,10 -3098,9 +3150,10 @@@ unlock
return 0;
}
-static int sge_queue_entries(const struct adapter *adap)
+static int sge_queue_entries(struct adapter *adap)
{
int i, tot_uld_entries = 0, eohw_entries = 0, eosw_entries = 0;
+ int mirror_rxq_entries = 0;
if (adap->tc_mqprio) {
struct cxgb4_tc_port_mqprio *port_mqprio;
@@@ -3176,15 -3123,6 +3176,15 @@@
mutex_unlock(&adap->tc_mqprio->mqprio_mutex);
}
+ for_each_port(adap, i) {
+ struct port_info *pi = adap2pinfo(adap, i);
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (pi->vi_mirror_count)
+ mirror_rxq_entries += DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ }
+
if (!is_uld(adap))
goto lld_only;
@@@ -3199,7 -3137,7 +3199,7 @@@
mutex_unlock(&uld_mutex);
lld_only:
- return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
+ return DIV_ROUND_UP(adap->sge.ethqsets, 4) + mirror_rxq_entries +
eohw_entries + eosw_entries + tot_uld_entries +
DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
}
@@@ -3245,7 -3183,7 +3245,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index dbe8ee7e0e21,20e74d5e837f..6983e3d55e22
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@@ -2039,7 -2039,7 +2039,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2192,7 -2192,7 +2192,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2338,7 -2338,7 +2338,7 @@@ static int sge_qstats_open(struct inod
static const struct file_operations sge_qstats_proc_fops = {
.owner = THIS_MODULE,
.open = sge_qstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2436,7 -2436,7 +2436,7 @@@ static int interfaces_open(struct inod
static const struct file_operations interfaces_proc_fops = {
.owner = THIS_MODULE,
.open = interfaces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2916,39 -2916,6 +2916,39 @@@ static const struct net_device_ops cxgb
#endif
};
+/**
+ * cxgb4vf_get_port_mask - Get port mask for the VF based on mac
+ * address stored on the adapter
+ * @adapter: The adapter
+ *
+ * Find the the port mask for the VF based on the index of mac
+ * address stored in the adapter. If no mac address is stored on
+ * the adapter for the VF, use the port mask received from the
+ * firmware.
+ */
+static unsigned int cxgb4vf_get_port_mask(struct adapter *adapter)
+{
+ unsigned int naddr = 1, pidx = 0;
+ unsigned int pmask, rmask = 0;
+ u8 mac[ETH_ALEN];
+ int err;
+
+ pmask = adapter->params.vfres.pmask;
+ while (pmask) {
+ if (pmask & 1) {
+ err = t4vf_get_vf_mac_acl(adapter, pidx, &naddr, mac);
+ if (!err && !is_zero_ether_addr(mac))
+ rmask |= (1 << pidx);
+ }
+ pmask >>= 1;
+ pidx++;
+ }
+ if (!rmask)
+ rmask = adapter->params.vfres.pmask;
+
+ return rmask;
+}
+
/*
* "Probe" a device: initialize a device and construct all kernel and driver
* state needed to manage the device. This routine is called "init_one" in
@@@ -2957,12 -2924,13 +2957,12 @@@
static int cxgb4vf_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- int pci_using_dac;
- int err, pidx;
- unsigned int pmask;
struct adapter *adapter;
- struct port_info *pi;
struct net_device *netdev;
- unsigned int pf;
+ struct port_info *pi;
+ unsigned int pmask;
+ int pci_using_dac;
+ int err, pidx;
/*
* Initialize generic PCI device state.
@@@ -3105,7 -3073,8 +3105,7 @@@
/*
* Allocate our "adapter ports" and stitch everything together.
*/
- pmask = adapter->params.vfres.pmask;
- pf = t4vf_get_pf_from_vf(adapter);
+ pmask = cxgb4vf_get_port_mask(adapter);
for_each_port(adapter, pidx) {
int port_id, viid;
u8 mac[ETH_ALEN];
@@@ -3188,7 -3157,7 +3188,7 @@@
goto err_free_dev;
}
- err = t4vf_get_vf_mac_acl(adapter, pf, &naddr, mac);
+ err = t4vf_get_vf_mac_acl(adapter, port_id, &naddr, mac);
if (err) {
dev_err(&pdev->dev,
"unable to determine MAC ACL address, "
diff --combined drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
index 56d9927fbfda,bc99fe0aabf0..f80f94e1e10a
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
@@@ -21,7 -21,7 +21,7 @@@ static int dpaa2_dbg_cpu_show(struct se
seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
"CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
- "Tx SG", "Tx realloc", "Enq busy");
+ "Tx SG", "Tx converted to SG", "Enq busy");
for_each_online_cpu(i) {
stats = per_cpu_ptr(priv->percpu_stats, i);
@@@ -35,7 -35,7 +35,7 @@@
stats->tx_errors,
extras->tx_conf_frames,
extras->tx_sg_frames,
- extras->tx_reallocs,
+ extras->tx_converted_sg_frames,
extras->tx_portal_busy);
}
@@@ -56,7 -56,7 +56,7 @@@ static int dpaa2_dbg_cpu_open(struct in
static const struct file_operations dpaa2_dbg_cpu_ops = {
.open = dpaa2_dbg_cpu_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -90,10 -90,6 +90,10 @@@ static int dpaa2_dbg_fqs_show(struct se
if (err)
fcnt = 0;
+ /* Skip FQs with no traffic */
+ if (!fq->stats.frames && !fcnt)
+ continue;
+
seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",
fq->fqid,
fq->target_cpu,
@@@ -120,7 -116,7 +120,7 @@@ static int dpaa2_dbg_fqs_open(struct in
static const struct file_operations dpaa2_dbg_fq_ops = {
.open = dpaa2_dbg_fqs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -165,7 -161,7 +165,7 @@@ static int dpaa2_dbg_ch_open(struct ino
static const struct file_operations dpaa2_dbg_ch_ops = {
.open = dpaa2_dbg_ch_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
index 267ad4eddb5c,cf3b7ec4db73..a3a1691e5ed9
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
@@@ -260,7 -260,7 +260,7 @@@ struct hcmd_write_data
__be32 cmd_id;
__be32 flags;
__be16 length;
- u8 data[0];
+ u8 data[];
} __packed;
static ssize_t iwl_dbgfs_send_hcmd_write(struct iwl_fw_runtime *fwrt, char *buf,
@@@ -419,7 -419,7 +419,7 @@@ static int iwl_dbgfs_fw_info_open(struc
static const struct file_operations iwl_dbgfs_fw_info_ops = {
.owner = THIS_MODULE,
.open = iwl_dbgfs_fw_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
diff --combined drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
index d06afcf46d67,c61bd9803078..e356d9ec5957
--- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
@@@ -181,7 -181,7 +181,7 @@@ mt7615_ampdu_stat_open(struct inode *in
static const struct file_operations fops_ampdu_stat = {
.open = mt7615_ampdu_stat_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -234,11 -234,10 +234,11 @@@ mt7615_queues_acq(struct seq_file *s, v
int i;
for (i = 0; i < 16; i++) {
- int j, acs = i / 4, index = i % 4;
+ int j, wmm_idx = i % MT7615_MAX_WMM_SETS;
+ int acs = i / MT7615_MAX_WMM_SETS;
u32 ctrl, val, qlen = 0;
- val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
+ val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, wmm_idx));
ctrl = BIT(31) | BIT(15) | (acs << 8);
for (j = 0; j < 32; j++) {
@@@ -246,11 -245,11 +246,11 @@@
continue;
mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
- ctrl | (j + (index << 5)));
+ ctrl | (j + (wmm_idx << 5)));
qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
GENMASK(11, 0));
}
- seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
+ seq_printf(s, "AC%d%d: queued=%d\n", wmm_idx, acs, qlen);
}
return 0;
diff --combined drivers/net/xen-netback/xenbus.c
index 7e62a6ee7622,06b253eba25d..aad7e526eb5f
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@@ -152,7 -152,7 +152,7 @@@ static int xenvif_io_ring_open(struct i
static const struct file_operations xenvif_dbg_io_ring_ops_fops = {
.owner = THIS_MODULE,
.open = xenvif_io_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = xenvif_write_io_ring,
@@@ -393,24 -393,6 +393,24 @@@ static void set_backend_state(struct ba
}
}
+static void read_xenbus_frontend_xdp(struct backend_info *be,
+ struct xenbus_device *dev)
+{
+ struct xenvif *vif = be->vif;
+ u16 headroom;
+ int err;
+
+ err = xenbus_scanf(XBT_NIL, dev->otherend,
+ "xdp-headroom", "%hu", &headroom);
+ if (err != 1) {
+ vif->xdp_headroom = 0;
+ return;
+ }
+ if (headroom > XEN_NETIF_MAX_XDP_HEADROOM)
+ headroom = XEN_NETIF_MAX_XDP_HEADROOM;
+ vif->xdp_headroom = headroom;
+}
+
/**
* Callback received when the frontend's state changes.
*/
@@@ -435,11 -417,6 +435,11 @@@ static void frontend_changed(struct xen
set_backend_state(be, XenbusStateConnected);
break;
+ case XenbusStateReconfiguring:
+ read_xenbus_frontend_xdp(be, dev);
+ xenbus_switch_state(dev, XenbusStateReconfigured);
+ break;
+
case XenbusStateClosing:
set_backend_state(be, XenbusStateClosing);
break;
@@@ -970,8 -947,6 +970,8 @@@ static int read_xenbus_vif_flags(struc
vif->ipv6_csum = !!xenbus_read_unsigned(dev->otherend,
"feature-ipv6-csum-offload", 0);
+ read_xenbus_frontend_xdp(be, dev);
+
return 0;
}
@@@ -1061,15 -1036,6 +1061,15 @@@ static int netback_probe(struct xenbus_
goto abort_transaction;
}
+ /* we can adjust a headroom for netfront XDP processing */
+ err = xenbus_printf(xbt, dev->nodename,
+ "feature-xdp-headroom", "%d",
+ provides_xdp_headroom);
+ if (err) {
+ message = "writing feature-xdp-headroom";
+ goto abort_transaction;
+ }
+
/* We don't support rx-flip path (except old guests who
* don't grok this feature flag).
*/
diff --combined drivers/pci/controller/pci-tegra.c
index 71bf4b2684ac,bfb8dbc2d0ea..66386f742bd7
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@@ -1462,7 -1462,7 +1462,7 @@@ static int tegra_pcie_get_resources(str
{
struct device *dev = pcie->dev;
struct platform_device *pdev = to_platform_device(dev);
- struct resource *pads, *afi, *res;
+ struct resource *res;
const struct tegra_pcie_soc *soc = pcie->soc;
int err;
@@@ -1486,13 -1486,15 +1486,13 @@@
}
}
- pads = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pads");
- pcie->pads = devm_ioremap_resource(dev, pads);
+ pcie->pads = devm_platform_ioremap_resource_byname(pdev, "pads");
if (IS_ERR(pcie->pads)) {
err = PTR_ERR(pcie->pads);
goto phys_put;
}
- afi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "afi");
- pcie->afi = devm_ioremap_resource(dev, afi);
+ pcie->afi = devm_platform_ioremap_resource_byname(pdev, "afi");
if (IS_ERR(pcie->afi)) {
err = PTR_ERR(pcie->afi);
goto phys_put;
@@@ -2632,7 -2634,7 +2632,7 @@@ static int tegra_pcie_ports_open(struc
static const struct file_operations tegra_pcie_ports_ops = {
.owner = THIS_MODULE,
.open = tegra_pcie_ports_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2668,6 -2670,7 +2668,6 @@@ static int tegra_pcie_probe(struct plat
struct device *dev = &pdev->dev;
struct pci_host_bridge *host;
struct tegra_pcie *pcie;
- struct pci_bus *child;
struct resource *bus;
int err;
@@@ -2718,12 -2721,20 +2718,12 @@@
host->map_irq = tegra_pcie_map_irq;
host->swizzle_irq = pci_common_swizzle;
- err = pci_scan_root_bus_bridge(host);
+ err = pci_host_probe(host);
if (err < 0) {
dev_err(dev, "failed to register host: %d\n", err);
goto pm_runtime_put;
}
- pci_bus_size_bridges(host->bus);
- pci_bus_assign_resources(host->bus);
-
- list_for_each_entry(child, &host->bus->children, node)
- pcie_bus_configure_settings(child);
-
- pci_bus_add_devices(host->bus);
-
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_pcie_debugfs_init(pcie);
if (err < 0)
diff --combined drivers/platform/x86/asus-wmi.c
index 8f4acdc06b13,9efa854fff13..13f7d1bf076b
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@@ -441,7 -441,6 +441,7 @@@ static int asus_wmi_battery_add(struct
* battery is named BATT.
*/
if (strcmp(battery->desc->name, "BAT0") != 0 &&
+ strcmp(battery->desc->name, "BAT1") != 0 &&
strcmp(battery->desc->name, "BATT") != 0)
return -ENODEV;
@@@ -2503,7 -2502,7 +2503,7 @@@ static int asus_wmi_debugfs_open(struc
static const struct file_operations asus_wmi_debugfs_io_ops = {
.owner = THIS_MODULE,
.open = asus_wmi_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/platform/x86/intel_pmc_core.c
index 338ea5222555,4941349004f6..e0bee021d044
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@@ -415,7 -415,7 +415,7 @@@ static const struct pmc_bit_map tgl_lpm
{"PCIe_Gen3PLL_OFF_STS", BIT(20)},
{"OPIOPLL_OFF_STS", BIT(21)},
{"OCPLL_OFF_STS", BIT(22)},
- {"AudioPLL_OFF_STS", BIT(23)},
+ {"MainPLL_OFF_STS", BIT(23)},
{"MIPIPLL_OFF_STS", BIT(24)},
{"Fast_XTAL_Osc_OFF_STS", BIT(25)},
{"AC_Ring_Osc_OFF_STS", BIT(26)},
@@@ -795,7 -795,7 +795,7 @@@ static int pmc_core_mphy_pg_show(struc
msleep(10);
val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
- for (index = 0; map[index].name && index < 8; index++) {
+ for (index = 0; index < 8 && map[index].name; index++) {
seq_printf(s, "%-32s\tState: %s\n",
map[index].name,
map[index].bit_mask & val_low ? "Not power gated" :
@@@ -894,7 -894,7 +894,7 @@@ static int pmc_core_ltr_ignore_open(str
static const struct file_operations pmc_core_ltr_ignore_ops = {
.open = pmc_core_ltr_ignore_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = pmc_core_ltr_ignore_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined drivers/platform/x86/thinkpad_acpi.c
index edae2db27984,f571d6254e7c..00264903db4a
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@@ -885,19 -885,11 +885,19 @@@ static ssize_t dispatch_proc_write(stru
if (!ibm || !ibm->write)
return -EINVAL;
+ if (count > PAGE_SIZE - 1)
+ return -EINVAL;
+
+ kernbuf = kmalloc(count + 1, GFP_KERNEL);
+ if (!kernbuf)
+ return -ENOMEM;
- kernbuf = strndup_user(userbuf, PAGE_SIZE);
- if (IS_ERR(kernbuf))
- return PTR_ERR(kernbuf);
+ if (copy_from_user(kernbuf, userbuf, count)) {
+ kfree(kernbuf);
+ return -EFAULT;
+ }
+ kernbuf[count] = 0;
ret = ibm->write(kernbuf);
if (ret == 0)
ret = count;
@@@ -909,7 -901,7 +909,7 @@@
static const struct proc_ops dispatch_proc_ops = {
.proc_open = dispatch_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = dispatch_proc_write,
@@@ -4030,8 -4022,8 +4030,8 @@@ static bool hotkey_notify_6xxx(const u3
return true;
case TP_HKEY_EV_THM_CSM_COMPLETED:
pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n");
- /* recommended action: do nothing, we don't have
- * Lenovo ATM information */
+ /* Thermal event - pass on to event handler */
+ tpacpi_driver_event(hkey);
return true;
case TP_HKEY_EV_THM_TRANSFM_CHANGED:
pr_debug("EC reports: Thermal Transformation changed (GMTS)\n");
@@@ -6963,13 -6955,10 +6963,13 @@@ static int __init brightness_init(struc
pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n");
return 1;
}
- } else if (tp_features.bright_acpimode && brightness_enable > 1) {
- pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n");
+ } else if (!tp_features.bright_acpimode) {
+ pr_notice("ACPI backlight interface not available\n");
+ return 1;
}
+ pr_notice("ACPI native brightness control enabled\n");
+
/*
* Check for module parameter bogosity, note that we
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
@@@ -7968,7 -7957,7 +7968,7 @@@ static struct ibm_struct volume_driver_
* does so, its initial value is meaningless (0x07).
*
* For firmware bugs, refer to:
- * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
+ * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
@@@ -7993,7 -7982,7 +7993,7 @@@
* mode.
*
* For firmware bugs, refer to:
- * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
+ * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
@@@ -9806,105 -9795,6 +9806,105 @@@ static struct ibm_struct lcdshadow_driv
.write = lcdshadow_write,
};
+/*************************************************************************
+ * DYTC subdriver, for the Lenovo lapmode feature
+ */
+
+#define DYTC_CMD_GET 2 /* To get current IC function and mode */
+#define DYTC_GET_LAPMODE_BIT 17 /* Set when in lapmode */
+
+static bool dytc_lapmode;
+
+static void dytc_lapmode_notify_change(void)
+{
+ sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "dytc_lapmode");
+}
+
+static int dytc_command(int command, int *output)
+{
+ acpi_handle dytc_handle;
+
+ if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DYTC", &dytc_handle))) {
+ /* Platform doesn't support DYTC */
+ return -ENODEV;
+ }
+ if (!acpi_evalf(dytc_handle, output, NULL, "dd", command))
+ return -EIO;
+ return 0;
+}
+
+static int dytc_lapmode_get(bool *state)
+{
+ int output, err;
+
+ err = dytc_command(DYTC_CMD_GET, &output);
+ if (err)
+ return err;
+ *state = output & BIT(DYTC_GET_LAPMODE_BIT) ? true : false;
+ return 0;
+}
+
+static void dytc_lapmode_refresh(void)
+{
+ bool new_state;
+ int err;
+
+ err = dytc_lapmode_get(&new_state);
+ if (err || (new_state == dytc_lapmode))
+ return;
+
+ dytc_lapmode = new_state;
+ dytc_lapmode_notify_change();
+}
+
+/* sysfs lapmode entry */
+static ssize_t dytc_lapmode_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", dytc_lapmode);
+}
+
+static DEVICE_ATTR_RO(dytc_lapmode);
+
+static struct attribute *dytc_attributes[] = {
+ &dev_attr_dytc_lapmode.attr,
+ NULL,
+};
+
+static const struct attribute_group dytc_attr_group = {
+ .attrs = dytc_attributes,
+};
+
+static int tpacpi_dytc_init(struct ibm_init_struct *iibm)
+{
+ int err;
+
+ err = dytc_lapmode_get(&dytc_lapmode);
+ /* If support isn't available (ENODEV) then don't return an error
+ * but just don't create the sysfs group
+ */
+ if (err == -ENODEV)
+ return 0;
+ /* For all other errors we can flag the failure */
+ if (err)
+ return err;
+
+ /* Platform supports this feature - create the group */
+ err = sysfs_create_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group);
+ return err;
+}
+
+static void dytc_exit(void)
+{
+ sysfs_remove_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group);
+}
+
+static struct ibm_struct dytc_driver_data = {
+ .name = "dytc",
+ .exit = dytc_exit,
+};
+
/****************************************************************************
****************************************************************************
*
@@@ -9952,10 -9842,6 +9952,10 @@@ static void tpacpi_driver_event(const u
mutex_unlock(&kbdlight_mutex);
}
+
+ if (hkey_event == TP_HKEY_EV_THM_CSM_COMPLETED)
+ dytc_lapmode_refresh();
+
}
static void hotkey_driver_event(const unsigned int scancode)
@@@ -10208,7 -10094,7 +10208,7 @@@ static int __must_check __init get_thin
* X32 or newer, all Z series; Some models must have an
* up-to-date BIOS or they will not be detected.
*
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See https://thinkwiki.org/wiki/List_of_DMI_IDs
*/
while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
if (sscanf(dev->name,
@@@ -10394,10 -10280,6 +10394,10 @@@ static struct ibm_init_struct ibms_init
.init = tpacpi_lcdshadow_init,
.data = &lcdshadow_driver_data,
},
+ {
+ .init = tpacpi_dytc_init,
+ .data = &dytc_driver_data,
+ },
};
static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
@@@ -10731,8 -10613,8 +10731,8 @@@ MODULE_DEVICE_TABLE(acpi, ibm_htk_devic
/*
* DMI matching for module autoloading
*
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
- * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
+ * See https://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See https://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
*
* Only models listed in thinkwiki will be supported, so add yours
* if it is not there yet.
diff --combined drivers/pwm/core.c
index 276e939a5684,ad39b0bb0b03..a7037136d49f
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@@ -510,12 -510,12 +510,12 @@@ static void pwm_apply_state_debug(struc
last->period > s2.period &&
last->period <= state->period)
dev_warn(chip->dev,
- ".apply didn't pick the best available period (requested: %u, applied: %u, possible: %u)\n",
+ ".apply didn't pick the best available period (requested: %llu, applied: %llu, possible: %llu)\n",
state->period, s2.period, last->period);
if (state->enabled && state->period < s2.period)
dev_warn(chip->dev,
- ".apply is supposed to round down period (requested: %u, applied: %u)\n",
+ ".apply is supposed to round down period (requested: %llu, applied: %llu)\n",
state->period, s2.period);
if (state->enabled &&
@@@ -524,14 -524,14 +524,14 @@@
last->duty_cycle > s2.duty_cycle &&
last->duty_cycle <= state->duty_cycle)
dev_warn(chip->dev,
- ".apply didn't pick the best available duty cycle (requested: %u/%u, applied: %u/%u, possible: %u/%u)\n",
+ ".apply didn't pick the best available duty cycle (requested: %llu/%llu, applied: %llu/%llu, possible: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period,
last->duty_cycle, last->period);
if (state->enabled && state->duty_cycle < s2.duty_cycle)
dev_warn(chip->dev,
- ".apply is supposed to round down duty_cycle (requested: %u/%u, applied: %u/%u)\n",
+ ".apply is supposed to round down duty_cycle (requested: %llu/%llu, applied: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period);
@@@ -558,7 -558,7 +558,7 @@@
(s1.enabled && s1.period != last->period) ||
(s1.enabled && s1.duty_cycle != last->duty_cycle)) {
dev_err(chip->dev,
- ".apply is not idempotent (ena=%d pol=%d %u/%u) -> (ena=%d pol=%d %u/%u)\n",
+ ".apply is not idempotent (ena=%d pol=%d %llu/%llu) -> (ena=%d pol=%d %llu/%llu)\n",
s1.enabled, s1.polarity, s1.duty_cycle, s1.period,
last->enabled, last->polarity, last->duty_cycle,
last->period);
@@@ -1284,8 -1284,8 +1284,8 @@@ static void pwm_dbg_show(struct pwm_chi
if (state.enabled)
seq_puts(s, " enabled");
- seq_printf(s, " period: %u ns", state.period);
- seq_printf(s, " duty: %u ns", state.duty_cycle);
+ seq_printf(s, " period: %llu ns", state.period);
+ seq_printf(s, " duty: %llu ns", state.duty_cycle);
seq_printf(s, " polarity: %s",
state.polarity ? "inverse" : "normal");
@@@ -1342,7 -1342,7 +1342,7 @@@ static int pwm_seq_open(struct inode *i
static const struct file_operations pwm_debugfs_ops = {
.owner = THIS_MODULE,
.open = pwm_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/s390/block/dasd.c
index eb17fea8075c,17a9a35e9aed..20f256e6d38b
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@@ -1089,7 -1089,7 +1089,7 @@@ static int dasd_stats_open(struct inod
static const struct file_operations dasd_stats_raw_fops = {
.owner = THIS_MODULE,
.open = dasd_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = dasd_stats_write,
@@@ -2802,7 -2802,7 +2802,7 @@@ static void __dasd_cleanup_cqr(struct d
blk_update_request(req, BLK_STS_OK,
blk_rq_bytes(req) - proc_bytes);
blk_mq_requeue_request(req, true);
- } else {
+ } else if (likely(!blk_should_fake_timeout(req->q))) {
blk_mq_complete_request(req);
}
}
diff --combined drivers/soc/qcom/socinfo.c
index e19102f46302,ab2a56c75f13..d9c64a78e49c
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@@ -24,7 -24,6 +24,7 @@@
#define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
#define SMEM_SOCINFO_BUILD_ID_LENGTH 32
+#define SMEM_SOCINFO_CHIP_ID_LENGTH 32
/*
* SMEM item id, used to acquire handles to respective
@@@ -122,16 -121,6 +122,16 @@@ struct socinfo
__le32 chip_family;
__le32 raw_device_family;
__le32 raw_device_num;
+ /* Version 13 */
+ __le32 nproduct_id;
+ char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
+ /* Version 14 */
+ __le32 num_clusters;
+ __le32 ncluster_array_offset;
+ __le32 num_defective_parts;
+ __le32 ndefective_parts_array_offset;
+ /* Version 15 */
+ __le32 nmodem_supported;
};
#ifdef CONFIG_DEBUG_FS
@@@ -146,12 -135,6 +146,12 @@@ struct socinfo_params
u32 raw_ver;
u32 hw_plat;
u32 fmt;
+ u32 nproduct_id;
+ u32 num_clusters;
+ u32 ncluster_array_offset;
+ u32 num_defective_parts;
+ u32 ndefective_parts_array_offset;
+ u32 nmodem_supported;
};
struct smem_image_version {
@@@ -219,10 -202,8 +219,10 @@@ static const struct soc_id soc_id[] =
{ 310, "MSM8996AU" },
{ 311, "APQ8096AU" },
{ 312, "APQ8096SG" },
+ { 318, "SDM630" },
{ 321, "SDM845" },
{ 341, "SDA845" },
+ { 356, "SM8250" },
};
static const char *socinfo_machine(struct device *dev, unsigned int id)
@@@ -247,7 -228,7 +247,7 @@@ static int qcom_open_##name(struct inod
\
static const struct file_operations qcom_ ##name## _ops = { \
.open = qcom_open_##name, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -275,10 -256,7 +275,10 @@@ static int qcom_show_pmic_model(struct
if (model < 0)
return -EINVAL;
- seq_printf(seq, "%s\n", pmic_models[model]);
+ if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
+ seq_printf(seq, "%s\n", pmic_models[model]);
+ else
+ seq_printf(seq, "unknown (%d)\n", model);
return 0;
}
@@@ -294,19 -272,9 +294,19 @@@ static int qcom_show_pmic_die_revision(
return 0;
}
+static int qcom_show_chip_id(struct seq_file *seq, void *p)
+{
+ struct socinfo *socinfo = seq->private;
+
+ seq_printf(seq, "%s\n", socinfo->chip_id);
+
+ return 0;
+}
+
QCOM_OPEN(build_id, qcom_show_build_id);
QCOM_OPEN(pmic_model, qcom_show_pmic_model);
QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
+QCOM_OPEN(chip_id, qcom_show_chip_id);
#define DEFINE_IMAGE_OPS(type) \
static int show_image_##type(struct seq_file *seq, void *p) \
@@@ -323,7 -291,7 +323,7 @@@ static int open_image_##type(struct ino
\
static const struct file_operations qcom_image_##type##_ops = { \
.open = open_image_##type, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -344,38 -312,7 +344,38 @@@ static void socinfo_debugfs_init(struc
qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
+ debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.fmt);
+
switch (qcom_socinfo->info.fmt) {
+ case SOCINFO_VERSION(0, 15):
+ qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
+
+ debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nmodem_supported);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 14):
+ qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
+ qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
+ qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
+ qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
+
+ debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_clusters);
+ debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ncluster_array_offset);
+ debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_defective_parts);
+ debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ndefective_parts_array_offset);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 13):
+ qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
+
+ debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nproduct_id);
+ DEBUGFS_ADD(info, chip_id);
+ /* Fall through */
case SOCINFO_VERSION(0, 12):
qcom_socinfo->info.chip_family =
__le32_to_cpu(info->chip_family);
diff --combined drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index c52540b734fd,e198779db6fc..a47d32a2166f
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@@ -9,6 -9,22 +9,6 @@@
* <jkmaline(a)cc.hut.fi>
* Copyright (c) 2002-2003, Jouni Malinen <jkmaline(a)cc.hut.fi>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
* Contact Information:
* James P. Ketrenos <ipw2100-admin(a)linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
@@@ -249,7 -265,7 +249,7 @@@ static int open_debug_level(struct inod
static const struct proc_ops debug_level_proc_ops = {
.proc_open = open_debug_level,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = write_debug_level,
.proc_release = single_release,
diff --combined drivers/usb/chipidea/debug.c
index da5d18cf6840,d734b97a7327..31a6fdcb7620
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@@ -18,7 -18,7 +18,7 @@@
#include "bits.h"
#include "otg.h"
-/**
+/*
* ci_device_show: prints information about device capabilities and status
*/
static int ci_device_show(struct seq_file *s, void *data)
@@@ -47,7 -47,7 +47,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_device);
-/**
+/*
* ci_port_test_show: reads port test mode
*/
static int ci_port_test_show(struct seq_file *s, void *data)
@@@ -67,7 -67,7 +67,7 @@@
return 0;
}
-/**
+/*
* ci_port_test_write: writes port test mode
*/
static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
@@@ -110,12 -110,12 +110,12 @@@ static int ci_port_test_open(struct ino
static const struct file_operations ci_port_test_fops = {
.open = ci_port_test_open,
.write = ci_port_test_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
-/**
+/*
* ci_qheads_show: DMA contents of all queue heads
*/
static int ci_qheads_show(struct seq_file *s, void *data)
@@@ -147,7 -147,7 +147,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_qheads);
-/**
+/*
* ci_requests_show: DMA contents of all requests currently queued (all endpts)
*/
static int ci_requests_show(struct seq_file *s, void *data)
@@@ -296,7 -296,7 +296,7 @@@ static int ci_role_open(struct inode *i
static const struct file_operations ci_role_fops = {
.open = ci_role_open,
.write = ci_role_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc2/debugfs.c
index aaafd463d72a,19a083e4f396..5a9586a6432f
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@@ -37,15 -37,15 +37,15 @@@ static ssize_t testmode_write(struct fi
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -78,19 -78,19 +78,19 @@@ static int testmode_show(struct seq_fil
case 0:
seq_puts(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_puts(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_puts(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_puts(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_puts(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_puts(s, "test_force_enable\n");
break;
default:
@@@ -109,7 -109,7 +109,7 @@@ static const struct file_operations tes
.owner = THIS_MODULE,
.open = testmode_open,
.write = testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc3/debugfs.c
index 2c7b6dd79cdf,14c075ad29f9..83e183c90ca7
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@@ -2,7 -2,7 +2,7 @@@
/**
* debugfs.c - DesignWare USB3 DRD Controller DebugFS file
*
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com
*
* Authors: Felipe Balbi <balbi(a)ti.com>,
* Sebastian Andrzej Siewior <bigeasy(a)linutronix.de>
@@@ -380,7 -380,7 +380,7 @@@ static ssize_t dwc3_lsp_write(struct fi
static const struct file_operations dwc3_lsp_fops = {
.open = dwc3_lsp_open,
.write = dwc3_lsp_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -445,7 -445,7 +445,7 @@@ static ssize_t dwc3_mode_write(struct f
static const struct file_operations dwc3_mode_fops = {
.open = dwc3_mode_open,
.write = dwc3_mode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -466,19 -466,19 +466,19 @@@ static int dwc3_testmode_show(struct se
case 0:
seq_printf(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_printf(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_printf(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_printf(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_printf(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_printf(s, "test_force_enable\n");
break;
default:
@@@ -506,15 -506,15 +506,15 @@@ static ssize_t dwc3_testmode_write(stru
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -528,7 -528,7 +528,7 @@@
static const struct file_operations dwc3_testmode_fops = {
.open = dwc3_testmode_open,
.write = dwc3_testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -620,7 -620,7 +620,7 @@@ static ssize_t dwc3_link_state_write(st
static const struct file_operations dwc3_link_state_fops = {
.open = dwc3_link_state_open,
.write = dwc3_link_state_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/gadget/udc/lpc32xx_udc.c
index e8a4637a9a17,bac74bb67290..e79f5f286cbb
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@@ -532,7 -532,7 +532,7 @@@ static int proc_udc_open(struct inode *
static const struct file_operations proc_ops = {
.owner = THIS_MODULE,
.open = proc_udc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1926,7 -1926,7 +1926,7 @@@ static const struct usb_ep_ops lpc32xx_
};
/* Send a ZLP on a non-0 IN EP */
-void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
/* Clear EP status */
udc_clearep_getsts(udc, ep->hwep_num);
@@@ -1940,7 -1940,7 +1940,7 @@@
* This function will only be called when a delayed ZLP needs to be sent out
* after a DMA transfer has filled both buffers.
*/
-void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
u32 epstatus;
struct lpc32xx_request *req;
@@@ -2986,7 -2986,7 +2986,7 @@@ static void lpc32xx_rmwkup_chg(int remo
/* Enable or disable USB remote wakeup */
}
-struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
+static struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
.vbus_drv_pol = 0,
.conn_chgb = &lpc32xx_usbd_conn_chg,
.susp_chgb = &lpc32xx_usbd_susp_chg,
diff --combined drivers/usb/host/xhci-debugfs.c
index 92e25a62fdb5,4a640031d944..8b6747b53434
--- a/drivers/usb/host/xhci-debugfs.c
+++ b/drivers/usb/host/xhci-debugfs.c
@@@ -110,7 -110,6 +110,7 @@@ static void xhci_debugfs_free_regset(st
kfree(regset);
}
+__printf(6, 7)
static void xhci_debugfs_regset(struct xhci_hcd *xhci, u32 base,
const struct debugfs_reg32 *regs,
size_t nregs, struct dentry *parent,
@@@ -249,7 -248,7 +249,7 @@@ static int xhci_ring_open(struct inode
static const struct file_operations xhci_ring_fops = {
.open = xhci_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -330,7 -329,7 +330,7 @@@ static int xhci_context_open(struct ino
static const struct file_operations xhci_context_fops = {
.open = xhci_context_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -391,7 -390,7 +391,7 @@@ static ssize_t xhci_port_write(struct f
static const struct file_operations port_fops = {
.open = xhci_port_open,
.write = xhci_port_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined fs/affs/file.c
index a26a0f96c119,7d51cc2e3dab..87d23705135b
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@@ -14,7 -14,6 +14,7 @@@
*/
#include <linux/uio.h>
+#include <linux/blkdev.h>
#include "affs.h"
static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);
@@@ -976,7 -975,6 +976,6 @@@ const struct file_operations affs_file_
.open = affs_file_open,
.release = affs_file_release,
.fsync = affs_file_fsync,
- .splice_read = generic_file_splice_read,
};
const struct inode_operations affs_file_inode_operations = {
diff --combined fs/block_dev.c
index 8ae833e00443,0aa66a6075eb..5b07f2665e41
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@@ -105,7 -105,16 +105,7 @@@ EXPORT_SYMBOL(invalidate_bdev)
static void set_init_blocksize(struct block_device *bdev)
{
- unsigned bsize = bdev_logical_block_size(bdev);
- loff_t size = i_size_read(bdev->bd_inode);
-
- while (bsize < PAGE_SIZE) {
- if (size & bsize)
- break;
- bsize <<= 1;
- }
- bdev->bd_block_size = bsize;
- bdev->bd_inode->i_blkbits = blksize_bits(bsize);
+ bdev->bd_inode->i_blkbits = blksize_bits(bdev_logical_block_size(bdev));
}
int set_blocksize(struct block_device *bdev, int size)
@@@ -119,8 -128,9 +119,8 @@@
return -EINVAL;
/* Don't change the size if it is same as current */
- if (bdev->bd_block_size != size) {
+ if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
- bdev->bd_block_size = size;
bdev->bd_inode->i_blkbits = blksize_bits(size);
kill_bdev(bdev);
}
@@@ -693,12 -703,12 +693,12 @@@ int bdev_read_page(struct block_device
if (!ops->rw_page || bdev_get_integrity(bdev))
return result;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -729,7 -739,7 +729,7 @@@ int bdev_write_page(struct block_devic
if (!ops->rw_page || bdev_get_integrity(bdev))
return -EOPNOTSUPP;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
@@@ -742,7 -752,7 +742,7 @@@
clean_page_buffers(page);
unlock_page(page);
}
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -773,6 -783,7 +773,6 @@@ static void init_once(void *foo
memset(bdev, 0, sizeof(*bdev));
mutex_init(&bdev->bd_mutex);
- INIT_LIST_HEAD(&bdev->bd_list);
#ifdef CONFIG_SYSFS
INIT_LIST_HEAD(&bdev->bd_holder_disks);
#endif
@@@ -788,6 -799,9 +788,6 @@@ static void bdev_evict_inode(struct ino
truncate_inode_pages_final(&inode->i_data);
invalidate_inode_buffers(inode); /* is it needed here? */
clear_inode(inode);
- spin_lock(&bdev_lock);
- list_del_init(&bdev->bd_list);
- spin_unlock(&bdev_lock);
/* Detach inode from wb early as bdi_put() may free bdi->wb */
inode_detach_wb(inode);
if (bdev->bd_bdi != &noop_backing_dev_info) {
@@@ -862,6 -876,8 +862,6 @@@ static int bdev_set(struct inode *inode
return 0;
}
-static LIST_HEAD(all_bdevs);
-
struct block_device *bdget(dev_t dev)
{
struct block_device *bdev;
@@@ -879,6 -895,7 +879,6 @@@
bdev->bd_contains = NULL;
bdev->bd_super = NULL;
bdev->bd_inode = inode;
- bdev->bd_block_size = i_blocksize(inode);
bdev->bd_part_count = 0;
bdev->bd_invalidated = 0;
inode->i_mode = S_IFBLK;
@@@ -886,6 -903,9 +886,6 @@@
inode->i_bdev = bdev;
inode->i_data.a_ops = &def_blk_aops;
mapping_set_gfp_mask(&inode->i_data, GFP_USER);
- spin_lock(&bdev_lock);
- list_add(&bdev->bd_list, &all_bdevs);
- spin_unlock(&bdev_lock);
unlock_new_inode(inode);
}
return bdev;
@@@ -906,14 -926,13 +906,14 @@@ EXPORT_SYMBOL(bdgrab)
long nr_blockdev_pages(void)
{
- struct block_device *bdev;
+ struct inode *inode;
long ret = 0;
- spin_lock(&bdev_lock);
- list_for_each_entry(bdev, &all_bdevs, bd_list) {
- ret += bdev->bd_inode->i_mapping->nrpages;
- }
- spin_unlock(&bdev_lock);
+
+ spin_lock(&blockdev_superblock->s_inode_list_lock);
+ list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list)
+ ret += inode->i_mapping->nrpages;
+ spin_unlock(&blockdev_superblock->s_inode_list_lock);
+
return ret;
}
@@@ -1015,28 -1034,30 +1015,28 @@@ static bool bd_may_claim(struct block_d
}
/**
- * bd_prepare_to_claim - prepare to claim a block device
+ * bd_prepare_to_claim - claim a block device
* @bdev: block device of interest
* @whole: the whole device containing @bdev, may equal @bdev
* @holder: holder trying to claim @bdev
*
- * Prepare to claim @bdev. This function fails if @bdev is already
- * claimed by another holder and waits if another claiming is in
- * progress. This function doesn't actually claim. On successful
- * return, the caller has ownership of bd_claiming and bd_holder[s].
- *
- * CONTEXT:
- * spin_lock(&bdev_lock). Might release bdev_lock, sleep and regrab
- * it multiple times.
+ * Claim @bdev. This function fails if @bdev is already claimed by another
+ * holder and waits if another claiming is in progress. return, the caller
+ * has ownership of bd_claiming and bd_holder[s].
*
* RETURNS:
* 0 if @bdev can be claimed, -EBUSY otherwise.
*/
-static int bd_prepare_to_claim(struct block_device *bdev,
- struct block_device *whole, void *holder)
+int bd_prepare_to_claim(struct block_device *bdev, struct block_device *whole,
+ void *holder)
{
retry:
+ spin_lock(&bdev_lock);
/* if someone else claimed, fail */
- if (!bd_may_claim(bdev, whole, holder))
+ if (!bd_may_claim(bdev, whole, holder)) {
+ spin_unlock(&bdev_lock);
return -EBUSY;
+ }
/* if claiming is already in progress, wait for it to finish */
if (whole->bd_claiming) {
@@@ -1047,15 -1068,13 +1047,15 @@@
spin_unlock(&bdev_lock);
schedule();
finish_wait(wq, &wait);
- spin_lock(&bdev_lock);
goto retry;
}
/* yay, all mine */
+ whole->bd_claiming = holder;
+ spin_unlock(&bdev_lock);
return 0;
}
+EXPORT_SYMBOL_GPL(bd_prepare_to_claim); /* only for the loop driver */
static struct gendisk *bdev_get_gendisk(struct block_device *bdev, int *partno)
{
@@@ -1078,6 -1097,78 +1078,6 @@@
return disk;
}
-/**
- * bd_start_claiming - start claiming a block device
- * @bdev: block device of interest
- * @holder: holder trying to claim @bdev
- *
- * @bdev is about to be opened exclusively. Check @bdev can be opened
- * exclusively and mark that an exclusive open is in progress. Each
- * successful call to this function must be matched with a call to
- * either bd_finish_claiming() or bd_abort_claiming() (which do not
- * fail).
- *
- * This function is used to gain exclusive access to the block device
- * without actually causing other exclusive open attempts to fail. It
- * should be used when the open sequence itself requires exclusive
- * access but may subsequently fail.
- *
- * CONTEXT:
- * Might sleep.
- *
- * RETURNS:
- * Pointer to the block device containing @bdev on success, ERR_PTR()
- * value on failure.
- */
-struct block_device *bd_start_claiming(struct block_device *bdev, void *holder)
-{
- struct gendisk *disk;
- struct block_device *whole;
- int partno, err;
-
- might_sleep();
-
- /*
- * @bdev might not have been initialized properly yet, look up
- * and grab the outer block device the hard way.
- */
- disk = bdev_get_gendisk(bdev, &partno);
- if (!disk)
- return ERR_PTR(-ENXIO);
-
- /*
- * Normally, @bdev should equal what's returned from bdget_disk()
- * if partno is 0; however, some drivers (floppy) use multiple
- * bdev's for the same physical device and @bdev may be one of the
- * aliases. Keep @bdev if partno is 0. This means claimer
- * tracking is broken for those devices but it has always been that
- * way.
- */
- if (partno)
- whole = bdget_disk(disk, 0);
- else
- whole = bdgrab(bdev);
-
- put_disk_and_module(disk);
- if (!whole)
- return ERR_PTR(-ENOMEM);
-
- /* prepare to claim, if successful, mark claiming in progress */
- spin_lock(&bdev_lock);
-
- err = bd_prepare_to_claim(bdev, whole, holder);
- if (err == 0) {
- whole->bd_claiming = holder;
- spin_unlock(&bdev_lock);
- return whole;
- } else {
- spin_unlock(&bdev_lock);
- bdput(whole);
- return ERR_PTR(err);
- }
-}
-EXPORT_SYMBOL(bd_start_claiming);
-
static void bd_clear_claiming(struct block_device *whole, void *holder)
{
lockdep_assert_held(&bdev_lock);
@@@ -1090,14 -1181,14 +1090,14 @@@
/**
* bd_finish_claiming - finish claiming of a block device
* @bdev: block device of interest
- * @whole: whole block device (returned from bd_start_claiming())
+ * @whole: whole block device
* @holder: holder that has claimed @bdev
*
* Finish exclusive open of a block device. Mark the device as exlusively
* open by the holder and wake up all waiters for exclusive open to finish.
*/
-void bd_finish_claiming(struct block_device *bdev, struct block_device *whole,
- void *holder)
+static void bd_finish_claiming(struct block_device *bdev,
+ struct block_device *whole, void *holder)
{
spin_lock(&bdev_lock);
BUG_ON(!bd_may_claim(bdev, whole, holder));
@@@ -1112,11 -1203,12 +1112,11 @@@
bd_clear_claiming(whole, holder);
spin_unlock(&bdev_lock);
}
-EXPORT_SYMBOL(bd_finish_claiming);
/**
* bd_abort_claiming - abort claiming of a block device
* @bdev: block device of interest
- * @whole: whole block device (returned from bd_start_claiming())
+ * @whole: whole block device
* @holder: holder that has claimed @bdev
*
* Abort claiming of a block device when the exclusive open failed. This can be
@@@ -1275,6 -1367,26 +1275,6 @@@ void bd_unlink_disk_holder(struct block
EXPORT_SYMBOL_GPL(bd_unlink_disk_holder);
#endif
-/**
- * flush_disk - invalidates all buffer-cache entries on a disk
- *
- * @bdev: struct block device to be flushed
- * @kill_dirty: flag to guide handling of dirty inodes
- *
- * Invalidates all buffer-cache entries on a disk. It should be called
- * when a disk has been changed -- either by a media change or online
- * resize.
- */
-static void flush_disk(struct block_device *bdev, bool kill_dirty)
-{
- if (__invalidate_device(bdev, kill_dirty)) {
- printk(KERN_WARNING "VFS: busy inodes on changed media or "
- "resized disk %s\n",
- bdev->bd_disk ? bdev->bd_disk->disk_name : "");
- }
- bdev->bd_invalidated = 1;
-}
-
/**
* check_disk_size_change - checks for disk size change and adjusts bdev size.
* @disk: struct gendisk to check
@@@ -1299,9 -1411,8 +1299,9 @@@ static void check_disk_size_change(stru
disk->disk_name, bdev_size, disk_size);
}
i_size_write(bdev->bd_inode, disk_size);
- if (bdev_size > disk_size)
- flush_disk(bdev, false);
+ if (bdev_size > disk_size && __invalidate_device(bdev, false))
+ pr_warn("VFS: busy inodes on resized disk %s\n",
+ disk->disk_name);
}
bdev->bd_invalidated = 0;
}
@@@ -1360,10 -1471,7 +1360,10 @@@ int check_disk_change(struct block_devi
if (!(events & DISK_EVENT_MEDIA_CHANGE))
return 0;
- flush_disk(bdev, true);
+ if (__invalidate_device(bdev, true))
+ pr_warn("VFS: busy inodes on changed media %s\n",
+ disk->disk_name);
+ bdev->bd_invalidated = 1;
if (bdops->revalidate_disk)
bdops->revalidate_disk(bdev->bd_disk);
return 1;
@@@ -1439,15 -1547,13 +1439,15 @@@ EXPORT_SYMBOL_GPL(bdev_disk_changed)
* mutex_lock_nested(whole->bd_mutex, 1)
*/
-static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
+static int __blkdev_get(struct block_device *bdev, fmode_t mode, void *holder,
+ int for_part)
{
+ struct block_device *whole = NULL, *claiming = NULL;
struct gendisk *disk;
int ret;
int partno;
int perm = 0;
- bool first_open = false;
+ bool first_open = false, unblock_events = true, need_restart;
if (mode & FMODE_READ)
perm |= MAY_READ;
@@@ -1463,36 -1569,18 +1463,36 @@@
}
restart:
-
+ need_restart = false;
ret = -ENXIO;
disk = bdev_get_gendisk(bdev, &partno);
if (!disk)
goto out;
+ if (partno) {
+ whole = bdget_disk(disk, 0);
+ if (!whole) {
+ ret = -ENOMEM;
+ goto out_put_disk;
+ }
+ }
+
+ if (!for_part && (mode & FMODE_EXCL)) {
+ WARN_ON_ONCE(!holder);
+ if (whole)
+ claiming = whole;
+ else
+ claiming = bdev;
+ ret = bd_prepare_to_claim(bdev, claiming, holder);
+ if (ret)
+ goto out_put_whole;
+ }
+
disk_block_events(disk);
mutex_lock_nested(&bdev->bd_mutex, for_part);
if (!bdev->bd_openers) {
first_open = true;
bdev->bd_disk = disk;
- bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_partno = partno;
@@@ -1505,12 -1593,20 +1505,12 @@@
ret = 0;
if (disk->fops->open) {
ret = disk->fops->open(bdev, mode);
- if (ret == -ERESTARTSYS) {
- /* Lost a race with 'disk' being
- * deleted, try again.
- * See md.c
- */
- disk_put_part(bdev->bd_part);
- bdev->bd_part = NULL;
- bdev->bd_disk = NULL;
- bdev->bd_queue = NULL;
- mutex_unlock(&bdev->bd_mutex);
- disk_unblock_events(disk);
- put_disk_and_module(disk);
- goto restart;
- }
+ /*
+ * If we lost a race with 'disk' being deleted,
+ * try again. See md.c
+ */
+ if (ret == -ERESTARTSYS)
+ need_restart = true;
}
if (!ret) {
@@@ -1531,11 -1627,18 +1531,11 @@@
if (ret)
goto out_clear;
} else {
- struct block_device *whole;
- whole = bdget_disk(disk, 0);
- ret = -ENOMEM;
- if (!whole)
- goto out_clear;
BUG_ON(for_part);
- ret = __blkdev_get(whole, mode, 1);
- if (ret) {
- bdput(whole);
+ ret = __blkdev_get(whole, mode, NULL, 1);
+ if (ret)
goto out_clear;
- }
- bdev->bd_contains = whole;
+ bdev->bd_contains = bdgrab(whole);
bdev->bd_part = disk_get_part(disk, partno);
if (!(disk->flags & GENHD_FL_UP) ||
!bdev->bd_part || !bdev->bd_part->nr_sects) {
@@@ -1564,52 -1667,27 +1564,52 @@@
bdev->bd_openers++;
if (for_part)
bdev->bd_part_count++;
+ if (claiming)
+ bd_finish_claiming(bdev, claiming, holder);
+
+ /*
+ * Block event polling for write claims if requested. Any write holder
+ * makes the write_holder state stick until all are released. This is
+ * good enough and tracking individual writeable reference is too
+ * fragile given the way @mode is used in blkdev_get/put().
+ */
+ if (claiming && (mode & FMODE_WRITE) && !bdev->bd_write_holder &&
+ (disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
+ bdev->bd_write_holder = true;
+ unblock_events = false;
+ }
mutex_unlock(&bdev->bd_mutex);
- disk_unblock_events(disk);
+
+ if (unblock_events)
+ disk_unblock_events(disk);
+
/* only one opener holds refs to the module and disk */
if (!first_open)
put_disk_and_module(disk);
+ if (whole)
+ bdput(whole);
return 0;
out_clear:
disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
- bdev->bd_queue = NULL;
if (bdev != bdev->bd_contains)
__blkdev_put(bdev->bd_contains, mode, 1);
bdev->bd_contains = NULL;
out_unlock_bdev:
+ if (claiming)
+ bd_abort_claiming(bdev, claiming, holder);
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
+ out_put_whole:
+ if (whole)
+ bdput(whole);
+ out_put_disk:
put_disk_and_module(disk);
+ if (need_restart)
+ goto restart;
out:
-
return ret;
}
@@@ -1634,11 -1712,50 +1634,11 @@@
*/
int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder)
{
- struct block_device *whole = NULL;
int res;
- WARN_ON_ONCE((mode & FMODE_EXCL) && !holder);
-
- if ((mode & FMODE_EXCL) && holder) {
- whole = bd_start_claiming(bdev, holder);
- if (IS_ERR(whole)) {
- bdput(bdev);
- return PTR_ERR(whole);
- }
- }
-
- res = __blkdev_get(bdev, mode, 0);
-
- if (whole) {
- struct gendisk *disk = whole->bd_disk;
-
- /* finish claiming */
- mutex_lock(&bdev->bd_mutex);
- if (!res)
- bd_finish_claiming(bdev, whole, holder);
- else
- bd_abort_claiming(bdev, whole, holder);
- /*
- * Block event polling for write claims if requested. Any
- * write holder makes the write_holder state stick until
- * all are released. This is good enough and tracking
- * individual writeable reference is too fragile given the
- * way @mode is used in blkdev_get/put().
- */
- if (!res && (mode & FMODE_WRITE) && !bdev->bd_write_holder &&
- (disk->flags & GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE)) {
- bdev->bd_write_holder = true;
- disk_block_events(disk);
- }
-
- mutex_unlock(&bdev->bd_mutex);
- bdput(whole);
- }
-
+ res =__blkdev_get(bdev, mode, holder, 0);
if (res)
bdput(bdev);
-
return res;
}
EXPORT_SYMBOL(blkdev_get);
@@@ -1734,7 -1851,7 +1734,7 @@@ static int blkdev_open(struct inode * i
*/
filp->f_flags |= O_LARGEFILE;
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
if (filp->f_flags & O_NDELAY)
filp->f_mode |= FMODE_NDELAY;
@@@ -2043,7 -2160,6 +2043,6 @@@ const struct file_operations def_blk_fo
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_blkdev_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = blkdev_fallocate,
};
diff --combined fs/btrfs/file.c
index e050bd96e6c6,f3c81478b04e..b4ec68cc8ea1
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@@ -500,18 -500,18 +500,18 @@@ next
* this also makes the decision about creating an inline extent vs
* doing real data extents, marking pages dirty and delalloc as required.
*/
-int btrfs_dirty_pages(struct inode *inode, struct page **pages,
+int btrfs_dirty_pages(struct btrfs_inode *inode, struct page **pages,
size_t num_pages, loff_t pos, size_t write_bytes,
struct extent_state **cached)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_fs_info *fs_info = inode->root->fs_info;
int err = 0;
int i;
u64 num_bytes;
u64 start_pos;
u64 end_of_last_block;
u64 end_pos = pos + write_bytes;
- loff_t isize = i_size_read(inode);
+ loff_t isize = i_size_read(&inode->vfs_inode);
unsigned int extra_bits = 0;
start_pos = pos & ~((u64) fs_info->sectorsize - 1);
@@@ -524,13 -524,13 +524,13 @@@
* The pages may have already been dirty, clear out old accounting so
* we can set things up properly
*/
- clear_extent_bit(&BTRFS_I(inode)->io_tree, start_pos, end_of_last_block,
+ clear_extent_bit(&inode->io_tree, start_pos, end_of_last_block,
EXTENT_DELALLOC | EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG,
0, 0, cached);
- if (!btrfs_is_free_space_inode(BTRFS_I(inode))) {
+ if (!btrfs_is_free_space_inode(inode)) {
if (start_pos >= isize &&
- !(BTRFS_I(inode)->flags & BTRFS_INODE_PREALLOC)) {
+ !(inode->flags & BTRFS_INODE_PREALLOC)) {
/*
* There can't be any extents following eof in this case
* so just set the delalloc new bit for the range
@@@ -538,7 -538,8 +538,7 @@@
*/
extra_bits |= EXTENT_DELALLOC_NEW;
} else {
- err = btrfs_find_new_delalloc_bytes(BTRFS_I(inode),
- start_pos,
+ err = btrfs_find_new_delalloc_bytes(inode, start_pos,
num_bytes, cached);
if (err)
return err;
@@@ -563,7 -564,7 +563,7 @@@
* at this time.
*/
if (end_pos > isize)
- i_size_write(inode, end_pos);
+ i_size_write(&inode->vfs_inode, end_pos);
return 0;
}
@@@ -730,7 -731,7 +730,7 @@@ next
* is deleted from the tree.
*/
int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
+ struct btrfs_root *root, struct btrfs_inode *inode,
struct btrfs_path *path, u64 start, u64 end,
u64 *drop_end, int drop_cache,
int replace_extent,
@@@ -743,8 -744,7 +743,8 @@@
struct btrfs_ref ref = { 0 };
struct btrfs_key key;
struct btrfs_key new_key;
- u64 ino = btrfs_ino(BTRFS_I(inode));
+ struct inode *vfs_inode = &inode->vfs_inode;
+ u64 ino = btrfs_ino(inode);
u64 search_start = start;
u64 disk_bytenr = 0;
u64 num_bytes = 0;
@@@ -762,9 -762,9 +762,9 @@@
int leafs_visited = 0;
if (drop_cache)
- btrfs_drop_extent_cache(BTRFS_I(inode), start, end - 1, 0);
+ btrfs_drop_extent_cache(inode, start, end - 1, 0);
- if (start >= BTRFS_I(inode)->disk_i_size && !replace_extent)
+ if (start >= inode->disk_i_size && !replace_extent)
modify_tree = 0;
update_refs = (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) ||
@@@ -935,7 -935,7 +935,7 @@@ next_slot
extent_end - end);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, end - key.offset);
+ inode_sub_bytes(vfs_inode, end - key.offset);
break;
}
@@@ -955,7 -955,7 +955,7 @@@
start - key.offset);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, extent_end - start);
+ inode_sub_bytes(vfs_inode, extent_end - start);
if (end == extent_end)
break;
@@@ -979,7 -979,7 +979,7 @@@ delete_extent_item
if (update_refs &&
extent_type == BTRFS_FILE_EXTENT_INLINE) {
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
extent_end = ALIGN(extent_end,
fs_info->sectorsize);
@@@ -993,7 -993,7 +993,7 @@@
key.offset - extent_offset);
ret = btrfs_free_extent(trans, &ref);
BUG_ON(ret); /* -ENOMEM */
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
}
@@@ -1082,8 -1082,8 +1082,8 @@@ int btrfs_drop_extents(struct btrfs_tra
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- ret = __btrfs_drop_extents(trans, root, inode, path, start, end, NULL,
- drop_cache, 0, 0, NULL);
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path, start,
+ end, NULL, drop_cache, 0, 0, NULL);
btrfs_free_path(path);
return ret;
}
@@@ -1532,8 -1532,8 +1532,8 @@@ lock_and_cleanup_extent_if_need(struct
return ret;
}
-static noinline int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
- size_t *write_bytes, bool nowait)
+static int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes, bool nowait)
{
struct btrfs_fs_info *fs_info = inode->root->fs_info;
struct btrfs_root *root = inode->root;
@@@ -1541,9 -1541,6 +1541,9 @@@
u64 num_bytes;
int ret;
+ if (!(inode->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC)))
+ return 0;
+
if (!nowait && !btrfs_drew_try_write_lock(&root->snapshot_lock))
return -EAGAIN;
@@@ -1586,42 -1583,6 +1586,42 @@@ out_unlock
return ret;
}
+static int check_nocow_nolock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, true);
+}
+
+/*
+ * Check if we can do nocow write into the range [@pos, @pos + @write_bytes)
+ *
+ * @pos: File offset
+ * @write_bytes: The length to write, will be updated to the nocow writeable
+ * range
+ *
+ * This function will flush ordered extents in the range to ensure proper
+ * nocow checks.
+ *
+ * Return:
+ * >0 and update @write_bytes if we can do nocow write
+ * 0 if we can't do nocow write
+ * -EAGAIN if we can't get the needed lock or there are ordered extents
+ * for * (nowait == true) case
+ * <0 if other error happened
+ *
+ * NOTE: Callers need to release the lock by btrfs_check_nocow_unlock().
+ */
+int btrfs_check_nocow_lock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, false);
+}
+
+void btrfs_check_nocow_unlock(struct btrfs_inode *inode)
+{
+ btrfs_drew_write_unlock(&inode->root->snapshot_lock);
+}
+
static noinline ssize_t btrfs_buffered_write(struct kiocb *iocb,
struct iov_iter *i)
{
@@@ -1629,6 -1590,7 +1629,6 @@@
loff_t pos = iocb->ki_pos;
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct page **pages = NULL;
struct extent_changeset *data_reserved = NULL;
u64 release_bytes = 0;
@@@ -1681,12 -1643,13 +1681,12 @@@
fs_info->sectorsize);
extent_changeset_release(data_reserved);
- ret = btrfs_check_data_free_space(inode, &data_reserved, pos,
+ ret = btrfs_check_data_free_space(BTRFS_I(inode),
+ &data_reserved, pos,
write_bytes);
if (ret < 0) {
- if ((BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) &&
- check_can_nocow(BTRFS_I(inode), pos,
- &write_bytes, false) > 0) {
+ if (btrfs_check_nocow_lock(BTRFS_I(inode), pos,
+ &write_bytes) > 0) {
/*
* For nodata cow case, no need to reserve
* data space.
@@@ -1711,11 -1674,11 +1711,11 @@@
reserve_bytes);
if (ret) {
if (!only_release_metadata)
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, pos,
write_bytes);
else
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
break;
}
@@@ -1785,7 -1748,7 +1785,7 @@@ again
__pos = round_down(pos,
fs_info->sectorsize) +
(dirty_pages << PAGE_SHIFT);
- btrfs_delalloc_release_space(inode,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
data_reserved, __pos,
release_bytes, true);
}
@@@ -1795,9 -1758,8 +1795,9 @@@
fs_info->sectorsize);
if (copied > 0)
- ret = btrfs_dirty_pages(inode, pages, dirty_pages,
- pos, copied, &cached_state);
+ ret = btrfs_dirty_pages(BTRFS_I(inode), pages,
+ dirty_pages, pos, copied,
+ &cached_state);
/*
* If we have not locked the extent range, because the range's
@@@ -1820,7 -1782,7 +1820,7 @@@
release_bytes = 0;
if (only_release_metadata)
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
if (only_release_metadata && copied > 0) {
lockstart = round_down(pos,
@@@ -1838,6 -1800,8 +1838,6 @@@
cond_resched();
balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1)
- btrfs_btree_balance_dirty(fs_info);
pos += copied;
num_written += copied;
@@@ -1847,12 -1811,11 +1847,12 @@@
if (release_bytes) {
if (only_release_metadata) {
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
btrfs_delalloc_release_metadata(BTRFS_I(inode),
release_bytes, true);
} else {
- btrfs_delalloc_release_space(inode, data_reserved,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
+ data_reserved,
round_down(pos, fs_info->sectorsize),
release_bytes, true);
}
@@@ -1872,7 -1835,7 +1872,7 @@@ static ssize_t __btrfs_direct_write(str
loff_t endbyte;
int err;
- written = generic_file_direct_write(iocb, from);
+ written = btrfs_direct_IO(iocb, from);
if (written < 0 || !iov_iter_count(from))
return written;
@@@ -1963,8 -1926,10 +1963,8 @@@ static ssize_t btrfs_file_write_iter(st
* We will allocate space in case nodatacow is not set,
* so bail
*/
- if (!(BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) ||
- check_can_nocow(BTRFS_I(inode), pos, &nocow_bytes,
- true) <= 0) {
+ if (check_nocow_nolock(BTRFS_I(inode), pos, &nocow_bytes)
+ <= 0) {
inode_unlock(inode);
return -EAGAIN;
}
@@@ -2633,7 -2598,7 +2633,7 @@@ int btrfs_punch_hole_range(struct inod
cur_offset = start;
while (cur_offset < end) {
- ret = __btrfs_drop_extents(trans, root, inode, path,
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path,
cur_offset, end + 1, &drop_end,
1, 0, 0, NULL);
if (ret != -ENOSPC) {
@@@ -3211,14 -3176,14 +3211,14 @@@ reserve_space
if (ret < 0)
goto out;
space_reserved = true;
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- alloc_start, bytes_to_reserve);
- if (ret)
- goto out;
ret = btrfs_punch_hole_lock_range(inode, lockstart, lockend,
&cached_state);
if (ret)
goto out;
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), &data_reserved,
+ alloc_start, bytes_to_reserve);
+ if (ret)
+ goto out;
ret = btrfs_prealloc_file_range(inode, mode, alloc_start,
alloc_end - alloc_start,
i_blocksize(inode),
@@@ -3234,7 -3199,7 +3234,7 @@@
ret = btrfs_fallocate_update_isize(inode, offset + len, mode);
out:
if (ret && space_reserved)
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
alloc_start, bytes_to_reserve);
extent_changeset_free(data_reserved);
@@@ -3385,9 -3350,8 +3385,9 @@@ static long btrfs_fallocate(struct fil
free_extent_map(em);
break;
}
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- cur_offset, last_byte - cur_offset);
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode),
+ &data_reserved, cur_offset,
+ last_byte - cur_offset);
if (ret < 0) {
cur_offset = last_byte;
free_extent_map(em);
@@@ -3399,9 -3363,8 +3399,9 @@@
* range, free reserved data space first, otherwise
* it'll result in false ENOSPC error.
*/
- btrfs_free_reserved_data_space(inode, data_reserved,
- cur_offset, last_byte - cur_offset);
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
+ data_reserved, cur_offset,
+ last_byte - cur_offset);
}
free_extent_map(em);
cur_offset = last_byte;
@@@ -3418,7 -3381,7 +3418,7 @@@
range->len, i_blocksize(inode),
offset + len, &alloc_hint);
else
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, range->start,
range->len);
list_del(&range->list);
@@@ -3439,7 -3402,7 +3439,7 @@@ out
inode_unlock(inode);
/* Let go of our reservation. */
if (ret != 0 && !(mode & FALLOC_FL_ZERO_RANGE))
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
cur_offset, alloc_end - cur_offset);
extent_changeset_free(data_reserved);
return ret;
@@@ -3537,31 -3500,13 +3537,30 @@@ static loff_t btrfs_file_llseek(struct
static int btrfs_file_open(struct inode *inode, struct file *filp)
{
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return generic_file_open(inode, filp);
}
+static ssize_t btrfs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
+{
+ ssize_t ret = 0;
+
+ if (iocb->ki_flags & IOCB_DIRECT) {
+ struct inode *inode = file_inode(iocb->ki_filp);
+
+ inode_lock_shared(inode);
+ ret = btrfs_direct_IO(iocb, to);
+ inode_unlock_shared(inode);
+ if (ret < 0)
+ return ret;
+ }
+
+ return generic_file_buffered_read(iocb, to, ret);
+}
+
const struct file_operations btrfs_file_operations = {
.llseek = btrfs_file_llseek,
- .read_iter = generic_file_read_iter,
+ .read_iter = btrfs_file_read_iter,
- .splice_read = generic_file_splice_read,
.write_iter = btrfs_file_write_iter,
.splice_write = iter_file_splice_write,
.mmap = btrfs_file_mmap,
diff --combined fs/debugfs/file.c
index b167d2d02148,dcd7bdaf6741..e2e07eec50f1
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@@ -231,6 -231,10 +231,10 @@@ FULL_PROXY_FUNC(read, ssize_t, filp
loff_t *ppos),
ARGS(filp, buf, size, ppos));
+ FULL_PROXY_FUNC(read_iter, ssize_t, iocb->ki_filp,
+ PROTO(struct kiocb *iocb, struct iov_iter *iter),
+ ARGS(iocb, iter));
+
FULL_PROXY_FUNC(write, ssize_t, filp,
PROTO(struct file *filp, const char __user *buf, size_t size,
loff_t *ppos),
@@@ -273,7 -277,7 +277,7 @@@ static int full_proxy_release(struct in
r = real_fops->release(inode, filp);
replace_fops(filp, d_inode(dentry)->i_fop);
- kfree((void *)proxy_fops);
+ kfree(proxy_fops);
fops_put(real_fops);
return r;
}
@@@ -286,6 -290,8 +290,8 @@@ static void __full_proxy_fops_init(stru
proxy_fops->llseek = full_proxy_llseek;
if (real_fops->read)
proxy_fops->read = full_proxy_read;
+ if (real_fops->read_iter)
+ proxy_fops->read_iter = full_proxy_read_iter;
if (real_fops->write)
proxy_fops->write = full_proxy_write;
if (real_fops->poll)
@@@ -918,6 -924,11 +924,6 @@@ struct dentry *debugfs_create_blob(cons
}
EXPORT_SYMBOL_GPL(debugfs_create_blob);
-struct array_data {
- void *array;
- u32 elements;
-};
-
static size_t u32_format_array(char *buf, size_t bufsize,
u32 *array, int array_size)
{
@@@ -938,8 -949,8 +944,8 @@@
static int u32_array_open(struct inode *inode, struct file *file)
{
- struct array_data *data = inode->i_private;
- int size, elements = data->elements;
+ struct debugfs_u32_array *data = inode->i_private;
+ int size, elements = data->n_elements;
char *buf;
/*
@@@ -954,7 -965,7 +960,7 @@@
buf[size] = 0;
file->private_data = buf;
- u32_format_array(buf, size, data->array, data->elements);
+ u32_format_array(buf, size, data->array, data->n_elements);
return nonseekable_open(inode, file);
}
@@@ -991,7 -1002,8 +997,7 @@@ static const struct file_operations u32
* @parent: a pointer to the parent dentry for this file. This should be a
* directory dentry if set. If this parameter is %NULL, then the
* file will be created in the root of the debugfs filesystem.
- * @array: u32 array that provides data.
- * @elements: total number of elements in the array.
+ * @array: wrapper struct containing data pointer and size of the array.
*
* This function creates a file in debugfs with the given name that exports
* @array as data. If the @mode variable is so set it can be read from.
@@@ -999,10 -1011,17 +1005,10 @@@
* Once array is created its size can not be changed.
*/
void debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent, u32 *array, u32 elements)
+ struct dentry *parent,
+ struct debugfs_u32_array *array)
{
- struct array_data *data = kmalloc(sizeof(*data), GFP_KERNEL);
-
- if (data == NULL)
- return;
-
- data->array = array;
- data->elements = elements;
-
- debugfs_create_file_unsafe(name, mode, parent, data, &u32_array_fops);
+ debugfs_create_file_unsafe(name, mode, parent, array, &u32_array_fops);
}
EXPORT_SYMBOL_GPL(debugfs_create_u32_array);
@@@ -1067,7 -1086,7 +1073,7 @@@ static int debugfs_open_regset32(struc
static const struct file_operations fops_regset32 = {
.open = debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1113,7 -1132,7 +1119,7 @@@ static const struct file_operations deb
.owner = THIS_MODULE,
.open = debugfs_devm_entry_open,
.release = single_release,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek
};
diff --combined fs/exfat/file.c
index 6bdabfd4b134,8fe5df8a9ccb..f71b599f9bfe
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@@ -154,7 -154,6 +154,7 @@@ int __exfat_truncate(struct inode *inod
struct timespec64 ts;
struct exfat_dentry *ep, *ep2;
struct exfat_entry_set_cache *es;
+ int err;
es = exfat_get_dentry_set(sb, &(ei->dir), ei->entry,
ES_ALL_ENTRIES);
@@@ -177,7 -176,7 +177,7 @@@
ep2->dentry.stream.size = 0;
} else {
ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
- ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+ ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
}
if (new_size == 0) {
@@@ -189,9 -188,7 +189,9 @@@
}
exfat_update_dir_chksum_with_entry_set(es);
- exfat_free_dentry_set(es, inode_needs_sync(inode));
+ err = exfat_free_dentry_set(es, inode_needs_sync(inode));
+ if (err)
+ return err;
}
/* cut off from the FAT chain */
@@@ -372,7 -369,6 +372,6 @@@ const struct file_operations exfat_file
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = exfat_file_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/ext4/file.c
index 8f6324eb6b27,f5dc9a4e0937..cdfc8c6919c5
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@@ -53,7 -53,6 +53,7 @@@ static ssize_t ext4_dio_read_iter(struc
{
ssize_t ret;
struct inode *inode = file_inode(iocb->ki_filp);
+ unsigned int flags = 0;
if (iocb->ki_flags & IOCB_NOWAIT) {
if (!inode_trylock_shared(inode))
@@@ -75,11 -74,8 +75,11 @@@
return generic_file_read_iter(iocb, to);
}
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, to, &ext4_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ flags);
inode_unlock_shared(inode);
file_accessed(iocb->ki_filp);
@@@ -461,7 -457,6 +461,7 @@@ static ssize_t ext4_dio_write_iter(stru
const struct iomap_ops *iomap_ops = &ext4_iomap_ops;
bool extend = false, unaligned_io = false;
bool ilock_shared = true;
+ unsigned int flags = 0;
/*
* We initially start with shared inode lock unless it is
@@@ -545,12 -540,10 +545,12 @@@
ext4_journal_stop(handle);
}
+ if (is_sync_kiocb(iocb) || unaligned_io || extend)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
if (ilock_shared)
iomap_ops = &ext4_iomap_overwrite_ops;
ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io || extend);
+ flags);
if (extend)
ret = ext4_handle_inode_extension(inode, offset, ret, count);
@@@ -903,7 -896,6 +903,6 @@@ const struct file_operations ext4_file_
.release = ext4_release_file,
.fsync = ext4_sync_file,
.get_unmapped_area = thp_get_unmapped_area,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = ext4_fallocate,
};
diff --combined fs/f2fs/file.c
index 521987cd8772,6b34caf13b56..5719577f68ae
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@@ -105,11 -105,11 +105,11 @@@ static vm_fault_t f2fs_vm_page_mkwrite(
if (need_alloc) {
/* block allocation */
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = f2fs_get_block(&dn, page->index);
f2fs_put_dnode(&dn);
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
@@@ -1373,6 -1373,8 +1373,6 @@@ static int f2fs_collapse_range(struct i
truncate_pagecache(inode, offset);
new_size = i_size_read(inode) - len;
- truncate_pagecache(inode, new_size);
-
ret = f2fs_truncate_blocks(inode, new_size, true);
up_write(&F2FS_I(inode)->i_mmap_sem);
if (!ret)
@@@ -1658,7 -1660,7 +1658,7 @@@ next_alloc
map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f2fs_lock_op(sbi);
- f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+ f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA);
f2fs_unlock_op(sbi);
err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
@@@ -2525,11 -2527,6 +2525,11 @@@ do_more
}
ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
+ if (ret) {
+ if (ret == -EBUSY)
+ ret = -EAGAIN;
+ goto out;
+ }
range.start += BLKS_PER_SEC(sbi);
if (range.start <= end)
goto do_more;
@@@ -3362,7 -3359,7 +3362,7 @@@ static int f2fs_ioc_measure_verity(stru
return fsverity_ioctl_measure(filp, (void __user *)arg);
}
-static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@@ -3388,7 -3385,7 +3388,7 @@@
return err;
}
-static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@@ -3767,11 -3764,11 +3767,11 @@@ long f2fs_ioctl(struct file *filp, unsi
return -ENOSPC;
switch (cmd) {
- case F2FS_IOC_GETFLAGS:
+ case FS_IOC_GETFLAGS:
return f2fs_ioc_getflags(filp, arg);
- case F2FS_IOC_SETFLAGS:
+ case FS_IOC_SETFLAGS:
return f2fs_ioc_setflags(filp, arg);
- case F2FS_IOC_GETVERSION:
+ case FS_IOC_GETVERSION:
return f2fs_ioc_getversion(filp, arg);
case F2FS_IOC_START_ATOMIC_WRITE:
return f2fs_ioc_start_atomic_write(filp);
@@@ -3787,11 -3784,11 +3787,11 @@@
return f2fs_ioc_shutdown(filp, arg);
case FITRIM:
return f2fs_ioc_fitrim(filp, arg);
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
return f2fs_ioc_set_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
return f2fs_ioc_get_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
return f2fs_ioc_get_encryption_policy_ex(filp, arg);
@@@ -3819,9 -3816,9 +3819,9 @@@
return f2fs_ioc_flush_device(filp, arg);
case F2FS_IOC_GET_FEATURES:
return f2fs_ioc_get_features(filp, arg);
- case F2FS_IOC_FSGETXATTR:
+ case FS_IOC_FSGETXATTR:
return f2fs_ioc_fsgetxattr(filp, arg);
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSSETXATTR:
return f2fs_ioc_fssetxattr(filp, arg);
case F2FS_IOC_GET_PIN_FILE:
return f2fs_ioc_get_pin_file(filp, arg);
@@@ -3835,10 -3832,10 +3835,10 @@@
return f2fs_ioc_enable_verity(filp, arg);
case FS_IOC_MEASURE_VERITY:
return f2fs_ioc_measure_verity(filp, arg);
- case F2FS_IOC_GET_VOLUME_NAME:
- return f2fs_get_volume_name(filp, arg);
- case F2FS_IOC_SET_VOLUME_NAME:
- return f2fs_set_volume_name(filp, arg);
+ case FS_IOC_GETFSLABEL:
+ return f2fs_ioc_getfslabel(filp, arg);
+ case FS_IOC_SETFSLABEL:
+ return f2fs_ioc_setfslabel(filp, arg);
case F2FS_IOC_GET_COMPRESS_BLOCKS:
return f2fs_get_compress_blocks(filp, arg);
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
@@@ -3969,14 -3966,14 +3969,14 @@@ out
long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
- case F2FS_IOC32_GETFLAGS:
- cmd = F2FS_IOC_GETFLAGS;
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
break;
- case F2FS_IOC32_SETFLAGS:
- cmd = F2FS_IOC_SETFLAGS;
+ case FS_IOC32_SETFLAGS:
+ cmd = FS_IOC_SETFLAGS;
break;
- case F2FS_IOC32_GETVERSION:
- cmd = F2FS_IOC_GETVERSION;
+ case FS_IOC32_GETVERSION:
+ cmd = FS_IOC_GETVERSION;
break;
case F2FS_IOC_START_ATOMIC_WRITE:
case F2FS_IOC_COMMIT_ATOMIC_WRITE:
@@@ -3985,9 -3982,9 +3985,9 @@@
case F2FS_IOC_ABORT_VOLATILE_WRITE:
case F2FS_IOC_SHUTDOWN:
case FITRIM:
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
case FS_IOC_ADD_ENCRYPTION_KEY:
case FS_IOC_REMOVE_ENCRYPTION_KEY:
@@@ -4001,16 -3998,16 +4001,16 @@@
case F2FS_IOC_MOVE_RANGE:
case F2FS_IOC_FLUSH_DEVICE:
case F2FS_IOC_GET_FEATURES:
- case F2FS_IOC_FSGETXATTR:
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSGETXATTR:
+ case FS_IOC_FSSETXATTR:
case F2FS_IOC_GET_PIN_FILE:
case F2FS_IOC_SET_PIN_FILE:
case F2FS_IOC_PRECACHE_EXTENTS:
case F2FS_IOC_RESIZE_FS:
case FS_IOC_ENABLE_VERITY:
case FS_IOC_MEASURE_VERITY:
- case F2FS_IOC_GET_VOLUME_NAME:
- case F2FS_IOC_SET_VOLUME_NAME:
+ case FS_IOC_GETFSLABEL:
+ case FS_IOC_SETFSLABEL:
case F2FS_IOC_GET_COMPRESS_BLOCKS:
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
@@@ -4036,6 -4033,5 +4036,5 @@@ const struct file_operations f2fs_file_
#ifdef CONFIG_COMPAT
.compat_ioctl = f2fs_compat_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/fuse/file.c
index 6611ef3269a8,a404e147bb2c..e727562b9461
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@@ -18,7 -18,6 +18,7 @@@
#include <linux/swap.h>
#include <linux/falloc.h>
#include <linux/uio.h>
+#include <linux/fs.h>
static struct page **fuse_pages_alloc(unsigned int npages, gfp_t flags,
struct fuse_page_desc **desc)
@@@ -1587,6 -1586,7 +1587,6 @@@ static void fuse_writepage_finish(struc
struct backing_dev_info *bdi = inode_to_bdi(inode);
int i;
- rb_erase(&wpa->writepages_entry, &fi->writepages);
for (i = 0; i < ap->num_pages; i++) {
dec_wb_stat(&bdi->wb, WB_WRITEBACK);
dec_node_page_state(ap->pages[i], NR_WRITEBACK_TEMP);
@@@ -1637,7 -1637,6 +1637,7 @@@ __acquires(fi->lock
out_free:
fi->writectr--;
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
fuse_writepage_finish(fc, wpa);
spin_unlock(&fi->lock);
@@@ -1675,8 -1674,7 +1675,8 @@@ __acquires(fi->lock
}
}
-static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+static struct fuse_writepage_args *fuse_insert_writeback(struct rb_root *root,
+ struct fuse_writepage_args *wpa)
{
pgoff_t idx_from = wpa->ia.write.in.offset >> PAGE_SHIFT;
pgoff_t idx_to = idx_from + wpa->ia.ap.num_pages - 1;
@@@ -1699,17 -1697,11 +1699,17 @@@
else if (idx_to < curr_index)
p = &(*p)->rb_left;
else
- return (void) WARN_ON(true);
+ return curr;
}
rb_link_node(&wpa->writepages_entry, parent, p);
rb_insert_color(&wpa->writepages_entry, root);
+ return NULL;
+}
+
+static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+{
+ WARN_ON(fuse_insert_writeback(root, wpa));
}
static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_args *args,
@@@ -1722,7 -1714,6 +1722,7 @@@
mapping_set_error(inode->i_mapping, error);
spin_lock(&fi->lock);
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
while (wpa->next) {
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_write_in *inarg = &wpa->ia.write.in;
@@@ -1961,14 -1952,14 +1961,14 @@@ static void fuse_writepages_send(struc
}
/*
- * First recheck under fi->lock if the offending offset is still under
- * writeback. If yes, then iterate auxiliary write requests, to see if there's
+ * Check under fi->lock if the page is under writeback, and insert it onto the
+ * rb_tree if not. Otherwise iterate auxiliary write requests, to see if there's
* one already added for a page at this offset. If there's none, then insert
* this new request onto the auxiliary list, otherwise reuse the existing one by
- * copying the new page contents over to the old temporary page.
+ * swapping the new temp page with the old one.
*/
-static bool fuse_writepage_in_flight(struct fuse_writepage_args *new_wpa,
- struct page *page)
+static bool fuse_writepage_add(struct fuse_writepage_args *new_wpa,
+ struct page *page)
{
struct fuse_inode *fi = get_fuse_inode(new_wpa->inode);
struct fuse_writepage_args *tmp;
@@@ -1976,15 -1967,17 +1976,15 @@@
struct fuse_args_pages *new_ap = &new_wpa->ia.ap;
WARN_ON(new_ap->num_pages != 0);
+ new_ap->num_pages = 1;
spin_lock(&fi->lock);
- rb_erase(&new_wpa->writepages_entry, &fi->writepages);
- old_wpa = fuse_find_writeback(fi, page->index, page->index);
+ old_wpa = fuse_insert_writeback(&fi->writepages, new_wpa);
if (!old_wpa) {
- tree_insert(&fi->writepages, new_wpa);
spin_unlock(&fi->lock);
- return false;
+ return true;
}
- new_ap->num_pages = 1;
for (tmp = old_wpa->next; tmp; tmp = tmp->next) {
pgoff_t curr_index;
@@@ -2013,41 -2006,7 +2013,41 @@@
fuse_writepage_free(new_wpa);
}
- return true;
+ return false;
+}
+
+static bool fuse_writepage_need_send(struct fuse_conn *fc, struct page *page,
+ struct fuse_args_pages *ap,
+ struct fuse_fill_wb_data *data)
+{
+ WARN_ON(!ap->num_pages);
+
+ /*
+ * Being under writeback is unlikely but possible. For example direct
+ * read to an mmaped fuse file will set the page dirty twice; once when
+ * the pages are faulted with get_user_pages(), and then after the read
+ * completed.
+ */
+ if (fuse_page_is_writeback(data->inode, page->index))
+ return true;
+
+ /* Reached max pages */
+ if (ap->num_pages == fc->max_pages)
+ return true;
+
+ /* Reached max write bytes */
+ if ((ap->num_pages + 1) * PAGE_SIZE > fc->max_write)
+ return true;
+
+ /* Discontinuity */
+ if (data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)
+ return true;
+
+ /* Need to grow the pages array? If so, did the expansion fail? */
+ if (ap->num_pages == data->max_pages && !fuse_pages_realloc(data))
+ return true;
+
+ return false;
}
static int fuse_writepages_fill(struct page *page,
@@@ -2060,6 -2019,7 +2060,6 @@@
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_conn *fc = get_fuse_conn(inode);
struct page *tmp_page;
- bool is_writeback;
int err;
if (!data->ff) {
@@@ -2069,9 -2029,25 +2069,9 @@@
goto out_unlock;
}
- /*
- * Being under writeback is unlikely but possible. For example direct
- * read to an mmaped fuse file will set the page dirty twice; once when
- * the pages are faulted with get_user_pages(), and then after the read
- * completed.
- */
- is_writeback = fuse_page_is_writeback(inode, page->index);
-
- if (wpa && ap->num_pages &&
- (is_writeback || ap->num_pages == fc->max_pages ||
- (ap->num_pages + 1) * PAGE_SIZE > fc->max_write ||
- data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)) {
+ if (wpa && fuse_writepage_need_send(fc, page, ap, data)) {
fuse_writepages_send(data);
data->wpa = NULL;
- } else if (wpa && ap->num_pages == data->max_pages) {
- if (!fuse_pages_realloc(data)) {
- fuse_writepages_send(data);
- data->wpa = NULL;
- }
}
err = -ENOMEM;
@@@ -2109,6 -2085,12 +2109,6 @@@
ap->args.end = fuse_writepage_end;
ap->num_pages = 0;
wpa->inode = inode;
-
- spin_lock(&fi->lock);
- tree_insert(&fi->writepages, wpa);
- spin_unlock(&fi->lock);
-
- data->wpa = wpa;
}
set_page_writeback(page);
@@@ -2116,25 -2098,26 +2116,25 @@@
ap->pages[ap->num_pages] = tmp_page;
ap->descs[ap->num_pages].offset = 0;
ap->descs[ap->num_pages].length = PAGE_SIZE;
+ data->orig_pages[ap->num_pages] = page;
inc_wb_stat(&inode_to_bdi(inode)->wb, WB_WRITEBACK);
inc_node_page_state(tmp_page, NR_WRITEBACK_TEMP);
err = 0;
- if (is_writeback && fuse_writepage_in_flight(wpa, page)) {
+ if (data->wpa) {
+ /*
+ * Protected by fi->lock against concurrent access by
+ * fuse_page_is_writeback().
+ */
+ spin_lock(&fi->lock);
+ ap->num_pages++;
+ spin_unlock(&fi->lock);
+ } else if (fuse_writepage_add(wpa, page)) {
+ data->wpa = wpa;
+ } else {
end_page_writeback(page);
- data->wpa = NULL;
- goto out_unlock;
}
- data->orig_pages[ap->num_pages] = page;
-
- /*
- * Protected by fi->lock against concurrent access by
- * fuse_page_is_writeback().
- */
- spin_lock(&fi->lock);
- ap->num_pages++;
- spin_unlock(&fi->lock);
-
out_unlock:
unlock_page(page);
@@@ -2166,8 -2149,10 +2166,8 @@@ static int fuse_writepages(struct addre
err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data);
if (data.wpa) {
- /* Ignore errors if we can write at least one page */
WARN_ON(!data.wpa->ia.ap.num_pages);
fuse_writepages_send(&data);
- err = 0;
}
if (data.ff)
fuse_file_put(data.ff, false, false);
@@@ -2776,16 -2761,7 +2776,16 @@@ long fuse_do_ioctl(struct file *file, u
struct iovec *iov = iov_page;
iov->iov_base = (void __user *)arg;
- iov->iov_len = _IOC_SIZE(cmd);
+
+ switch (cmd) {
+ case FS_IOC_GETFLAGS:
+ case FS_IOC_SETFLAGS:
+ iov->iov_len = sizeof(int);
+ break;
+ default:
+ iov->iov_len = _IOC_SIZE(cmd);
+ break;
+ }
if (_IOC_DIR(cmd) & _IOC_WRITE) {
in_iov = iov;
@@@ -2987,7 -2963,7 +2987,7 @@@ static void fuse_register_polled_file(s
{
spin_lock(&fc->lock);
if (RB_EMPTY_NODE(&ff->polled_node)) {
- struct rb_node **link, *uninitialized_var(parent);
+ struct rb_node **link, *parent;
link = fuse_find_polled_node(fc, ff->kh, &parent);
BUG_ON(*link);
@@@ -3406,7 -3382,6 +3406,6 @@@ static const struct file_operations fus
.fsync = fuse_fsync,
.lock = fuse_file_lock,
.flock = fuse_file_flock,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = fuse_file_ioctl,
.compat_ioctl = fuse_file_compat_ioctl,
diff --combined fs/gfs2/file.c
index 973cac25e781,3e0f0435c96a..8f172bbf5996
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@@ -781,44 -781,40 +781,44 @@@ static int gfs2_fsync(struct file *file
return ret ? ret : ret1;
}
-static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to)
+static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
size_t count = iov_iter_count(to);
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
if (!count)
return 0; /* skip atime */
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
- ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
- gfs2_glock_dq(&gh);
+ ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL, flags);
+
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
-static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
+static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct gfs2_inode *ip = GFS2_I(inode);
size_t len = iov_iter_count(from);
loff_t offset = iocb->ki_pos;
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
/*
* Deferred lock, even if its a write, since we do no allocation on
@@@ -828,8 -824,8 +828,8 @@@
* unfortunately, have the option of only flushing a range like the
* VFS does.
*/
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
@@@ -837,15 -833,13 +837,15 @@@
if (offset + len > i_size_read(&ip->i_inode))
goto out;
- ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL, flags);
out:
- gfs2_glock_dq(&gh);
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
@@@ -857,7 -851,7 +857,7 @@@ static ssize_t gfs2_file_read_iter(stru
ssize_t ret;
if (iocb->ki_flags & IOCB_DIRECT) {
- ret = gfs2_file_direct_read(iocb, to);
+ ret = gfs2_file_direct_read(iocb, to, &gh);
if (likely(ret != -ENOTBLK))
return ret;
iocb->ki_flags &= ~IOCB_DIRECT;
@@@ -906,12 -900,13 +906,12 @@@ static ssize_t gfs2_file_write_iter(str
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_holder gh;
ssize_t ret;
gfs2_size_hint(file, iocb->ki_pos, iov_iter_count(from));
if (iocb->ki_flags & IOCB_APPEND) {
- struct gfs2_holder gh;
-
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
return ret;
@@@ -935,7 -930,7 +935,7 @@@
struct address_space *mapping = file->f_mapping;
ssize_t buffered, ret2;
- ret = gfs2_file_direct_write(iocb, from);
+ ret = gfs2_file_direct_write(iocb, from, &gh);
if (ret < 0 || !iov_iter_count(from))
goto out_unlock;
@@@ -1376,7 -1371,6 +1376,6 @@@ const struct file_operations gfs2_file_
.fsync = gfs2_fsync,
.lock = gfs2_lock,
.flock = gfs2_flock,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = simple_nosetlease,
.fallocate = gfs2_fallocate,
@@@ -1407,7 -1401,6 +1406,6 @@@ const struct file_operations gfs2_file_
.open = gfs2_open,
.release = gfs2_release,
.fsync = gfs2_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = generic_setlease,
.fallocate = gfs2_fallocate,
diff --combined fs/gfs2/glock.c
index 57134d326cfa,ffc9e4273a23..63a6c3e391e9
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@@ -2106,12 -2106,6 +2106,12 @@@ static const char *gflags2str(char *buf
*p++ = 'o';
if (test_bit(GLF_BLOCKING, gflags))
*p++ = 'b';
+ if (test_bit(GLF_INODE_CREATING, gflags))
+ *p++ = 'c';
+ if (test_bit(GLF_PENDING_DELETE, gflags))
+ *p++ = 'P';
+ if (test_bit(GLF_FREEING, gflags))
+ *p++ = 'x';
*p = 0;
return buf;
}
@@@ -2479,7 -2473,7 +2479,7 @@@ static int gfs2_sbstats_open(struct ino
static const struct file_operations gfs2_glocks_fops = {
.owner = THIS_MODULE,
.open = gfs2_glocks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2487,7 -2481,7 +2487,7 @@@
static const struct file_operations gfs2_glstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_glstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2495,7 -2489,7 +2495,7 @@@
static const struct file_operations gfs2_sbstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_sbstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/hfs/inode.c
index f35a37c65e5f,6181d3818e17..8d78da646f74
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@@ -17,7 -17,6 +17,7 @@@
#include <linux/cred.h>
#include <linux/uio.h>
#include <linux/xattr.h>
+#include <linux/blkdev.h>
#include "hfs_fs.h"
#include "btree.h"
@@@ -683,7 -682,6 +683,6 @@@ static const struct file_operations hfs
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
- .splice_read = generic_file_splice_read,
.fsync = hfs_file_fsync,
.open = hfs_file_open,
.release = hfs_file_release,
diff --combined fs/nfsd/nfsctl.c
index 7ae236113040,c6f2faa759d1..b36911385f5d
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@@ -159,7 -159,7 +159,7 @@@ static int exports_proc_open(struct ino
static const struct proc_ops exports_proc_ops = {
.proc_open = exports_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
@@@ -171,7 -171,7 +171,7 @@@ static int exports_nfsd_open(struct ino
static const struct file_operations exports_nfsd_operations = {
.open = exports_nfsd_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -189,7 -189,7 +189,7 @@@ static int export_features_open(struct
static const struct file_operations export_features_operations = {
.open = export_features_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -208,7 -208,7 +208,7 @@@ static int supported_enctypes_open(stru
static const struct file_operations supported_enctypes_ops = {
.open = supported_enctypes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -216,14 -216,14 +216,14 @@@
static const struct file_operations pool_stats_operations = {
.open = nfsd_pool_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = nfsd_pool_stats_release,
};
static const struct file_operations reply_cache_stats_operations = {
.open = nfsd_reply_cache_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -351,7 -351,7 +351,7 @@@ static ssize_t write_unlock_fs(struct f
static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
{
char *dname, *path;
- int uninitialized_var(maxsize);
+ int maxsize;
char *mesg = buf;
int len;
struct auth_domain *dom;
diff --combined fs/omfs/file.c
index 2c7b70ee1388,0dddc6c644c1..cae3f4dcae54
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@@ -220,7 -220,7 +220,7 @@@ static int omfs_get_block(struct inode
struct buffer_head *bh;
sector_t next, offset;
int ret;
- u64 uninitialized_var(new_block);
+ u64 new_block;
u32 max_extents;
int extent_count;
struct omfs_extent *oe;
@@@ -340,7 -340,6 +340,6 @@@ const struct file_operations omfs_file_
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = generic_file_fsync,
- .splice_read = generic_file_splice_read,
};
static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
diff --combined fs/proc/array.c
index 65ec2029fa80,49456efa31e3..5f6c8a8cb701
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@@ -341,8 -341,6 +341,8 @@@ static inline void task_seccomp(struct
seq_put_decimal_ull(m, "NoNewPrivs:\t", task_no_new_privs(p));
#ifdef CONFIG_SECCOMP
seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode);
+ seq_put_decimal_ull(m, "\nSeccomp_filters:\t",
+ atomic_read(&p->seccomp.filter_count));
#endif
seq_puts(m, "\nSpeculation_Store_Bypass:\t");
switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
@@@ -768,7 -766,7 +768,7 @@@ static int children_seq_open(struct ino
const struct file_operations proc_tid_children_operations = {
.open = children_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/proc/task_mmu.c
index 4f8ae353a8c5,df2f0f05f5ba..3465973308b7
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@@ -351,7 -351,7 +351,7 @@@ static int pid_maps_open(struct inode *
const struct file_operations proc_pid_maps_operations = {
.open = pid_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
@@@ -653,10 -653,6 +653,10 @@@ static void show_smap_vma_flags(struct
[ilog2(VM_MERGEABLE)] = "mg",
[ilog2(VM_UFFD_MISSING)]= "um",
[ilog2(VM_UFFD_WP)] = "uw",
+#ifdef CONFIG_ARM64_MTE
+ [ilog2(VM_MTE)] = "mt",
+ [ilog2(VM_MTE_ALLOWED)] = "",
+#endif
#ifdef CONFIG_ARCH_HAS_PKEYS
/* These come out via ProtectionKey: */
[ilog2(VM_PKEY_BIT0)] = "",
@@@ -937,14 -933,14 +937,14 @@@ static int smaps_rollup_release(struct
const struct file_operations proc_pid_smaps_operations = {
.open = pid_smaps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
const struct file_operations proc_pid_smaps_rollup_operations = {
.open = smaps_rollup_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = smaps_rollup_release,
};
@@@ -1883,7 -1879,7 +1883,7 @@@ static int pid_numa_maps_open(struct in
const struct file_operations proc_pid_numa_maps_operations = {
.open = pid_numa_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
diff --combined fs/ubifs/file.c
index b77d1637bbbc,a3af46b39508..fb41c77cae1e
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@@ -222,7 -222,7 +222,7 @@@ static int write_begin_slow(struct addr
struct ubifs_info *c = inode->i_sb->s_fs_info;
pgoff_t index = pos >> PAGE_SHIFT;
struct ubifs_budget_req req = { .new_page = 1 };
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
struct page *page;
dbg_gen("ino %lu, pos %llu, len %u, i_size %lld",
@@@ -426,7 -426,7 +426,7 @@@ static int ubifs_write_begin(struct fil
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode);
pgoff_t index = pos >> PAGE_SHIFT;
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
int skipped_read = 0;
struct page *page;
@@@ -1668,7 -1668,6 +1668,6 @@@ const struct file_operations ubifs_file
.mmap = ubifs_file_mmap,
.fsync = ubifs_fsync,
.unlocked_ioctl = ubifs_ioctl,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.open = fscrypt_file_open,
#ifdef CONFIG_COMPAT
diff --combined fs/xfs/xfs_file.c
index 781f72b06af0,964bc733e765..36ba167f0e80
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@@ -94,7 -94,6 +94,7 @@@ xfs_file_fsync
{
struct inode *inode = file->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_inode_log_item *iip = ip->i_itemp;
struct xfs_mount *mp = ip->i_mount;
int error = 0;
int log_flushed = 0;
@@@ -138,15 -137,13 +138,15 @@@
xfs_ilock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip)) {
if (!datasync ||
- (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
- lsn = ip->i_itemp->ili_last_lsn;
+ (iip->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
+ lsn = iip->ili_last_lsn;
}
if (lsn) {
error = xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed);
- ip->i_itemp->ili_fsync_fields = 0;
+ spin_lock(&iip->ili_lock);
+ iip->ili_fsync_fields = 0;
+ spin_unlock(&iip->ili_lock);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@@ -172,8 -169,6 +172,8 @@@ xfs_file_dio_aio_read
struct xfs_inode *ip = XFS_I(file_inode(iocb->ki_filp));
size_t count = iov_iter_count(to);
ssize_t ret;
+ unsigned int flags = 0;
+
trace_xfs_file_direct_read(ip, count, iocb->ki_pos);
@@@ -188,11 -183,8 +188,11 @@@
} else {
xfs_ilock(ip, XFS_IOLOCK_SHARED);
}
- ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL, flags);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
return ret;
@@@ -491,7 -483,6 +491,7 @@@ xfs_file_dio_aio_write
int iolock;
size_t count = iov_iter_count(from);
struct xfs_buftarg *target = xfs_inode_buftarg(ip);
+ unsigned int flags = 0;
/* DIO must be aligned to device logical sector size */
if ((iocb->ki_pos | count) & target->bt_logical_sectormask)
@@@ -555,10 -546,9 +555,10 @@@
* If unaligned, this is the only IO in-flight. Wait on it before we
* release the iolock to prevent subsequent overlapping IO.
*/
+ if (is_sync_kiocb(iocb) || unaligned_io)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, from, &xfs_direct_write_iomap_ops,
- &xfs_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io);
+ &xfs_dio_write_ops, flags);
out:
xfs_iunlock(ip, iolock);
@@@ -1045,7 -1035,7 +1045,7 @@@ xfs_file_remap_range
/* Prepare and then clone file data. */
ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out,
&len, remap_flags);
- if (ret < 0 || len == 0)
+ if (ret || len == 0)
return ret;
trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out);
@@@ -1075,7 -1065,7 +1075,7 @@@
if (mp->m_flags & XFS_MOUNT_WSYNC)
xfs_log_force_inode(dest);
out_unlock:
- xfs_reflink_remap_unlock(file_in, file_out);
+ xfs_iunlock2_io_mmap(src, dest);
if (ret)
trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_);
return remapped > 0 ? remapped : ret;
@@@ -1090,7 -1080,7 +1090,7 @@@ xfs_file_open
return -EFBIG;
if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb)))
return -EIO;
- file->f_mode |= FMODE_NOWAIT;
+ file->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return 0;
}
@@@ -1273,23 -1263,10 +1273,23 @@@ xfs_filemap_pfn_mkwrite
return __xfs_filemap_fault(vmf, PE_SIZE_PTE, true);
}
+static void
+xfs_filemap_map_pages(
+ struct vm_fault *vmf,
+ pgoff_t start_pgoff,
+ pgoff_t end_pgoff)
+{
+ struct inode *inode = file_inode(vmf->vma->vm_file);
+
+ xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+ filemap_map_pages(vmf, start_pgoff, end_pgoff);
+ xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+}
+
static const struct vm_operations_struct xfs_file_vm_ops = {
.fault = xfs_filemap_fault,
.huge_fault = xfs_filemap_huge_fault,
- .map_pages = filemap_map_pages,
+ .map_pages = xfs_filemap_map_pages,
.page_mkwrite = xfs_filemap_page_mkwrite,
.pfn_mkwrite = xfs_filemap_pfn_mkwrite,
};
@@@ -1320,7 -1297,6 +1320,6 @@@ const struct file_operations xfs_file_o
.llseek = xfs_file_llseek,
.read_iter = xfs_file_read_iter,
.write_iter = xfs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
.unlocked_ioctl = xfs_file_ioctl,
diff --combined fs/zonefs/super.c
index 798e2e636887,d9f5fbeb5506..0d59e3fff1a7
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@@ -670,7 -670,6 +670,7 @@@ static ssize_t zonefs_file_dio_write(st
bool append = false;
size_t count;
ssize_t ret;
+ int flags = 0;
/*
* For async direct IOs to sequential zone files, refuse IOCB_NOWAIT
@@@ -712,15 -711,11 +712,15 @@@
append = sync;
}
- if (append)
+ if (append) {
ret = zonefs_file_dio_append(iocb, from);
- else
+ } else {
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
- &zonefs_write_dio_ops, sync);
+ &zonefs_write_dio_ops, flags);
+ }
if (zi->i_ztype == ZONEFS_ZTYPE_SEQ &&
(ret > 0 || ret == -EIOCBQUEUED)) {
if (ret > 0)
@@@ -819,7 -814,6 +819,7 @@@ static ssize_t zonefs_file_read_iter(st
struct super_block *sb = inode->i_sb;
loff_t isize;
ssize_t ret;
+ int flags = 0;
/* Offline zones cannot be read */
if (unlikely(IS_IMMUTABLE(inode) && !(inode->i_mode & 0777)))
@@@ -854,10 -848,8 +854,10 @@@
goto inode_unlock;
}
file_accessed(iocb->ki_filp);
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, to, &zonefs_iomap_ops,
- &zonefs_read_dio_ops, is_sync_kiocb(iocb));
+ &zonefs_read_dio_ops, flags);
} else {
ret = generic_file_read_iter(iocb, to);
if (ret == -EIO)
@@@ -877,7 -869,6 +877,6 @@@ static const struct file_operations zon
.llseek = zonefs_file_llseek,
.read_iter = zonefs_file_read_iter,
.write_iter = zonefs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
};
diff --combined include/linux/bpf-cgroup.h
index 2c6f26670acc,f81d3b3752f9..a4079965c98e
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@@ -132,7 -132,7 +132,7 @@@ int __cgroup_bpf_check_dev_permission(s
int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
struct ctl_table *table, int write,
- void **buf, size_t *pcount, loff_t *ppos,
+ char **buf, size_t *pcount, loff_t *ppos,
enum bpf_attach_type type);
int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
@@@ -210,9 -210,6 +210,9 @@@ int bpf_percpu_cgroup_storage_update(st
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_CREATE)
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \
+ BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_RELEASE)
+
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET4_POST_BIND)
@@@ -404,7 -401,6 +404,7 @@@ static inline int bpf_percpu_cgroup_sto
#define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET6_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
diff --combined include/linux/fs.h
index a771d4f2e41d,7680752cff24..166ae3eafb58
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@@ -39,7 -39,6 +39,7 @@@
#include <linux/fs_types.h>
#include <linux/build_bug.h>
#include <linux/stddef.h>
+#include <linux/watch_queue.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@@ -69,7 -68,6 +69,7 @@@ struct fsverity_info
struct fsverity_operations;
struct fs_context;
struct fs_parameter_spec;
+struct fsinfo_context;
extern void __init inode_init(void);
extern void __init inode_init_early(void);
@@@ -177,9 -175,6 +177,9 @@@ typedef int (dio_iodone_t)(struct kioc
/* File does not contribute to nr_files count */
#define FMODE_NOACCOUNT ((__force fmode_t)0x20000000)
+/* File supports async buffered reads */
+#define FMODE_BUF_RASYNC ((__force fmode_t)0x40000000)
+
/*
* Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
* that indicates that they should check the contents of the iovec are
@@@ -320,8 -315,6 +320,8 @@@ enum rw_hint
#define IOCB_SYNC (1 << 5)
#define IOCB_WRITE (1 << 6)
#define IOCB_NOWAIT (1 << 7)
+/* iocb->ki_waitq is valid */
+#define IOCB_WAITQ (1 << 8)
#define IOCB_NOIO (1 << 9)
struct kiocb {
@@@ -336,10 -329,7 +336,10 @@@
int ki_flags;
u16 ki_hint;
u16 ki_ioprio; /* See linux/ioprio.h */
- unsigned int ki_cookie; /* for ->iopoll */
+ union {
+ unsigned int ki_cookie; /* for ->iopoll */
+ struct wait_page_queue *ki_waitq; /* for async buffered IO */
+ };
randomized_struct_fields_end
};
@@@ -481,6 -471,45 +481,6 @@@ struct address_space
* must be enforced here for CRIS, to let the least significant bit
* of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON.
*/
-struct request_queue;
-
-struct block_device {
- dev_t bd_dev; /* not a kdev_t - it's a search key */
- int bd_openers;
- struct inode * bd_inode; /* will die */
- struct super_block * bd_super;
- struct mutex bd_mutex; /* open/close mutex */
- void * bd_claiming;
- void * bd_holder;
- int bd_holders;
- bool bd_write_holder;
-#ifdef CONFIG_SYSFS
- struct list_head bd_holder_disks;
-#endif
- struct block_device * bd_contains;
- unsigned bd_block_size;
- u8 bd_partno;
- struct hd_struct * bd_part;
- /* number of times partitions within this device have been opened. */
- unsigned bd_part_count;
- int bd_invalidated;
- struct gendisk * bd_disk;
- struct request_queue * bd_queue;
- struct backing_dev_info *bd_bdi;
- struct list_head bd_list;
- /*
- * Private data. You must have bd_claim'ed the block_device
- * to use this. NOTE: bd_claim allows an owner to claim
- * the same device multiple times, the owner must take special
- * care to not mess up bd_private for that case.
- */
- unsigned long bd_private;
-
- /* The counter of freeze processes */
- int bd_fsfreeze_count;
- /* Mutex for freeze */
- struct mutex bd_fsfreeze_mutex;
-} __randomize_layout;
/* XArray tags, for tagging dirty and writeback pages in the pagecache. */
#define PAGECACHE_TAG_DIRTY XA_MARK_0
@@@ -879,6 -908,8 +879,6 @@@ static inline unsigned imajor(const str
return MAJOR(inode->i_rdev);
}
-extern struct block_device *I_BDEV(struct inode *inode);
-
struct fown_struct {
rwlock_t lock; /* protects pid, uid, euid fields */
struct pid *pid; /* pid or -pgrp where SIGIO should be sent */
@@@ -1350,7 -1381,6 +1350,7 @@@ extern int send_sigurg(struct fown_stru
#define SB_NODIRATIME 2048 /* Do not update directory access times */
#define SB_SILENT 32768
#define SB_POSIXACL (1<<16) /* VFS does not apply the umask */
+#define SB_INLINECRYPT (1<<17) /* Use blk-crypto for encrypted files */
#define SB_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define SB_I_VERSION (1<<23) /* Update inode I_version field */
#define SB_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
@@@ -1534,15 -1564,6 +1534,15 @@@ struct super_block
spinlock_t s_inode_wblist_lock;
struct list_head s_inodes_wb; /* writeback inodes */
+
+ /* Superblock event notifications */
+ u64 s_unique_id;
+
+#ifdef CONFIG_SB_NOTIFICATIONS
+ struct watch_list *s_watchers;
+#endif
+ atomic_t s_change_counter; /* Count of config change notifications */
+ atomic_t s_notify_counter; /* Count of other notifications */
} __randomize_layout;
/* Helper functions so that in most cases filesystems will
@@@ -1754,6 -1775,14 +1754,6 @@@ struct dir_context
loff_t pos;
};
-struct block_device_operations;
-
-/* These macros are for out of kernel modules to test that
- * the kernel supports the unlocked_ioctl and compat_ioctl
- * fields in struct file_operations. */
-#define HAVE_COMPAT_IOCTL 1
-#define HAVE_UNLOCKED_IOCTL 1
-
/*
* These flags let !MMU mmap() govern direct device mapping vs immediate
* copying more easily for MAP_PRIVATE, especially for ROM filesystems.
@@@ -1891,8 -1920,6 +1891,6 @@@ ssize_t rw_copy_check_uvector(int type
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
- extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
- unsigned long, loff_t *, rwf_t);
extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
loff_t, size_t, unsigned int);
extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
@@@ -1931,9 -1958,6 +1929,9 @@@ struct super_operations
int (*thaw_super) (struct super_block *);
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
+#ifdef CONFIG_FSINFO
+ int (*fsinfo)(struct path *, struct fsinfo_context *);
+#endif
int (*remount_fs) (struct super_block *, int *, char *);
void (*umount_begin) (struct super_block *);
@@@ -2132,10 -2156,6 +2130,10 @@@ static inline void kiocb_clone(struct k
*
* I_DONTCACHE Evict inode as soon as it is not used anymore.
*
+ * I_SYNC_QUEUED Inode is queued in b_io or b_more_io writeback lists.
+ * Used to detect that mark_inode_dirty() should not move
+ * inode between dirty lists.
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@@ -2153,11 -2173,12 +2151,11 @@@
#define I_DIO_WAKEUP (1 << __I_DIO_WAKEUP)
#define I_LINKABLE (1 << 10)
#define I_DIRTY_TIME (1 << 11)
-#define __I_DIRTY_TIME_EXPIRED 12
-#define I_DIRTY_TIME_EXPIRED (1 << __I_DIRTY_TIME_EXPIRED)
#define I_WB_SWITCH (1 << 13)
#define I_OVL_INUSE (1 << 14)
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
+#define I_SYNC_QUEUED (1 << 17)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
@@@ -2241,9 -2262,18 +2239,9 @@@ struct file_system_type
#define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME)
-#ifdef CONFIG_BLOCK
extern struct dentry *mount_bdev(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
int (*fill_super)(struct super_block *, void *, int));
-#else
-static inline struct dentry *mount_bdev(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data,
- int (*fill_super)(struct super_block *, void *, int))
-{
- return ERR_PTR(-ENODEV);
-}
-#endif
extern struct dentry *mount_single(struct file_system_type *fs_type,
int flags, void *data,
int (*fill_super)(struct super_block *, void *, int));
@@@ -2252,7 -2282,14 +2250,7 @@@ extern struct dentry *mount_nodev(struc
int (*fill_super)(struct super_block *, void *, int));
extern struct dentry *mount_subtree(struct vfsmount *mnt, const char *path);
void generic_shutdown_super(struct super_block *sb);
-#ifdef CONFIG_BLOCK
void kill_block_super(struct super_block *sb);
-#else
-static inline void kill_block_super(struct super_block *sb)
-{
- BUG();
-}
-#endif
void kill_anon_super(struct super_block *sb);
void kill_litter_super(struct super_block *sb);
void deactivate_super(struct super_block *sb);
@@@ -2542,16 -2579,93 +2540,16 @@@ extern struct kmem_cache *names_cachep
#define __getname() kmem_cache_alloc(names_cachep, GFP_KERNEL)
#define __putname(name) kmem_cache_free(names_cachep, (void *)(name))
-#ifdef CONFIG_BLOCK
-extern int register_blkdev(unsigned int, const char *);
-extern void unregister_blkdev(unsigned int, const char *);
-extern struct block_device *bdget(dev_t);
-extern struct block_device *bdgrab(struct block_device *bdev);
-extern void bd_set_size(struct block_device *, loff_t size);
-extern void bd_forget(struct inode *inode);
-extern void bdput(struct block_device *);
-extern void invalidate_bdev(struct block_device *);
-extern void iterate_bdevs(void (*)(struct block_device *, void *), void *);
-extern int sync_blockdev(struct block_device *bdev);
-extern struct super_block *freeze_bdev(struct block_device *);
-extern void emergency_thaw_all(void);
-extern void emergency_thaw_bdev(struct super_block *sb);
-extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
-extern int fsync_bdev(struct block_device *);
-
extern struct super_block *blockdev_superblock;
-
static inline bool sb_is_blkdev_sb(struct super_block *sb)
{
- return sb == blockdev_superblock;
-}
-#else
-static inline void bd_forget(struct inode *inode) {}
-static inline int sync_blockdev(struct block_device *bdev) { return 0; }
-static inline void invalidate_bdev(struct block_device *bdev) {}
-
-static inline struct super_block *freeze_bdev(struct block_device *sb)
-{
- return NULL;
-}
-
-static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
- return 0;
-}
-
-static inline int emergency_thaw_bdev(struct super_block *sb)
-{
- return 0;
-}
-
-static inline void iterate_bdevs(void (*f)(struct block_device *, void *), void *arg)
-{
+ return IS_ENABLED(CONFIG_BLOCK) && sb == blockdev_superblock;
}
-static inline bool sb_is_blkdev_sb(struct super_block *sb)
-{
- return false;
-}
-#endif
+void emergency_thaw_all(void);
extern int sync_filesystem(struct super_block *);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
-#ifdef CONFIG_BLOCK
-extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
-extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long);
-extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder);
-extern struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
- void *holder);
-extern struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode,
- void *holder);
-extern struct block_device *bd_start_claiming(struct block_device *bdev,
- void *holder);
-extern void bd_finish_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void bd_abort_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void blkdev_put(struct block_device *bdev, fmode_t mode);
-
-#ifdef CONFIG_SYSFS
-extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
-extern void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk);
-#else
-static inline int bd_link_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
- return 0;
-}
-static inline void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
-}
-#endif
-#endif
/* fs/char_dev.c */
#define CHRDEV_MAJOR_MAX 512
@@@ -2582,12 -2696,31 +2580,12 @@@ static inline void unregister_chrdev(un
__unregister_chrdev(major, 0, 256, name);
}
-/* fs/block_dev.c */
-#define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */
-#define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */
-
-#ifdef CONFIG_BLOCK
-#define BLKDEV_MAJOR_MAX 512
-extern const char *bdevname(struct block_device *bdev, char *buffer);
-extern struct block_device *lookup_bdev(const char *);
-extern void blkdev_show(struct seq_file *,off_t);
-
-#else
-#define BLKDEV_MAJOR_MAX 0
-#endif
-
extern void init_special_inode(struct inode *, umode_t, dev_t);
/* Invalid inode operations -- fs/bad_inode.c */
extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
-#ifdef CONFIG_BLOCK
-extern int revalidate_disk(struct gendisk *);
-extern int check_disk_change(struct block_device *);
-extern int __invalidate_device(struct block_device *, bool);
-#endif
unsigned long invalidate_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t end);
@@@ -2692,7 -2825,7 +2690,7 @@@ static inline errseq_t filemap_sample_w
/**
* file_sample_sb_err - sample the current errseq_t to test for later errors
- * @mapping: mapping to be sampled
+ * @file: file pointer to be sampled
*
* Grab the most current superblock-level errseq_t value for the given
* struct file.
@@@ -2988,6 -3121,10 +2986,6 @@@ static inline void remove_inode_hash(st
extern void inode_sb_list_add(struct inode *inode);
-#ifdef CONFIG_BLOCK
-extern int bdev_read_only(struct block_device *);
-#endif
-extern int set_blocksize(struct block_device *, int);
extern int sb_set_blocksize(struct super_block *, int);
extern int sb_min_blocksize(struct super_block *, int);
@@@ -3525,56 -3662,4 +3523,56 @@@ static inline int inode_drain_writes(st
return filemap_write_and_wait(inode->i_mapping);
}
+extern void __notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info);
+extern void __notify_sb_error(struct super_block *s, int error);
+extern void __notify_sb_EQDUOT(struct super_block *s);
+
+/**
+ * notify_sb: Post simple superblock notification.
+ * @s: The superblock the notification is about.
+ * @subtype: The type of notification.
+ * @info: WATCH_INFO_FLAG_* flags to be set in the record.
+ */
+static inline void notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_change_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb(s, subtype, info);
+#endif
+}
+
+/**
+ * notify_sb_error: Post superblock error notification.
+ * @s: The superblock the notification is about.
+ * @error: The error number to be recorded.
+ */
+static inline int notify_sb_error(struct super_block *s, int error)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_error(s, error);
+#endif
+ return error;
+}
+
+/**
+ * notify_sb_EDQUOT: Post superblock quota overrun notification.
+ * @s: The superblock the notification is about.
+ */
+static inline int notify_sb_EQDUOT(struct super_block *s)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_EQDUOT(s);
+#endif
+ return -EDQUOT;
+}
+
#endif /* _LINUX_FS_H */
diff --combined kernel/kallsyms.c
index 95cb74f73292,1c46a1f2e9f9..ad0646efe554
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@@ -24,7 -24,6 +24,7 @@@
#include <linux/slab.h>
#include <linux/filter.h>
#include <linux/ftrace.h>
+#include <linux/kprobes.h>
#include <linux/compiler.h>
/*
@@@ -438,7 -437,6 +438,7 @@@ struct kallsym_iter
loff_t pos_arch_end;
loff_t pos_mod_end;
loff_t pos_ftrace_mod_end;
+ loff_t pos_bpf_end;
unsigned long value;
unsigned int nameoff; /* If iterating in core kernel symbols. */
char type;
@@@ -482,11 -480,6 +482,11 @@@ static int get_ksymbol_mod(struct kalls
return 1;
}
+/*
+ * ftrace_mod_get_kallsym() may also get symbols for pages allocated for ftrace
+ * purposes. In that case "__builtin__ftrace" is used as a module name, even
+ * though "__builtin__ftrace" is not a module.
+ */
static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
{
int ret = ftrace_mod_get_kallsym(iter->pos - iter->pos_mod_end,
@@@ -503,33 -496,11 +503,33 @@@
static int get_ksymbol_bpf(struct kallsym_iter *iter)
{
+ int ret;
+
strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
iter->exported = 0;
- return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
- &iter->value, &iter->type,
- iter->name) < 0 ? 0 : 1;
+ ret = bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
+ &iter->value, &iter->type,
+ iter->name);
+ if (ret < 0) {
+ iter->pos_bpf_end = iter->pos;
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * This uses "__builtin__kprobes" as a module name for symbols for pages
+ * allocated for kprobes' purposes, even though "__builtin__kprobes" is not a
+ * module.
+ */
+static int get_ksymbol_kprobe(struct kallsym_iter *iter)
+{
+ strlcpy(iter->module_name, "__builtin__kprobes", MODULE_NAME_LEN);
+ iter->exported = 0;
+ return kprobe_get_kallsym(iter->pos - iter->pos_bpf_end,
+ &iter->value, &iter->type,
+ iter->name) < 0 ? 0 : 1;
}
/* Returns space to next name. */
@@@ -556,7 -527,6 +556,7 @@@ static void reset_iter(struct kallsym_i
iter->pos_arch_end = 0;
iter->pos_mod_end = 0;
iter->pos_ftrace_mod_end = 0;
+ iter->pos_bpf_end = 0;
}
}
@@@ -581,11 -551,7 +581,11 @@@ static int update_iter_mod(struct kalls
get_ksymbol_ftrace_mod(iter))
return 1;
- return get_ksymbol_bpf(iter);
+ if ((!iter->pos_bpf_end || iter->pos_bpf_end > pos) &&
+ get_ksymbol_bpf(iter))
+ return 1;
+
+ return get_ksymbol_kprobe(iter);
}
/* Returns false if pos at or past end of file. */
@@@ -738,7 -704,7 +738,7 @@@ const char *kdb_walk_kallsyms(loff_t *p
static const struct proc_ops kallsyms_proc_ops = {
.proc_open = kallsyms_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release_private,
};
diff --combined kernel/sched/psi.c
index 967732c0766c,6795170140a0..4c084d66746a
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@@ -190,6 -190,7 +190,6 @@@ static void group_init(struct psi_grou
INIT_DELAYED_WORK(&group->avgs_work, psi_avgs_work);
mutex_init(&group->avgs_lock);
/* Init trigger-related members */
- atomic_set(&group->poll_scheduled, 0);
mutex_init(&group->trigger_lock);
INIT_LIST_HEAD(&group->triggers);
memset(group->nr_triggers, 0, sizeof(group->nr_triggers));
@@@ -198,7 -199,7 +198,7 @@@
memset(group->polling_total, 0, sizeof(group->polling_total));
group->polling_next_update = ULLONG_MAX;
group->polling_until = 0;
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
void __init psi_init(void)
@@@ -546,38 -547,47 +546,38 @@@ static u64 update_triggers(struct psi_g
return now + group->poll_min_period;
}
-/*
- * Schedule polling if it's not already scheduled. It's safe to call even from
- * hotpath because even though kthread_queue_delayed_work takes worker->lock
- * spinlock that spinlock is never contended due to poll_scheduled atomic
- * preventing such competition.
- */
+/* Schedule polling if it's not already scheduled. */
static void psi_schedule_poll_work(struct psi_group *group, unsigned long delay)
{
- struct kthread_worker *kworker;
+ struct task_struct *task;
- /* Do not reschedule if already scheduled */
- if (atomic_cmpxchg(&group->poll_scheduled, 0, 1) != 0)
+ /*
+ * Do not reschedule if already scheduled.
+ * Possible race with a timer scheduled after this check but before
+ * mod_timer below can be tolerated because group->polling_next_update
+ * will keep updates on schedule.
+ */
+ if (timer_pending(&group->poll_timer))
return;
rcu_read_lock();
- kworker = rcu_dereference(group->poll_kworker);
+ task = rcu_dereference(group->poll_task);
/*
* kworker might be NULL in case psi_trigger_destroy races with
* psi_task_change (hotpath) which can't use locks
*/
- if (likely(kworker))
- kthread_queue_delayed_work(kworker, &group->poll_work, delay);
- else
- atomic_set(&group->poll_scheduled, 0);
+ if (likely(task))
+ mod_timer(&group->poll_timer, jiffies + delay);
rcu_read_unlock();
}
-static void psi_poll_work(struct kthread_work *work)
+static void psi_poll_work(struct psi_group *group)
{
- struct kthread_delayed_work *dwork;
- struct psi_group *group;
u32 changed_states;
u64 now;
- dwork = container_of(work, struct kthread_delayed_work, work);
- group = container_of(dwork, struct psi_group, poll_work);
-
- atomic_set(&group->poll_scheduled, 0);
-
mutex_lock(&group->trigger_lock);
now = sched_clock();
@@@ -613,32 -623,6 +613,32 @@@ out
mutex_unlock(&group->trigger_lock);
}
+static int psi_poll_worker(void *data)
+{
+ struct psi_group *group = (struct psi_group *)data;
+
+ sched_set_fifo_low(current);
+
+ while (true) {
+ wait_event_interruptible(group->poll_wait,
+ atomic_cmpxchg(&group->poll_wakeup, 1, 0) ||
+ kthread_should_stop());
+ if (kthread_should_stop())
+ break;
+
+ psi_poll_work(group);
+ }
+ return 0;
+}
+
+static void poll_timer_fn(struct timer_list *t)
+{
+ struct psi_group *group = from_timer(group, t, poll_timer);
+
+ atomic_set(&group->poll_wakeup, 1);
+ wake_up_interruptible(&group->poll_wait);
+}
+
static void record_times(struct psi_group_cpu *groupc, int cpu,
bool memstall_tick)
{
@@@ -1115,20 -1099,22 +1115,20 @@@ struct psi_trigger *psi_trigger_create(
mutex_lock(&group->trigger_lock);
- if (!rcu_access_pointer(group->poll_kworker)) {
- struct sched_param param = {
- .sched_priority = 1,
- };
- struct kthread_worker *kworker;
+ if (!rcu_access_pointer(group->poll_task)) {
+ struct task_struct *task;
- kworker = kthread_create_worker(0, "psimon");
- if (IS_ERR(kworker)) {
+ task = kthread_create(psi_poll_worker, group, "psimon");
+ if (IS_ERR(task)) {
kfree(t);
mutex_unlock(&group->trigger_lock);
- return ERR_CAST(kworker);
+ return ERR_CAST(task);
}
- sched_setscheduler_nocheck(kworker->task, SCHED_FIFO, ¶m);
- kthread_init_delayed_work(&group->poll_work,
- psi_poll_work);
- rcu_assign_pointer(group->poll_kworker, kworker);
+ atomic_set(&group->poll_wakeup, 0);
+ init_waitqueue_head(&group->poll_wait);
+ wake_up_process(task);
+ timer_setup(&group->poll_timer, poll_timer_fn, 0);
+ rcu_assign_pointer(group->poll_task, task);
}
list_add(&t->node, &group->triggers);
@@@ -1146,7 -1132,7 +1146,7 @@@ static void psi_trigger_destroy(struct
{
struct psi_trigger *t = container_of(ref, struct psi_trigger, refcount);
struct psi_group *group = t->group;
- struct kthread_worker *kworker_to_destroy = NULL;
+ struct task_struct *task_to_destroy = NULL;
if (static_branch_likely(&psi_disabled))
return;
@@@ -1172,13 -1158,13 +1172,13 @@@
period = min(period, div_u64(tmp->win.size,
UPDATES_PER_WINDOW));
group->poll_min_period = period;
- /* Destroy poll_kworker when the last trigger is destroyed */
+ /* Destroy poll_task when the last trigger is destroyed */
if (group->poll_states == 0) {
group->polling_until = 0;
- kworker_to_destroy = rcu_dereference_protected(
- group->poll_kworker,
+ task_to_destroy = rcu_dereference_protected(
+ group->poll_task,
lockdep_is_held(&group->trigger_lock));
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
}
@@@ -1186,23 -1172,25 +1186,23 @@@
/*
* Wait for both *trigger_ptr from psi_trigger_replace and
- * poll_kworker RCUs to complete their read-side critical sections
- * before destroying the trigger and optionally the poll_kworker
+ * poll_task RCUs to complete their read-side critical sections
+ * before destroying the trigger and optionally the poll_task
*/
synchronize_rcu();
/*
* Destroy the kworker after releasing trigger_lock to prevent a
* deadlock while waiting for psi_poll_work to acquire trigger_lock
*/
- if (kworker_to_destroy) {
+ if (task_to_destroy) {
/*
* After the RCU grace period has expired, the worker
- * can no longer be found through group->poll_kworker.
+ * can no longer be found through group->poll_task.
* But it might have been already scheduled before
* that - deschedule it cleanly before destroying it.
*/
- kthread_cancel_delayed_work_sync(&group->poll_work);
- atomic_set(&group->poll_scheduled, 0);
-
- kthread_destroy_worker(kworker_to_destroy);
+ del_timer_sync(&group->poll_timer);
+ kthread_stop(task_to_destroy);
}
kfree(t);
}
@@@ -1317,7 -1305,7 +1317,7 @@@ static int psi_fop_release(struct inod
static const struct proc_ops psi_io_proc_ops = {
.proc_open = psi_io_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_io_write,
.proc_poll = psi_fop_poll,
@@@ -1326,7 -1314,7 +1326,7 @@@
static const struct proc_ops psi_memory_proc_ops = {
.proc_open = psi_memory_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_memory_write,
.proc_poll = psi_fop_poll,
@@@ -1335,7 -1323,7 +1335,7 @@@
static const struct proc_ops psi_cpu_proc_ops = {
.proc_open = psi_cpu_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_cpu_write,
.proc_poll = psi_fop_poll,
diff --combined kernel/trace/ftrace.c
index 62e9b93d5fee,6a645f2ebf47..a3093a84bae3
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@@ -2388,14 -2388,6 +2388,14 @@@ struct ftrace_ops direct_ops =
.flags = FTRACE_OPS_FL_IPMODIFY | FTRACE_OPS_FL_RECURSION_SAFE
| FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS
| FTRACE_OPS_FL_PERMANENT,
+ /*
+ * By declaring the main trampoline as this trampoline
+ * it will never have one allocated for it. Allocated
+ * trampolines should not call direct functions.
+ * The direct_ops should only be called by the builtin
+ * ftrace_regs_caller trampoline.
+ */
+ .trampoline = FTRACE_REGS_ADDR,
};
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
@@@ -2772,50 -2764,6 +2772,50 @@@ void __weak arch_ftrace_trampoline_free
{
}
+/* List of trace_ops that have allocated trampolines */
+static LIST_HEAD(ftrace_ops_trampoline_list);
+
+static void ftrace_add_trampoline_to_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_add_rcu(&ops->list, &ftrace_ops_trampoline_list);
+}
+
+static void ftrace_remove_trampoline_from_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_del_rcu(&ops->list);
+}
+
+/*
+ * "__builtin__ftrace" is used as a module name in /proc/kallsyms for symbols
+ * for pages allocated for ftrace purposes, even though "__builtin__ftrace" is
+ * not a module.
+ */
+#define FTRACE_TRAMPOLINE_MOD "__builtin__ftrace"
+#define FTRACE_TRAMPOLINE_SYM "ftrace_trampoline"
+
+static void ftrace_trampoline_free(struct ftrace_ops *ops)
+{
+ if (ops && (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP) &&
+ ops->trampoline) {
+ /*
+ * Record the text poke event before the ksymbol unregister
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline,
+ (void *)ops->trampoline,
+ ops->trampoline_size, NULL, 0);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size,
+ true, FTRACE_TRAMPOLINE_SYM);
+ /* Remove from kallsyms after the perf events */
+ ftrace_remove_trampoline_from_kallsyms(ops);
+ }
+
+ arch_ftrace_trampoline_free(ops);
+}
+
static void ftrace_startup_enable(int command)
{
if (saved_ftrace_func != ftrace_trace_function) {
@@@ -2986,7 -2934,7 +2986,7 @@@ int ftrace_shutdown(struct ftrace_ops *
synchronize_rcu_tasks();
free_ops:
- arch_ftrace_trampoline_free(ops);
+ ftrace_trampoline_free(ops);
}
return 0;
@@@ -5613,21 -5561,21 +5613,21 @@@ int ftrace_regex_release(struct inode *
static const struct file_operations ftrace_avail_fops = {
.open = ftrace_avail_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_enabled_fops = {
.open = ftrace_enabled_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_filter_fops = {
.open = ftrace_filter_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_filter_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -5635,7 -5583,7 +5635,7 @@@
static const struct file_operations ftrace_notrace_fops = {
.open = ftrace_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_notrace_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -6033,7 -5981,7 +6033,7 @@@ ftrace_graph_write(struct file *file, c
static const struct file_operations ftrace_graph_fops = {
.open = ftrace_graph_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6041,7 -5989,7 +6041,7 @@@
static const struct file_operations ftrace_graph_notrace_fops = {
.open = ftrace_graph_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6230,27 -6178,6 +6230,27 @@@ struct ftrace_mod_map
unsigned int num_funcs;
};
+static int ftrace_get_trampoline_kallsym(unsigned int symnum,
+ unsigned long *value, char *type,
+ char *name, char *module_name,
+ int *exported)
+{
+ struct ftrace_ops *op;
+
+ list_for_each_entry_rcu(op, &ftrace_ops_trampoline_list, list) {
+ if (!op->trampoline || symnum--)
+ continue;
+ *value = op->trampoline;
+ *type = 't';
+ strlcpy(name, FTRACE_TRAMPOLINE_SYM, KSYM_NAME_LEN);
+ strlcpy(module_name, FTRACE_TRAMPOLINE_MOD, MODULE_NAME_LEN);
+ *exported = 0;
+ return 0;
+ }
+
+ return -ERANGE;
+}
+
#ifdef CONFIG_MODULES
#define next_to_ftrace_page(p) container_of(p, struct ftrace_page, next)
@@@ -6587,7 -6514,6 +6587,7 @@@ int ftrace_mod_get_kallsym(unsigned in
{
struct ftrace_mod_map *mod_map;
struct ftrace_mod_func *mod_func;
+ int ret;
preempt_disable();
list_for_each_entry_rcu(mod_map, &ftrace_mod_maps, list) {
@@@ -6614,10 -6540,8 +6614,10 @@@
WARN_ON(1);
break;
}
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
preempt_enable();
- return -ERANGE;
+ return ret;
}
#else
@@@ -6629,18 -6553,6 +6629,18 @@@ allocate_ftrace_mod_map(struct module *
{
return NULL;
}
+int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name, char *module_name,
+ int *exported)
+{
+ int ret;
+
+ preempt_disable();
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
+ preempt_enable();
+ return ret;
+}
#endif /* CONFIG_MODULES */
struct ftrace_init_func {
@@@ -6821,24 -6733,7 +6821,24 @@@ void __weak arch_ftrace_update_trampoli
static void ftrace_update_trampoline(struct ftrace_ops *ops)
{
+ unsigned long trampoline = ops->trampoline;
+
arch_ftrace_update_trampoline(ops);
+ if (ops->trampoline && ops->trampoline != trampoline &&
+ (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP)) {
+ /* Add to kallsyms before the perf events */
+ ftrace_add_trampoline_to_kallsyms(ops);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size, false,
+ FTRACE_TRAMPOLINE_SYM);
+ /*
+ * Record the perf text poke event after the ksymbol register
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline, NULL, 0,
+ (void *)ops->trampoline,
+ ops->trampoline_size);
+ }
}
void ftrace_init_trace_array(struct trace_array *tr)
@@@ -7411,7 -7306,7 +7411,7 @@@ ftrace_pid_release(struct inode *inode
static const struct file_operations ftrace_pid_fops = {
.open = ftrace_pid_open,
.write = ftrace_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
@@@ -7419,7 -7314,7 +7419,7 @@@
static const struct file_operations ftrace_no_pid_fops = {
.open = ftrace_no_pid_open,
.write = ftrace_no_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
diff --combined kernel/trace/trace.c
index 4aab712f9567,36dbb58680fc..5aa5c01e2fed
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@@ -2003,6 -2003,7 +2003,6 @@@ static void tracing_reset_cpu(struct ar
void tracing_reset_online_cpus(struct array_buffer *buf)
{
struct trace_buffer *buffer = buf->buffer;
- int cpu;
if (!buffer)
return;
@@@ -2014,7 -2015,8 +2014,7 @@@
buf->time_start = buffer_ftrace_now(buf, buf->cpu);
- for_each_online_cpu(cpu)
- ring_buffer_reset_cpu(buffer, cpu);
+ ring_buffer_reset_online_cpus(buffer);
ring_buffer_record_enable(buffer);
}
@@@ -3344,16 -3346,12 +3344,16 @@@ int trace_array_printk(struct trace_arr
int ret;
va_list ap;
- if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
- return 0;
-
if (!tr)
return -ENOENT;
+ /* This is only allowed for created instances */
+ if (tr == &global_trace)
+ return 0;
+
+ if (!(tr->trace_flags & TRACE_ITER_PRINTK))
+ return 0;
+
va_start(ap, fmt);
ret = trace_array_vprintk(tr, ip, fmt, ap);
va_end(ap);
@@@ -4613,7 -4611,7 +4613,7 @@@ loff_t tracing_lseek(struct file *file
static const struct file_operations tracing_fops = {
.open = tracing_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_write_stub,
.llseek = tracing_lseek,
.release = tracing_release,
@@@ -4621,7 -4619,7 +4621,7 @@@
static const struct file_operations show_traces_fops = {
.open = show_traces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = show_traces_release,
};
@@@ -4959,7 -4957,7 +4959,7 @@@ static int tracing_trace_options_open(s
static const struct file_operations tracing_iter_fops = {
.open = tracing_trace_options_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_trace_options_write,
@@@ -5299,7 -5297,7 +5299,7 @@@ static int tracing_saved_tgids_open(str
static const struct file_operations tracing_saved_tgids_fops = {
.open = tracing_saved_tgids_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5378,7 -5376,7 +5378,7 @@@ static int tracing_saved_cmdlines_open(
static const struct file_operations tracing_saved_cmdlines_fops = {
.open = tracing_saved_cmdlines_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5544,7 -5542,7 +5544,7 @@@ static int tracing_eval_map_open(struc
static const struct file_operations tracing_eval_map_fops = {
.open = tracing_eval_map_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5889,7 -5887,7 +5889,7 @@@ int tracing_set_tracer(struct trace_arr
}
/* If trace pipe files are being read, we can't change the tracer */
- if (tr->current_trace->ref) {
+ if (tr->trace_ref) {
ret = -EBUSY;
goto out;
}
@@@ -6105,7 -6103,7 +6105,7 @@@ static int tracing_open_pipe(struct ino
nonseekable_open(inode, filp);
- tr->current_trace->ref++;
+ tr->trace_ref++;
out:
mutex_unlock(&trace_types_lock);
return ret;
@@@ -6124,7 -6122,7 +6124,7 @@@ static int tracing_release_pipe(struct
mutex_lock(&trace_types_lock);
- tr->current_trace->ref--;
+ tr->trace_ref--;
if (iter->trace->pipe_close)
iter->trace->pipe_close(iter);
@@@ -7121,7 -7119,7 +7121,7 @@@ static const struct file_operations tra
static const struct file_operations trace_clock_fops = {
.open = tracing_clock_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_clock_write,
@@@ -7129,7 -7127,7 +7129,7 @@@
static const struct file_operations trace_time_stamp_mode_fops = {
.open = tracing_time_stamp_mode_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
};
@@@ -7137,7 -7135,7 +7137,7 @@@
#ifdef CONFIG_TRACER_SNAPSHOT
static const struct file_operations snapshot_fops = {
.open = tracing_snapshot_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_snapshot_write,
.llseek = tracing_lseek,
.release = tracing_snapshot_release,
@@@ -7393,7 -7391,7 +7393,7 @@@ static int tracing_err_log_release(stru
static const struct file_operations tracing_err_log_fops = {
.open = tracing_err_log_open,
.write = tracing_err_log_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_err_log_release,
};
@@@ -7426,7 -7424,7 +7426,7 @@@ static int tracing_buffers_open(struct
filp->private_data = info;
- tr->current_trace->ref++;
+ tr->trace_ref++;
mutex_unlock(&trace_types_lock);
@@@ -7527,7 -7525,7 +7527,7 @@@ static int tracing_buffers_release(stru
mutex_lock(&trace_types_lock);
- iter->tr->current_trace->ref--;
+ iter->tr->trace_ref--;
__trace_array_put(iter->tr);
@@@ -8735,7 -8733,7 +8735,7 @@@ static int __remove_instance(struct tra
int i;
/* Reference counter for a newly created trace array = 1. */
- if (tr->ref > 1 || (tr->current_trace && tr->current_trace->ref))
+ if (tr->ref > 1 || (tr->current_trace && tr->trace_ref))
return -EBUSY;
list_del(&tr->list);
diff --combined mm/shmem.c
index 66024b1884c1,f019ff500844..d08fa0f4eb9b
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@@ -1673,12 -1673,6 +1673,12 @@@ static int shmem_swapin_page(struct ino
}
wait_on_page_writeback(page);
+ /*
+ * Some architectures may have to restore extra metadata to the
+ * physical page after reading from swap.
+ */
+ arch_swap_restore(swap, page);
+
if (shmem_should_replace_page(page, gfp)) {
error = shmem_replace_page(&page, gfp, info, index);
if (error)
@@@ -2212,9 -2206,6 +2212,9 @@@ static int shmem_mmap(struct file *file
vma->vm_flags &= ~(VM_MAYWRITE);
}
+ /* arm64 - allow memory tagging on RAM-based files */
+ vma->vm_flags |= VM_MTE_ALLOWED;
+
file_accessed(file);
vma->vm_ops = &shmem_vm_ops;
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
@@@ -3765,7 -3756,6 +3765,6 @@@ static const struct file_operations shm
.read_iter = shmem_file_read_iter,
.write_iter = generic_file_write_iter,
.fsync = noop_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = shmem_fallocate,
#endif
diff --combined mm/swapfile.c
index 1d9fb474dada,2e50f52a14c7..7f1587b223ed
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@@ -716,7 -716,6 +716,7 @@@ static void swap_range_free(struct swap
else
swap_slot_free_notify = NULL;
while (offset <= end) {
+ arch_swap_invalidate_page(si->type, offset);
frontswap_invalidate_page(si->type, offset);
if (swap_slot_free_notify)
swap_slot_free_notify(si->bdev, offset);
@@@ -2676,7 -2675,6 +2676,7 @@@ SYSCALL_DEFINE1(swapoff, const char __u
frontswap_map = frontswap_map_get(p);
spin_unlock(&p->lock);
spin_unlock(&swap_lock);
+ arch_swap_invalidate_area(p->type);
frontswap_invalidate_area(p->type);
frontswap_map_set(p, NULL);
mutex_unlock(&swapon_mutex);
@@@ -2837,7 -2835,7 +2837,7 @@@ static int swaps_open(struct inode *ino
static const struct proc_ops swaps_proc_ops = {
.proc_flags = PROC_ENTRY_PERMANENT,
.proc_open = swaps_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = swaps_poll,
@@@ -2931,7 -2929,7 +2931,7 @@@ static int claim_swapfile(struct swap_i
* write only restriction. Hence zoned block devices are not
* suitable for swapping. Disallow them here.
*/
- if (blk_queue_is_zoned(p->bdev->bd_queue))
+ if (blk_queue_is_zoned(p->bdev->bd_disk->queue))
return -EINVAL;
p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
diff --combined net/bluetooth/6lowpan.c
index cff4944d5b66,573ef0c80521..7c492105b8c8
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@@ -50,7 -50,6 +50,7 @@@ static bool enable_6lowpan
/* We are listening incoming connections via this channel
*/
static struct l2cap_chan *listen_chan;
+static DEFINE_MUTEX(set_lock);
struct lowpan_peer {
struct list_head list;
@@@ -1079,14 -1078,12 +1079,14 @@@ static void do_enable_set(struct work_s
enable_6lowpan = set_enable->flag;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
}
listen_chan = bt_6lowpan_listen();
+ mutex_unlock(&set_lock);
kfree(set_enable);
}
@@@ -1138,13 -1135,11 +1138,13 @@@ static ssize_t lowpan_control_write(str
if (ret == -EINVAL)
return ret;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
listen_chan = NULL;
}
+ mutex_unlock(&set_lock);
if (conn) {
struct lowpan_peer *peer;
@@@ -1210,7 -1205,7 +1210,7 @@@ static int lowpan_control_open(struct i
static const struct file_operations lowpan_control_fops = {
.open = lowpan_control_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = lowpan_control_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined net/ipv4/netfilter/ipt_CLUSTERIP.c
index a8b980ad11d4,67472389c9c3..40af4bbf4519
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@@ -3,7 -3,7 +3,7 @@@
* (C) 2003-2004 by Harald Welte <laforge(a)netfilter.org>
* based on ideas of Fabio Olive Leite <olive(a)unixforge.org>
*
- * Development of this code funded by SuSE Linux AG, http://www.suse.com/
+ * Development of this code funded by SuSE Linux AG, https://www.suse.com/
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
@@@ -806,7 -806,7 +806,7 @@@ static ssize_t clusterip_proc_write(str
static const struct proc_ops clusterip_proc_ops = {
.proc_open = clusterip_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = clusterip_proc_write,
.proc_lseek = seq_lseek,
.proc_release = clusterip_proc_release,
--
LinuxNextTracking
1
0
Name of failed tests
====================
master
------
* checkpatch ./net/batman-adv/hard-interface.c
* checkpatch ./net/batman-adv/hard-interface.h
* checkpatch ./net/batman-adv/multicast.c
* checkpatch ./net/batman-adv/soft-interface.c
* checkpatch ./net/batman-adv/sysfs.c
Output of different failed tests
================================
master: checkpatch ./net/batman-adv/hard-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#566: FILE: ./net/batman-adv/hard-interface.c:566:
+ * slave interfaces)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#679: FILE: ./net/batman-adv/hard-interface.c:679:
+ * batadv_master_del_slave() - remove hard_iface from the current master iface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#681: FILE: ./net/batman-adv/hard-interface.c:681:
+ * @master: the master from which slave has to be removed
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#684: FILE: ./net/batman-adv/hard-interface.c:684:
+ * slave is free'd and the master can correctly change its internal state.
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#697: FILE: ./net/batman-adv/hard-interface.c:697:
+ if (master->netdev_ops->ndo_del_slave)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#750: FILE: ./net/batman-adv/hard-interface.c:750:
+ ret = batadv_master_del_slave(hard_iface, master);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#847: FILE: ./net/batman-adv/hard-interface.c:847:
+ * slave interfaces
total: 0 errors, 0 warnings, 13 checks, 1098 lines checked
master: checkpatch ./net/batman-adv/hard-interface.h
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#26: FILE: ./net/batman-adv/hard-interface.h:26:
+ * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#48: FILE: ./net/batman-adv/hard-interface.h:48:
+ * added as slave interface of a batman-adv soft interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#77: FILE: ./net/batman-adv/hard-interface.h:77:
+ * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#86: FILE: ./net/batman-adv/hard-interface.h:86:
+ * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was
total: 0 errors, 0 warnings, 4 checks, 144 lines checked
master: checkpatch ./net/batman-adv/multicast.c
-----------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#575: FILE: ./net/batman-adv/multicast.c:575:
+ * @dev: a bridge slave whose bridge to collect multicast addresses from
total: 0 errors, 0 warnings, 1 checks, 2430 lines checked
master: checkpatch ./net/batman-adv/soft-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#875: FILE: ./net/batman-adv/soft-interface.c:875:
+ * @slave_dev: net_device which should become the slave interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#880: FILE: ./net/batman-adv/soft-interface.c:880:
+static int batadv_softif_slave_add(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#881: FILE: ./net/batman-adv/soft-interface.c:881:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#888: FILE: ./net/batman-adv/soft-interface.c:888:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#907: FILE: ./net/batman-adv/soft-interface.c:907:
+static int batadv_softif_slave_del(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#908: FILE: ./net/batman-adv/soft-interface.c:908:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#913: FILE: ./net/batman-adv/soft-interface.c:913:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
total: 0 errors, 0 warnings, 15 checks, 1180 lines checked
master: checkpatch ./net/batman-adv/sysfs.c
-------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#378: FILE: ./net/batman-adv/sysfs.c:378:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#409: FILE: ./net/batman-adv/sysfs.c:409:
+ if (slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#410: FILE: ./net/batman-adv/sysfs.c:410:
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#425: FILE: ./net/batman-adv/sysfs.c:425:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#429: FILE: ./net/batman-adv/sysfs.c:429:
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
total: 0 errors, 0 warnings, 5 checks, 1272 lines checked
Statistics
==========
maint
-----
Failed tests: 0
Started build tests: 121
Tested Linux versions: 32
Tested configs: 103
master
------
Failed tests: 5
Started build tests: 115
Tested Linux versions: 32
Tested configs: 102
1
0
Name of failed tests
====================
master
------
* checkpatch ./net/batman-adv/hard-interface.c
* checkpatch ./net/batman-adv/hard-interface.h
* checkpatch ./net/batman-adv/multicast.c
* checkpatch ./net/batman-adv/soft-interface.c
* checkpatch ./net/batman-adv/sysfs.c
Output of different failed tests
================================
master: checkpatch ./net/batman-adv/hard-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#566: FILE: ./net/batman-adv/hard-interface.c:566:
+ * slave interfaces)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#679: FILE: ./net/batman-adv/hard-interface.c:679:
+ * batadv_master_del_slave() - remove hard_iface from the current master iface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#681: FILE: ./net/batman-adv/hard-interface.c:681:
+ * @master: the master from which slave has to be removed
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#684: FILE: ./net/batman-adv/hard-interface.c:684:
+ * slave is free'd and the master can correctly change its internal state.
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#697: FILE: ./net/batman-adv/hard-interface.c:697:
+ if (master->netdev_ops->ndo_del_slave)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#750: FILE: ./net/batman-adv/hard-interface.c:750:
+ ret = batadv_master_del_slave(hard_iface, master);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#847: FILE: ./net/batman-adv/hard-interface.c:847:
+ * slave interfaces
total: 0 errors, 0 warnings, 13 checks, 1098 lines checked
master: checkpatch ./net/batman-adv/hard-interface.h
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#26: FILE: ./net/batman-adv/hard-interface.h:26:
+ * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#48: FILE: ./net/batman-adv/hard-interface.h:48:
+ * added as slave interface of a batman-adv soft interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#77: FILE: ./net/batman-adv/hard-interface.h:77:
+ * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#86: FILE: ./net/batman-adv/hard-interface.h:86:
+ * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was
total: 0 errors, 0 warnings, 4 checks, 144 lines checked
master: checkpatch ./net/batman-adv/multicast.c
-----------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#575: FILE: ./net/batman-adv/multicast.c:575:
+ * @dev: a bridge slave whose bridge to collect multicast addresses from
total: 0 errors, 0 warnings, 1 checks, 2430 lines checked
master: checkpatch ./net/batman-adv/soft-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#875: FILE: ./net/batman-adv/soft-interface.c:875:
+ * @slave_dev: net_device which should become the slave interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#880: FILE: ./net/batman-adv/soft-interface.c:880:
+static int batadv_softif_slave_add(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#881: FILE: ./net/batman-adv/soft-interface.c:881:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#888: FILE: ./net/batman-adv/soft-interface.c:888:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#907: FILE: ./net/batman-adv/soft-interface.c:907:
+static int batadv_softif_slave_del(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#908: FILE: ./net/batman-adv/soft-interface.c:908:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#913: FILE: ./net/batman-adv/soft-interface.c:913:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
total: 0 errors, 0 warnings, 15 checks, 1180 lines checked
master: checkpatch ./net/batman-adv/sysfs.c
-------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#378: FILE: ./net/batman-adv/sysfs.c:378:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#409: FILE: ./net/batman-adv/sysfs.c:409:
+ if (slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#410: FILE: ./net/batman-adv/sysfs.c:410:
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#425: FILE: ./net/batman-adv/sysfs.c:425:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#429: FILE: ./net/batman-adv/sysfs.c:429:
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
total: 0 errors, 0 warnings, 5 checks, 1272 lines checked
Statistics
==========
master
------
Failed tests: 5
Started build tests: 115
Tested Linux versions: 32
Tested configs: 105
maint
-----
Failed tests: 0
Started build tests: 117
Tested Linux versions: 32
Tested configs: 101
1
0
[linux-next] LinuxNextTracking branch, master, updated. next-20200716
by batmanï¼ open-mesh.org 16 Jul '20
by batmanï¼ open-mesh.org 16 Jul '20
16 Jul '20
The following commit has been merged in the master branch:
commit 4c9c77df949fe3f38d1034c8cedf5aab32d5ee8a
Merge: 534eb5f1c29e43ff1df3afc9886b720fa31ffd5a 2750e3608b796cd913564387ffd40f276e50ad21
Author: Stephen Rothwell <sfr(a)canb.auug.org.au>
Date: Thu Jul 16 17:13:28 2020 +1000
Merge remote-tracking branch 'set_fs/set_fs-rw'
# Conflicts:
# drivers/acpi/battery.c
# fs/btrfs/file.c
diff --combined Documentation/process/clang-format.rst
index 82676e5a7c6e,7f04493cba4f..57186ae91365
--- a/Documentation/process/clang-format.rst
+++ b/Documentation/process/clang-format.rst
@@@ -32,7 -32,7 +32,7 @@@ Linux distributions for a long time. Se
your repositories. Otherwise, you can either download pre-built
LLVM/clang binaries or build the source code from:
- http://releases.llvm.org/download.html
+ https://releases.llvm.org/download.html
See more information about the tool at:
@@@ -136,7 -136,7 +136,7 @@@ In particular, some very common ones yo
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
@@@ -147,7 -147,7 +147,7 @@@
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
diff --combined arch/arm/mm/alignment.c
index f4bfc1cac91a,412cab88402a..8666935340db
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@@ -164,7 -164,7 +164,7 @@@ static ssize_t alignment_proc_write(str
static const struct proc_ops alignment_proc_ops = {
.proc_open = alignment_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = alignment_proc_write,
@@@ -799,7 -799,7 +799,7 @@@ static int alignment_get_thumb(struct p
static int
do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
- union offset_union uninitialized_var(offset);
+ union offset_union offset;
unsigned long instrptr;
int (*handler)(unsigned long addr, u32 instr, struct pt_regs *regs);
unsigned int type;
diff --combined arch/powerpc/mm/ptdump/hashpagetable.c
index 5b8bd34cd3a1,94a6124f9740..930d9cfd6316
--- a/arch/powerpc/mm/ptdump/hashpagetable.c
+++ b/arch/powerpc/mm/ptdump/hashpagetable.c
@@@ -258,7 -258,7 +258,7 @@@ static int pseries_find(unsigned long e
for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) {
lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes);
- if (lpar_rc != H_SUCCESS)
+ if (lpar_rc)
continue;
for (j = 0; j < 4; j++) {
if (HPTE_V_COMPARE(ptes[j].v, want_v) &&
@@@ -533,7 -533,7 +533,7 @@@ static int ptdump_open(struct inode *in
static const struct file_operations ptdump_fops = {
.open = ptdump_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined arch/powerpc/platforms/pseries/lpar.c
index f82569a505f1,2b13a67d60e2..86cf31ac8be0
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@@ -584,7 -584,7 +584,7 @@@ static int vcpudispatch_stats_open(stru
static const struct proc_ops vcpudispatch_stats_proc_ops = {
.proc_open = vcpudispatch_stats_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = vcpudispatch_stats_write,
.proc_lseek = seq_lseek,
.proc_release = single_release,
@@@ -628,7 -628,7 +628,7 @@@ static int vcpudispatch_stats_freq_open
static const struct proc_ops vcpudispatch_stats_freq_proc_ops = {
.proc_open = vcpudispatch_stats_freq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = vcpudispatch_stats_freq_write,
.proc_lseek = seq_lseek,
.proc_release = single_release,
@@@ -1680,11 -1680,9 +1680,11 @@@ static int pseries_lpar_register_proces
if (table_size)
flags |= PROC_TABLE_NEW;
- if (radix_enabled())
- flags |= PROC_TABLE_RADIX | PROC_TABLE_GTSE;
- else
+ if (radix_enabled()) {
+ flags |= PROC_TABLE_RADIX;
+ if (mmu_has_feature(MMU_FTR_GTSE))
+ flags |= PROC_TABLE_GTSE;
+ } else
flags |= PROC_TABLE_HPT_SLB;
for (;;) {
rc = plpar_hcall_norets(H_REGISTER_PROC_TBL, flags, base,
diff --combined arch/um/kernel/process.c
index 26b5e243d3fc,f3e4bd48f6d5..77caa0202fc3
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@@ -152,7 -152,7 +152,7 @@@ void fork_handler(void
userspace(¤t->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
-int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
+int copy_thread(unsigned long clone_flags, unsigned long sp,
unsigned long arg, struct task_struct * p, unsigned long tls)
{
void (*handler)(void);
@@@ -312,7 -312,7 +312,7 @@@ static ssize_t sysemu_proc_write(struc
static const struct proc_ops sysemu_proc_ops = {
.proc_open = sysemu_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = sysemu_proc_write,
diff --combined arch/x86/mm/pat/set_memory.c
index d1b2a889f035,95b12dd5bf0e..355de93199ee
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@@ -135,7 -135,7 +135,7 @@@ static inline void cpa_inc_2m_checked(v
static inline void cpa_inc_4k_install(void)
{
- cpa_4k_install++;
+ data_race(cpa_4k_install++);
}
static inline void cpa_inc_lp_sameprot(int level)
@@@ -173,7 -173,7 +173,7 @@@ static int cpastats_open(struct inode *
static const struct file_operations cpastats_fops = {
.open = cpastats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined block/blk-mq-debugfs.c
index 3f09bcb8a6fd,4e427fc88a26..5c8333d1ceed
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@@ -404,7 -404,8 +404,7 @@@ static bool hctx_show_busy_rq(struct re
const struct show_busy_params *params = data;
if (rq->mq_hctx == params->hctx)
- __blk_mq_debugfs_rq_show(params->m,
- list_entry_rq(&rq->queuelist));
+ __blk_mq_debugfs_rq_show(params->m, rq);
return true;
}
@@@ -772,7 -773,7 +772,7 @@@ static int blk_mq_debugfs_release(struc
static const struct file_operations blk_mq_debugfs_fops = {
.open = blk_mq_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = blk_mq_debugfs_write,
.llseek = seq_lseek,
.release = blk_mq_debugfs_release,
@@@ -826,6 -827,9 +826,6 @@@ void blk_mq_debugfs_register(struct req
struct blk_mq_hw_ctx *hctx;
int i;
- q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent),
- blk_debugfs_root);
-
debugfs_create_files(q->debugfs_dir, q, blk_mq_debugfs_queue_attrs);
/*
@@@ -856,7 -860,9 +856,7 @@@
void blk_mq_debugfs_unregister(struct request_queue *q)
{
- debugfs_remove_recursive(q->debugfs_dir);
q->sched_debugfs_dir = NULL;
- q->debugfs_dir = NULL;
}
static void blk_mq_debugfs_register_ctx(struct blk_mq_hw_ctx *hctx,
diff --combined drivers/block/nbd.c
index 3ff4054d6834,4c54d366afde..25208ff7166e
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@@ -784,7 -784,6 +784,7 @@@ static void recv_work(struct work_struc
struct nbd_device *nbd = args->nbd;
struct nbd_config *config = nbd->config;
struct nbd_cmd *cmd;
+ struct request *rq;
while (1) {
cmd = nbd_read_stat(nbd, args->index);
@@@ -797,9 -796,7 +797,9 @@@
break;
}
- blk_mq_complete_request(blk_mq_rq_from_pdu(cmd));
+ rq = blk_mq_rq_from_pdu(cmd);
+ if (likely(!blk_should_fake_timeout(rq->q)))
+ blk_mq_complete_request(rq);
}
atomic_dec(&config->recv_threads);
wake_up(&config->recv_wq);
@@@ -1547,7 -1544,7 +1547,7 @@@ static int nbd_dbg_tasks_open(struct in
static const struct file_operations nbd_dbg_tasks_ops = {
.open = nbd_dbg_tasks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1582,7 -1579,7 +1582,7 @@@ static int nbd_dbg_flags_open(struct in
static const struct file_operations nbd_dbg_flags_ops = {
.open = nbd_dbg_flags_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/block/pktcdvd.c
index 4becc1efe775,50c6d6eacb59..c81f637141c0
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@@ -36,7 -36,7 +36,7 @@@
* block device, assembling the pieces to full packets and queuing them to the
* packet I/O scheduler.
*
- * At the top layer there is a custom make_request_fn function that forwards
+ * At the top layer there is a custom ->submit_bio function that forwards
* read requests directly to the iosched queue and puts write requests in the
* unaligned write queue. A kernel thread performs the necessary read
* gathering to convert the unaligned writes to aligned writes and then feeds
@@@ -464,7 -464,7 +464,7 @@@ static int pkt_debugfs_fops_open(struc
static const struct file_operations debug_fops = {
.open = pkt_debugfs_fops_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -913,7 -913,7 +913,7 @@@ static void pkt_iosched_process_queue(s
}
atomic_inc(&pd->cdrw.pending_bios);
- generic_make_request(bio);
+ submit_bio_noacct(bio);
}
}
@@@ -2428,15 -2428,15 +2428,15 @@@ static void pkt_make_request_write(stru
}
}
-static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t pkt_submit_bio(struct bio *bio)
{
struct pktcdvd_device *pd;
char b[BDEVNAME_SIZE];
struct bio *split;
- blk_queue_split(q, &bio);
+ blk_queue_split(&bio);
- pd = q->queuedata;
+ pd = bio->bi_disk->queue->queuedata;
if (!pd) {
pr_err("%s incorrect request queue\n", bio_devname(bio, b));
goto end_io;
@@@ -2480,7 -2480,7 +2480,7 @@@
split = bio;
}
- pkt_make_request_write(q, split);
+ pkt_make_request_write(bio->bi_disk->queue, split);
} while (split != bio);
return BLK_QC_T_NONE;
@@@ -2685,7 -2685,6 +2685,7 @@@ static char *pkt_devnode(struct gendis
static const struct block_device_operations pktcdvd_ops = {
.owner = THIS_MODULE,
+ .submit_bio = pkt_submit_bio,
.open = pkt_open,
.release = pkt_close,
.ioctl = pkt_ioctl,
@@@ -2750,7 -2749,7 +2750,7 @@@ static int pkt_setup_dev(dev_t dev, dev
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
disk->private_data = pd;
- disk->queue = blk_alloc_queue(pkt_make_request, NUMA_NO_NODE);
+ disk->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!disk->queue)
goto out_mem2;
diff --combined drivers/block/rsxx/core.c
index 7e261224ff10,1adfd0f273b4..e631749e14ca
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@@ -209,7 -209,7 +209,7 @@@ static const struct file_operations deb
static const struct file_operations debugfs_stats_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -217,7 -217,7 +217,7 @@@
static const struct file_operations debugfs_pci_regs_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_pci_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -562,15 -562,13 +562,15 @@@ static int rsxx_eeh_frozen(struct pci_d
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
return 0;
@@@ -627,7 -625,7 +627,7 @@@ static int rsxx_eeh_fifo_flush_poll(str
}
static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev,
- enum pci_channel_state error)
+ pci_channel_state_t error)
{
int st;
@@@ -713,15 -711,15 +713,15 @@@ static pci_ers_result_t rsxx_slot_reset
failed_hw_buffers_init:
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev,
- STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev,
- COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
failed_hw_setup:
rsxx_eeh_failure(dev);
diff --combined drivers/crypto/hisilicon/qm.c
index 6527c53b073f,a5c3e21e0fe6..b594dc72807c
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@@ -1054,7 -1054,7 +1054,7 @@@ static int qm_regs_open(struct inode *i
static const struct file_operations qm_regs_fops = {
.owner = THIS_MODULE,
.open = qm_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.release = single_release,
};
@@@ -1064,10 -1064,19 +1064,10 @@@ static ssize_t qm_cmd_read(struct file
char buf[QM_DBG_READ_LEN];
int len;
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
-
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n",
- "Please echo help to cmd to get help information");
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n",
+ "Please echo help to cmd to get help information");
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
-
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static void *qm_ctx_alloc(struct hisi_qm *qm, size_t ctx_size,
@@@ -1732,7 -1741,7 +1732,7 @@@ void hisi_qm_release_qp(struct hisi_qp
}
EXPORT_SYMBOL_GPL(hisi_qm_release_qp);
-static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
+static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
{
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
@@@ -1804,7 -1813,7 +1804,7 @@@ static int qm_start_qp_nolock(struct hi
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
int qp_id = qp->qp_id;
- int pasid = arg;
+ u32 pasid = arg;
int ret;
if (!qm_qp_avail_state(qm, qp, QP_START))
@@@ -2170,12 -2179,8 +2170,12 @@@ static int qm_alloc_uacce(struct hisi_q
.flags = UACCE_DEV_SVA,
.ops = &uacce_qm_ops,
};
+ int ret;
- strncpy(interface.name, pdev->driver->name, sizeof(interface.name));
+ ret = strscpy(interface.name, pdev->driver->name,
+ sizeof(interface.name));
+ if (ret < 0)
+ return -ENAMETOOLONG;
uacce = uacce_alloc(&pdev->dev, &interface);
if (IS_ERR(uacce))
@@@ -2686,12 -2691,24 +2686,12 @@@ static ssize_t qm_status_read(struct fi
{
struct hisi_qm *qm = filp->private_data;
char buf[QM_DBG_READ_LEN];
- int val, cp_len, len;
-
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
+ int val, len;
val = atomic_read(&qm->status.flags);
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- if (!len)
- return -EFAULT;
-
- cp_len = copy_to_user(buffer, buf, len);
- if (cp_len)
- return -EFAULT;
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static const struct file_operations qm_status_fops = {
diff --combined drivers/crypto/qat/qat_common/adf_cfg.c
index ac462796cefc,4b77c6f05b3e..44c7027f8096
--- a/drivers/crypto/qat/qat_common/adf_cfg.c
+++ b/drivers/crypto/qat/qat_common/adf_cfg.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/list.h>
@@@ -66,7 -110,7 +66,7 @@@ static int qat_dev_cfg_open(struct inod
static const struct file_operations qat_dev_cfg_fops = {
.open = qat_dev_cfg_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/crypto/qat/qat_common/adf_transport_debug.c
index 2a2eccbf56ec,6133a869aeb1..659917c848d9
--- a/drivers/crypto/qat/qat_common/adf_transport_debug.c
+++ b/drivers/crypto/qat/qat_common/adf_transport_debug.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
@@@ -98,7 -142,7 +98,7 @@@ static int adf_ring_open(struct inode *
static const struct file_operations adf_ring_debug_fops = {
.open = adf_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
@@@ -209,7 -253,7 +209,7 @@@ static int adf_bank_open(struct inode *
static const struct file_operations adf_bank_debug_fops = {
.open = adf_bank_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/firmware/tegra/bpmp-debugfs.c
index c1bbba9ee93a,3f0a89ce131a..e861d407b7d1
--- a/drivers/firmware/tegra/bpmp-debugfs.c
+++ b/drivers/firmware/tegra/bpmp-debugfs.c
@@@ -4,14 -4,11 +4,14 @@@
*/
#include <linux/debugfs.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <soc/tegra/bpmp.h>
#include <soc/tegra/bpmp-abi.h>
+static DEFINE_MUTEX(bpmp_debug_lock);
+
struct seqbuf {
char *buf;
size_t pos;
@@@ -99,354 -96,6 +99,354 @@@ static const char *get_filename(struct
return filename;
}
+static int mrq_debug_open(struct tegra_bpmp *bpmp, const char *name,
+ uint32_t *fd, uint32_t *len, bool write)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(write ? CMD_DEBUG_OPEN_WO : CMD_DEBUG_OPEN_RO),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ ssize_t sz_name;
+ int err = 0;
+
+ sz_name = strscpy(req.fop.name, name, sizeof(req.fop.name));
+ if (sz_name < 0) {
+ pr_err("File name too large: %s\n", name);
+ return -EINVAL;
+ }
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ *len = resp.fop.datalen;
+ *fd = resp.fop.fd;
+
+ return 0;
+}
+
+static int mrq_debug_close(struct tegra_bpmp *bpmp, uint32_t fd)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_CLOSE),
+ .frd = {
+ .fd = fd,
+ },
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ int err = 0;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name,
+ char *data, size_t sz_data, uint32_t *nbytes)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_READ),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ int remaining, err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 0);
+ if (err)
+ goto out;
+
+ if (len > sz_data) {
+ err = -EFBIG;
+ goto close;
+ }
+
+ req.frd.fd = fd;
+ remaining = len;
+
+ while (remaining > 0) {
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ if (resp.frd.readlen > remaining) {
+ pr_err("%s: read data length invalid\n", __func__);
+ err = -EINVAL;
+ goto close;
+ }
+
+ memcpy(data, resp.frd.data, resp.frd.readlen);
+ data += resp.frd.readlen;
+ remaining -= resp.frd.readlen;
+ }
+
+ *nbytes = len;
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int mrq_debug_write(struct tegra_bpmp *bpmp, const char *name,
+ uint8_t *data, size_t sz_data)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_WRITE)
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ size_t remaining;
+ int err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 1);
+ if (err)
+ goto out;
+
+ if (sz_data > len) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ req.fwr.fd = fd;
+ remaining = sz_data;
+
+ while (remaining > 0) {
+ len = min(remaining, sizeof(req.fwr.data));
+ memcpy(req.fwr.data, data, len);
+ req.fwr.datalen = len;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ data += req.fwr.datalen;
+ remaining -= req.fwr.datalen;
+ }
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int bpmp_debug_show(struct seq_file *m, void *p)
+{
+ struct file *file = m->private;
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ uint32_t nbytes = 0;
+ size_t len;
+ int err;
+
+ len = seq_get_buf(m, &databuf);
+ if (!databuf)
+ return -ENOMEM;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ err = mrq_debug_read(bpmp, filename, databuf, len, &nbytes);
+ if (!err)
+ seq_commit(m, nbytes);
+
+ return err;
+}
+
+static ssize_t bpmp_debug_store(struct file *file, const char __user *buf,
+ size_t count, loff_t *f_pos)
+{
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ ssize_t err;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ databuf = kmalloc(count, GFP_KERNEL);
+ if (!databuf)
+ return -ENOMEM;
+
+ if (copy_from_user(databuf, buf, count)) {
+ err = -EFAULT;
+ goto free_ret;
+ }
+
+ err = mrq_debug_write(bpmp, filename, databuf, count);
+
+free_ret:
+ kfree(databuf);
+
+ return err ?: count;
+}
+
+static int bpmp_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open_size(file, bpmp_debug_show, file, SZ_256K);
+}
+
+static const struct file_operations bpmp_debug_fops = {
+ .open = bpmp_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = bpmp_debug_store,
+ .release = single_release,
+};
+
+static int bpmp_populate_debugfs_inband(struct tegra_bpmp *bpmp,
+ struct dentry *parent,
+ char *ppath)
+{
+ const size_t pathlen = SZ_256;
+ const size_t bufsize = SZ_16K;
+ uint32_t dsize, attrs = 0;
+ struct dentry *dentry;
+ struct seqbuf seqbuf;
+ char *buf, *pathbuf;
+ const char *name;
+ int err = 0;
+
+ if (!bpmp || !parent || !ppath)
+ return -EINVAL;
+
+ buf = kmalloc(bufsize, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pathbuf = kzalloc(pathlen, GFP_KERNEL);
+ if (!pathbuf) {
+ kfree(buf);
+ return -ENOMEM;
+ }
+
+ err = mrq_debug_read(bpmp, ppath, buf, bufsize, &dsize);
+ if (err)
+ goto out;
+
+ seqbuf_init(&seqbuf, buf, dsize);
+
+ while (!seqbuf_eof(&seqbuf)) {
+ err = seqbuf_read_u32(&seqbuf, &attrs);
+ if (err)
+ goto out;
+
+ err = seqbuf_read_str(&seqbuf, &name);
+ if (err < 0)
+ goto out;
+
+ if (attrs & DEBUGFS_S_ISDIR) {
+ size_t len;
+
+ dentry = debugfs_create_dir(name, parent);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
+ goto out;
+ }
+
+ len = strlen(ppath) + strlen(name) + 1;
+ if (len >= pathlen) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ strncpy(pathbuf, ppath, pathlen);
+ strncat(pathbuf, name, strlen(name));
+ strcat(pathbuf, "/");
+
+ err = bpmp_populate_debugfs_inband(bpmp, dentry,
+ pathbuf);
+ if (err < 0)
+ goto out;
+ } else {
+ umode_t mode;
+
+ mode = attrs & DEBUGFS_S_IRUSR ? 0400 : 0;
+ mode |= attrs & DEBUGFS_S_IWUSR ? 0200 : 0;
+ dentry = debugfs_create_file(name, mode, parent, bpmp,
+ &bpmp_debug_fops);
+ if (!dentry) {
+ err = -ENOMEM;
+ goto out;
+ }
+ }
+ }
+
+out:
+ kfree(pathbuf);
+ kfree(buf);
+
+ return err;
+}
+
static int mrq_debugfs_read(struct tegra_bpmp *bpmp,
dma_addr_t name, size_t sz_name,
dma_addr_t data, size_t sz_data,
@@@ -478,8 -127,6 +478,8 @@@
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.fop.nbytes;
@@@ -537,8 -184,6 +537,8 @@@ static int mrq_debugfs_dumpdir(struct t
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.dumpdir.nbytes;
@@@ -557,7 -202,7 +557,7 @@@ static int debugfs_show(struct seq_fil
char buf[256];
const char *filename;
size_t len, nbytes;
- int ret;
+ int err;
filename = get_filename(bpmp, file, buf, sizeof(buf));
if (!filename)
@@@ -571,24 -216,24 +571,24 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
len = strlen(filename);
strncpy(namevirt, filename, namesize);
- ret = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
+ err = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
&nbytes);
- if (!ret)
+ if (!err)
seq_write(m, datavirt, nbytes);
dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret;
+ return err;
}
static int debugfs_open(struct inode *inode, struct file *file)
@@@ -608,7 -253,7 +608,7 @@@ static ssize_t debugfs_store(struct fil
char fnamebuf[256];
const char *filename;
size_t len;
- int ret;
+ int err;
filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
if (!filename)
@@@ -622,7 -267,7 +622,7 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
@@@ -630,11 -275,11 +630,11 @@@
strncpy(namevirt, filename, namesize);
if (copy_from_user(datavirt, buf, count)) {
- ret = -EFAULT;
+ err = -EFAULT;
goto free_databuf;
}
- ret = mrq_debugfs_write(bpmp, namephys, len, dataphys,
+ err = mrq_debugfs_write(bpmp, namephys, len, dataphys,
count);
free_databuf:
@@@ -642,12 -287,12 +642,12 @@@
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret ?: count;
+ return err ?: count;
}
static const struct file_operations debugfs_fops = {
.open = debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.write = debugfs_store,
.release = single_release,
@@@ -705,66 -350,59 +705,66 @@@ static int bpmp_populate_dir(struct teg
return 0;
}
-static int create_debugfs_mirror(struct tegra_bpmp *bpmp, void *buf,
- size_t bufsize, struct dentry *root)
+static int bpmp_populate_debugfs_shmem(struct tegra_bpmp *bpmp)
{
struct seqbuf seqbuf;
+ const size_t sz = SZ_512K;
+ dma_addr_t phys;
+ size_t nbytes;
+ void *virt;
int err;
- bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
- if (!bpmp->debugfs_mirror)
+ virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
+ GFP_KERNEL | GFP_DMA32);
+ if (!virt)
return -ENOMEM;
- seqbuf_init(&seqbuf, buf, bufsize);
- err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+ err = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
if (err < 0) {
- debugfs_remove_recursive(bpmp->debugfs_mirror);
- bpmp->debugfs_mirror = NULL;
+ goto free;
+ } else if (nbytes > sz) {
+ err = -EINVAL;
+ goto free;
}
+ seqbuf_init(&seqbuf, virt, nbytes);
+ err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+free:
+ dma_free_coherent(bpmp->dev, sz, virt, phys);
+
return err;
}
int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
{
- dma_addr_t phys;
- void *virt;
- const size_t sz = SZ_256K;
- size_t nbytes;
- int ret;
struct dentry *root;
+ bool inband;
+ int err;
- if (!tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
+ inband = tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUG);
+
+ if (!inband && !tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
return 0;
root = debugfs_create_dir("bpmp", NULL);
if (!root)
return -ENOMEM;
- virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
- GFP_KERNEL | GFP_DMA32);
- if (!virt) {
- ret = -ENOMEM;
+ bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
+ if (!bpmp->debugfs_mirror) {
+ err = -ENOMEM;
goto out;
}
- ret = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
- if (ret < 0)
- goto free;
+ if (inband)
+ err = bpmp_populate_debugfs_inband(bpmp, bpmp->debugfs_mirror,
+ "/");
+ else
+ err = bpmp_populate_debugfs_shmem(bpmp);
- ret = create_debugfs_mirror(bpmp, virt, nbytes, root);
-free:
- dma_free_coherent(bpmp->dev, sz, virt, phys);
out:
- if (ret < 0)
- debugfs_remove(root);
+ if (err < 0)
+ debugfs_remove_recursive(root);
- return ret;
+ return err;
}
diff --combined drivers/gpio/gpiolib.c
index 80137c1b3cdc,0ca1acff0e37..25ef7ed30a06
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@@ -17,16 -17,20 +17,16 @@@
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/cdev.h>
#include <linux/fs.h>
-#include <linux/uaccess.h>
#include <linux/compat.h>
-#include <linux/anon_inodes.h>
#include <linux/file.h>
-#include <linux/kfifo.h>
-#include <linux/poll.h>
-#include <linux/timekeeping.h>
#include <uapi/linux/gpio.h>
#include "gpiolib.h"
#include "gpiolib-of.h"
#include "gpiolib-acpi.h"
+#include "gpiolib-cdev.h"
+#include "gpiolib-sysfs.h"
#define CREATE_TRACE_POINTS
#include <trace/events/gpio.h>
@@@ -421,6 -425,1105 +421,6 @@@ bool gpiochip_line_is_valid(const struc
}
EXPORT_SYMBOL_GPL(gpiochip_line_is_valid);
-/*
- * GPIO line handle management
- */
-
-/**
- * struct linehandle_state - contains the state of a userspace handle
- * @gdev: the GPIO device the handle pertains to
- * @label: consumer label used to tag descriptors
- * @descs: the GPIO descriptors held by this handle
- * @numdescs: the number of descriptors held in the descs array
- */
-struct linehandle_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *descs[GPIOHANDLES_MAX];
- u32 numdescs;
-};
-
-#define GPIOHANDLE_REQUEST_VALID_FLAGS \
- (GPIOHANDLE_REQUEST_INPUT | \
- GPIOHANDLE_REQUEST_OUTPUT | \
- GPIOHANDLE_REQUEST_ACTIVE_LOW | \
- GPIOHANDLE_REQUEST_BIAS_PULL_UP | \
- GPIOHANDLE_REQUEST_BIAS_PULL_DOWN | \
- GPIOHANDLE_REQUEST_BIAS_DISABLE | \
- GPIOHANDLE_REQUEST_OPEN_DRAIN | \
- GPIOHANDLE_REQUEST_OPEN_SOURCE)
-
-static int linehandle_validate_flags(u32 flags)
-{
- /* Return an error if an unknown flag is set */
- if (flags & ~GPIOHANDLE_REQUEST_VALID_FLAGS)
- return -EINVAL;
-
- /*
- * Do not allow both INPUT & OUTPUT flags to be set as they are
- * contradictory.
- */
- if ((flags & GPIOHANDLE_REQUEST_INPUT) &&
- (flags & GPIOHANDLE_REQUEST_OUTPUT))
- return -EINVAL;
-
- /*
- * Do not allow OPEN_SOURCE & OPEN_DRAIN flags in a single request. If
- * the hardware actually supports enabling both at the same time the
- * electrical result would be disastrous.
- */
- if ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) &&
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* OPEN_DRAIN and OPEN_SOURCE flags only make sense for output mode. */
- if (!(flags & GPIOHANDLE_REQUEST_OUTPUT) &&
- ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE)))
- return -EINVAL;
-
- /* Bias flags only allowed for input or output mode. */
- if (!((flags & GPIOHANDLE_REQUEST_INPUT) ||
- (flags & GPIOHANDLE_REQUEST_OUTPUT)) &&
- ((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (flags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- return 0;
-}
-
-static long linehandle_set_config(struct linehandle_state *lh,
- void __user *ip)
-{
- struct gpiohandle_config gcnf;
- struct gpio_desc *desc;
- int i, ret;
- u32 lflags;
- unsigned long *flagsp;
-
- if (copy_from_user(&gcnf, ip, sizeof(gcnf)))
- return -EFAULT;
-
- lflags = gcnf.flags;
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- for (i = 0; i < lh->numdescs; i++) {
- desc = lh->descs[i];
- flagsp = &desc->flags;
-
- assign_bit(FLAG_ACTIVE_LOW, flagsp,
- lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW);
-
- assign_bit(FLAG_OPEN_DRAIN, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN);
-
- assign_bit(FLAG_OPEN_SOURCE, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE);
-
- assign_bit(FLAG_PULL_UP, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP);
-
- assign_bit(FLAG_PULL_DOWN, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN);
-
- assign_bit(FLAG_BIAS_DISABLE, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE);
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!gcnf.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- return ret;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- return ret;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_CONFIG, desc);
- }
- return 0;
-}
-
-static long linehandle_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct linehandle_state *lh = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
- DECLARE_BITMAP(vals, GPIOHANDLES_MAX);
- int i;
-
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- /* NOTE: It's ok to read values of output lines. */
- int ret = gpiod_get_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- if (ret)
- return ret;
-
- memset(&ghd, 0, sizeof(ghd));
- for (i = 0; i < lh->numdescs; i++)
- ghd.values[i] = test_bit(i, vals);
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- } else if (cmd == GPIOHANDLE_SET_LINE_VALUES_IOCTL) {
- /*
- * All line descriptors were created at once with the same
- * flags so just check if the first one is really output.
- */
- if (!test_bit(FLAG_IS_OUT, &lh->descs[0]->flags))
- return -EPERM;
-
- if (copy_from_user(&ghd, ip, sizeof(ghd)))
- return -EFAULT;
-
- /* Clamp all values to [0,1] */
- for (i = 0; i < lh->numdescs; i++)
- __assign_bit(i, vals, ghd.values[i]);
-
- /* Reuse the array setting function */
- return gpiod_set_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- } else if (cmd == GPIOHANDLE_SET_CONFIG_IOCTL) {
- return linehandle_set_config(lh, ip);
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long linehandle_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return linehandle_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static int linehandle_release(struct inode *inode, struct file *filep)
-{
- struct linehandle_state *lh = filep->private_data;
- struct gpio_device *gdev = lh->gdev;
- int i;
-
- for (i = 0; i < lh->numdescs; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
- kfree(lh);
- put_device(&gdev->dev);
- return 0;
-}
-
-static const struct file_operations linehandle_fileops = {
- .release = linehandle_release,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = linehandle_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = linehandle_ioctl_compat,
-#endif
-};
-
-static int linehandle_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpiohandle_request handlereq;
- struct linehandle_state *lh;
- struct file *file;
- int fd, i, count = 0, ret;
- u32 lflags;
-
- if (copy_from_user(&handlereq, ip, sizeof(handlereq)))
- return -EFAULT;
- if ((handlereq.lines == 0) || (handlereq.lines > GPIOHANDLES_MAX))
- return -EINVAL;
-
- lflags = handlereq.flags;
-
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- lh = kzalloc(sizeof(*lh), GFP_KERNEL);
- if (!lh)
- return -ENOMEM;
- lh->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- handlereq.consumer_label[sizeof(handlereq.consumer_label)-1] = '\0';
- if (strlen(handlereq.consumer_label)) {
- lh->label = kstrdup(handlereq.consumer_label,
- GFP_KERNEL);
- if (!lh->label) {
- ret = -ENOMEM;
- goto out_free_lh;
- }
- }
-
- /* Request each GPIO */
- for (i = 0; i < handlereq.lines; i++) {
- u32 offset = handlereq.lineoffsets[i];
- struct gpio_desc *desc = gpiochip_get_desc(gdev->chip, offset);
-
- if (IS_ERR(desc)) {
- ret = PTR_ERR(desc);
- goto out_free_descs;
- }
-
- ret = gpiod_request(desc, lh->label);
- if (ret)
- goto out_free_descs;
- lh->descs[i] = desc;
- count = i + 1;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN)
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_set_transitory(desc, false);
- if (ret < 0)
- goto out_free_descs;
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!handlereq.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- goto out_free_descs;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_descs;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- dev_dbg(&gdev->dev, "registered chardev handle for line %d\n",
- offset);
- }
- /* Let i point at the last handle */
- i--;
- lh->numdescs = handlereq.lines;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_descs;
- }
-
- file = anon_inode_getfile("gpio-linehandle",
- &linehandle_fileops,
- lh,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- handlereq.fd = fd;
- if (copy_to_user(ip, &handlereq, sizeof(handlereq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- dev_dbg(&gdev->dev, "registered chardev handle for %d lines\n",
- lh->numdescs);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_descs:
- for (i = 0; i < count; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
-out_free_lh:
- kfree(lh);
- put_device(&gdev->dev);
- return ret;
-}
-
-/*
- * GPIO line event management
- */
-
-/**
- * struct lineevent_state - contains the state of a userspace event
- * @gdev: the GPIO device the event pertains to
- * @label: consumer label used to tag descriptors
- * @desc: the GPIO descriptor held by this event
- * @eflags: the event flags this line was requested with
- * @irq: the interrupt that trigger in response to events on this GPIO
- * @wait: wait queue that handles blocking reads of events
- * @events: KFIFO for the GPIO events
- * @timestamp: cache for the timestamp storing it between hardirq
- * and IRQ thread, used to bring the timestamp close to the actual
- * event
- */
-struct lineevent_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *desc;
- u32 eflags;
- int irq;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioevent_data, 16);
- u64 timestamp;
-};
-
-#define GPIOEVENT_REQUEST_VALID_FLAGS \
- (GPIOEVENT_REQUEST_RISING_EDGE | \
- GPIOEVENT_REQUEST_FALLING_EDGE)
-
-static __poll_t lineevent_poll(struct file *filep,
- struct poll_table_struct *wait)
-{
- struct lineevent_state *le = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &le->wait, wait);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&le->events, &le->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-
-static ssize_t lineevent_read(struct file *filep,
- char __user *buf,
- size_t count,
- loff_t *f_ps)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpioevent_data ge;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(ge))
- return -EINVAL;
-
- do {
- spin_lock(&le->wait.lock);
- if (kfifo_is_empty(&le->events)) {
- if (bytes_read) {
- spin_unlock(&le->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&le->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(le->wait,
- !kfifo_is_empty(&le->events));
- if (ret) {
- spin_unlock(&le->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&le->events, &ge, 1);
- spin_unlock(&le->wait.lock);
- if (ret != 1) {
- /*
- * This should never happen - we were holding the lock
- * from the moment we learned the fifo is no longer
- * empty until now.
- */
- ret = -EIO;
- break;
- }
-
- if (copy_to_user(buf + bytes_read, &ge, sizeof(ge)))
- return -EFAULT;
- bytes_read += sizeof(ge);
- } while (count >= bytes_read + sizeof(ge));
-
- return bytes_read;
-}
-
-static int lineevent_release(struct inode *inode, struct file *filep)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpio_device *gdev = le->gdev;
-
- free_irq(le->irq, le);
- gpiod_free(le->desc);
- kfree(le->label);
- kfree(le);
- put_device(&gdev->dev);
- return 0;
-}
-
-static long lineevent_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct lineevent_state *le = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
-
- /*
- * We can get the value for an event line but not set it,
- * because it is input by definition.
- */
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- int val;
-
- memset(&ghd, 0, sizeof(ghd));
-
- val = gpiod_get_value_cansleep(le->desc);
- if (val < 0)
- return val;
- ghd.values[0] = val;
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long lineevent_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return lineevent_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static const struct file_operations lineevent_fileops = {
- .release = lineevent_release,
- .read = lineevent_read,
- .poll = lineevent_poll,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = lineevent_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = lineevent_ioctl_compat,
-#endif
-};
-
-static irqreturn_t lineevent_irq_thread(int irq, void *p)
-{
- struct lineevent_state *le = p;
- struct gpioevent_data ge;
- int ret;
-
- /* Do not leak kernel stack to userspace */
- memset(&ge, 0, sizeof(ge));
-
- /*
- * We may be running from a nested threaded interrupt in which case
- * we didn't get the timestamp from lineevent_irq_handler().
- */
- if (!le->timestamp)
- ge.timestamp = ktime_get_ns();
- else
- ge.timestamp = le->timestamp;
-
- if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
- && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- int level = gpiod_get_value_cansleep(le->desc);
- if (level)
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- else
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE) {
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else {
- return IRQ_NONE;
- }
-
- ret = kfifo_in_spinlocked_noirqsave(&le->events, &ge,
- 1, &le->wait.lock);
- if (ret)
- wake_up_poll(&le->wait, EPOLLIN);
- else
- pr_debug_ratelimited("event FIFO is full - event dropped\n");
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t lineevent_irq_handler(int irq, void *p)
-{
- struct lineevent_state *le = p;
-
- /*
- * Just store the timestamp in hardirq context so we get it as
- * close in time as possible to the actual event.
- */
- le->timestamp = ktime_get_ns();
-
- return IRQ_WAKE_THREAD;
-}
-
-static int lineevent_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpioevent_request eventreq;
- struct lineevent_state *le;
- struct gpio_desc *desc;
- struct file *file;
- u32 offset;
- u32 lflags;
- u32 eflags;
- int fd;
- int ret;
- int irqflags = 0;
-
- if (copy_from_user(&eventreq, ip, sizeof(eventreq)))
- return -EFAULT;
-
- offset = eventreq.lineoffset;
- lflags = eventreq.handleflags;
- eflags = eventreq.eventflags;
-
- desc = gpiochip_get_desc(gdev->chip, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- /* Return an error if a unknown flag is set */
- if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) ||
- (eflags & ~GPIOEVENT_REQUEST_VALID_FLAGS))
- return -EINVAL;
-
- /* This is just wrong: we don't look for events on output lines */
- if ((lflags & GPIOHANDLE_REQUEST_OUTPUT) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (lflags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- le = kzalloc(sizeof(*le), GFP_KERNEL);
- if (!le)
- return -ENOMEM;
- le->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- eventreq.consumer_label[sizeof(eventreq.consumer_label)-1] = '\0';
- if (strlen(eventreq.consumer_label)) {
- le->label = kstrdup(eventreq.consumer_label,
- GFP_KERNEL);
- if (!le->label) {
- ret = -ENOMEM;
- goto out_free_le;
- }
- }
-
- ret = gpiod_request(desc, le->label);
- if (ret)
- goto out_free_label;
- le->desc = desc;
- le->eflags = eflags;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_desc;
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- le->irq = gpiod_to_irq(desc);
- if (le->irq <= 0) {
- ret = -ENODEV;
- goto out_free_desc;
- }
-
- if (eflags & GPIOEVENT_REQUEST_RISING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
- if (eflags & GPIOEVENT_REQUEST_FALLING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
- irqflags |= IRQF_ONESHOT;
-
- INIT_KFIFO(le->events);
- init_waitqueue_head(&le->wait);
-
- /* Request a thread to read the events */
- ret = request_threaded_irq(le->irq,
- lineevent_irq_handler,
- lineevent_irq_thread,
- irqflags,
- le->label,
- le);
- if (ret)
- goto out_free_desc;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_irq;
- }
-
- file = anon_inode_getfile("gpio-event",
- &lineevent_fileops,
- le,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- eventreq.fd = fd;
- if (copy_to_user(ip, &eventreq, sizeof(eventreq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_irq:
- free_irq(le->irq, le);
-out_free_desc:
- gpiod_free(le->desc);
-out_free_label:
- kfree(le->label);
-out_free_le:
- kfree(le);
- put_device(&gdev->dev);
- return ret;
-}
-
-static void gpio_desc_to_lineinfo(struct gpio_desc *desc,
- struct gpioline_info *info)
-{
- struct gpio_chip *gc = desc->gdev->chip;
- bool ok_for_pinctrl;
- unsigned long flags;
-
- /*
- * This function takes a mutex so we must check this before taking
- * the spinlock.
- *
- * FIXME: find a non-racy way to retrieve this information. Maybe a
- * lock common to both frameworks?
- */
- ok_for_pinctrl =
- pinctrl_gpio_can_use_line(gc->base + info->line_offset);
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- if (desc->name) {
- strncpy(info->name, desc->name, sizeof(info->name));
- info->name[sizeof(info->name) - 1] = '\0';
- } else {
- info->name[0] = '\0';
- }
-
- if (desc->label) {
- strncpy(info->consumer, desc->label, sizeof(info->consumer));
- info->consumer[sizeof(info->consumer) - 1] = '\0';
- } else {
- info->consumer[0] = '\0';
- }
-
- /*
- * Userspace only need to know that the kernel is using this GPIO so
- * it can't use it.
- */
- info->flags = 0;
- if (test_bit(FLAG_REQUESTED, &desc->flags) ||
- test_bit(FLAG_IS_HOGGED, &desc->flags) ||
- test_bit(FLAG_USED_AS_IRQ, &desc->flags) ||
- test_bit(FLAG_EXPORT, &desc->flags) ||
- test_bit(FLAG_SYSFS, &desc->flags) ||
- !ok_for_pinctrl)
- info->flags |= GPIOLINE_FLAG_KERNEL;
- if (test_bit(FLAG_IS_OUT, &desc->flags))
- info->flags |= GPIOLINE_FLAG_IS_OUT;
- if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
- info->flags |= GPIOLINE_FLAG_ACTIVE_LOW;
- if (test_bit(FLAG_OPEN_DRAIN, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_DRAIN |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_SOURCE |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_BIAS_DISABLE, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_DISABLE;
- if (test_bit(FLAG_PULL_DOWN, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_DOWN;
- if (test_bit(FLAG_PULL_UP, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_UP;
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-}
-
-struct gpio_chardev_data {
- struct gpio_device *gdev;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioline_info_changed, 32);
- struct notifier_block lineinfo_changed_nb;
- unsigned long *watched_lines;
-};
-
-/*
- * gpio_ioctl() - ioctl handler for the GPIO chardev
- */
-static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
- struct gpio_chip *gc = gdev->chip;
- void __user *ip = (void __user *)arg;
- struct gpio_desc *desc;
- __u32 offset;
- int hwgpio;
-
- /* We fail any subsequent ioctl():s when the chip is gone */
- if (!gc)
- return -ENODEV;
-
- /* Fill in the struct and pass to userspace */
- if (cmd == GPIO_GET_CHIPINFO_IOCTL) {
- struct gpiochip_info chipinfo;
-
- memset(&chipinfo, 0, sizeof(chipinfo));
-
- strncpy(chipinfo.name, dev_name(&gdev->dev),
- sizeof(chipinfo.name));
- chipinfo.name[sizeof(chipinfo.name)-1] = '\0';
- strncpy(chipinfo.label, gdev->label,
- sizeof(chipinfo.label));
- chipinfo.label[sizeof(chipinfo.label)-1] = '\0';
- chipinfo.lines = gdev->ngpio;
- if (copy_to_user(ip, &chipinfo, sizeof(chipinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEHANDLE_IOCTL) {
- return linehandle_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEEVENT_IOCTL) {
- return lineevent_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEINFO_WATCH_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
-
- set_bit(hwgpio, priv->watched_lines);
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_UNWATCH_IOCTL) {
- if (copy_from_user(&offset, ip, sizeof(offset)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (!test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- clear_bit(hwgpio, priv->watched_lines);
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long gpio_ioctl_compat(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- return gpio_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static struct gpio_chardev_data *
-to_gpio_chardev_data(struct notifier_block *nb)
-{
- return container_of(nb, struct gpio_chardev_data, lineinfo_changed_nb);
-}
-
-static int lineinfo_changed_notify(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct gpio_chardev_data *priv = to_gpio_chardev_data(nb);
- struct gpioline_info_changed chg;
- struct gpio_desc *desc = data;
- int ret;
-
- if (!test_bit(gpio_chip_hwgpio(desc), priv->watched_lines))
- return NOTIFY_DONE;
-
- memset(&chg, 0, sizeof(chg));
- chg.info.line_offset = gpio_chip_hwgpio(desc);
- chg.event_type = action;
- chg.timestamp = ktime_get_ns();
- gpio_desc_to_lineinfo(desc, &chg.info);
-
- ret = kfifo_in_spinlocked(&priv->events, &chg, 1, &priv->wait.lock);
- if (ret)
- wake_up_poll(&priv->wait, EPOLLIN);
- else
- pr_debug_ratelimited("lineinfo event FIFO is full - event dropped\n");
-
- return NOTIFY_OK;
-}
-
-static __poll_t lineinfo_watch_poll(struct file *filep,
- struct poll_table_struct *pollt)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &priv->wait, pollt);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&priv->events,
- &priv->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-static ssize_t lineinfo_watch_read(struct file *filep, char __user *buf,
- size_t count, loff_t *off)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- struct gpioline_info_changed event;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(event))
- return -EINVAL;
-
- do {
- spin_lock(&priv->wait.lock);
- if (kfifo_is_empty(&priv->events)) {
- if (bytes_read) {
- spin_unlock(&priv->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&priv->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(priv->wait,
- !kfifo_is_empty(&priv->events));
- if (ret) {
- spin_unlock(&priv->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&priv->events, &event, 1);
- spin_unlock(&priv->wait.lock);
- if (ret != 1) {
- ret = -EIO;
- break;
- /* We should never get here. See lineevent_read(). */
- }
-
- if (copy_to_user(buf + bytes_read, &event, sizeof(event)))
- return -EFAULT;
- bytes_read += sizeof(event);
- } while (count >= bytes_read + sizeof(event));
-
- return bytes_read;
-}
-
-/**
- * gpio_chrdev_open() - open the chardev for ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_open(struct inode *inode, struct file *filp)
-{
- struct gpio_device *gdev = container_of(inode->i_cdev,
- struct gpio_device, chrdev);
- struct gpio_chardev_data *priv;
- int ret = -ENOMEM;
-
- /* Fail on open if the backing gpiochip is gone */
- if (!gdev->chip)
- return -ENODEV;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->watched_lines = bitmap_zalloc(gdev->chip->ngpio, GFP_KERNEL);
- if (!priv->watched_lines)
- goto out_free_priv;
-
- init_waitqueue_head(&priv->wait);
- INIT_KFIFO(priv->events);
- priv->gdev = gdev;
-
- priv->lineinfo_changed_nb.notifier_call = lineinfo_changed_notify;
- ret = atomic_notifier_chain_register(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- if (ret)
- goto out_free_bitmap;
-
- get_device(&gdev->dev);
- filp->private_data = priv;
-
- ret = nonseekable_open(inode, filp);
- if (ret)
- goto out_unregister_notifier;
-
- return ret;
-
-out_unregister_notifier:
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
-out_free_bitmap:
- bitmap_free(priv->watched_lines);
-out_free_priv:
- kfree(priv);
- return ret;
-}
-
-/**
- * gpio_chrdev_release() - close chardev after ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_release(struct inode *inode, struct file *filp)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
-
- bitmap_free(priv->watched_lines);
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- put_device(&gdev->dev);
- kfree(priv);
-
- return 0;
-}
-
-static const struct file_operations gpio_fileops = {
- .release = gpio_chrdev_release,
- .open = gpio_chrdev_open,
- .poll = lineinfo_watch_poll,
- .read = lineinfo_watch_read,
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .unlocked_ioctl = gpio_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = gpio_ioctl_compat,
-#endif
-};
-
static void gpiodevice_release(struct device *dev)
{
struct gpio_device *gdev = dev_get_drvdata(dev);
@@@ -436,10 -1539,17 +436,10 @@@ static int gpiochip_setup_dev(struct gp
{
int ret;
- cdev_init(&gdev->chrdev, &gpio_fileops);
- gdev->chrdev.owner = THIS_MODULE;
- gdev->dev.devt = MKDEV(MAJOR(gpio_devt), gdev->id);
-
- ret = cdev_device_add(&gdev->chrdev, &gdev->dev);
+ ret = gpiolib_cdev_register(gdev, gpio_devt);
if (ret)
return ret;
- chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n",
- MAJOR(gpio_devt), gdev->id);
-
ret = gpiochip_sysfs_register(gdev);
if (ret)
goto err_remove_device;
@@@ -452,7 -1562,7 +452,7 @@@
return 0;
err_remove_device:
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
return ret;
}
@@@ -615,7 -1725,7 +615,7 @@@ int gpiochip_add_data_with_key(struct g
spin_unlock_irqrestore(&gpio_lock, flags);
- ATOMIC_INIT_NOTIFIER_HEAD(&gdev->notifier);
+ BLOCKING_INIT_NOTIFIER_HEAD(&gdev->notifier);
#ifdef CONFIG_PINCTRL
INIT_LIST_HEAD(&gdev->pin_ranges);
@@@ -774,7 -1884,7 +774,7 @@@ void gpiochip_remove(struct gpio_chip *
* be removed, else it will be dangling until the last user is
* gone.
*/
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
put_device(&gdev->dev);
}
EXPORT_SYMBOL_GPL(gpiochip_remove);
@@@ -2049,8 -3159,8 +2049,8 @@@ static bool gpiod_free_commit(struct gp
}
spin_unlock_irqrestore(&gpio_lock, flags);
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_RELEASED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_RELEASED, desc);
return ret;
}
@@@ -2595,9 -3705,10 +2595,9 @@@ int gpiod_get_array_value_complex(bool
bitmap_xor(value_bitmap, value_bitmap,
array_info->invert_mask, array_size);
- if (bitmap_full(array_info->get_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->get_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -2878,9 -3989,10 +2878,9 @@@ int gpiod_set_array_value_complex(bool
gpio_chip_set_multiple(array_info->chip, array_info->set_mask,
value_bitmap);
- if (bitmap_full(array_info->set_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->set_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -3927,8 -5039,8 +3927,8 @@@ struct gpio_desc *__must_check gpiod_ge
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -3995,8 -5107,8 +3995,8 @@@ struct gpio_desc *fwnode_get_named_gpio
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -4417,7 -5529,7 +4417,7 @@@ static int gpiolib_open(struct inode *i
static const struct file_operations gpiolib_operations = {
.owner = THIS_MODULE,
.open = gpiolib_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/gpu/drm/arm/malidp_drv.c
index 69fee05c256c,029a26def9f7..c9e18eeddf2e
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@@ -349,11 -349,11 +349,11 @@@ malidp_verify_afbc_framebuffer_size(str
if (objs->size < afbc_size) {
DRM_DEBUG_KMS("buffer size (%zu) too small for AFBC buffer size = %u\n",
objs->size, afbc_size);
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return false;
}
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return true;
}
@@@ -542,7 -542,7 +542,7 @@@ static ssize_t malidp_debugfs_write(str
static const struct file_operations malidp_debugfs_fops = {
.owner = THIS_MODULE,
.open = malidp_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = malidp_debugfs_write,
.llseek = seq_lseek,
.release = single_release,
@@@ -563,7 -563,16 +563,7 @@@ static void malidp_debugfs_init(struct
static struct drm_driver malidp_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
- .gem_free_object_unlocked = drm_gem_cma_free_object,
- .gem_vm_ops = &drm_gem_cma_vm_ops,
- .dumb_create = malidp_dumb_create,
- .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
- .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
- .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
- .gem_prime_vmap = drm_gem_cma_prime_vmap,
- .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
- .gem_prime_mmap = drm_gem_cma_prime_mmap,
+ DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(malidp_dumb_create),
#ifdef CONFIG_DEBUG_FS
.debugfs_init = malidp_debugfs_init,
#endif
@@@ -657,11 -666,20 +657,11 @@@ static ssize_t core_id_show(struct devi
static DEVICE_ATTR_RO(core_id);
-static int malidp_init_sysfs(struct device *dev)
-{
- int ret = device_create_file(dev, &dev_attr_core_id);
-
- if (ret)
- DRM_ERROR("failed to create device file for core_id\n");
-
- return ret;
-}
-
-static void malidp_fini_sysfs(struct device *dev)
-{
- device_remove_file(dev, &dev_attr_core_id);
-}
+static struct attribute *mali_dp_attrs[] = {
+ &dev_attr_core_id.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(mali_dp);
#define MAX_OUTPUT_CHANNELS 3
@@@ -823,6 -841,10 +823,6 @@@ static int malidp_bind(struct device *d
if (ret < 0)
goto query_hw_fail;
- ret = malidp_init_sysfs(dev);
- if (ret)
- goto init_fail;
-
/* Set the CRTC's port so that the encoder component can find it */
malidp->crtc.port = of_graph_get_port_by_id(dev->of_node, 0);
@@@ -848,6 -870,7 +848,6 @@@
drm->irq_enabled = true;
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
- drm_crtc_vblank_reset(&malidp->crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
goto vblank_fail;
@@@ -879,6 -902,8 +879,6 @@@ irq_init_fail
bind_fail:
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
-init_fail:
- malidp_fini_sysfs(dev);
malidp_fini(drm);
query_hw_fail:
pm_runtime_put(dev);
@@@ -904,13 -929,15 +904,13 @@@ static void malidp_unbind(struct devic
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
pm_runtime_get_sync(dev);
- drm_crtc_vblank_off(&malidp->crtc);
+ drm_atomic_helper_shutdown(drm);
malidp_se_irq_fini(hwdev);
malidp_de_irq_fini(hwdev);
drm->irq_enabled = false;
- drm_atomic_helper_shutdown(drm);
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
- malidp_fini_sysfs(dev);
malidp_fini(drm);
pm_runtime_put(dev);
if (pm_runtime_enabled(dev))
@@@ -1006,7 -1033,6 +1006,7 @@@ static struct platform_driver malidp_pl
.name = "mali-dp",
.pm = &malidp_pm_ops,
.of_match_table = malidp_drm_of_match,
+ .dev_groups = mali_dp_groups,
},
};
diff --combined drivers/gpu/drm/drm_debugfs.c
index 3d7182001004,a0a1a598826f..c4b2c861101f
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@@ -154,7 -154,7 +154,7 @@@ static int drm_debugfs_open(struct inod
static const struct file_operations drm_debugfs_fops = {
.owner = THIS_MODULE,
.open = drm_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -311,13 -311,13 +311,13 @@@ static ssize_t connector_write(struct f
buf[len] = '\0';
- if (!strcmp(buf, "on"))
+ if (sysfs_streq(buf, "on"))
connector->force = DRM_FORCE_ON;
- else if (!strcmp(buf, "digital"))
+ else if (sysfs_streq(buf, "digital"))
connector->force = DRM_FORCE_ON_DIGITAL;
- else if (!strcmp(buf, "off"))
+ else if (sysfs_streq(buf, "off"))
connector->force = DRM_FORCE_OFF;
- else if (!strcmp(buf, "unspecified"))
+ else if (sysfs_streq(buf, "unspecified"))
connector->force = DRM_FORCE_UNSPECIFIED;
else
return -EINVAL;
@@@ -376,28 -376,10 +376,28 @@@ static ssize_t edid_write(struct file *
return (ret) ? ret : len;
}
+/*
+ * Returns the min and max vrr vfreq through the connector's debugfs file.
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
+ */
+static int vrr_range_show(struct seq_file *m, void *data)
+{
+ struct drm_connector *connector = m->private;
+
+ if (connector->status != connector_status_connected)
+ return -ENODEV;
+
+ seq_printf(m, "Min: %u\n", (u8)connector->display_info.monitor_range.min_vfreq);
+ seq_printf(m, "Max: %u\n", (u8)connector->display_info.monitor_range.max_vfreq);
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(vrr_range);
+
static const struct file_operations drm_edid_fops = {
.owner = THIS_MODULE,
.open = edid_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = edid_write
@@@ -407,7 -389,7 +407,7 @@@
static const struct file_operations drm_connector_fops = {
.owner = THIS_MODULE,
.open = connector_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = connector_write
@@@ -431,10 -413,6 +431,10 @@@ void drm_debugfs_connector_add(struct d
/* edid */
debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
&drm_edid_fops);
+
+ /* vrr range */
+ debugfs_create_file("vrr_range", S_IRUGO, root, connector,
+ &vrr_range_fops);
}
void drm_debugfs_connector_remove(struct drm_connector *connector)
diff --combined drivers/gpu/drm/drm_mipi_dbi.c
index 79532b9a324a,d0298376d28a..0e55d8716e3d
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@@ -217,7 -217,7 +217,7 @@@ int mipi_dbi_buf_copy(void *dst, struc
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
if (swap)
- drm_fb_swab16(dst, src, fb, clip);
+ drm_fb_swab(dst, src, fb, clip, !import_attach);
else
drm_fb_memcpy(dst, src, fb, clip);
break;
@@@ -268,7 -268,7 +268,7 @@@ static void mipi_dbi_fb_dirty(struct dr
bool full;
void *tr;
- if (!dbidev->enabled)
+ if (WARN_ON(!fb))
return;
if (!drm_dev_enter(fb->dev, &idx))
@@@ -314,9 -314,6 +314,9 @@@ void mipi_dbi_pipe_update(struct drm_si
struct drm_plane_state *state = pipe->plane.state;
struct drm_rect rect;
+ if (!pipe->crtc.state->active)
+ return;
+
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
mipi_dbi_fb_dirty(state->fb, &rect);
}
@@@ -328,8 -325,9 +328,8 @@@ EXPORT_SYMBOL(mipi_dbi_pipe_update)
* @crtc_state: CRTC state
* @plane_state: Plane state
*
- * This function sets &mipi_dbi->enabled, flushes the whole framebuffer and
- * enables the backlight. Drivers can use this in their
- * &drm_simple_display_pipe_funcs->enable callback.
+ * Flushes the whole framebuffer and enables the backlight. Drivers can use this
+ * in their &drm_simple_display_pipe_funcs->enable callback.
*
* Note: Drivers which don't use mipi_dbi_pipe_update() because they have custom
* framebuffer flushing, can't use this function since they both use the same
@@@ -351,6 -349,7 +351,6 @@@ void mipi_dbi_enable_flush(struct mipi_
if (!drm_dev_enter(&dbidev->drm, &idx))
return;
- dbidev->enabled = true;
mipi_dbi_fb_dirty(fb, &rect);
backlight_enable(dbidev->backlight);
@@@ -391,8 -390,13 +391,8 @@@ void mipi_dbi_pipe_disable(struct drm_s
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
- if (!dbidev->enabled)
- return;
-
DRM_DEBUG_KMS("\n");
- dbidev->enabled = false;
-
if (dbidev->backlight)
backlight_disable(dbidev->backlight);
else
@@@ -1275,7 -1279,7 +1275,7 @@@ static int mipi_dbi_debugfs_command_ope
static const struct file_operations mipi_dbi_debugfs_command_fops = {
.owner = THIS_MODULE,
.open = mipi_dbi_debugfs_command_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mipi_dbi_debugfs_command_write,
diff --combined drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 3644752cc5ec,147448e6f750..067f24c47513
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@@ -125,7 -125,7 +125,7 @@@ static int i915_ips_status(struct seq_f
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
seq_printf(m, "Enabled by kernel parameter: %s\n",
- yesno(i915_modparams.enable_ips));
+ yesno(dev_priv->params.enable_ips));
if (INTEL_GEN(dev_priv) >= 8) {
seq_puts(m, "Currently: unknown\n");
@@@ -1009,7 -1009,7 +1009,7 @@@ static ssize_t i915_ipc_status_write(st
static const struct file_operations i915_ipc_status_fops = {
.owner = THIS_MODULE,
.open = i915_ipc_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_ipc_status_write
@@@ -1099,10 -1099,10 +1099,10 @@@ static void drrs_status_per_crtc(struc
seq_puts(m, "\n\t\t");
if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
- vrefresh = panel->fixed_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->fixed_mode);
} else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
- vrefresh = panel->downclock_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->downclock_mode);
} else {
seq_printf(m, "DRRS_State: Unknown(%d)\n",
drrs->refresh_rate_type);
@@@ -1194,7 -1194,7 +1194,7 @@@ static int i915_dp_mst_info(struct seq_
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct intel_encoder *intel_encoder;
- struct intel_digital_port *intel_dig_port;
+ struct intel_digital_port *dig_port;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
@@@ -1207,14 -1207,14 +1207,14 @@@
if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
continue;
- intel_dig_port = enc_to_dig_port(intel_encoder);
- if (!intel_dig_port->dp.can_mst)
+ dig_port = enc_to_dig_port(intel_encoder);
+ if (!dig_port->dp.can_mst)
continue;
seq_printf(m, "MST Source Port [ENCODER:%d:%s]\n",
- intel_dig_port->base.base.base.id,
- intel_dig_port->base.base.name);
- drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ drm_dp_mst_dump_topology(m, &dig_port->dp.mst_mgr);
}
drm_connector_list_iter_end(&conn_iter);
@@@ -1326,7 -1326,7 +1326,7 @@@ static int i915_displayport_test_active
static const struct file_operations i915_displayport_test_active_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_active_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_displayport_test_active_write
@@@ -1627,7 -1627,7 +1627,7 @@@ static ssize_t cur_wm_latency_write(str
static const struct file_operations i915_pri_wm_latency_fops = {
.owner = THIS_MODULE,
.open = pri_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pri_wm_latency_write
@@@ -1636,7 -1636,7 +1636,7 @@@
static const struct file_operations i915_spr_wm_latency_fops = {
.owner = THIS_MODULE,
.open = spr_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = spr_wm_latency_write
@@@ -1645,7 -1645,7 +1645,7 @@@
static const struct file_operations i915_cur_wm_latency_fops = {
.owner = THIS_MODULE,
.open = cur_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = cur_wm_latency_write
@@@ -1728,7 -1728,7 +1728,7 @@@ static int i915_hpd_storm_ctl_open(stru
static const struct file_operations i915_hpd_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_storm_ctl_write
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t i915_hpd_short_storm_ctl
static const struct file_operations i915_hpd_short_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_short_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_short_storm_ctl_write,
@@@ -2179,7 -2179,7 +2179,7 @@@ static int i915_dsc_fec_support_open(st
static const struct file_operations i915_dsc_fec_support_fops = {
.owner = THIS_MODULE,
.open = i915_dsc_fec_support_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_dsc_fec_support_write
@@@ -2218,8 -2218,7 +2218,8 @@@ int intel_connector_debugfs_add(struct
}
if (INTEL_GEN(dev_priv) >= 10 &&
- (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+ ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
+ !to_intel_connector(connector)->mst_port) ||
connector->connector_type == DRM_MODE_CONNECTOR_eDP))
debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
connector, &i915_dsc_fec_support_fops);
diff --combined drivers/gpu/drm/i915/i915_debugfs_params.c
index 4e2b077692cb,58ef14b028ea..19518e805bd6
--- a/drivers/gpu/drm/i915/i915_debugfs_params.c
+++ b/drivers/gpu/drm/i915/i915_debugfs_params.c
@@@ -48,7 -48,7 +48,7 @@@ static ssize_t i915_param_int_write(str
static const struct file_operations i915_param_int_fops = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_int_write,
.llseek = default_llseek,
.release = single_release,
@@@ -57,7 -57,7 +57,7 @@@
static const struct file_operations i915_param_int_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -101,7 -101,7 +101,7 @@@ static ssize_t i915_param_uint_write(st
static const struct file_operations i915_param_uint_fops = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_uint_write,
.llseek = default_llseek,
.release = single_release,
@@@ -110,7 -110,7 +110,7 @@@
static const struct file_operations i915_param_uint_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -138,6 -138,9 +138,6 @@@ static ssize_t i915_param_charp_write(s
char **s = m->private;
char *new, *old;
- /* FIXME: remove locking after params aren't the module params */
- kernel_param_lock(THIS_MODULE);
-
old = *s;
new = strndup_user(ubuf, PAGE_SIZE);
if (IS_ERR(new)) {
@@@ -149,13 -152,15 +149,13 @@@
kfree(old);
out:
- kernel_param_unlock(THIS_MODULE);
-
return len;
}
static const struct file_operations i915_param_charp_fops = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_charp_write,
.llseek = default_llseek,
.release = single_release,
@@@ -164,7 -169,7 +164,7 @@@
static const struct file_operations i915_param_charp_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -224,7 -229,7 +224,7 @@@ _i915_param_create_file(struct dentry *
struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
{
struct drm_minor *minor = i915->drm.primary;
- struct i915_params *params = &i915_modparams;
+ struct i915_params *params = &i915->params;
struct dentry *dir;
dir = debugfs_create_dir("i915_params", minor->debugfs_root);
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 969d95aa873c,2fa8d07979eb..98de42315f21
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@@ -389,7 -389,7 +389,7 @@@ static void dpu_crtc_frame_event_cb(voi
spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags);
if (!fevent) {
- DRM_ERROR("crtc%d event %d overflow\n", crtc->base.id, event);
+ DRM_ERROR_RATELIMITED("crtc%d event %d overflow\n", crtc->base.id, event);
return;
}
@@@ -1256,7 -1256,7 +1256,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -1283,7 -1283,7 +1283,7 @@@ static int _dpu_crtc_init_debugfs(struc
static const struct file_operations debugfs_status_fops = {
.open = _dpu_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 6f1e2b189126,40a7ce44f717..fa6524561dbc
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@@ -208,36 -208,6 +208,36 @@@ struct dpu_encoder_virt
#define to_dpu_encoder_virt(x) container_of(x, struct dpu_encoder_virt, base)
+static u32 dither_matrix[DITHER_MATRIX_SZ] = {
+ 15, 7, 13, 5, 3, 11, 1, 9, 12, 4, 14, 6, 0, 8, 2, 10
+};
+
+static void _dpu_encoder_setup_dither(struct dpu_encoder_phys *phys)
+{
+ struct dpu_hw_dither_cfg dither_cfg = { 0 };
+
+ if (!phys->hw_pp || !phys->hw_pp->ops.setup_dither)
+ return;
+
+ switch (phys->connector->display_info.bpc) {
+ case 6:
+ dither_cfg.c0_bitdepth = 6;
+ dither_cfg.c1_bitdepth = 6;
+ dither_cfg.c2_bitdepth = 6;
+ dither_cfg.c3_bitdepth = 6;
+ dither_cfg.temporal_en = 0;
+ break;
+ default:
+ phys->hw_pp->ops.setup_dither(phys->hw_pp, NULL);
+ return;
+ }
+
+ memcpy(&dither_cfg.matrix, dither_matrix,
+ sizeof(u32) * DITHER_MATRIX_SZ);
+
+ phys->hw_pp->ops.setup_dither(phys->hw_pp, &dither_cfg);
+}
+
void dpu_encoder_helper_report_irq_timeout(struct dpu_encoder_phys *phys_enc,
enum dpu_intr_idx intr_idx)
{
@@@ -529,6 -499,23 +529,6 @@@ void dpu_encoder_helper_split_config
}
}
-static void _dpu_encoder_adjust_mode(struct drm_connector *connector,
- struct drm_display_mode *adj_mode)
-{
- struct drm_display_mode *cur_mode;
-
- if (!connector || !adj_mode)
- return;
-
- list_for_each_entry(cur_mode, &connector->modes, head) {
- if (cur_mode->vdisplay == adj_mode->vdisplay &&
- cur_mode->hdisplay == adj_mode->hdisplay &&
- drm_mode_vrefresh(cur_mode) == drm_mode_vrefresh(adj_mode)) {
- adj_mode->private_flags |= cur_mode->private_flags;
- }
- }
-}
-
static struct msm_display_topology dpu_encoder_get_topology(
struct dpu_encoder_virt *dpu_enc,
struct dpu_kms *dpu_kms,
@@@ -602,6 -589,15 +602,6 @@@ static int dpu_encoder_virt_atomic_chec
global_state = dpu_kms_get_existing_global_state(dpu_kms);
trace_dpu_enc_atomic_check(DRMID(drm_enc));
- /*
- * display drivers may populate private fields of the drm display mode
- * structure while registering possible modes of a connector with DRM.
- * These private fields are not populated back while DRM invokes
- * the mode_set callbacks. This module retrieves and populates the
- * private fields of the given mode.
- */
- _dpu_encoder_adjust_mode(conn_state->connector, adj_mode);
-
/* perform atomic check on the first physical encoder (master) */
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
@@@ -634,7 -630,8 +634,7 @@@
}
}
- trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags,
- adj_mode->private_flags);
+ trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags);
return ret;
}
@@@ -1089,7 -1086,6 +1089,7 @@@ static void _dpu_encoder_virt_enable_he
struct dpu_encoder_virt *dpu_enc = NULL;
struct msm_drm_private *priv;
struct dpu_kms *dpu_kms;
+ int i;
if (!drm_enc || !drm_enc->dev) {
DPU_ERROR("invalid parameters\n");
@@@ -1112,14 -1108,6 +1112,14 @@@
dpu_kms->catalog);
_dpu_encoder_update_vsync_source(dpu_enc, &dpu_enc->disp_info);
+
+ if (dpu_enc->disp_info.intf_type == DRM_MODE_ENCODER_DSI) {
+ for (i = 0; i < dpu_enc->num_phys_encs; i++) {
+ struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
+
+ _dpu_encoder_setup_dither(phys);
+ }
+ }
}
void dpu_encoder_virt_runtime_resume(struct drm_encoder *drm_enc)
@@@ -1897,7 -1885,7 +1897,7 @@@ static int _dpu_encoder_init_debugfs(st
static const struct file_operations debugfs_status_fops = {
.open = _dpu_encoder_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index f2bbce42c760,282424a27262..d4ee35225ca6
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@@ -10,7 -10,6 +10,7 @@@
#include <linux/debugfs.h>
#include <linux/dma-buf.h>
#include <linux/of_irq.h>
+#include <linux/pm_opp.h>
#include <drm/drm_crtc.h>
#include <drm/drm_file.h>
@@@ -108,7 -107,7 +108,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -177,7 -176,7 +177,7 @@@ static int dpu_debugfs_open_regset32(st
static const struct file_operations dpu_fops_regset32 = {
.open = dpu_debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1026,24 -1025,11 +1026,24 @@@ static int dpu_bind(struct device *dev
if (!dpu_kms)
return -ENOMEM;
+ dpu_kms->opp_table = dev_pm_opp_set_clkname(dev, "core");
+ if (IS_ERR(dpu_kms->opp_table))
+ return PTR_ERR(dpu_kms->opp_table);
+ /* OPP table is optional */
+ ret = dev_pm_opp_of_add_table(dev);
+ if (!ret) {
+ dpu_kms->has_opp_table = true;
+ } else if (ret != -ENODEV) {
+ dev_err(dev, "invalid OPP table in device tree\n");
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
+ return ret;
+ }
+
mp = &dpu_kms->mp;
ret = msm_dss_parse_clock(pdev, mp);
if (ret) {
DPU_ERROR("failed to parse clocks, ret=%d\n", ret);
- return ret;
+ goto err;
}
platform_set_drvdata(pdev, dpu_kms);
@@@ -1057,11 -1043,6 +1057,11 @@@
priv->kms = &dpu_kms->base;
return ret;
+err:
+ if (dpu_kms->has_opp_table)
+ dev_pm_opp_of_remove_table(dev);
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
+ return ret;
}
static void dpu_unbind(struct device *dev, struct device *master, void *data)
@@@ -1076,10 -1057,6 +1076,10 @@@
if (dpu_kms->rpm_enabled)
pm_runtime_disable(&pdev->dev);
+
+ if (dpu_kms->has_opp_table)
+ dev_pm_opp_of_remove_table(dev);
+ dev_pm_opp_put_clkname(dpu_kms->opp_table);
}
static const struct component_ops dpu_ops = {
@@@ -1105,8 -1082,6 +1105,8 @@@ static int __maybe_unused dpu_runtime_s
struct dpu_kms *dpu_kms = platform_get_drvdata(pdev);
struct dss_module_power *mp = &dpu_kms->mp;
+ /* Drop the performance state vote */
+ dev_pm_opp_set_rate(dev, 0);
rc = msm_dss_enable_clk(mp->clk_config, mp->num_clk, false);
if (rc)
DPU_ERROR("clock disable failed rc:%d\n", rc);
@@@ -1140,8 -1115,6 +1140,8 @@@ static int __maybe_unused dpu_runtime_r
static const struct dev_pm_ops dpu_pm_ops = {
SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
static const struct of_device_id dpu_dt_match[] = {
diff --combined drivers/hwmon/dell-smm-hwmon.c
index ec448f5f2dc3,29ac38842962..976acbbe8ce9
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@@ -597,7 -597,7 +597,7 @@@ static int i8k_open_fs(struct inode *in
static const struct proc_ops i8k_proc_ops = {
.proc_open = i8k_open_fs,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_ioctl = i8k_ioctl,
@@@ -1187,14 -1187,6 +1187,14 @@@ static struct dmi_system_id i8k_whiteli
},
.driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
},
+ {
+ .ident = "Dell Latitude 5480",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 5480"),
+ },
+ .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
+ },
{
.ident = "Dell Latitude E6440",
.matches = {
diff --combined drivers/md/md.c
index bc06f046d9e7,0bae6c1523ce..5b6d46741baa
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@@ -199,7 -199,7 +199,7 @@@ static int rdevs_init_serial(struct mdd
static int rdev_need_serial(struct md_rdev *rdev)
{
return (rdev && rdev->mddev->bitmap_info.max_write_behind > 0 &&
- rdev->bdev->bd_queue->nr_hw_queues != 1 &&
+ rdev->bdev->bd_disk->queue->nr_hw_queues != 1 &&
test_bit(WriteMostly, &rdev->flags));
}
@@@ -463,46 -463,24 +463,46 @@@ check_suspended
}
EXPORT_SYMBOL(md_handle_request);
-static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
+struct md_io {
+ struct mddev *mddev;
+ bio_end_io_t *orig_bi_end_io;
+ void *orig_bi_private;
+ unsigned long start_time;
+};
+
+static void md_end_io(struct bio *bio)
+{
+ struct md_io *md_io = bio->bi_private;
+ struct mddev *mddev = md_io->mddev;
+
+ disk_end_io_acct(mddev->gendisk, bio_op(bio), md_io->start_time);
+
+ bio->bi_end_io = md_io->orig_bi_end_io;
+ bio->bi_private = md_io->orig_bi_private;
+
+ mempool_free(md_io, &mddev->md_io_pool);
+
+ if (bio->bi_end_io)
+ bio->bi_end_io(bio);
+}
+
+static blk_qc_t md_submit_bio(struct bio *bio)
{
const int rw = bio_data_dir(bio);
- const int sgrp = op_stat_group(bio_op(bio));
struct mddev *mddev = bio->bi_disk->private_data;
- unsigned int sectors;
- if (unlikely(test_bit(MD_BROKEN, &mddev->flags)) && (rw == WRITE)) {
+ if (mddev == NULL || mddev->pers == NULL) {
bio_io_error(bio);
return BLK_QC_T_NONE;
}
- blk_queue_split(q, &bio);
-
- if (mddev == NULL || mddev->pers == NULL) {
+ if (unlikely(test_bit(MD_BROKEN, &mddev->flags)) && (rw == WRITE)) {
bio_io_error(bio);
return BLK_QC_T_NONE;
}
+
+ blk_queue_split(&bio);
+
if (mddev->ro == 1 && unlikely(rw == WRITE)) {
if (bio_sectors(bio) != 0)
bio->bi_status = BLK_STS_IOERR;
@@@ -510,27 -488,21 +510,27 @@@
return BLK_QC_T_NONE;
}
- /*
- * save the sectors now since our bio can
- * go away inside make_request
- */
- sectors = bio_sectors(bio);
+ if (bio->bi_end_io != md_end_io) {
+ struct md_io *md_io;
+
+ md_io = mempool_alloc(&mddev->md_io_pool, GFP_NOIO);
+ md_io->mddev = mddev;
+ md_io->orig_bi_end_io = bio->bi_end_io;
+ md_io->orig_bi_private = bio->bi_private;
+
+ bio->bi_end_io = md_end_io;
+ bio->bi_private = md_io;
+
+ md_io->start_time = disk_start_io_acct(mddev->gendisk,
+ bio_sectors(bio),
+ bio_op(bio));
+ }
+
/* bio could be mergeable after passing to underlayer */
bio->bi_opf &= ~REQ_NOMERGE;
md_handle_request(mddev, bio);
- part_stat_lock();
- part_stat_inc(&mddev->gendisk->part0, ios[sgrp]);
- part_stat_add(&mddev->gendisk->part0, sectors[sgrp], sectors);
- part_stat_unlock();
-
return BLK_QC_T_NONE;
}
@@@ -577,6 -549,26 +577,6 @@@ void mddev_resume(struct mddev *mddev
}
EXPORT_SYMBOL_GPL(mddev_resume);
-int mddev_congested(struct mddev *mddev, int bits)
-{
- struct md_personality *pers = mddev->pers;
- int ret = 0;
-
- rcu_read_lock();
- if (mddev->suspended)
- ret = 1;
- else if (pers && pers->congested)
- ret = pers->congested(mddev, bits);
- rcu_read_unlock();
- return ret;
-}
-EXPORT_SYMBOL_GPL(mddev_congested);
-static int md_congested(void *data, int bits)
-{
- struct mddev *mddev = data;
- return mddev_congested(mddev, bits);
-}
-
/*
* Generic flush handling for md
*/
@@@ -2452,10 -2444,6 +2452,10 @@@ static int bind_rdev_to_array(struct md
if (sysfs_create_link(&rdev->kobj, ko, "block"))
/* failure here is OK */;
rdev->sysfs_state = sysfs_get_dirent_safe(rdev->kobj.sd, "state");
+ rdev->sysfs_unack_badblocks =
+ sysfs_get_dirent_safe(rdev->kobj.sd, "unacknowledged_bad_blocks");
+ rdev->sysfs_badblocks =
+ sysfs_get_dirent_safe(rdev->kobj.sd, "bad_blocks");
list_add_rcu(&rdev->same_set, &mddev->disks);
bd_link_disk_holder(rdev->bdev, mddev->gendisk);
@@@ -2489,11 -2477,7 +2489,11 @@@ static void unbind_rdev_from_array(stru
rdev->mddev = NULL;
sysfs_remove_link(&rdev->kobj, "block");
sysfs_put(rdev->sysfs_state);
+ sysfs_put(rdev->sysfs_unack_badblocks);
+ sysfs_put(rdev->sysfs_badblocks);
rdev->sysfs_state = NULL;
+ rdev->sysfs_unack_badblocks = NULL;
+ rdev->sysfs_badblocks = NULL;
rdev->badblocks.count = 0;
/* We need to delay this, otherwise we can deadlock when
* writing to 'remove' to "dev/state". We also need
@@@ -2838,7 -2822,7 +2838,7 @@@ rewrite
goto repeat;
wake_up(&mddev->sb_wait);
if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
rdev_for_each(rdev, mddev) {
if (test_and_clear_bit(FaultRecorded, &rdev->flags))
@@@ -4091,7 -4075,7 +4091,7 @@@ level_store(struct mddev *mddev, const
mddev_resume(mddev);
if (!mddev->thread)
md_update_sb(mddev, 1);
- sysfs_notify(&mddev->kobj, NULL, "level");
+ sysfs_notify_dirent_safe(mddev->sysfs_level);
md_new_event(mddev);
rv = len;
out_unlock:
@@@ -4844,7 -4828,7 +4844,7 @@@ action_store(struct mddev *mddev, cons
}
if (err)
return err;
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
} else {
if (cmd_match(page, "check"))
set_bit(MD_RECOVERY_CHECK, &mddev->recovery);
@@@ -5550,13 -5534,6 +5550,13 @@@ static void md_free(struct kobject *ko
if (mddev->sysfs_state)
sysfs_put(mddev->sysfs_state);
+ if (mddev->sysfs_completed)
+ sysfs_put(mddev->sysfs_completed);
+ if (mddev->sysfs_degraded)
+ sysfs_put(mddev->sysfs_degraded);
+ if (mddev->sysfs_level)
+ sysfs_put(mddev->sysfs_level);
+
if (mddev->gendisk)
del_gendisk(mddev->gendisk);
@@@ -5568,7 -5545,6 +5568,7 @@@
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
+ mempool_exit(&mddev->md_io_pool);
kfree(mddev);
}
@@@ -5664,13 -5640,8 +5664,13 @@@ static int md_alloc(dev_t dev, char *na
*/
mddev->hold_active = UNTIL_STOP;
+ error = mempool_init_kmalloc_pool(&mddev->md_io_pool, BIO_POOL_SIZE,
+ sizeof(struct md_io));
+ if (error)
+ goto abort;
+
error = -ENOMEM;
- mddev->queue = blk_alloc_queue(md_make_request, NUMA_NO_NODE);
+ mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!mddev->queue)
goto abort;
@@@ -5699,7 -5670,6 +5699,7 @@@
* remove it now.
*/
disk->flags |= GENHD_FL_EXT_DEVT;
+ disk->events |= DISK_EVENT_MEDIA_CHANGE;
mddev->gendisk = disk;
/* As soon as we call add_disk(), another thread could get
* through to md_open, so make sure it doesn't get too far
@@@ -5725,9 -5695,6 +5725,9 @@@
if (!error && mddev->kobj.sd) {
kobject_uevent(&mddev->kobj, KOBJ_ADD);
mddev->sysfs_state = sysfs_get_dirent_safe(mddev->kobj.sd, "array_state");
+ mddev->sysfs_completed = sysfs_get_dirent_safe(mddev->kobj.sd, "sync_completed");
+ mddev->sysfs_degraded = sysfs_get_dirent_safe(mddev->kobj.sd, "degraded");
+ mddev->sysfs_level = sysfs_get_dirent_safe(mddev->kobj.sd, "level");
}
mddev_put(mddev);
return error;
@@@ -5997,6 -5964,8 +5997,6 @@@ int md_run(struct mddev *mddev
blk_queue_flag_set(QUEUE_FLAG_NONROT, mddev->queue);
else
blk_queue_flag_clear(QUEUE_FLAG_NONROT, mddev->queue);
- mddev->queue->backing_dev_info->congested_data = mddev;
- mddev->queue->backing_dev_info->congested_fn = md_congested;
}
if (pers->sync_request) {
if (mddev->kobj.sd &&
@@@ -6080,7 -6049,7 +6080,7 @@@ static int do_md_run(struct mddev *mdde
kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE);
sysfs_notify_dirent_safe(mddev->sysfs_state);
sysfs_notify_dirent_safe(mddev->sysfs_action);
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
out:
clear_bit(MD_NOT_READY, &mddev->flags);
return err;
@@@ -6381,6 -6350,7 +6381,6 @@@ static int do_md_stop(struct mddev *mdd
__md_stop_writes(mddev);
__md_stop(mddev);
- mddev->queue->backing_dev_info->congested_fn = NULL;
/* tell userspace to handle 'inactive' */
sysfs_notify_dirent_safe(mddev->sysfs_state);
@@@ -7836,21 -7806,23 +7836,21 @@@ static void md_release(struct gendisk *
mddev_put(mddev);
}
-static int md_media_changed(struct gendisk *disk)
-{
- struct mddev *mddev = disk->private_data;
-
- return mddev->changed;
-}
-
-static int md_revalidate(struct gendisk *disk)
+static unsigned int md_check_events(struct gendisk *disk, unsigned int clearing)
{
struct mddev *mddev = disk->private_data;
+ unsigned int ret = 0;
+ if (mddev->changed)
+ ret = DISK_EVENT_MEDIA_CHANGE;
mddev->changed = 0;
- return 0;
+ return ret;
}
+
static const struct block_device_operations md_fops =
{
.owner = THIS_MODULE,
+ .submit_bio = md_submit_bio,
.open = md_open,
.release = md_release,
.ioctl = md_ioctl,
@@@ -7858,7 -7830,8 +7858,7 @@@
.compat_ioctl = md_compat_ioctl,
#endif
.getgeo = md_getgeo,
- .media_changed = md_media_changed,
- .revalidate_disk= md_revalidate,
+ .check_events = md_check_events,
};
static int md_thread(void *arg)
@@@ -8328,7 -8301,7 +8328,7 @@@ static __poll_t mdstat_poll(struct fil
static const struct proc_ops mdstat_proc_ops = {
.proc_open = md_seq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = mdstat_poll,
@@@ -8794,7 -8767,7 +8794,7 @@@ void md_do_sync(struct md_thread *threa
} else
mddev->curr_resync = 3; /* no longer delayed */
mddev->curr_resync_completed = j;
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
md_new_event(mddev);
update_time = jiffies;
@@@ -8822,7 -8795,7 +8822,7 @@@
mddev->recovery_cp = j;
update_time = jiffies;
set_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags);
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
}
while (j >= mddev->resync_max &&
@@@ -8929,7 -8902,7 +8929,7 @@@
!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
mddev->curr_resync > 3) {
mddev->curr_resync_completed = mddev->curr_resync;
- sysfs_notify(&mddev->kobj, NULL, "sync_completed");
+ sysfs_notify_dirent_safe(mddev->sysfs_completed);
}
mddev->pers->sync_request(mddev, max_sectors, &skipped);
@@@ -9059,7 -9032,7 +9059,7 @@@ static int remove_and_add_spares(struc
}
if (removed && mddev->kobj.sd)
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
if (this && removed)
goto no_add;
@@@ -9342,7 -9315,8 +9342,7 @@@ void md_reap_sync_thread(struct mddev *
/* success...*/
/* activate any spares */
if (mddev->pers->spare_active(mddev)) {
- sysfs_notify(&mddev->kobj, NULL,
- "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
}
}
@@@ -9432,7 -9406,8 +9432,7 @@@ int rdev_set_badblocks(struct md_rdev *
if (rv == 0) {
/* Make sure they get written out promptly */
if (test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify(&rdev->kobj, NULL,
- "unacknowledged_bad_blocks");
+ sysfs_notify_dirent_safe(rdev->sysfs_unack_badblocks);
sysfs_notify_dirent_safe(rdev->sysfs_state);
set_mask_bits(&mddev->sb_flags, 0,
BIT(MD_SB_CHANGE_CLEAN) | BIT(MD_SB_CHANGE_PENDING));
@@@ -9453,7 -9428,7 +9453,7 @@@ int rdev_clear_badblocks(struct md_rde
s += rdev->data_offset;
rv = badblocks_clear(&rdev->badblocks, s, sectors);
if ((rv == 0) && test_bit(ExternalBbl, &rdev->flags))
- sysfs_notify(&rdev->kobj, NULL, "bad_blocks");
+ sysfs_notify_dirent_safe(rdev->sysfs_badblocks);
return rv;
}
EXPORT_SYMBOL_GPL(rdev_clear_badblocks);
@@@ -9683,7 -9658,7 +9683,7 @@@ static int read_rdev(struct mddev *mdde
if (rdev->recovery_offset == MaxSector &&
!test_bit(In_sync, &rdev->flags) &&
mddev->pers->spare_active(mddev))
- sysfs_notify(&mddev->kobj, NULL, "degraded");
+ sysfs_notify_dirent_safe(mddev->sysfs_degraded);
put_page(swapout);
return 0;
diff --combined drivers/media/cec/core/cec-core.c
index c599cd94dd62,87e856788e0b..6edb1e09f9fa
--- a/drivers/media/cec/core/cec-core.c
+++ b/drivers/media/cec/core/cec-core.c
@@@ -226,7 -226,7 +226,7 @@@ static int cec_error_inj_open(struct in
static const struct file_operations cec_error_inj_fops = {
.open = cec_error_inj_open,
.write = cec_error_inj_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -265,6 -265,7 +265,6 @@@ struct cec_adapter *cec_allocate_adapte
adap->sequence = 0;
adap->ops = ops;
adap->priv = priv;
- memset(adap->phys_addrs, 0xff, sizeof(adap->phys_addrs));
mutex_init(&adap->lock);
INIT_LIST_HEAD(&adap->transmit_queue);
INIT_LIST_HEAD(&adap->wait_queue);
diff --combined drivers/memory/tegra/tegra124-emc.c
index ba5cb1f4dfc2,794431b2102c..a98de2c943d1
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@@ -984,7 -984,6 +984,7 @@@ static int tegra_emc_load_timings_from_
static const struct of_device_id tegra_emc_of_match[] = {
{ .compatible = "nvidia,tegra124-emc" },
+ { .compatible = "nvidia,tegra132-emc" },
{}
};
@@@ -1069,7 -1068,7 +1069,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1179,11 -1178,11 +1179,11 @@@ static void emc_debugfs_init(struct dev
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root, emc,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc,
&tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
diff --combined drivers/memory/tegra/tegra186-emc.c
index 8478f59db432,1445ab51af6a..1d0a12164fe7
--- a/drivers/memory/tegra/tegra186-emc.c
+++ b/drivers/memory/tegra/tegra186-emc.c
@@@ -94,7 -94,7 +94,7 @@@ static int tegra186_emc_debug_available
static const struct file_operations tegra186_emc_debug_available_rates_fops = {
.open = tegra186_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -185,7 -185,7 +185,7 @@@ static int tegra186_emc_probe(struct pl
if (IS_ERR(emc->clk)) {
err = PTR_ERR(emc->clk);
dev_err(&pdev->dev, "failed to get EMC clock: %d\n", err);
- return err;
+ goto put_bpmp;
}
platform_set_drvdata(pdev, emc);
@@@ -201,7 -201,7 +201,7 @@@
err = tegra_bpmp_transfer(emc->bpmp, &msg);
if (err < 0) {
dev_err(&pdev->dev, "failed to EMC DVFS pairs: %d\n", err);
- return err;
+ goto put_bpmp;
}
emc->debugfs.min_rate = ULONG_MAX;
@@@ -211,10 -211,8 +211,10 @@@
emc->dvfs = devm_kmalloc_array(&pdev->dev, emc->num_dvfs,
sizeof(*emc->dvfs), GFP_KERNEL);
- if (!emc->dvfs)
- return -ENOMEM;
+ if (!emc->dvfs) {
+ err = -ENOMEM;
+ goto put_bpmp;
+ }
dev_dbg(&pdev->dev, "%u DVFS pairs:\n", emc->num_dvfs);
@@@ -239,10 -237,15 +239,10 @@@
"failed to set rate range [%lu-%lu] for %pC\n",
emc->debugfs.min_rate, emc->debugfs.max_rate,
emc->clk);
- return err;
+ goto put_bpmp;
}
emc->debugfs.root = debugfs_create_dir("emc", NULL);
- if (!emc->debugfs.root) {
- dev_err(&pdev->dev, "failed to create debugfs directory\n");
- return 0;
- }
-
debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
emc, &tegra186_emc_debug_available_rates_fops);
debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
@@@ -251,10 -254,6 +251,10 @@@
emc, &tegra186_emc_debug_max_rate_fops);
return 0;
+
+put_bpmp:
+ tegra_bpmp_put(emc->bpmp);
+ return err;
}
static int tegra186_emc_remove(struct platform_device *pdev)
@@@ -268,10 -267,10 +268,10 @@@
}
static const struct of_device_id tegra186_emc_of_match[] = {
-#if defined(CONFIG_ARCH_TEGRA186_SOC)
+#if defined(CONFIG_ARCH_TEGRA_186_SOC)
{ .compatible = "nvidia,tegra186-emc" },
#endif
-#if defined(CONFIG_ARCH_TEGRA194_SOC)
+#if defined(CONFIG_ARCH_TEGRA_194_SOC)
{ .compatible = "nvidia,tegra194-emc" },
#endif
{ /* sentinel */ }
diff --combined drivers/memory/tegra/tegra20-emc.c
index 027f46287dbf,c63b14f7b356..83ca46345aba
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@@ -7,11 -7,11 +7,11 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
@@@ -144,6 -144,7 +144,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -161,13 -162,17 +161,13 @@@
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
if (!status)
return IRQ_NONE;
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT)
- complete(&emc->clk_handshake_complete);
-
/* notify about HW problem */
if (status & EMC_REFRESH_OVERFLOW_INT)
dev_err_ratelimited(emc->dev,
@@@ -219,13 -224,14 +219,13 @@@ static int emc_prepare_timing_change(st
/* wait until programming has settled */
readl_relaxed(emc->regs + emc_timing_registers[i - 1]);
- reinit_completion(&emc->clk_handshake_complete);
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc, bool flush)
{
- unsigned long timeout;
+ int err;
+ u32 v;
dev_dbg(emc->dev, "%s: flush %d\n", __func__, flush);
@@@ -236,12 -242,11 +236,12 @@@
return 0;
}
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "EMC-CAR handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
return 0;
@@@ -407,7 -412,7 +407,7 @@@ tegra_emc_find_node_by_ram_code(struct
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 emc_cfg, emc_dbg;
emc_cfg = readl_relaxed(emc->regs + EMC_CFG_2);
@@@ -541,7 -546,7 +541,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -642,11 -647,11 +642,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -681,6 -686,7 +681,6 @@@ static int tegra_emc_probe(struct platf
return -ENOMEM;
}
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = tegra_emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/memory/tegra/tegra30-emc.c
index 055af0e08a2e,2ed027408af2..e448a55cb812
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@@ -11,6 -11,7 +11,6 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/err.h>
@@@ -326,6 -327,7 +326,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
struct tegra_mc *mc;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -372,10 -374,52 +372,10 @@@ static int emc_seq_update_timing(struc
return 0;
}
-static void emc_complete_clk_change(struct tegra_emc *emc)
-{
- struct emc_timing *timing = emc->new_timing;
- unsigned int dram_num;
- bool failed = false;
- int err;
-
- /* re-enable auto-refresh */
- dram_num = tegra_mc_get_emem_device_count(emc->mc);
- writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
- emc->regs + EMC_REFCTRL);
-
- /* restore auto-calibration */
- if (emc->vref_cal_toggle)
- writel_relaxed(timing->emc_auto_cal_interval,
- emc->regs + EMC_AUTO_CAL_INTERVAL);
-
- /* restore dynamic self-refresh */
- if (timing->emc_cfg_dyn_self_ref) {
- emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
- writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
- }
-
- /* set number of clocks to wait after each ZQ command */
- if (emc->zcal_long)
- writel_relaxed(timing->emc_zcal_cnt_long,
- emc->regs + EMC_ZCAL_WAIT_CNT);
-
- /* wait for writes to settle */
- udelay(2);
-
- /* update restored timing */
- err = emc_seq_update_timing(emc);
- if (err)
- failed = true;
-
- /* restore early ACK */
- mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
-
- WRITE_ONCE(emc->bad_state, failed);
-}
-
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
@@@ -390,6 -434,18 +390,6 @@@
/* clear interrupts */
writel_relaxed(status, emc->regs + EMC_INTSTATUS);
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT) {
- if (completion_done(&emc->clk_handshake_complete)) {
- dev_err_ratelimited(emc->dev,
- "bogus handshake interrupt\n");
- return IRQ_NONE;
- }
-
- emc_complete_clk_change(emc);
- complete(&emc->clk_handshake_complete);
- }
-
return IRQ_HANDLED;
}
@@@ -745,58 -801,29 +745,58 @@@ static int emc_prepare_timing_change(st
*/
mc_readl(emc->mc, MC_EMEM_ARB_OVERRIDE);
- reinit_completion(&emc->clk_handshake_complete);
-
- emc->new_timing = timing;
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc,
unsigned long rate)
{
- unsigned long timeout;
+ struct emc_timing *timing = emc_find_timing(emc, rate);
+ unsigned int dram_num;
+ int err;
+ u32 v;
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "emc-car handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
- if (READ_ONCE(emc->bad_state))
- return -EIO;
+ /* re-enable auto-refresh */
+ dram_num = tegra_mc_get_emem_device_count(emc->mc);
+ writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
+ emc->regs + EMC_REFCTRL);
+
+ /* restore auto-calibration */
+ if (emc->vref_cal_toggle)
+ writel_relaxed(timing->emc_auto_cal_interval,
+ emc->regs + EMC_AUTO_CAL_INTERVAL);
- return 0;
+ /* restore dynamic self-refresh */
+ if (timing->emc_cfg_dyn_self_ref) {
+ emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
+ writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
+ }
+
+ /* set number of clocks to wait after each ZQ command */
+ if (emc->zcal_long)
+ writel_relaxed(timing->emc_zcal_cnt_long,
+ emc->regs + EMC_ZCAL_WAIT_CNT);
+
+ /* wait for writes to settle */
+ udelay(2);
+
+ /* update restored timing */
+ err = emc_seq_update_timing(emc);
+ if (!err)
+ emc->bad_state = false;
+
+ /* restore early ACK */
+ mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
+
+ return err;
}
static int emc_unprepare_timing_change(struct tegra_emc *emc,
@@@ -1006,7 -1033,7 +1006,7 @@@ static struct device_node *emc_find_nod
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 fbio_cfg5, emc_cfg, emc_dbg;
enum emc_dram_type dram_type;
@@@ -1147,7 -1174,7 +1147,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1248,11 -1275,11 +1248,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -1294,6 -1321,7 +1294,6 @@@ static int tegra_emc_probe(struct platf
if (!emc->mc)
return -EPROBE_DEFER;
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/mfd/ab3100-core.c
index ee71ae04b5e6,0f461180d29f..092c78b5e26f
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@@ -473,7 -473,7 +473,7 @@@ static int ab3100_registers_open(struc
static const struct file_operations ab3100_registers_fops = {
.open = ab3100_registers_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -498,7 -498,7 +498,7 @@@ static ssize_t ab3100_get_set_reg(struc
int i = 0;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((ssize_t)count, (ssize_t)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
diff --combined drivers/mfd/ab3100-otp.c
index c393102e3a39,3667fa4c9fed..3c1157e7a0c1
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@@ -29,22 -29,22 +29,22 @@@
/**
* struct ab3100_otp
- * @dev containing device
- * @locked whether the OTP is locked, after locking, no more bits
+ * @dev: containing device
+ * @locked: whether the OTP is locked, after locking, no more bits
* can be changed but before locking it is still possible
* to change bits from 1->0.
- * @freq clocking frequency for the OTP, this frequency is either
+ * @freq: clocking frequency for the OTP, this frequency is either
* 32768Hz or 1MHz/30
- * @paf product activation flag, indicates whether this is a real
+ * @paf: product activation flag, indicates whether this is a real
* product (paf true) or a lab board etc (paf false)
- * @imeich if this is set it is possible to override the
+ * @imeich: if this is set it is possible to override the
* IMEI number found in the tac, fac and svn fields with
* (secured) software
- * @cid customer ID
- * @tac type allocation code of the IMEI
- * @fac final assembly code of the IMEI
- * @svn software version number of the IMEI
- * @debugfs a debugfs file used when dumping to file
+ * @cid: customer ID
+ * @tac: type allocation code of the IMEI
+ * @fac: final assembly code of the IMEI
+ * @svn: software version number of the IMEI
+ * @debugfs: a debugfs file used when dumping to file
*/
struct ab3100_otp {
struct device *dev;
@@@ -117,7 -117,7 +117,7 @@@ static int ab3100_otp_open(struct inod
static const struct file_operations ab3100_otp_operations = {
.open = ab3100_otp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/mfd/ab8500-debugfs.c
index 6d1bf7c3ca3b,fcdb618fe2db..838798c98d0f
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@@ -1376,7 -1376,7 +1376,7 @@@ static int ab8500_all_banks_open(struc
static const struct file_operations ab8500_all_banks_fops = {
.open = ab8500_all_banks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t ab8500_hwreg_write(struc
int buf_size, ret;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((int)count, (int)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
@@@ -1959,7 -1959,7 +1959,7 @@@ static ssize_t ab8500_unsubscribe_write
static const struct file_operations ab8500_bank_fops = {
.open = ab8500_bank_open,
.write = ab8500_bank_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1968,7 -1968,7 +1968,7 @@@
static const struct file_operations ab8500_address_fops = {
.open = ab8500_address_open,
.write = ab8500_address_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1977,7 -1977,7 +1977,7 @@@
static const struct file_operations ab8500_val_fops = {
.open = ab8500_val_open,
.write = ab8500_val_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1986,7 -1986,7 +1986,7 @@@
static const struct file_operations ab8500_subscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_subscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1995,7 -1995,7 +1995,7 @@@
static const struct file_operations ab8500_unsubscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_unsubscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -2004,7 -2004,7 +2004,7 @@@
static const struct file_operations ab8500_hwreg_fops = {
.open = ab8500_hwreg_open,
.write = ab8500_hwreg_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
diff --combined drivers/mfd/tps65010.c
index 7e7dbee58ca9,19ed0a372389..31259867f637
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@@ -290,7 -290,7 +290,7 @@@ static int dbg_tps_open(struct inode *i
static const struct file_operations debug_fops = {
.open = dbg_tps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -404,6 -404,7 +404,6 @@@ static void tps65010_work(struct work_s
tps65010_interrupt(tps);
if (test_and_clear_bit(FLAG_VBUS_CHANGED, &tps->flags)) {
- int status;
u8 chgconfig, tmp;
chgconfig = i2c_smbus_read_byte_data(tps->client,
@@@ -414,8 -415,8 +414,8 @@@
else if (tps->vbus >= 100)
chgconfig |= TPS_VBUS_CHARGING;
- status = i2c_smbus_write_byte_data(tps->client,
- TPS_CHGCONFIG, chgconfig);
+ i2c_smbus_write_byte_data(tps->client,
+ TPS_CHGCONFIG, chgconfig);
/* vbus update fails unless VBUS is connected! */
tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
diff --combined drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 05f33b7e3677,3891fb39a889..424026da73cc
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@@ -229,7 -229,7 +229,7 @@@ static int cim_la_open(struct inode *in
static const struct file_operations cim_la_fops = {
.owner = THIS_MODULE,
.open = cim_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -272,7 -272,7 +272,7 @@@ static int cim_pif_la_open(struct inod
static const struct file_operations cim_pif_la_fops = {
.owner = THIS_MODULE,
.open = cim_pif_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -318,7 -318,7 +318,7 @@@ static int cim_ma_la_open(struct inode
static const struct file_operations cim_ma_la_fops = {
.owner = THIS_MODULE,
.open = cim_ma_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -411,7 -411,7 +411,7 @@@ static int cim_ibq_open(struct inode *i
static const struct file_operations cim_ibq_fops = {
.owner = THIS_MODULE,
.open = cim_ibq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -440,7 -440,7 +440,7 @@@ static int cim_obq_open(struct inode *i
static const struct file_operations cim_obq_fops = {
.owner = THIS_MODULE,
.open = cim_obq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -686,7 -686,7 +686,7 @@@ static ssize_t tp_la_write(struct file
static const struct file_operations tp_la_fops = {
.owner = THIS_MODULE,
.open = tp_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
.write = tp_la_write
@@@ -722,7 -722,7 +722,7 @@@ static int ulprx_la_open(struct inode *
static const struct file_operations ulprx_la_fops = {
.owner = THIS_MODULE,
.open = ulprx_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -812,7 -812,7 +812,7 @@@ static ssize_t pm_stats_clear(struct fi
static const struct file_operations pm_stats_debugfs_fops = {
.owner = THIS_MODULE,
.open = pm_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pm_stats_clear
@@@ -1136,7 -1136,7 +1136,7 @@@ static int devlog_open(struct inode *in
static const struct file_operations devlog_fops = {
.owner = THIS_MODULE,
.open = devlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -1234,7 -1234,7 +1234,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -1317,7 -1317,7 +1317,7 @@@ static ssize_t mbox_write(struct file *
static const struct file_operations mbox_debugfs_fops = {
.owner = THIS_MODULE,
.open = mbox_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mbox_write
@@@ -1610,7 -1610,7 +1610,7 @@@ out
static const struct file_operations mps_trc_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_trc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mps_trc_write
@@@ -1930,7 -1930,7 +1930,7 @@@ static int mps_tcam_open(struct inode *
static const struct file_operations mps_tcam_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_tcam_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2007,7 -2007,7 +2007,7 @@@ static int rss_open(struct inode *inode
static const struct file_operations rss_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2226,7 -2226,7 +2226,7 @@@ static ssize_t rss_key_write(struct fil
static const struct file_operations rss_key_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_key_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = rss_key_write
@@@ -2310,7 -2310,7 +2310,7 @@@ static int rss_pf_config_open(struct in
static const struct file_operations rss_pf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_pf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2373,7 -2373,7 +2373,7 @@@ static int rss_vf_config_open(struct in
static const struct file_operations rss_vf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_vf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2561,7 -2561,7 +2561,7 @@@ static int dcb_info_open(struct inode *
static const struct file_operations dcb_info_debugfs_fops = {
.owner = THIS_MODULE,
.open = dcb_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2742,58 -2742,6 +2742,58 @@@ do {
}
r -= eth_entries;
+ for_each_port(adap, j) {
+ struct port_info *pi = adap2pinfo(adap, j);
+ const struct sge_eth_rxq *rx;
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (!pi->vi_mirror_count) {
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ if (r >= DIV_ROUND_UP(pi->nmirrorqsets, 4)) {
+ r -= DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ rx = &s->mirror_rxq[j][r * 4];
+ n = min(4, pi->nmirrorqsets - 4 * r);
+
+ S("QType:", "Mirror-Rxq");
+ S("Interface:",
+ rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
+ R("RspQ ID:", rspq.abs_id);
+ R("RspQ size:", rspq.size);
+ R("RspQE size:", rspq.iqe_len);
+ R("RspQ CIDX:", rspq.cidx);
+ R("RspQ Gen:", rspq.gen);
+ S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
+ S3("u", "Intr pktcnt:", s->counter_val[rx[i].rspq.pktcnt_idx]);
+ R("FL ID:", fl.cntxt_id);
+ R("FL size:", fl.size - 8);
+ R("FL pend:", fl.pend_cred);
+ R("FL avail:", fl.avail);
+ R("FL PIDX:", fl.pidx);
+ R("FL CIDX:", fl.cidx);
+ RL("RxPackets:", stats.pkts);
+ RL("RxCSO:", stats.rx_cso);
+ RL("VLANxtract:", stats.vlan_ex);
+ RL("LROmerged:", stats.lro_merged);
+ RL("LROpackets:", stats.lro_pkts);
+ RL("RxDrops:", stats.rx_drops);
+ RL("RxBadPkts:", stats.bad_rx_pkts);
+ RL("FLAllocErr:", fl.alloc_failed);
+ RL("FLLrgAlcErr:", fl.large_alloc_failed);
+ RL("FLMapErr:", fl.mapping_err);
+ RL("FLLow:", fl.low);
+ RL("FLStarving:", fl.starving);
+
+ mutex_unlock(&pi->vi_mirror_mutex);
+ goto out;
+ }
+
if (!adap->tc_mqprio)
goto skip_mqprio;
@@@ -3150,10 -3098,9 +3150,10 @@@ unlock
return 0;
}
-static int sge_queue_entries(const struct adapter *adap)
+static int sge_queue_entries(struct adapter *adap)
{
int i, tot_uld_entries = 0, eohw_entries = 0, eosw_entries = 0;
+ int mirror_rxq_entries = 0;
if (adap->tc_mqprio) {
struct cxgb4_tc_port_mqprio *port_mqprio;
@@@ -3176,15 -3123,6 +3176,15 @@@
mutex_unlock(&adap->tc_mqprio->mqprio_mutex);
}
+ for_each_port(adap, i) {
+ struct port_info *pi = adap2pinfo(adap, i);
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (pi->vi_mirror_count)
+ mirror_rxq_entries += DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ }
+
if (!is_uld(adap))
goto lld_only;
@@@ -3199,7 -3137,7 +3199,7 @@@
mutex_unlock(&uld_mutex);
lld_only:
- return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
+ return DIV_ROUND_UP(adap->sge.ethqsets, 4) + mirror_rxq_entries +
eohw_entries + eosw_entries + tot_uld_entries +
DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
}
@@@ -3245,7 -3183,7 +3245,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index dbe8ee7e0e21,20e74d5e837f..6983e3d55e22
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@@ -2039,7 -2039,7 +2039,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2192,7 -2192,7 +2192,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2338,7 -2338,7 +2338,7 @@@ static int sge_qstats_open(struct inod
static const struct file_operations sge_qstats_proc_fops = {
.owner = THIS_MODULE,
.open = sge_qstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2436,7 -2436,7 +2436,7 @@@ static int interfaces_open(struct inod
static const struct file_operations interfaces_proc_fops = {
.owner = THIS_MODULE,
.open = interfaces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2916,39 -2916,6 +2916,39 @@@ static const struct net_device_ops cxgb
#endif
};
+/**
+ * cxgb4vf_get_port_mask - Get port mask for the VF based on mac
+ * address stored on the adapter
+ * @adapter: The adapter
+ *
+ * Find the the port mask for the VF based on the index of mac
+ * address stored in the adapter. If no mac address is stored on
+ * the adapter for the VF, use the port mask received from the
+ * firmware.
+ */
+static unsigned int cxgb4vf_get_port_mask(struct adapter *adapter)
+{
+ unsigned int naddr = 1, pidx = 0;
+ unsigned int pmask, rmask = 0;
+ u8 mac[ETH_ALEN];
+ int err;
+
+ pmask = adapter->params.vfres.pmask;
+ while (pmask) {
+ if (pmask & 1) {
+ err = t4vf_get_vf_mac_acl(adapter, pidx, &naddr, mac);
+ if (!err && !is_zero_ether_addr(mac))
+ rmask |= (1 << pidx);
+ }
+ pmask >>= 1;
+ pidx++;
+ }
+ if (!rmask)
+ rmask = adapter->params.vfres.pmask;
+
+ return rmask;
+}
+
/*
* "Probe" a device: initialize a device and construct all kernel and driver
* state needed to manage the device. This routine is called "init_one" in
@@@ -2957,12 -2924,13 +2957,12 @@@
static int cxgb4vf_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- int pci_using_dac;
- int err, pidx;
- unsigned int pmask;
struct adapter *adapter;
- struct port_info *pi;
struct net_device *netdev;
- unsigned int pf;
+ struct port_info *pi;
+ unsigned int pmask;
+ int pci_using_dac;
+ int err, pidx;
/*
* Initialize generic PCI device state.
@@@ -3105,7 -3073,8 +3105,7 @@@
/*
* Allocate our "adapter ports" and stitch everything together.
*/
- pmask = adapter->params.vfres.pmask;
- pf = t4vf_get_pf_from_vf(adapter);
+ pmask = cxgb4vf_get_port_mask(adapter);
for_each_port(adapter, pidx) {
int port_id, viid;
u8 mac[ETH_ALEN];
@@@ -3188,7 -3157,7 +3188,7 @@@
goto err_free_dev;
}
- err = t4vf_get_vf_mac_acl(adapter, pf, &naddr, mac);
+ err = t4vf_get_vf_mac_acl(adapter, port_id, &naddr, mac);
if (err) {
dev_err(&pdev->dev,
"unable to determine MAC ACL address, "
diff --combined drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
index 56d9927fbfda,bc99fe0aabf0..f80f94e1e10a
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
@@@ -21,7 -21,7 +21,7 @@@ static int dpaa2_dbg_cpu_show(struct se
seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
"CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
- "Tx SG", "Tx realloc", "Enq busy");
+ "Tx SG", "Tx converted to SG", "Enq busy");
for_each_online_cpu(i) {
stats = per_cpu_ptr(priv->percpu_stats, i);
@@@ -35,7 -35,7 +35,7 @@@
stats->tx_errors,
extras->tx_conf_frames,
extras->tx_sg_frames,
- extras->tx_reallocs,
+ extras->tx_converted_sg_frames,
extras->tx_portal_busy);
}
@@@ -56,7 -56,7 +56,7 @@@ static int dpaa2_dbg_cpu_open(struct in
static const struct file_operations dpaa2_dbg_cpu_ops = {
.open = dpaa2_dbg_cpu_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -90,10 -90,6 +90,10 @@@ static int dpaa2_dbg_fqs_show(struct se
if (err)
fcnt = 0;
+ /* Skip FQs with no traffic */
+ if (!fq->stats.frames && !fcnt)
+ continue;
+
seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",
fq->fqid,
fq->target_cpu,
@@@ -120,7 -116,7 +120,7 @@@ static int dpaa2_dbg_fqs_open(struct in
static const struct file_operations dpaa2_dbg_fq_ops = {
.open = dpaa2_dbg_fqs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -165,7 -161,7 +165,7 @@@ static int dpaa2_dbg_ch_open(struct ino
static const struct file_operations dpaa2_dbg_ch_ops = {
.open = dpaa2_dbg_ch_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
index 267ad4eddb5c,cf3b7ec4db73..a3a1691e5ed9
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
@@@ -260,7 -260,7 +260,7 @@@ struct hcmd_write_data
__be32 cmd_id;
__be32 flags;
__be16 length;
- u8 data[0];
+ u8 data[];
} __packed;
static ssize_t iwl_dbgfs_send_hcmd_write(struct iwl_fw_runtime *fwrt, char *buf,
@@@ -419,7 -419,7 +419,7 @@@ static int iwl_dbgfs_fw_info_open(struc
static const struct file_operations iwl_dbgfs_fw_info_ops = {
.owner = THIS_MODULE,
.open = iwl_dbgfs_fw_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
diff --combined drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
index d06afcf46d67,c61bd9803078..e356d9ec5957
--- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
@@@ -181,7 -181,7 +181,7 @@@ mt7615_ampdu_stat_open(struct inode *in
static const struct file_operations fops_ampdu_stat = {
.open = mt7615_ampdu_stat_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -234,11 -234,10 +234,11 @@@ mt7615_queues_acq(struct seq_file *s, v
int i;
for (i = 0; i < 16; i++) {
- int j, acs = i / 4, index = i % 4;
+ int j, wmm_idx = i % MT7615_MAX_WMM_SETS;
+ int acs = i / MT7615_MAX_WMM_SETS;
u32 ctrl, val, qlen = 0;
- val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
+ val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, wmm_idx));
ctrl = BIT(31) | BIT(15) | (acs << 8);
for (j = 0; j < 32; j++) {
@@@ -246,11 -245,11 +246,11 @@@
continue;
mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
- ctrl | (j + (index << 5)));
+ ctrl | (j + (wmm_idx << 5)));
qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
GENMASK(11, 0));
}
- seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
+ seq_printf(s, "AC%d%d: queued=%d\n", wmm_idx, acs, qlen);
}
return 0;
diff --combined drivers/net/xen-netback/xenbus.c
index 7e62a6ee7622,06b253eba25d..aad7e526eb5f
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@@ -152,7 -152,7 +152,7 @@@ static int xenvif_io_ring_open(struct i
static const struct file_operations xenvif_dbg_io_ring_ops_fops = {
.owner = THIS_MODULE,
.open = xenvif_io_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = xenvif_write_io_ring,
@@@ -393,24 -393,6 +393,24 @@@ static void set_backend_state(struct ba
}
}
+static void read_xenbus_frontend_xdp(struct backend_info *be,
+ struct xenbus_device *dev)
+{
+ struct xenvif *vif = be->vif;
+ u16 headroom;
+ int err;
+
+ err = xenbus_scanf(XBT_NIL, dev->otherend,
+ "xdp-headroom", "%hu", &headroom);
+ if (err != 1) {
+ vif->xdp_headroom = 0;
+ return;
+ }
+ if (headroom > XEN_NETIF_MAX_XDP_HEADROOM)
+ headroom = XEN_NETIF_MAX_XDP_HEADROOM;
+ vif->xdp_headroom = headroom;
+}
+
/**
* Callback received when the frontend's state changes.
*/
@@@ -435,11 -417,6 +435,11 @@@ static void frontend_changed(struct xen
set_backend_state(be, XenbusStateConnected);
break;
+ case XenbusStateReconfiguring:
+ read_xenbus_frontend_xdp(be, dev);
+ xenbus_switch_state(dev, XenbusStateReconfigured);
+ break;
+
case XenbusStateClosing:
set_backend_state(be, XenbusStateClosing);
break;
@@@ -970,8 -947,6 +970,8 @@@ static int read_xenbus_vif_flags(struc
vif->ipv6_csum = !!xenbus_read_unsigned(dev->otherend,
"feature-ipv6-csum-offload", 0);
+ read_xenbus_frontend_xdp(be, dev);
+
return 0;
}
@@@ -1061,15 -1036,6 +1061,15 @@@ static int netback_probe(struct xenbus_
goto abort_transaction;
}
+ /* we can adjust a headroom for netfront XDP processing */
+ err = xenbus_printf(xbt, dev->nodename,
+ "feature-xdp-headroom", "%d",
+ provides_xdp_headroom);
+ if (err) {
+ message = "writing feature-xdp-headroom";
+ goto abort_transaction;
+ }
+
/* We don't support rx-flip path (except old guests who
* don't grok this feature flag).
*/
diff --combined drivers/pci/controller/pci-tegra.c
index 71bf4b2684ac,bfb8dbc2d0ea..66386f742bd7
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@@ -1462,7 -1462,7 +1462,7 @@@ static int tegra_pcie_get_resources(str
{
struct device *dev = pcie->dev;
struct platform_device *pdev = to_platform_device(dev);
- struct resource *pads, *afi, *res;
+ struct resource *res;
const struct tegra_pcie_soc *soc = pcie->soc;
int err;
@@@ -1486,13 -1486,15 +1486,13 @@@
}
}
- pads = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pads");
- pcie->pads = devm_ioremap_resource(dev, pads);
+ pcie->pads = devm_platform_ioremap_resource_byname(pdev, "pads");
if (IS_ERR(pcie->pads)) {
err = PTR_ERR(pcie->pads);
goto phys_put;
}
- afi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "afi");
- pcie->afi = devm_ioremap_resource(dev, afi);
+ pcie->afi = devm_platform_ioremap_resource_byname(pdev, "afi");
if (IS_ERR(pcie->afi)) {
err = PTR_ERR(pcie->afi);
goto phys_put;
@@@ -2632,7 -2634,7 +2632,7 @@@ static int tegra_pcie_ports_open(struc
static const struct file_operations tegra_pcie_ports_ops = {
.owner = THIS_MODULE,
.open = tegra_pcie_ports_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2668,6 -2670,7 +2668,6 @@@ static int tegra_pcie_probe(struct plat
struct device *dev = &pdev->dev;
struct pci_host_bridge *host;
struct tegra_pcie *pcie;
- struct pci_bus *child;
struct resource *bus;
int err;
@@@ -2718,12 -2721,20 +2718,12 @@@
host->map_irq = tegra_pcie_map_irq;
host->swizzle_irq = pci_common_swizzle;
- err = pci_scan_root_bus_bridge(host);
+ err = pci_host_probe(host);
if (err < 0) {
dev_err(dev, "failed to register host: %d\n", err);
goto pm_runtime_put;
}
- pci_bus_size_bridges(host->bus);
- pci_bus_assign_resources(host->bus);
-
- list_for_each_entry(child, &host->bus->children, node)
- pcie_bus_configure_settings(child);
-
- pci_bus_add_devices(host->bus);
-
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_pcie_debugfs_init(pcie);
if (err < 0)
diff --combined drivers/platform/x86/asus-wmi.c
index 8f4acdc06b13,9efa854fff13..13f7d1bf076b
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@@ -441,7 -441,6 +441,7 @@@ static int asus_wmi_battery_add(struct
* battery is named BATT.
*/
if (strcmp(battery->desc->name, "BAT0") != 0 &&
+ strcmp(battery->desc->name, "BAT1") != 0 &&
strcmp(battery->desc->name, "BATT") != 0)
return -ENODEV;
@@@ -2503,7 -2502,7 +2503,7 @@@ static int asus_wmi_debugfs_open(struc
static const struct file_operations asus_wmi_debugfs_io_ops = {
.owner = THIS_MODULE,
.open = asus_wmi_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/platform/x86/intel_pmc_core.c
index 338ea5222555,4941349004f6..e0bee021d044
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@@ -415,7 -415,7 +415,7 @@@ static const struct pmc_bit_map tgl_lpm
{"PCIe_Gen3PLL_OFF_STS", BIT(20)},
{"OPIOPLL_OFF_STS", BIT(21)},
{"OCPLL_OFF_STS", BIT(22)},
- {"AudioPLL_OFF_STS", BIT(23)},
+ {"MainPLL_OFF_STS", BIT(23)},
{"MIPIPLL_OFF_STS", BIT(24)},
{"Fast_XTAL_Osc_OFF_STS", BIT(25)},
{"AC_Ring_Osc_OFF_STS", BIT(26)},
@@@ -795,7 -795,7 +795,7 @@@ static int pmc_core_mphy_pg_show(struc
msleep(10);
val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
- for (index = 0; map[index].name && index < 8; index++) {
+ for (index = 0; index < 8 && map[index].name; index++) {
seq_printf(s, "%-32s\tState: %s\n",
map[index].name,
map[index].bit_mask & val_low ? "Not power gated" :
@@@ -894,7 -894,7 +894,7 @@@ static int pmc_core_ltr_ignore_open(str
static const struct file_operations pmc_core_ltr_ignore_ops = {
.open = pmc_core_ltr_ignore_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = pmc_core_ltr_ignore_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined drivers/platform/x86/thinkpad_acpi.c
index edae2db27984,f571d6254e7c..00264903db4a
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@@ -885,19 -885,11 +885,19 @@@ static ssize_t dispatch_proc_write(stru
if (!ibm || !ibm->write)
return -EINVAL;
+ if (count > PAGE_SIZE - 1)
+ return -EINVAL;
+
+ kernbuf = kmalloc(count + 1, GFP_KERNEL);
+ if (!kernbuf)
+ return -ENOMEM;
- kernbuf = strndup_user(userbuf, PAGE_SIZE);
- if (IS_ERR(kernbuf))
- return PTR_ERR(kernbuf);
+ if (copy_from_user(kernbuf, userbuf, count)) {
+ kfree(kernbuf);
+ return -EFAULT;
+ }
+ kernbuf[count] = 0;
ret = ibm->write(kernbuf);
if (ret == 0)
ret = count;
@@@ -909,7 -901,7 +909,7 @@@
static const struct proc_ops dispatch_proc_ops = {
.proc_open = dispatch_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = dispatch_proc_write,
@@@ -4030,8 -4022,8 +4030,8 @@@ static bool hotkey_notify_6xxx(const u3
return true;
case TP_HKEY_EV_THM_CSM_COMPLETED:
pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n");
- /* recommended action: do nothing, we don't have
- * Lenovo ATM information */
+ /* Thermal event - pass on to event handler */
+ tpacpi_driver_event(hkey);
return true;
case TP_HKEY_EV_THM_TRANSFM_CHANGED:
pr_debug("EC reports: Thermal Transformation changed (GMTS)\n");
@@@ -6963,13 -6955,10 +6963,13 @@@ static int __init brightness_init(struc
pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n");
return 1;
}
- } else if (tp_features.bright_acpimode && brightness_enable > 1) {
- pr_notice("Standard ACPI backlight interface not available, thinkpad_acpi native brightness control enabled\n");
+ } else if (!tp_features.bright_acpimode) {
+ pr_notice("ACPI backlight interface not available\n");
+ return 1;
}
+ pr_notice("ACPI native brightness control enabled\n");
+
/*
* Check for module parameter bogosity, note that we
* init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
@@@ -7968,7 -7957,7 +7968,7 @@@ static struct ibm_struct volume_driver_
* does so, its initial value is meaningless (0x07).
*
* For firmware bugs, refer to:
- * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
+ * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
@@@ -7993,7 -7982,7 +7993,7 @@@
* mode.
*
* For firmware bugs, refer to:
- * http://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
+ * https://thinkwiki.org/wiki/Embedded_Controller_Firmware#Firmware_Issues
*
* ----
*
@@@ -9806,105 -9795,6 +9806,105 @@@ static struct ibm_struct lcdshadow_driv
.write = lcdshadow_write,
};
+/*************************************************************************
+ * DYTC subdriver, for the Lenovo lapmode feature
+ */
+
+#define DYTC_CMD_GET 2 /* To get current IC function and mode */
+#define DYTC_GET_LAPMODE_BIT 17 /* Set when in lapmode */
+
+static bool dytc_lapmode;
+
+static void dytc_lapmode_notify_change(void)
+{
+ sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "dytc_lapmode");
+}
+
+static int dytc_command(int command, int *output)
+{
+ acpi_handle dytc_handle;
+
+ if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DYTC", &dytc_handle))) {
+ /* Platform doesn't support DYTC */
+ return -ENODEV;
+ }
+ if (!acpi_evalf(dytc_handle, output, NULL, "dd", command))
+ return -EIO;
+ return 0;
+}
+
+static int dytc_lapmode_get(bool *state)
+{
+ int output, err;
+
+ err = dytc_command(DYTC_CMD_GET, &output);
+ if (err)
+ return err;
+ *state = output & BIT(DYTC_GET_LAPMODE_BIT) ? true : false;
+ return 0;
+}
+
+static void dytc_lapmode_refresh(void)
+{
+ bool new_state;
+ int err;
+
+ err = dytc_lapmode_get(&new_state);
+ if (err || (new_state == dytc_lapmode))
+ return;
+
+ dytc_lapmode = new_state;
+ dytc_lapmode_notify_change();
+}
+
+/* sysfs lapmode entry */
+static ssize_t dytc_lapmode_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", dytc_lapmode);
+}
+
+static DEVICE_ATTR_RO(dytc_lapmode);
+
+static struct attribute *dytc_attributes[] = {
+ &dev_attr_dytc_lapmode.attr,
+ NULL,
+};
+
+static const struct attribute_group dytc_attr_group = {
+ .attrs = dytc_attributes,
+};
+
+static int tpacpi_dytc_init(struct ibm_init_struct *iibm)
+{
+ int err;
+
+ err = dytc_lapmode_get(&dytc_lapmode);
+ /* If support isn't available (ENODEV) then don't return an error
+ * but just don't create the sysfs group
+ */
+ if (err == -ENODEV)
+ return 0;
+ /* For all other errors we can flag the failure */
+ if (err)
+ return err;
+
+ /* Platform supports this feature - create the group */
+ err = sysfs_create_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group);
+ return err;
+}
+
+static void dytc_exit(void)
+{
+ sysfs_remove_group(&tpacpi_pdev->dev.kobj, &dytc_attr_group);
+}
+
+static struct ibm_struct dytc_driver_data = {
+ .name = "dytc",
+ .exit = dytc_exit,
+};
+
/****************************************************************************
****************************************************************************
*
@@@ -9952,10 -9842,6 +9952,10 @@@ static void tpacpi_driver_event(const u
mutex_unlock(&kbdlight_mutex);
}
+
+ if (hkey_event == TP_HKEY_EV_THM_CSM_COMPLETED)
+ dytc_lapmode_refresh();
+
}
static void hotkey_driver_event(const unsigned int scancode)
@@@ -10208,7 -10094,7 +10208,7 @@@ static int __must_check __init get_thin
* X32 or newer, all Z series; Some models must have an
* up-to-date BIOS or they will not be detected.
*
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See https://thinkwiki.org/wiki/List_of_DMI_IDs
*/
while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
if (sscanf(dev->name,
@@@ -10394,10 -10280,6 +10394,10 @@@ static struct ibm_init_struct ibms_init
.init = tpacpi_lcdshadow_init,
.data = &lcdshadow_driver_data,
},
+ {
+ .init = tpacpi_dytc_init,
+ .data = &dytc_driver_data,
+ },
};
static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
@@@ -10731,8 -10613,8 +10731,8 @@@ MODULE_DEVICE_TABLE(acpi, ibm_htk_devic
/*
* DMI matching for module autoloading
*
- * See http://thinkwiki.org/wiki/List_of_DMI_IDs
- * See http://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
+ * See https://thinkwiki.org/wiki/List_of_DMI_IDs
+ * See https://thinkwiki.org/wiki/BIOS_Upgrade_Downloads
*
* Only models listed in thinkwiki will be supported, so add yours
* if it is not there yet.
diff --combined drivers/pwm/core.c
index 276e939a5684,ad39b0bb0b03..a7037136d49f
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@@ -510,12 -510,12 +510,12 @@@ static void pwm_apply_state_debug(struc
last->period > s2.period &&
last->period <= state->period)
dev_warn(chip->dev,
- ".apply didn't pick the best available period (requested: %u, applied: %u, possible: %u)\n",
+ ".apply didn't pick the best available period (requested: %llu, applied: %llu, possible: %llu)\n",
state->period, s2.period, last->period);
if (state->enabled && state->period < s2.period)
dev_warn(chip->dev,
- ".apply is supposed to round down period (requested: %u, applied: %u)\n",
+ ".apply is supposed to round down period (requested: %llu, applied: %llu)\n",
state->period, s2.period);
if (state->enabled &&
@@@ -524,14 -524,14 +524,14 @@@
last->duty_cycle > s2.duty_cycle &&
last->duty_cycle <= state->duty_cycle)
dev_warn(chip->dev,
- ".apply didn't pick the best available duty cycle (requested: %u/%u, applied: %u/%u, possible: %u/%u)\n",
+ ".apply didn't pick the best available duty cycle (requested: %llu/%llu, applied: %llu/%llu, possible: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period,
last->duty_cycle, last->period);
if (state->enabled && state->duty_cycle < s2.duty_cycle)
dev_warn(chip->dev,
- ".apply is supposed to round down duty_cycle (requested: %u/%u, applied: %u/%u)\n",
+ ".apply is supposed to round down duty_cycle (requested: %llu/%llu, applied: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period);
@@@ -558,7 -558,7 +558,7 @@@
(s1.enabled && s1.period != last->period) ||
(s1.enabled && s1.duty_cycle != last->duty_cycle)) {
dev_err(chip->dev,
- ".apply is not idempotent (ena=%d pol=%d %u/%u) -> (ena=%d pol=%d %u/%u)\n",
+ ".apply is not idempotent (ena=%d pol=%d %llu/%llu) -> (ena=%d pol=%d %llu/%llu)\n",
s1.enabled, s1.polarity, s1.duty_cycle, s1.period,
last->enabled, last->polarity, last->duty_cycle,
last->period);
@@@ -1284,8 -1284,8 +1284,8 @@@ static void pwm_dbg_show(struct pwm_chi
if (state.enabled)
seq_puts(s, " enabled");
- seq_printf(s, " period: %u ns", state.period);
- seq_printf(s, " duty: %u ns", state.duty_cycle);
+ seq_printf(s, " period: %llu ns", state.period);
+ seq_printf(s, " duty: %llu ns", state.duty_cycle);
seq_printf(s, " polarity: %s",
state.polarity ? "inverse" : "normal");
@@@ -1342,7 -1342,7 +1342,7 @@@ static int pwm_seq_open(struct inode *i
static const struct file_operations pwm_debugfs_ops = {
.owner = THIS_MODULE,
.open = pwm_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/s390/block/dasd.c
index eb17fea8075c,17a9a35e9aed..20f256e6d38b
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@@ -1089,7 -1089,7 +1089,7 @@@ static int dasd_stats_open(struct inod
static const struct file_operations dasd_stats_raw_fops = {
.owner = THIS_MODULE,
.open = dasd_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = dasd_stats_write,
@@@ -2802,7 -2802,7 +2802,7 @@@ static void __dasd_cleanup_cqr(struct d
blk_update_request(req, BLK_STS_OK,
blk_rq_bytes(req) - proc_bytes);
blk_mq_requeue_request(req, true);
- } else {
+ } else if (likely(!blk_should_fake_timeout(req->q))) {
blk_mq_complete_request(req);
}
}
diff --combined drivers/soc/qcom/socinfo.c
index e19102f46302,ab2a56c75f13..d9c64a78e49c
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@@ -24,7 -24,6 +24,7 @@@
#define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
#define SMEM_SOCINFO_BUILD_ID_LENGTH 32
+#define SMEM_SOCINFO_CHIP_ID_LENGTH 32
/*
* SMEM item id, used to acquire handles to respective
@@@ -122,16 -121,6 +122,16 @@@ struct socinfo
__le32 chip_family;
__le32 raw_device_family;
__le32 raw_device_num;
+ /* Version 13 */
+ __le32 nproduct_id;
+ char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
+ /* Version 14 */
+ __le32 num_clusters;
+ __le32 ncluster_array_offset;
+ __le32 num_defective_parts;
+ __le32 ndefective_parts_array_offset;
+ /* Version 15 */
+ __le32 nmodem_supported;
};
#ifdef CONFIG_DEBUG_FS
@@@ -146,12 -135,6 +146,12 @@@ struct socinfo_params
u32 raw_ver;
u32 hw_plat;
u32 fmt;
+ u32 nproduct_id;
+ u32 num_clusters;
+ u32 ncluster_array_offset;
+ u32 num_defective_parts;
+ u32 ndefective_parts_array_offset;
+ u32 nmodem_supported;
};
struct smem_image_version {
@@@ -219,10 -202,8 +219,10 @@@ static const struct soc_id soc_id[] =
{ 310, "MSM8996AU" },
{ 311, "APQ8096AU" },
{ 312, "APQ8096SG" },
+ { 318, "SDM630" },
{ 321, "SDM845" },
{ 341, "SDA845" },
+ { 356, "SM8250" },
};
static const char *socinfo_machine(struct device *dev, unsigned int id)
@@@ -247,7 -228,7 +247,7 @@@ static int qcom_open_##name(struct inod
\
static const struct file_operations qcom_ ##name## _ops = { \
.open = qcom_open_##name, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -275,10 -256,7 +275,10 @@@ static int qcom_show_pmic_model(struct
if (model < 0)
return -EINVAL;
- seq_printf(seq, "%s\n", pmic_models[model]);
+ if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
+ seq_printf(seq, "%s\n", pmic_models[model]);
+ else
+ seq_printf(seq, "unknown (%d)\n", model);
return 0;
}
@@@ -294,19 -272,9 +294,19 @@@ static int qcom_show_pmic_die_revision(
return 0;
}
+static int qcom_show_chip_id(struct seq_file *seq, void *p)
+{
+ struct socinfo *socinfo = seq->private;
+
+ seq_printf(seq, "%s\n", socinfo->chip_id);
+
+ return 0;
+}
+
QCOM_OPEN(build_id, qcom_show_build_id);
QCOM_OPEN(pmic_model, qcom_show_pmic_model);
QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
+QCOM_OPEN(chip_id, qcom_show_chip_id);
#define DEFINE_IMAGE_OPS(type) \
static int show_image_##type(struct seq_file *seq, void *p) \
@@@ -323,7 -291,7 +323,7 @@@ static int open_image_##type(struct ino
\
static const struct file_operations qcom_image_##type##_ops = { \
.open = open_image_##type, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -344,38 -312,7 +344,38 @@@ static void socinfo_debugfs_init(struc
qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
+ debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.fmt);
+
switch (qcom_socinfo->info.fmt) {
+ case SOCINFO_VERSION(0, 15):
+ qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
+
+ debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nmodem_supported);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 14):
+ qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
+ qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
+ qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
+ qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
+
+ debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_clusters);
+ debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ncluster_array_offset);
+ debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_defective_parts);
+ debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ndefective_parts_array_offset);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 13):
+ qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
+
+ debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nproduct_id);
+ DEBUGFS_ADD(info, chip_id);
+ /* Fall through */
case SOCINFO_VERSION(0, 12):
qcom_socinfo->info.chip_family =
__le32_to_cpu(info->chip_family);
diff --combined drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index c52540b734fd,e198779db6fc..a47d32a2166f
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@@ -9,6 -9,22 +9,6 @@@
* <jkmaline(a)cc.hut.fi>
* Copyright (c) 2002-2003, Jouni Malinen <jkmaline(a)cc.hut.fi>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
* Contact Information:
* James P. Ketrenos <ipw2100-admin(a)linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
@@@ -249,7 -265,7 +249,7 @@@ static int open_debug_level(struct inod
static const struct proc_ops debug_level_proc_ops = {
.proc_open = open_debug_level,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = write_debug_level,
.proc_release = single_release,
diff --combined drivers/usb/chipidea/debug.c
index da5d18cf6840,d734b97a7327..31a6fdcb7620
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@@ -18,7 -18,7 +18,7 @@@
#include "bits.h"
#include "otg.h"
-/**
+/*
* ci_device_show: prints information about device capabilities and status
*/
static int ci_device_show(struct seq_file *s, void *data)
@@@ -47,7 -47,7 +47,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_device);
-/**
+/*
* ci_port_test_show: reads port test mode
*/
static int ci_port_test_show(struct seq_file *s, void *data)
@@@ -67,7 -67,7 +67,7 @@@
return 0;
}
-/**
+/*
* ci_port_test_write: writes port test mode
*/
static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
@@@ -110,12 -110,12 +110,12 @@@ static int ci_port_test_open(struct ino
static const struct file_operations ci_port_test_fops = {
.open = ci_port_test_open,
.write = ci_port_test_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
-/**
+/*
* ci_qheads_show: DMA contents of all queue heads
*/
static int ci_qheads_show(struct seq_file *s, void *data)
@@@ -147,7 -147,7 +147,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_qheads);
-/**
+/*
* ci_requests_show: DMA contents of all requests currently queued (all endpts)
*/
static int ci_requests_show(struct seq_file *s, void *data)
@@@ -296,7 -296,7 +296,7 @@@ static int ci_role_open(struct inode *i
static const struct file_operations ci_role_fops = {
.open = ci_role_open,
.write = ci_role_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc2/debugfs.c
index aaafd463d72a,19a083e4f396..5a9586a6432f
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@@ -37,15 -37,15 +37,15 @@@ static ssize_t testmode_write(struct fi
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -78,19 -78,19 +78,19 @@@ static int testmode_show(struct seq_fil
case 0:
seq_puts(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_puts(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_puts(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_puts(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_puts(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_puts(s, "test_force_enable\n");
break;
default:
@@@ -109,7 -109,7 +109,7 @@@ static const struct file_operations tes
.owner = THIS_MODULE,
.open = testmode_open,
.write = testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc3/debugfs.c
index 14dc6a37305d,14c075ad29f9..22706bb23e04
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@@ -380,7 -380,7 +380,7 @@@ static ssize_t dwc3_lsp_write(struct fi
static const struct file_operations dwc3_lsp_fops = {
.open = dwc3_lsp_open,
.write = dwc3_lsp_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -445,7 -445,7 +445,7 @@@ static ssize_t dwc3_mode_write(struct f
static const struct file_operations dwc3_mode_fops = {
.open = dwc3_mode_open,
.write = dwc3_mode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -466,19 -466,19 +466,19 @@@ static int dwc3_testmode_show(struct se
case 0:
seq_printf(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_printf(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_printf(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_printf(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_printf(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_printf(s, "test_force_enable\n");
break;
default:
@@@ -506,15 -506,15 +506,15 @@@ static ssize_t dwc3_testmode_write(stru
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -528,7 -528,7 +528,7 @@@
static const struct file_operations dwc3_testmode_fops = {
.open = dwc3_testmode_open,
.write = dwc3_testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -620,7 -620,7 +620,7 @@@ static ssize_t dwc3_link_state_write(st
static const struct file_operations dwc3_link_state_fops = {
.open = dwc3_link_state_open,
.write = dwc3_link_state_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/gadget/udc/lpc32xx_udc.c
index e8a4637a9a17,bac74bb67290..e79f5f286cbb
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@@ -532,7 -532,7 +532,7 @@@ static int proc_udc_open(struct inode *
static const struct file_operations proc_ops = {
.owner = THIS_MODULE,
.open = proc_udc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1926,7 -1926,7 +1926,7 @@@ static const struct usb_ep_ops lpc32xx_
};
/* Send a ZLP on a non-0 IN EP */
-void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
/* Clear EP status */
udc_clearep_getsts(udc, ep->hwep_num);
@@@ -1940,7 -1940,7 +1940,7 @@@
* This function will only be called when a delayed ZLP needs to be sent out
* after a DMA transfer has filled both buffers.
*/
-void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
u32 epstatus;
struct lpc32xx_request *req;
@@@ -2986,7 -2986,7 +2986,7 @@@ static void lpc32xx_rmwkup_chg(int remo
/* Enable or disable USB remote wakeup */
}
-struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
+static struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
.vbus_drv_pol = 0,
.conn_chgb = &lpc32xx_usbd_conn_chg,
.susp_chgb = &lpc32xx_usbd_susp_chg,
diff --combined drivers/usb/host/xhci-debugfs.c
index 92e25a62fdb5,4a640031d944..8b6747b53434
--- a/drivers/usb/host/xhci-debugfs.c
+++ b/drivers/usb/host/xhci-debugfs.c
@@@ -110,7 -110,6 +110,7 @@@ static void xhci_debugfs_free_regset(st
kfree(regset);
}
+__printf(6, 7)
static void xhci_debugfs_regset(struct xhci_hcd *xhci, u32 base,
const struct debugfs_reg32 *regs,
size_t nregs, struct dentry *parent,
@@@ -249,7 -248,7 +249,7 @@@ static int xhci_ring_open(struct inode
static const struct file_operations xhci_ring_fops = {
.open = xhci_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -330,7 -329,7 +330,7 @@@ static int xhci_context_open(struct ino
static const struct file_operations xhci_context_fops = {
.open = xhci_context_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -391,7 -390,7 +391,7 @@@ static ssize_t xhci_port_write(struct f
static const struct file_operations port_fops = {
.open = xhci_port_open,
.write = xhci_port_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined fs/affs/file.c
index a26a0f96c119,7d51cc2e3dab..87d23705135b
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@@ -14,7 -14,6 +14,7 @@@
*/
#include <linux/uio.h>
+#include <linux/blkdev.h>
#include "affs.h"
static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);
@@@ -976,7 -975,6 +976,6 @@@ const struct file_operations affs_file_
.open = affs_file_open,
.release = affs_file_release,
.fsync = affs_file_fsync,
- .splice_read = generic_file_splice_read,
};
const struct inode_operations affs_file_inode_operations = {
diff --combined fs/block_dev.c
index 1a84168f7cf3,0aa66a6075eb..64c4fe8181f2
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@@ -105,7 -105,16 +105,7 @@@ EXPORT_SYMBOL(invalidate_bdev)
static void set_init_blocksize(struct block_device *bdev)
{
- unsigned bsize = bdev_logical_block_size(bdev);
- loff_t size = i_size_read(bdev->bd_inode);
-
- while (bsize < PAGE_SIZE) {
- if (size & bsize)
- break;
- bsize <<= 1;
- }
- bdev->bd_block_size = bsize;
- bdev->bd_inode->i_blkbits = blksize_bits(bsize);
+ bdev->bd_inode->i_blkbits = blksize_bits(bdev_logical_block_size(bdev));
}
int set_blocksize(struct block_device *bdev, int size)
@@@ -119,8 -128,9 +119,8 @@@
return -EINVAL;
/* Don't change the size if it is same as current */
- if (bdev->bd_block_size != size) {
+ if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
- bdev->bd_block_size = size;
bdev->bd_inode->i_blkbits = blksize_bits(size);
kill_bdev(bdev);
}
@@@ -693,12 -703,12 +693,12 @@@ int bdev_read_page(struct block_device
if (!ops->rw_page || bdev_get_integrity(bdev))
return result;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -729,7 -739,7 +729,7 @@@ int bdev_write_page(struct block_devic
if (!ops->rw_page || bdev_get_integrity(bdev))
return -EOPNOTSUPP;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
@@@ -742,7 -752,7 +742,7 @@@
clean_page_buffers(page);
unlock_page(page);
}
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -773,6 -783,7 +773,6 @@@ static void init_once(void *foo
memset(bdev, 0, sizeof(*bdev));
mutex_init(&bdev->bd_mutex);
- INIT_LIST_HEAD(&bdev->bd_list);
#ifdef CONFIG_SYSFS
INIT_LIST_HEAD(&bdev->bd_holder_disks);
#endif
@@@ -788,6 -799,9 +788,6 @@@ static void bdev_evict_inode(struct ino
truncate_inode_pages_final(&inode->i_data);
invalidate_inode_buffers(inode); /* is it needed here? */
clear_inode(inode);
- spin_lock(&bdev_lock);
- list_del_init(&bdev->bd_list);
- spin_unlock(&bdev_lock);
/* Detach inode from wb early as bdi_put() may free bdi->wb */
inode_detach_wb(inode);
if (bdev->bd_bdi != &noop_backing_dev_info) {
@@@ -862,6 -876,8 +862,6 @@@ static int bdev_set(struct inode *inode
return 0;
}
-static LIST_HEAD(all_bdevs);
-
struct block_device *bdget(dev_t dev)
{
struct block_device *bdev;
@@@ -879,6 -895,7 +879,6 @@@
bdev->bd_contains = NULL;
bdev->bd_super = NULL;
bdev->bd_inode = inode;
- bdev->bd_block_size = i_blocksize(inode);
bdev->bd_part_count = 0;
bdev->bd_invalidated = 0;
inode->i_mode = S_IFBLK;
@@@ -886,6 -903,9 +886,6 @@@
inode->i_bdev = bdev;
inode->i_data.a_ops = &def_blk_aops;
mapping_set_gfp_mask(&inode->i_data, GFP_USER);
- spin_lock(&bdev_lock);
- list_add(&bdev->bd_list, &all_bdevs);
- spin_unlock(&bdev_lock);
unlock_new_inode(inode);
}
return bdev;
@@@ -906,14 -926,13 +906,14 @@@ EXPORT_SYMBOL(bdgrab)
long nr_blockdev_pages(void)
{
- struct block_device *bdev;
+ struct inode *inode;
long ret = 0;
- spin_lock(&bdev_lock);
- list_for_each_entry(bdev, &all_bdevs, bd_list) {
- ret += bdev->bd_inode->i_mapping->nrpages;
- }
- spin_unlock(&bdev_lock);
+
+ spin_lock(&blockdev_superblock->s_inode_list_lock);
+ list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list)
+ ret += inode->i_mapping->nrpages;
+ spin_unlock(&blockdev_superblock->s_inode_list_lock);
+
return ret;
}
@@@ -1168,8 -1187,8 +1168,8 @@@ static void bd_clear_claiming(struct bl
* Finish exclusive open of a block device. Mark the device as exlusively
* open by the holder and wake up all waiters for exclusive open to finish.
*/
-void bd_finish_claiming(struct block_device *bdev, struct block_device *whole,
- void *holder)
+static void bd_finish_claiming(struct block_device *bdev,
+ struct block_device *whole, void *holder)
{
spin_lock(&bdev_lock);
BUG_ON(!bd_may_claim(bdev, whole, holder));
@@@ -1184,6 -1203,7 +1184,6 @@@
bd_clear_claiming(whole, holder);
spin_unlock(&bdev_lock);
}
-EXPORT_SYMBOL(bd_finish_claiming);
/**
* bd_abort_claiming - abort claiming of a block device
@@@ -1347,6 -1367,26 +1347,6 @@@ void bd_unlink_disk_holder(struct block
EXPORT_SYMBOL_GPL(bd_unlink_disk_holder);
#endif
-/**
- * flush_disk - invalidates all buffer-cache entries on a disk
- *
- * @bdev: struct block device to be flushed
- * @kill_dirty: flag to guide handling of dirty inodes
- *
- * Invalidates all buffer-cache entries on a disk. It should be called
- * when a disk has been changed -- either by a media change or online
- * resize.
- */
-static void flush_disk(struct block_device *bdev, bool kill_dirty)
-{
- if (__invalidate_device(bdev, kill_dirty)) {
- printk(KERN_WARNING "VFS: busy inodes on changed media or "
- "resized disk %s\n",
- bdev->bd_disk ? bdev->bd_disk->disk_name : "");
- }
- bdev->bd_invalidated = 1;
-}
-
/**
* check_disk_size_change - checks for disk size change and adjusts bdev size.
* @disk: struct gendisk to check
@@@ -1371,9 -1411,8 +1371,9 @@@ static void check_disk_size_change(stru
disk->disk_name, bdev_size, disk_size);
}
i_size_write(bdev->bd_inode, disk_size);
- if (bdev_size > disk_size)
- flush_disk(bdev, false);
+ if (bdev_size > disk_size && __invalidate_device(bdev, false))
+ pr_warn("VFS: busy inodes on resized disk %s\n",
+ disk->disk_name);
}
bdev->bd_invalidated = 0;
}
@@@ -1432,10 -1471,7 +1432,10 @@@ int check_disk_change(struct block_devi
if (!(events & DISK_EVENT_MEDIA_CHANGE))
return 0;
- flush_disk(bdev, true);
+ if (__invalidate_device(bdev, true))
+ pr_warn("VFS: busy inodes on changed media %s\n",
+ disk->disk_name);
+ bdev->bd_invalidated = 1;
if (bdops->revalidate_disk)
bdops->revalidate_disk(bdev->bd_disk);
return 1;
@@@ -1544,6 -1580,7 +1544,6 @@@ static int __blkdev_get(struct block_de
if (!bdev->bd_openers) {
first_open = true;
bdev->bd_disk = disk;
- bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_partno = partno;
@@@ -1564,6 -1601,7 +1564,6 @@@
disk_put_part(bdev->bd_part);
bdev->bd_part = NULL;
bdev->bd_disk = NULL;
- bdev->bd_queue = NULL;
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
put_disk_and_module(disk);
@@@ -1640,6 -1678,7 +1640,6 @@@
disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
- bdev->bd_queue = NULL;
if (bdev != bdev->bd_contains)
__blkdev_put(bdev->bd_contains, mode, 1);
bdev->bd_contains = NULL;
@@@ -1812,7 -1851,7 +1812,7 @@@ static int blkdev_open(struct inode * i
*/
filp->f_flags |= O_LARGEFILE;
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
if (filp->f_flags & O_NDELAY)
filp->f_mode |= FMODE_NDELAY;
@@@ -2121,7 -2160,6 +2121,6 @@@ const struct file_operations def_blk_fo
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_blkdev_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = blkdev_fallocate,
};
diff --combined fs/btrfs/file.c
index e050bd96e6c6,f3c81478b04e..b4ec68cc8ea1
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@@ -500,18 -500,18 +500,18 @@@ next
* this also makes the decision about creating an inline extent vs
* doing real data extents, marking pages dirty and delalloc as required.
*/
-int btrfs_dirty_pages(struct inode *inode, struct page **pages,
+int btrfs_dirty_pages(struct btrfs_inode *inode, struct page **pages,
size_t num_pages, loff_t pos, size_t write_bytes,
struct extent_state **cached)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_fs_info *fs_info = inode->root->fs_info;
int err = 0;
int i;
u64 num_bytes;
u64 start_pos;
u64 end_of_last_block;
u64 end_pos = pos + write_bytes;
- loff_t isize = i_size_read(inode);
+ loff_t isize = i_size_read(&inode->vfs_inode);
unsigned int extra_bits = 0;
start_pos = pos & ~((u64) fs_info->sectorsize - 1);
@@@ -524,13 -524,13 +524,13 @@@
* The pages may have already been dirty, clear out old accounting so
* we can set things up properly
*/
- clear_extent_bit(&BTRFS_I(inode)->io_tree, start_pos, end_of_last_block,
+ clear_extent_bit(&inode->io_tree, start_pos, end_of_last_block,
EXTENT_DELALLOC | EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG,
0, 0, cached);
- if (!btrfs_is_free_space_inode(BTRFS_I(inode))) {
+ if (!btrfs_is_free_space_inode(inode)) {
if (start_pos >= isize &&
- !(BTRFS_I(inode)->flags & BTRFS_INODE_PREALLOC)) {
+ !(inode->flags & BTRFS_INODE_PREALLOC)) {
/*
* There can't be any extents following eof in this case
* so just set the delalloc new bit for the range
@@@ -538,7 -538,8 +538,7 @@@
*/
extra_bits |= EXTENT_DELALLOC_NEW;
} else {
- err = btrfs_find_new_delalloc_bytes(BTRFS_I(inode),
- start_pos,
+ err = btrfs_find_new_delalloc_bytes(inode, start_pos,
num_bytes, cached);
if (err)
return err;
@@@ -563,7 -564,7 +563,7 @@@
* at this time.
*/
if (end_pos > isize)
- i_size_write(inode, end_pos);
+ i_size_write(&inode->vfs_inode, end_pos);
return 0;
}
@@@ -730,7 -731,7 +730,7 @@@ next
* is deleted from the tree.
*/
int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
+ struct btrfs_root *root, struct btrfs_inode *inode,
struct btrfs_path *path, u64 start, u64 end,
u64 *drop_end, int drop_cache,
int replace_extent,
@@@ -743,8 -744,7 +743,8 @@@
struct btrfs_ref ref = { 0 };
struct btrfs_key key;
struct btrfs_key new_key;
- u64 ino = btrfs_ino(BTRFS_I(inode));
+ struct inode *vfs_inode = &inode->vfs_inode;
+ u64 ino = btrfs_ino(inode);
u64 search_start = start;
u64 disk_bytenr = 0;
u64 num_bytes = 0;
@@@ -762,9 -762,9 +762,9 @@@
int leafs_visited = 0;
if (drop_cache)
- btrfs_drop_extent_cache(BTRFS_I(inode), start, end - 1, 0);
+ btrfs_drop_extent_cache(inode, start, end - 1, 0);
- if (start >= BTRFS_I(inode)->disk_i_size && !replace_extent)
+ if (start >= inode->disk_i_size && !replace_extent)
modify_tree = 0;
update_refs = (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) ||
@@@ -935,7 -935,7 +935,7 @@@ next_slot
extent_end - end);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, end - key.offset);
+ inode_sub_bytes(vfs_inode, end - key.offset);
break;
}
@@@ -955,7 -955,7 +955,7 @@@
start - key.offset);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, extent_end - start);
+ inode_sub_bytes(vfs_inode, extent_end - start);
if (end == extent_end)
break;
@@@ -979,7 -979,7 +979,7 @@@ delete_extent_item
if (update_refs &&
extent_type == BTRFS_FILE_EXTENT_INLINE) {
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
extent_end = ALIGN(extent_end,
fs_info->sectorsize);
@@@ -993,7 -993,7 +993,7 @@@
key.offset - extent_offset);
ret = btrfs_free_extent(trans, &ref);
BUG_ON(ret); /* -ENOMEM */
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
}
@@@ -1082,8 -1082,8 +1082,8 @@@ int btrfs_drop_extents(struct btrfs_tra
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- ret = __btrfs_drop_extents(trans, root, inode, path, start, end, NULL,
- drop_cache, 0, 0, NULL);
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path, start,
+ end, NULL, drop_cache, 0, 0, NULL);
btrfs_free_path(path);
return ret;
}
@@@ -1532,8 -1532,8 +1532,8 @@@ lock_and_cleanup_extent_if_need(struct
return ret;
}
-static noinline int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
- size_t *write_bytes, bool nowait)
+static int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes, bool nowait)
{
struct btrfs_fs_info *fs_info = inode->root->fs_info;
struct btrfs_root *root = inode->root;
@@@ -1541,9 -1541,6 +1541,9 @@@
u64 num_bytes;
int ret;
+ if (!(inode->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC)))
+ return 0;
+
if (!nowait && !btrfs_drew_try_write_lock(&root->snapshot_lock))
return -EAGAIN;
@@@ -1586,42 -1583,6 +1586,42 @@@ out_unlock
return ret;
}
+static int check_nocow_nolock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, true);
+}
+
+/*
+ * Check if we can do nocow write into the range [@pos, @pos + @write_bytes)
+ *
+ * @pos: File offset
+ * @write_bytes: The length to write, will be updated to the nocow writeable
+ * range
+ *
+ * This function will flush ordered extents in the range to ensure proper
+ * nocow checks.
+ *
+ * Return:
+ * >0 and update @write_bytes if we can do nocow write
+ * 0 if we can't do nocow write
+ * -EAGAIN if we can't get the needed lock or there are ordered extents
+ * for * (nowait == true) case
+ * <0 if other error happened
+ *
+ * NOTE: Callers need to release the lock by btrfs_check_nocow_unlock().
+ */
+int btrfs_check_nocow_lock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, false);
+}
+
+void btrfs_check_nocow_unlock(struct btrfs_inode *inode)
+{
+ btrfs_drew_write_unlock(&inode->root->snapshot_lock);
+}
+
static noinline ssize_t btrfs_buffered_write(struct kiocb *iocb,
struct iov_iter *i)
{
@@@ -1629,6 -1590,7 +1629,6 @@@
loff_t pos = iocb->ki_pos;
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct page **pages = NULL;
struct extent_changeset *data_reserved = NULL;
u64 release_bytes = 0;
@@@ -1681,12 -1643,13 +1681,12 @@@
fs_info->sectorsize);
extent_changeset_release(data_reserved);
- ret = btrfs_check_data_free_space(inode, &data_reserved, pos,
+ ret = btrfs_check_data_free_space(BTRFS_I(inode),
+ &data_reserved, pos,
write_bytes);
if (ret < 0) {
- if ((BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) &&
- check_can_nocow(BTRFS_I(inode), pos,
- &write_bytes, false) > 0) {
+ if (btrfs_check_nocow_lock(BTRFS_I(inode), pos,
+ &write_bytes) > 0) {
/*
* For nodata cow case, no need to reserve
* data space.
@@@ -1711,11 -1674,11 +1711,11 @@@
reserve_bytes);
if (ret) {
if (!only_release_metadata)
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, pos,
write_bytes);
else
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
break;
}
@@@ -1785,7 -1748,7 +1785,7 @@@ again
__pos = round_down(pos,
fs_info->sectorsize) +
(dirty_pages << PAGE_SHIFT);
- btrfs_delalloc_release_space(inode,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
data_reserved, __pos,
release_bytes, true);
}
@@@ -1795,9 -1758,8 +1795,9 @@@
fs_info->sectorsize);
if (copied > 0)
- ret = btrfs_dirty_pages(inode, pages, dirty_pages,
- pos, copied, &cached_state);
+ ret = btrfs_dirty_pages(BTRFS_I(inode), pages,
+ dirty_pages, pos, copied,
+ &cached_state);
/*
* If we have not locked the extent range, because the range's
@@@ -1820,7 -1782,7 +1820,7 @@@
release_bytes = 0;
if (only_release_metadata)
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
if (only_release_metadata && copied > 0) {
lockstart = round_down(pos,
@@@ -1838,6 -1800,8 +1838,6 @@@
cond_resched();
balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1)
- btrfs_btree_balance_dirty(fs_info);
pos += copied;
num_written += copied;
@@@ -1847,12 -1811,11 +1847,12 @@@
if (release_bytes) {
if (only_release_metadata) {
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
btrfs_delalloc_release_metadata(BTRFS_I(inode),
release_bytes, true);
} else {
- btrfs_delalloc_release_space(inode, data_reserved,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
+ data_reserved,
round_down(pos, fs_info->sectorsize),
release_bytes, true);
}
@@@ -1872,7 -1835,7 +1872,7 @@@ static ssize_t __btrfs_direct_write(str
loff_t endbyte;
int err;
- written = generic_file_direct_write(iocb, from);
+ written = btrfs_direct_IO(iocb, from);
if (written < 0 || !iov_iter_count(from))
return written;
@@@ -1963,8 -1926,10 +1963,8 @@@ static ssize_t btrfs_file_write_iter(st
* We will allocate space in case nodatacow is not set,
* so bail
*/
- if (!(BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) ||
- check_can_nocow(BTRFS_I(inode), pos, &nocow_bytes,
- true) <= 0) {
+ if (check_nocow_nolock(BTRFS_I(inode), pos, &nocow_bytes)
+ <= 0) {
inode_unlock(inode);
return -EAGAIN;
}
@@@ -2633,7 -2598,7 +2633,7 @@@ int btrfs_punch_hole_range(struct inod
cur_offset = start;
while (cur_offset < end) {
- ret = __btrfs_drop_extents(trans, root, inode, path,
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path,
cur_offset, end + 1, &drop_end,
1, 0, 0, NULL);
if (ret != -ENOSPC) {
@@@ -3211,14 -3176,14 +3211,14 @@@ reserve_space
if (ret < 0)
goto out;
space_reserved = true;
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- alloc_start, bytes_to_reserve);
- if (ret)
- goto out;
ret = btrfs_punch_hole_lock_range(inode, lockstart, lockend,
&cached_state);
if (ret)
goto out;
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), &data_reserved,
+ alloc_start, bytes_to_reserve);
+ if (ret)
+ goto out;
ret = btrfs_prealloc_file_range(inode, mode, alloc_start,
alloc_end - alloc_start,
i_blocksize(inode),
@@@ -3234,7 -3199,7 +3234,7 @@@
ret = btrfs_fallocate_update_isize(inode, offset + len, mode);
out:
if (ret && space_reserved)
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
alloc_start, bytes_to_reserve);
extent_changeset_free(data_reserved);
@@@ -3385,9 -3350,8 +3385,9 @@@ static long btrfs_fallocate(struct fil
free_extent_map(em);
break;
}
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- cur_offset, last_byte - cur_offset);
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode),
+ &data_reserved, cur_offset,
+ last_byte - cur_offset);
if (ret < 0) {
cur_offset = last_byte;
free_extent_map(em);
@@@ -3399,9 -3363,8 +3399,9 @@@
* range, free reserved data space first, otherwise
* it'll result in false ENOSPC error.
*/
- btrfs_free_reserved_data_space(inode, data_reserved,
- cur_offset, last_byte - cur_offset);
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
+ data_reserved, cur_offset,
+ last_byte - cur_offset);
}
free_extent_map(em);
cur_offset = last_byte;
@@@ -3418,7 -3381,7 +3418,7 @@@
range->len, i_blocksize(inode),
offset + len, &alloc_hint);
else
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, range->start,
range->len);
list_del(&range->list);
@@@ -3439,7 -3402,7 +3439,7 @@@ out
inode_unlock(inode);
/* Let go of our reservation. */
if (ret != 0 && !(mode & FALLOC_FL_ZERO_RANGE))
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
cur_offset, alloc_end - cur_offset);
extent_changeset_free(data_reserved);
return ret;
@@@ -3537,31 -3500,13 +3537,30 @@@ static loff_t btrfs_file_llseek(struct
static int btrfs_file_open(struct inode *inode, struct file *filp)
{
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return generic_file_open(inode, filp);
}
+static ssize_t btrfs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
+{
+ ssize_t ret = 0;
+
+ if (iocb->ki_flags & IOCB_DIRECT) {
+ struct inode *inode = file_inode(iocb->ki_filp);
+
+ inode_lock_shared(inode);
+ ret = btrfs_direct_IO(iocb, to);
+ inode_unlock_shared(inode);
+ if (ret < 0)
+ return ret;
+ }
+
+ return generic_file_buffered_read(iocb, to, ret);
+}
+
const struct file_operations btrfs_file_operations = {
.llseek = btrfs_file_llseek,
- .read_iter = generic_file_read_iter,
+ .read_iter = btrfs_file_read_iter,
- .splice_read = generic_file_splice_read,
.write_iter = btrfs_file_write_iter,
.splice_write = iter_file_splice_write,
.mmap = btrfs_file_mmap,
diff --combined fs/debugfs/file.c
index b167d2d02148,dcd7bdaf6741..e2e07eec50f1
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@@ -231,6 -231,10 +231,10 @@@ FULL_PROXY_FUNC(read, ssize_t, filp
loff_t *ppos),
ARGS(filp, buf, size, ppos));
+ FULL_PROXY_FUNC(read_iter, ssize_t, iocb->ki_filp,
+ PROTO(struct kiocb *iocb, struct iov_iter *iter),
+ ARGS(iocb, iter));
+
FULL_PROXY_FUNC(write, ssize_t, filp,
PROTO(struct file *filp, const char __user *buf, size_t size,
loff_t *ppos),
@@@ -273,7 -277,7 +277,7 @@@ static int full_proxy_release(struct in
r = real_fops->release(inode, filp);
replace_fops(filp, d_inode(dentry)->i_fop);
- kfree((void *)proxy_fops);
+ kfree(proxy_fops);
fops_put(real_fops);
return r;
}
@@@ -286,6 -290,8 +290,8 @@@ static void __full_proxy_fops_init(stru
proxy_fops->llseek = full_proxy_llseek;
if (real_fops->read)
proxy_fops->read = full_proxy_read;
+ if (real_fops->read_iter)
+ proxy_fops->read_iter = full_proxy_read_iter;
if (real_fops->write)
proxy_fops->write = full_proxy_write;
if (real_fops->poll)
@@@ -918,6 -924,11 +924,6 @@@ struct dentry *debugfs_create_blob(cons
}
EXPORT_SYMBOL_GPL(debugfs_create_blob);
-struct array_data {
- void *array;
- u32 elements;
-};
-
static size_t u32_format_array(char *buf, size_t bufsize,
u32 *array, int array_size)
{
@@@ -938,8 -949,8 +944,8 @@@
static int u32_array_open(struct inode *inode, struct file *file)
{
- struct array_data *data = inode->i_private;
- int size, elements = data->elements;
+ struct debugfs_u32_array *data = inode->i_private;
+ int size, elements = data->n_elements;
char *buf;
/*
@@@ -954,7 -965,7 +960,7 @@@
buf[size] = 0;
file->private_data = buf;
- u32_format_array(buf, size, data->array, data->elements);
+ u32_format_array(buf, size, data->array, data->n_elements);
return nonseekable_open(inode, file);
}
@@@ -991,7 -1002,8 +997,7 @@@ static const struct file_operations u32
* @parent: a pointer to the parent dentry for this file. This should be a
* directory dentry if set. If this parameter is %NULL, then the
* file will be created in the root of the debugfs filesystem.
- * @array: u32 array that provides data.
- * @elements: total number of elements in the array.
+ * @array: wrapper struct containing data pointer and size of the array.
*
* This function creates a file in debugfs with the given name that exports
* @array as data. If the @mode variable is so set it can be read from.
@@@ -999,10 -1011,17 +1005,10 @@@
* Once array is created its size can not be changed.
*/
void debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent, u32 *array, u32 elements)
+ struct dentry *parent,
+ struct debugfs_u32_array *array)
{
- struct array_data *data = kmalloc(sizeof(*data), GFP_KERNEL);
-
- if (data == NULL)
- return;
-
- data->array = array;
- data->elements = elements;
-
- debugfs_create_file_unsafe(name, mode, parent, data, &u32_array_fops);
+ debugfs_create_file_unsafe(name, mode, parent, array, &u32_array_fops);
}
EXPORT_SYMBOL_GPL(debugfs_create_u32_array);
@@@ -1067,7 -1086,7 +1073,7 @@@ static int debugfs_open_regset32(struc
static const struct file_operations fops_regset32 = {
.open = debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1113,7 -1132,7 +1119,7 @@@ static const struct file_operations deb
.owner = THIS_MODULE,
.open = debugfs_devm_entry_open,
.release = single_release,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek
};
diff --combined fs/exfat/file.c
index 6bdabfd4b134,8fe5df8a9ccb..f71b599f9bfe
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@@ -154,7 -154,6 +154,7 @@@ int __exfat_truncate(struct inode *inod
struct timespec64 ts;
struct exfat_dentry *ep, *ep2;
struct exfat_entry_set_cache *es;
+ int err;
es = exfat_get_dentry_set(sb, &(ei->dir), ei->entry,
ES_ALL_ENTRIES);
@@@ -177,7 -176,7 +177,7 @@@
ep2->dentry.stream.size = 0;
} else {
ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
- ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+ ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
}
if (new_size == 0) {
@@@ -189,9 -188,7 +189,9 @@@
}
exfat_update_dir_chksum_with_entry_set(es);
- exfat_free_dentry_set(es, inode_needs_sync(inode));
+ err = exfat_free_dentry_set(es, inode_needs_sync(inode));
+ if (err)
+ return err;
}
/* cut off from the FAT chain */
@@@ -372,7 -369,6 +372,6 @@@ const struct file_operations exfat_file
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = exfat_file_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/ext4/file.c
index 8f6324eb6b27,f5dc9a4e0937..cdfc8c6919c5
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@@ -53,7 -53,6 +53,7 @@@ static ssize_t ext4_dio_read_iter(struc
{
ssize_t ret;
struct inode *inode = file_inode(iocb->ki_filp);
+ unsigned int flags = 0;
if (iocb->ki_flags & IOCB_NOWAIT) {
if (!inode_trylock_shared(inode))
@@@ -75,11 -74,8 +75,11 @@@
return generic_file_read_iter(iocb, to);
}
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, to, &ext4_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ flags);
inode_unlock_shared(inode);
file_accessed(iocb->ki_filp);
@@@ -461,7 -457,6 +461,7 @@@ static ssize_t ext4_dio_write_iter(stru
const struct iomap_ops *iomap_ops = &ext4_iomap_ops;
bool extend = false, unaligned_io = false;
bool ilock_shared = true;
+ unsigned int flags = 0;
/*
* We initially start with shared inode lock unless it is
@@@ -545,12 -540,10 +545,12 @@@
ext4_journal_stop(handle);
}
+ if (is_sync_kiocb(iocb) || unaligned_io || extend)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
if (ilock_shared)
iomap_ops = &ext4_iomap_overwrite_ops;
ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io || extend);
+ flags);
if (extend)
ret = ext4_handle_inode_extension(inode, offset, ret, count);
@@@ -903,7 -896,6 +903,6 @@@ const struct file_operations ext4_file_
.release = ext4_release_file,
.fsync = ext4_sync_file,
.get_unmapped_area = thp_get_unmapped_area,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = ext4_fallocate,
};
diff --combined fs/f2fs/file.c
index 521987cd8772,6b34caf13b56..5719577f68ae
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@@ -105,11 -105,11 +105,11 @@@ static vm_fault_t f2fs_vm_page_mkwrite(
if (need_alloc) {
/* block allocation */
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = f2fs_get_block(&dn, page->index);
f2fs_put_dnode(&dn);
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
@@@ -1373,6 -1373,8 +1373,6 @@@ static int f2fs_collapse_range(struct i
truncate_pagecache(inode, offset);
new_size = i_size_read(inode) - len;
- truncate_pagecache(inode, new_size);
-
ret = f2fs_truncate_blocks(inode, new_size, true);
up_write(&F2FS_I(inode)->i_mmap_sem);
if (!ret)
@@@ -1658,7 -1660,7 +1658,7 @@@ next_alloc
map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f2fs_lock_op(sbi);
- f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+ f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA);
f2fs_unlock_op(sbi);
err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
@@@ -2525,11 -2527,6 +2525,11 @@@ do_more
}
ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
+ if (ret) {
+ if (ret == -EBUSY)
+ ret = -EAGAIN;
+ goto out;
+ }
range.start += BLKS_PER_SEC(sbi);
if (range.start <= end)
goto do_more;
@@@ -3362,7 -3359,7 +3362,7 @@@ static int f2fs_ioc_measure_verity(stru
return fsverity_ioctl_measure(filp, (void __user *)arg);
}
-static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_getfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@@ -3388,7 -3385,7 +3388,7 @@@
return err;
}
-static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
+static int f2fs_ioc_setfslabel(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@@ -3767,11 -3764,11 +3767,11 @@@ long f2fs_ioctl(struct file *filp, unsi
return -ENOSPC;
switch (cmd) {
- case F2FS_IOC_GETFLAGS:
+ case FS_IOC_GETFLAGS:
return f2fs_ioc_getflags(filp, arg);
- case F2FS_IOC_SETFLAGS:
+ case FS_IOC_SETFLAGS:
return f2fs_ioc_setflags(filp, arg);
- case F2FS_IOC_GETVERSION:
+ case FS_IOC_GETVERSION:
return f2fs_ioc_getversion(filp, arg);
case F2FS_IOC_START_ATOMIC_WRITE:
return f2fs_ioc_start_atomic_write(filp);
@@@ -3787,11 -3784,11 +3787,11 @@@
return f2fs_ioc_shutdown(filp, arg);
case FITRIM:
return f2fs_ioc_fitrim(filp, arg);
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
return f2fs_ioc_set_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
return f2fs_ioc_get_encryption_policy(filp, arg);
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
return f2fs_ioc_get_encryption_pwsalt(filp, arg);
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
return f2fs_ioc_get_encryption_policy_ex(filp, arg);
@@@ -3819,9 -3816,9 +3819,9 @@@
return f2fs_ioc_flush_device(filp, arg);
case F2FS_IOC_GET_FEATURES:
return f2fs_ioc_get_features(filp, arg);
- case F2FS_IOC_FSGETXATTR:
+ case FS_IOC_FSGETXATTR:
return f2fs_ioc_fsgetxattr(filp, arg);
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSSETXATTR:
return f2fs_ioc_fssetxattr(filp, arg);
case F2FS_IOC_GET_PIN_FILE:
return f2fs_ioc_get_pin_file(filp, arg);
@@@ -3835,10 -3832,10 +3835,10 @@@
return f2fs_ioc_enable_verity(filp, arg);
case FS_IOC_MEASURE_VERITY:
return f2fs_ioc_measure_verity(filp, arg);
- case F2FS_IOC_GET_VOLUME_NAME:
- return f2fs_get_volume_name(filp, arg);
- case F2FS_IOC_SET_VOLUME_NAME:
- return f2fs_set_volume_name(filp, arg);
+ case FS_IOC_GETFSLABEL:
+ return f2fs_ioc_getfslabel(filp, arg);
+ case FS_IOC_SETFSLABEL:
+ return f2fs_ioc_setfslabel(filp, arg);
case F2FS_IOC_GET_COMPRESS_BLOCKS:
return f2fs_get_compress_blocks(filp, arg);
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
@@@ -3969,14 -3966,14 +3969,14 @@@ out
long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
switch (cmd) {
- case F2FS_IOC32_GETFLAGS:
- cmd = F2FS_IOC_GETFLAGS;
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
break;
- case F2FS_IOC32_SETFLAGS:
- cmd = F2FS_IOC_SETFLAGS;
+ case FS_IOC32_SETFLAGS:
+ cmd = FS_IOC_SETFLAGS;
break;
- case F2FS_IOC32_GETVERSION:
- cmd = F2FS_IOC_GETVERSION;
+ case FS_IOC32_GETVERSION:
+ cmd = FS_IOC_GETVERSION;
break;
case F2FS_IOC_START_ATOMIC_WRITE:
case F2FS_IOC_COMMIT_ATOMIC_WRITE:
@@@ -3985,9 -3982,9 +3985,9 @@@
case F2FS_IOC_ABORT_VOLATILE_WRITE:
case F2FS_IOC_SHUTDOWN:
case FITRIM:
- case F2FS_IOC_SET_ENCRYPTION_POLICY:
- case F2FS_IOC_GET_ENCRYPTION_PWSALT:
- case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case FS_IOC_SET_ENCRYPTION_POLICY:
+ case FS_IOC_GET_ENCRYPTION_PWSALT:
+ case FS_IOC_GET_ENCRYPTION_POLICY:
case FS_IOC_GET_ENCRYPTION_POLICY_EX:
case FS_IOC_ADD_ENCRYPTION_KEY:
case FS_IOC_REMOVE_ENCRYPTION_KEY:
@@@ -4001,16 -3998,16 +4001,16 @@@
case F2FS_IOC_MOVE_RANGE:
case F2FS_IOC_FLUSH_DEVICE:
case F2FS_IOC_GET_FEATURES:
- case F2FS_IOC_FSGETXATTR:
- case F2FS_IOC_FSSETXATTR:
+ case FS_IOC_FSGETXATTR:
+ case FS_IOC_FSSETXATTR:
case F2FS_IOC_GET_PIN_FILE:
case F2FS_IOC_SET_PIN_FILE:
case F2FS_IOC_PRECACHE_EXTENTS:
case F2FS_IOC_RESIZE_FS:
case FS_IOC_ENABLE_VERITY:
case FS_IOC_MEASURE_VERITY:
- case F2FS_IOC_GET_VOLUME_NAME:
- case F2FS_IOC_SET_VOLUME_NAME:
+ case FS_IOC_GETFSLABEL:
+ case FS_IOC_SETFSLABEL:
case F2FS_IOC_GET_COMPRESS_BLOCKS:
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
@@@ -4036,6 -4033,5 +4036,5 @@@ const struct file_operations f2fs_file_
#ifdef CONFIG_COMPAT
.compat_ioctl = f2fs_compat_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/fuse/file.c
index ac502a259963,a404e147bb2c..76b7f68e1497
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@@ -1586,6 -1586,7 +1586,6 @@@ static void fuse_writepage_finish(struc
struct backing_dev_info *bdi = inode_to_bdi(inode);
int i;
- rb_erase(&wpa->writepages_entry, &fi->writepages);
for (i = 0; i < ap->num_pages; i++) {
dec_wb_stat(&bdi->wb, WB_WRITEBACK);
dec_node_page_state(ap->pages[i], NR_WRITEBACK_TEMP);
@@@ -1636,7 -1637,6 +1636,7 @@@ __acquires(fi->lock
out_free:
fi->writectr--;
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
fuse_writepage_finish(fc, wpa);
spin_unlock(&fi->lock);
@@@ -1674,8 -1674,7 +1674,8 @@@ __acquires(fi->lock
}
}
-static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+static struct fuse_writepage_args *fuse_insert_writeback(struct rb_root *root,
+ struct fuse_writepage_args *wpa)
{
pgoff_t idx_from = wpa->ia.write.in.offset >> PAGE_SHIFT;
pgoff_t idx_to = idx_from + wpa->ia.ap.num_pages - 1;
@@@ -1698,17 -1697,11 +1698,17 @@@
else if (idx_to < curr_index)
p = &(*p)->rb_left;
else
- return (void) WARN_ON(true);
+ return curr;
}
rb_link_node(&wpa->writepages_entry, parent, p);
rb_insert_color(&wpa->writepages_entry, root);
+ return NULL;
+}
+
+static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+{
+ WARN_ON(fuse_insert_writeback(root, wpa));
}
static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_args *args,
@@@ -1721,7 -1714,6 +1721,7 @@@
mapping_set_error(inode->i_mapping, error);
spin_lock(&fi->lock);
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
while (wpa->next) {
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_write_in *inarg = &wpa->ia.write.in;
@@@ -1960,14 -1952,14 +1960,14 @@@ static void fuse_writepages_send(struc
}
/*
- * First recheck under fi->lock if the offending offset is still under
- * writeback. If yes, then iterate auxiliary write requests, to see if there's
+ * Check under fi->lock if the page is under writeback, and insert it onto the
+ * rb_tree if not. Otherwise iterate auxiliary write requests, to see if there's
* one already added for a page at this offset. If there's none, then insert
* this new request onto the auxiliary list, otherwise reuse the existing one by
- * copying the new page contents over to the old temporary page.
+ * swapping the new temp page with the old one.
*/
-static bool fuse_writepage_in_flight(struct fuse_writepage_args *new_wpa,
- struct page *page)
+static bool fuse_writepage_add(struct fuse_writepage_args *new_wpa,
+ struct page *page)
{
struct fuse_inode *fi = get_fuse_inode(new_wpa->inode);
struct fuse_writepage_args *tmp;
@@@ -1975,15 -1967,17 +1975,15 @@@
struct fuse_args_pages *new_ap = &new_wpa->ia.ap;
WARN_ON(new_ap->num_pages != 0);
+ new_ap->num_pages = 1;
spin_lock(&fi->lock);
- rb_erase(&new_wpa->writepages_entry, &fi->writepages);
- old_wpa = fuse_find_writeback(fi, page->index, page->index);
+ old_wpa = fuse_insert_writeback(&fi->writepages, new_wpa);
if (!old_wpa) {
- tree_insert(&fi->writepages, new_wpa);
spin_unlock(&fi->lock);
- return false;
+ return true;
}
- new_ap->num_pages = 1;
for (tmp = old_wpa->next; tmp; tmp = tmp->next) {
pgoff_t curr_index;
@@@ -2012,41 -2006,7 +2012,41 @@@
fuse_writepage_free(new_wpa);
}
- return true;
+ return false;
+}
+
+static bool fuse_writepage_need_send(struct fuse_conn *fc, struct page *page,
+ struct fuse_args_pages *ap,
+ struct fuse_fill_wb_data *data)
+{
+ WARN_ON(!ap->num_pages);
+
+ /*
+ * Being under writeback is unlikely but possible. For example direct
+ * read to an mmaped fuse file will set the page dirty twice; once when
+ * the pages are faulted with get_user_pages(), and then after the read
+ * completed.
+ */
+ if (fuse_page_is_writeback(data->inode, page->index))
+ return true;
+
+ /* Reached max pages */
+ if (ap->num_pages == fc->max_pages)
+ return true;
+
+ /* Reached max write bytes */
+ if ((ap->num_pages + 1) * PAGE_SIZE > fc->max_write)
+ return true;
+
+ /* Discontinuity */
+ if (data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)
+ return true;
+
+ /* Need to grow the pages array? If so, did the expansion fail? */
+ if (ap->num_pages == data->max_pages && !fuse_pages_realloc(data))
+ return true;
+
+ return false;
}
static int fuse_writepages_fill(struct page *page,
@@@ -2059,6 -2019,7 +2059,6 @@@
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_conn *fc = get_fuse_conn(inode);
struct page *tmp_page;
- bool is_writeback;
int err;
if (!data->ff) {
@@@ -2068,9 -2029,25 +2068,9 @@@
goto out_unlock;
}
- /*
- * Being under writeback is unlikely but possible. For example direct
- * read to an mmaped fuse file will set the page dirty twice; once when
- * the pages are faulted with get_user_pages(), and then after the read
- * completed.
- */
- is_writeback = fuse_page_is_writeback(inode, page->index);
-
- if (wpa && ap->num_pages &&
- (is_writeback || ap->num_pages == fc->max_pages ||
- (ap->num_pages + 1) * PAGE_SIZE > fc->max_write ||
- data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)) {
+ if (wpa && fuse_writepage_need_send(fc, page, ap, data)) {
fuse_writepages_send(data);
data->wpa = NULL;
- } else if (wpa && ap->num_pages == data->max_pages) {
- if (!fuse_pages_realloc(data)) {
- fuse_writepages_send(data);
- data->wpa = NULL;
- }
}
err = -ENOMEM;
@@@ -2108,6 -2085,12 +2108,6 @@@
ap->args.end = fuse_writepage_end;
ap->num_pages = 0;
wpa->inode = inode;
-
- spin_lock(&fi->lock);
- tree_insert(&fi->writepages, wpa);
- spin_unlock(&fi->lock);
-
- data->wpa = wpa;
}
set_page_writeback(page);
@@@ -2115,25 -2098,26 +2115,25 @@@
ap->pages[ap->num_pages] = tmp_page;
ap->descs[ap->num_pages].offset = 0;
ap->descs[ap->num_pages].length = PAGE_SIZE;
+ data->orig_pages[ap->num_pages] = page;
inc_wb_stat(&inode_to_bdi(inode)->wb, WB_WRITEBACK);
inc_node_page_state(tmp_page, NR_WRITEBACK_TEMP);
err = 0;
- if (is_writeback && fuse_writepage_in_flight(wpa, page)) {
+ if (data->wpa) {
+ /*
+ * Protected by fi->lock against concurrent access by
+ * fuse_page_is_writeback().
+ */
+ spin_lock(&fi->lock);
+ ap->num_pages++;
+ spin_unlock(&fi->lock);
+ } else if (fuse_writepage_add(wpa, page)) {
+ data->wpa = wpa;
+ } else {
end_page_writeback(page);
- data->wpa = NULL;
- goto out_unlock;
}
- data->orig_pages[ap->num_pages] = page;
-
- /*
- * Protected by fi->lock against concurrent access by
- * fuse_page_is_writeback().
- */
- spin_lock(&fi->lock);
- ap->num_pages++;
- spin_unlock(&fi->lock);
-
out_unlock:
unlock_page(page);
@@@ -2165,8 -2149,10 +2165,8 @@@ static int fuse_writepages(struct addre
err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data);
if (data.wpa) {
- /* Ignore errors if we can write at least one page */
WARN_ON(!data.wpa->ia.ap.num_pages);
fuse_writepages_send(&data);
- err = 0;
}
if (data.ff)
fuse_file_put(data.ff, false, false);
@@@ -2977,7 -2963,7 +2977,7 @@@ static void fuse_register_polled_file(s
{
spin_lock(&fc->lock);
if (RB_EMPTY_NODE(&ff->polled_node)) {
- struct rb_node **link, *uninitialized_var(parent);
+ struct rb_node **link, *parent;
link = fuse_find_polled_node(fc, ff->kh, &parent);
BUG_ON(*link);
@@@ -3396,7 -3382,6 +3396,6 @@@ static const struct file_operations fus
.fsync = fuse_fsync,
.lock = fuse_file_lock,
.flock = fuse_file_flock,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = fuse_file_ioctl,
.compat_ioctl = fuse_file_compat_ioctl,
diff --combined fs/gfs2/file.c
index 973cac25e781,3e0f0435c96a..8f172bbf5996
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@@ -781,44 -781,40 +781,44 @@@ static int gfs2_fsync(struct file *file
return ret ? ret : ret1;
}
-static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to)
+static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
size_t count = iov_iter_count(to);
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
if (!count)
return 0; /* skip atime */
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
- ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
- gfs2_glock_dq(&gh);
+ ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL, flags);
+
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
-static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
+static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct gfs2_inode *ip = GFS2_I(inode);
size_t len = iov_iter_count(from);
loff_t offset = iocb->ki_pos;
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
/*
* Deferred lock, even if its a write, since we do no allocation on
@@@ -828,8 -824,8 +828,8 @@@
* unfortunately, have the option of only flushing a range like the
* VFS does.
*/
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
@@@ -837,15 -833,13 +837,15 @@@
if (offset + len > i_size_read(&ip->i_inode))
goto out;
- ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL, flags);
out:
- gfs2_glock_dq(&gh);
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
@@@ -857,7 -851,7 +857,7 @@@ static ssize_t gfs2_file_read_iter(stru
ssize_t ret;
if (iocb->ki_flags & IOCB_DIRECT) {
- ret = gfs2_file_direct_read(iocb, to);
+ ret = gfs2_file_direct_read(iocb, to, &gh);
if (likely(ret != -ENOTBLK))
return ret;
iocb->ki_flags &= ~IOCB_DIRECT;
@@@ -906,12 -900,13 +906,12 @@@ static ssize_t gfs2_file_write_iter(str
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_holder gh;
ssize_t ret;
gfs2_size_hint(file, iocb->ki_pos, iov_iter_count(from));
if (iocb->ki_flags & IOCB_APPEND) {
- struct gfs2_holder gh;
-
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
return ret;
@@@ -935,7 -930,7 +935,7 @@@
struct address_space *mapping = file->f_mapping;
ssize_t buffered, ret2;
- ret = gfs2_file_direct_write(iocb, from);
+ ret = gfs2_file_direct_write(iocb, from, &gh);
if (ret < 0 || !iov_iter_count(from))
goto out_unlock;
@@@ -1376,7 -1371,6 +1376,6 @@@ const struct file_operations gfs2_file_
.fsync = gfs2_fsync,
.lock = gfs2_lock,
.flock = gfs2_flock,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = simple_nosetlease,
.fallocate = gfs2_fallocate,
@@@ -1407,7 -1401,6 +1406,6 @@@ const struct file_operations gfs2_file_
.open = gfs2_open,
.release = gfs2_release,
.fsync = gfs2_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = generic_setlease,
.fallocate = gfs2_fallocate,
diff --combined fs/gfs2/glock.c
index 57134d326cfa,ffc9e4273a23..63a6c3e391e9
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@@ -2106,12 -2106,6 +2106,12 @@@ static const char *gflags2str(char *buf
*p++ = 'o';
if (test_bit(GLF_BLOCKING, gflags))
*p++ = 'b';
+ if (test_bit(GLF_INODE_CREATING, gflags))
+ *p++ = 'c';
+ if (test_bit(GLF_PENDING_DELETE, gflags))
+ *p++ = 'P';
+ if (test_bit(GLF_FREEING, gflags))
+ *p++ = 'x';
*p = 0;
return buf;
}
@@@ -2479,7 -2473,7 +2479,7 @@@ static int gfs2_sbstats_open(struct ino
static const struct file_operations gfs2_glocks_fops = {
.owner = THIS_MODULE,
.open = gfs2_glocks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2487,7 -2481,7 +2487,7 @@@
static const struct file_operations gfs2_glstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_glstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2495,7 -2489,7 +2495,7 @@@
static const struct file_operations gfs2_sbstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_sbstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/hfs/inode.c
index f35a37c65e5f,6181d3818e17..8d78da646f74
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@@ -17,7 -17,6 +17,7 @@@
#include <linux/cred.h>
#include <linux/uio.h>
#include <linux/xattr.h>
+#include <linux/blkdev.h>
#include "hfs_fs.h"
#include "btree.h"
@@@ -683,7 -682,6 +683,6 @@@ static const struct file_operations hfs
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
- .splice_read = generic_file_splice_read,
.fsync = hfs_file_fsync,
.open = hfs_file_open,
.release = hfs_file_release,
diff --combined fs/nfsd/nfsctl.c
index 7ae236113040,c6f2faa759d1..b36911385f5d
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@@ -159,7 -159,7 +159,7 @@@ static int exports_proc_open(struct ino
static const struct proc_ops exports_proc_ops = {
.proc_open = exports_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
@@@ -171,7 -171,7 +171,7 @@@ static int exports_nfsd_open(struct ino
static const struct file_operations exports_nfsd_operations = {
.open = exports_nfsd_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -189,7 -189,7 +189,7 @@@ static int export_features_open(struct
static const struct file_operations export_features_operations = {
.open = export_features_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -208,7 -208,7 +208,7 @@@ static int supported_enctypes_open(stru
static const struct file_operations supported_enctypes_ops = {
.open = supported_enctypes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -216,14 -216,14 +216,14 @@@
static const struct file_operations pool_stats_operations = {
.open = nfsd_pool_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = nfsd_pool_stats_release,
};
static const struct file_operations reply_cache_stats_operations = {
.open = nfsd_reply_cache_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -351,7 -351,7 +351,7 @@@ static ssize_t write_unlock_fs(struct f
static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
{
char *dname, *path;
- int uninitialized_var(maxsize);
+ int maxsize;
char *mesg = buf;
int len;
struct auth_domain *dom;
diff --combined fs/omfs/file.c
index 2c7b70ee1388,0dddc6c644c1..cae3f4dcae54
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@@ -220,7 -220,7 +220,7 @@@ static int omfs_get_block(struct inode
struct buffer_head *bh;
sector_t next, offset;
int ret;
- u64 uninitialized_var(new_block);
+ u64 new_block;
u32 max_extents;
int extent_count;
struct omfs_extent *oe;
@@@ -340,7 -340,6 +340,6 @@@ const struct file_operations omfs_file_
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = generic_file_fsync,
- .splice_read = generic_file_splice_read,
};
static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
diff --combined fs/proc/array.c
index 65ec2029fa80,49456efa31e3..5f6c8a8cb701
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@@ -341,8 -341,6 +341,8 @@@ static inline void task_seccomp(struct
seq_put_decimal_ull(m, "NoNewPrivs:\t", task_no_new_privs(p));
#ifdef CONFIG_SECCOMP
seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode);
+ seq_put_decimal_ull(m, "\nSeccomp_filters:\t",
+ atomic_read(&p->seccomp.filter_count));
#endif
seq_puts(m, "\nSpeculation_Store_Bypass:\t");
switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
@@@ -768,7 -766,7 +768,7 @@@ static int children_seq_open(struct ino
const struct file_operations proc_tid_children_operations = {
.open = children_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/proc/task_mmu.c
index 4f8ae353a8c5,df2f0f05f5ba..3465973308b7
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@@ -351,7 -351,7 +351,7 @@@ static int pid_maps_open(struct inode *
const struct file_operations proc_pid_maps_operations = {
.open = pid_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
@@@ -653,10 -653,6 +653,10 @@@ static void show_smap_vma_flags(struct
[ilog2(VM_MERGEABLE)] = "mg",
[ilog2(VM_UFFD_MISSING)]= "um",
[ilog2(VM_UFFD_WP)] = "uw",
+#ifdef CONFIG_ARM64_MTE
+ [ilog2(VM_MTE)] = "mt",
+ [ilog2(VM_MTE_ALLOWED)] = "",
+#endif
#ifdef CONFIG_ARCH_HAS_PKEYS
/* These come out via ProtectionKey: */
[ilog2(VM_PKEY_BIT0)] = "",
@@@ -937,14 -933,14 +937,14 @@@ static int smaps_rollup_release(struct
const struct file_operations proc_pid_smaps_operations = {
.open = pid_smaps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
const struct file_operations proc_pid_smaps_rollup_operations = {
.open = smaps_rollup_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = smaps_rollup_release,
};
@@@ -1883,7 -1879,7 +1883,7 @@@ static int pid_numa_maps_open(struct in
const struct file_operations proc_pid_numa_maps_operations = {
.open = pid_numa_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
diff --combined fs/ubifs/file.c
index b77d1637bbbc,a3af46b39508..fb41c77cae1e
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@@ -222,7 -222,7 +222,7 @@@ static int write_begin_slow(struct addr
struct ubifs_info *c = inode->i_sb->s_fs_info;
pgoff_t index = pos >> PAGE_SHIFT;
struct ubifs_budget_req req = { .new_page = 1 };
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
struct page *page;
dbg_gen("ino %lu, pos %llu, len %u, i_size %lld",
@@@ -426,7 -426,7 +426,7 @@@ static int ubifs_write_begin(struct fil
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode);
pgoff_t index = pos >> PAGE_SHIFT;
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
int skipped_read = 0;
struct page *page;
@@@ -1668,7 -1668,6 +1668,6 @@@ const struct file_operations ubifs_file
.mmap = ubifs_file_mmap,
.fsync = ubifs_fsync,
.unlocked_ioctl = ubifs_ioctl,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.open = fscrypt_file_open,
#ifdef CONFIG_COMPAT
diff --combined fs/xfs/xfs_file.c
index 781f72b06af0,964bc733e765..36ba167f0e80
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@@ -94,7 -94,6 +94,7 @@@ xfs_file_fsync
{
struct inode *inode = file->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_inode_log_item *iip = ip->i_itemp;
struct xfs_mount *mp = ip->i_mount;
int error = 0;
int log_flushed = 0;
@@@ -138,15 -137,13 +138,15 @@@
xfs_ilock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip)) {
if (!datasync ||
- (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
- lsn = ip->i_itemp->ili_last_lsn;
+ (iip->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
+ lsn = iip->ili_last_lsn;
}
if (lsn) {
error = xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed);
- ip->i_itemp->ili_fsync_fields = 0;
+ spin_lock(&iip->ili_lock);
+ iip->ili_fsync_fields = 0;
+ spin_unlock(&iip->ili_lock);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@@ -172,8 -169,6 +172,8 @@@ xfs_file_dio_aio_read
struct xfs_inode *ip = XFS_I(file_inode(iocb->ki_filp));
size_t count = iov_iter_count(to);
ssize_t ret;
+ unsigned int flags = 0;
+
trace_xfs_file_direct_read(ip, count, iocb->ki_pos);
@@@ -188,11 -183,8 +188,11 @@@
} else {
xfs_ilock(ip, XFS_IOLOCK_SHARED);
}
- ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL, flags);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
return ret;
@@@ -491,7 -483,6 +491,7 @@@ xfs_file_dio_aio_write
int iolock;
size_t count = iov_iter_count(from);
struct xfs_buftarg *target = xfs_inode_buftarg(ip);
+ unsigned int flags = 0;
/* DIO must be aligned to device logical sector size */
if ((iocb->ki_pos | count) & target->bt_logical_sectormask)
@@@ -555,10 -546,9 +555,10 @@@
* If unaligned, this is the only IO in-flight. Wait on it before we
* release the iolock to prevent subsequent overlapping IO.
*/
+ if (is_sync_kiocb(iocb) || unaligned_io)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, from, &xfs_direct_write_iomap_ops,
- &xfs_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io);
+ &xfs_dio_write_ops, flags);
out:
xfs_iunlock(ip, iolock);
@@@ -1045,7 -1035,7 +1045,7 @@@ xfs_file_remap_range
/* Prepare and then clone file data. */
ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out,
&len, remap_flags);
- if (ret < 0 || len == 0)
+ if (ret || len == 0)
return ret;
trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out);
@@@ -1075,7 -1065,7 +1075,7 @@@
if (mp->m_flags & XFS_MOUNT_WSYNC)
xfs_log_force_inode(dest);
out_unlock:
- xfs_reflink_remap_unlock(file_in, file_out);
+ xfs_iunlock2_io_mmap(src, dest);
if (ret)
trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_);
return remapped > 0 ? remapped : ret;
@@@ -1090,7 -1080,7 +1090,7 @@@ xfs_file_open
return -EFBIG;
if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb)))
return -EIO;
- file->f_mode |= FMODE_NOWAIT;
+ file->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return 0;
}
@@@ -1273,23 -1263,10 +1273,23 @@@ xfs_filemap_pfn_mkwrite
return __xfs_filemap_fault(vmf, PE_SIZE_PTE, true);
}
+static void
+xfs_filemap_map_pages(
+ struct vm_fault *vmf,
+ pgoff_t start_pgoff,
+ pgoff_t end_pgoff)
+{
+ struct inode *inode = file_inode(vmf->vma->vm_file);
+
+ xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+ filemap_map_pages(vmf, start_pgoff, end_pgoff);
+ xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+}
+
static const struct vm_operations_struct xfs_file_vm_ops = {
.fault = xfs_filemap_fault,
.huge_fault = xfs_filemap_huge_fault,
- .map_pages = filemap_map_pages,
+ .map_pages = xfs_filemap_map_pages,
.page_mkwrite = xfs_filemap_page_mkwrite,
.pfn_mkwrite = xfs_filemap_pfn_mkwrite,
};
@@@ -1320,7 -1297,6 +1320,6 @@@ const struct file_operations xfs_file_o
.llseek = xfs_file_llseek,
.read_iter = xfs_file_read_iter,
.write_iter = xfs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
.unlocked_ioctl = xfs_file_ioctl,
diff --combined fs/zonefs/super.c
index 798e2e636887,d9f5fbeb5506..0d59e3fff1a7
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@@ -670,7 -670,6 +670,7 @@@ static ssize_t zonefs_file_dio_write(st
bool append = false;
size_t count;
ssize_t ret;
+ int flags = 0;
/*
* For async direct IOs to sequential zone files, refuse IOCB_NOWAIT
@@@ -712,15 -711,11 +712,15 @@@
append = sync;
}
- if (append)
+ if (append) {
ret = zonefs_file_dio_append(iocb, from);
- else
+ } else {
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
- &zonefs_write_dio_ops, sync);
+ &zonefs_write_dio_ops, flags);
+ }
if (zi->i_ztype == ZONEFS_ZTYPE_SEQ &&
(ret > 0 || ret == -EIOCBQUEUED)) {
if (ret > 0)
@@@ -819,7 -814,6 +819,7 @@@ static ssize_t zonefs_file_read_iter(st
struct super_block *sb = inode->i_sb;
loff_t isize;
ssize_t ret;
+ int flags = 0;
/* Offline zones cannot be read */
if (unlikely(IS_IMMUTABLE(inode) && !(inode->i_mode & 0777)))
@@@ -854,10 -848,8 +854,10 @@@
goto inode_unlock;
}
file_accessed(iocb->ki_filp);
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, to, &zonefs_iomap_ops,
- &zonefs_read_dio_ops, is_sync_kiocb(iocb));
+ &zonefs_read_dio_ops, flags);
} else {
ret = generic_file_read_iter(iocb, to);
if (ret == -EIO)
@@@ -877,7 -869,6 +877,6 @@@ static const struct file_operations zon
.llseek = zonefs_file_llseek,
.read_iter = zonefs_file_read_iter,
.write_iter = zonefs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
};
diff --combined include/linux/bpf-cgroup.h
index 2c6f26670acc,f81d3b3752f9..a4079965c98e
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@@ -132,7 -132,7 +132,7 @@@ int __cgroup_bpf_check_dev_permission(s
int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
struct ctl_table *table, int write,
- void **buf, size_t *pcount, loff_t *ppos,
+ char **buf, size_t *pcount, loff_t *ppos,
enum bpf_attach_type type);
int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
@@@ -210,9 -210,6 +210,9 @@@ int bpf_percpu_cgroup_storage_update(st
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_CREATE)
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \
+ BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_RELEASE)
+
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET4_POST_BIND)
@@@ -404,7 -401,6 +404,7 @@@ static inline int bpf_percpu_cgroup_sto
#define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET6_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
diff --combined include/linux/fs.h
index a771d4f2e41d,7680752cff24..166ae3eafb58
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@@ -39,7 -39,6 +39,7 @@@
#include <linux/fs_types.h>
#include <linux/build_bug.h>
#include <linux/stddef.h>
+#include <linux/watch_queue.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@@ -69,7 -68,6 +69,7 @@@ struct fsverity_info
struct fsverity_operations;
struct fs_context;
struct fs_parameter_spec;
+struct fsinfo_context;
extern void __init inode_init(void);
extern void __init inode_init_early(void);
@@@ -177,9 -175,6 +177,9 @@@ typedef int (dio_iodone_t)(struct kioc
/* File does not contribute to nr_files count */
#define FMODE_NOACCOUNT ((__force fmode_t)0x20000000)
+/* File supports async buffered reads */
+#define FMODE_BUF_RASYNC ((__force fmode_t)0x40000000)
+
/*
* Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
* that indicates that they should check the contents of the iovec are
@@@ -320,8 -315,6 +320,8 @@@ enum rw_hint
#define IOCB_SYNC (1 << 5)
#define IOCB_WRITE (1 << 6)
#define IOCB_NOWAIT (1 << 7)
+/* iocb->ki_waitq is valid */
+#define IOCB_WAITQ (1 << 8)
#define IOCB_NOIO (1 << 9)
struct kiocb {
@@@ -336,10 -329,7 +336,10 @@@
int ki_flags;
u16 ki_hint;
u16 ki_ioprio; /* See linux/ioprio.h */
- unsigned int ki_cookie; /* for ->iopoll */
+ union {
+ unsigned int ki_cookie; /* for ->iopoll */
+ struct wait_page_queue *ki_waitq; /* for async buffered IO */
+ };
randomized_struct_fields_end
};
@@@ -481,6 -471,45 +481,6 @@@ struct address_space
* must be enforced here for CRIS, to let the least significant bit
* of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON.
*/
-struct request_queue;
-
-struct block_device {
- dev_t bd_dev; /* not a kdev_t - it's a search key */
- int bd_openers;
- struct inode * bd_inode; /* will die */
- struct super_block * bd_super;
- struct mutex bd_mutex; /* open/close mutex */
- void * bd_claiming;
- void * bd_holder;
- int bd_holders;
- bool bd_write_holder;
-#ifdef CONFIG_SYSFS
- struct list_head bd_holder_disks;
-#endif
- struct block_device * bd_contains;
- unsigned bd_block_size;
- u8 bd_partno;
- struct hd_struct * bd_part;
- /* number of times partitions within this device have been opened. */
- unsigned bd_part_count;
- int bd_invalidated;
- struct gendisk * bd_disk;
- struct request_queue * bd_queue;
- struct backing_dev_info *bd_bdi;
- struct list_head bd_list;
- /*
- * Private data. You must have bd_claim'ed the block_device
- * to use this. NOTE: bd_claim allows an owner to claim
- * the same device multiple times, the owner must take special
- * care to not mess up bd_private for that case.
- */
- unsigned long bd_private;
-
- /* The counter of freeze processes */
- int bd_fsfreeze_count;
- /* Mutex for freeze */
- struct mutex bd_fsfreeze_mutex;
-} __randomize_layout;
/* XArray tags, for tagging dirty and writeback pages in the pagecache. */
#define PAGECACHE_TAG_DIRTY XA_MARK_0
@@@ -879,6 -908,8 +879,6 @@@ static inline unsigned imajor(const str
return MAJOR(inode->i_rdev);
}
-extern struct block_device *I_BDEV(struct inode *inode);
-
struct fown_struct {
rwlock_t lock; /* protects pid, uid, euid fields */
struct pid *pid; /* pid or -pgrp where SIGIO should be sent */
@@@ -1350,7 -1381,6 +1350,7 @@@ extern int send_sigurg(struct fown_stru
#define SB_NODIRATIME 2048 /* Do not update directory access times */
#define SB_SILENT 32768
#define SB_POSIXACL (1<<16) /* VFS does not apply the umask */
+#define SB_INLINECRYPT (1<<17) /* Use blk-crypto for encrypted files */
#define SB_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define SB_I_VERSION (1<<23) /* Update inode I_version field */
#define SB_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
@@@ -1534,15 -1564,6 +1534,15 @@@ struct super_block
spinlock_t s_inode_wblist_lock;
struct list_head s_inodes_wb; /* writeback inodes */
+
+ /* Superblock event notifications */
+ u64 s_unique_id;
+
+#ifdef CONFIG_SB_NOTIFICATIONS
+ struct watch_list *s_watchers;
+#endif
+ atomic_t s_change_counter; /* Count of config change notifications */
+ atomic_t s_notify_counter; /* Count of other notifications */
} __randomize_layout;
/* Helper functions so that in most cases filesystems will
@@@ -1754,6 -1775,14 +1754,6 @@@ struct dir_context
loff_t pos;
};
-struct block_device_operations;
-
-/* These macros are for out of kernel modules to test that
- * the kernel supports the unlocked_ioctl and compat_ioctl
- * fields in struct file_operations. */
-#define HAVE_COMPAT_IOCTL 1
-#define HAVE_UNLOCKED_IOCTL 1
-
/*
* These flags let !MMU mmap() govern direct device mapping vs immediate
* copying more easily for MAP_PRIVATE, especially for ROM filesystems.
@@@ -1891,8 -1920,6 +1891,6 @@@ ssize_t rw_copy_check_uvector(int type
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
- extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
- unsigned long, loff_t *, rwf_t);
extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
loff_t, size_t, unsigned int);
extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
@@@ -1931,9 -1958,6 +1929,9 @@@ struct super_operations
int (*thaw_super) (struct super_block *);
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
+#ifdef CONFIG_FSINFO
+ int (*fsinfo)(struct path *, struct fsinfo_context *);
+#endif
int (*remount_fs) (struct super_block *, int *, char *);
void (*umount_begin) (struct super_block *);
@@@ -2132,10 -2156,6 +2130,10 @@@ static inline void kiocb_clone(struct k
*
* I_DONTCACHE Evict inode as soon as it is not used anymore.
*
+ * I_SYNC_QUEUED Inode is queued in b_io or b_more_io writeback lists.
+ * Used to detect that mark_inode_dirty() should not move
+ * inode between dirty lists.
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@@ -2153,11 -2173,12 +2151,11 @@@
#define I_DIO_WAKEUP (1 << __I_DIO_WAKEUP)
#define I_LINKABLE (1 << 10)
#define I_DIRTY_TIME (1 << 11)
-#define __I_DIRTY_TIME_EXPIRED 12
-#define I_DIRTY_TIME_EXPIRED (1 << __I_DIRTY_TIME_EXPIRED)
#define I_WB_SWITCH (1 << 13)
#define I_OVL_INUSE (1 << 14)
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
+#define I_SYNC_QUEUED (1 << 17)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
@@@ -2241,9 -2262,18 +2239,9 @@@ struct file_system_type
#define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME)
-#ifdef CONFIG_BLOCK
extern struct dentry *mount_bdev(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
int (*fill_super)(struct super_block *, void *, int));
-#else
-static inline struct dentry *mount_bdev(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data,
- int (*fill_super)(struct super_block *, void *, int))
-{
- return ERR_PTR(-ENODEV);
-}
-#endif
extern struct dentry *mount_single(struct file_system_type *fs_type,
int flags, void *data,
int (*fill_super)(struct super_block *, void *, int));
@@@ -2252,7 -2282,14 +2250,7 @@@ extern struct dentry *mount_nodev(struc
int (*fill_super)(struct super_block *, void *, int));
extern struct dentry *mount_subtree(struct vfsmount *mnt, const char *path);
void generic_shutdown_super(struct super_block *sb);
-#ifdef CONFIG_BLOCK
void kill_block_super(struct super_block *sb);
-#else
-static inline void kill_block_super(struct super_block *sb)
-{
- BUG();
-}
-#endif
void kill_anon_super(struct super_block *sb);
void kill_litter_super(struct super_block *sb);
void deactivate_super(struct super_block *sb);
@@@ -2542,16 -2579,93 +2540,16 @@@ extern struct kmem_cache *names_cachep
#define __getname() kmem_cache_alloc(names_cachep, GFP_KERNEL)
#define __putname(name) kmem_cache_free(names_cachep, (void *)(name))
-#ifdef CONFIG_BLOCK
-extern int register_blkdev(unsigned int, const char *);
-extern void unregister_blkdev(unsigned int, const char *);
-extern struct block_device *bdget(dev_t);
-extern struct block_device *bdgrab(struct block_device *bdev);
-extern void bd_set_size(struct block_device *, loff_t size);
-extern void bd_forget(struct inode *inode);
-extern void bdput(struct block_device *);
-extern void invalidate_bdev(struct block_device *);
-extern void iterate_bdevs(void (*)(struct block_device *, void *), void *);
-extern int sync_blockdev(struct block_device *bdev);
-extern struct super_block *freeze_bdev(struct block_device *);
-extern void emergency_thaw_all(void);
-extern void emergency_thaw_bdev(struct super_block *sb);
-extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
-extern int fsync_bdev(struct block_device *);
-
extern struct super_block *blockdev_superblock;
-
static inline bool sb_is_blkdev_sb(struct super_block *sb)
{
- return sb == blockdev_superblock;
-}
-#else
-static inline void bd_forget(struct inode *inode) {}
-static inline int sync_blockdev(struct block_device *bdev) { return 0; }
-static inline void invalidate_bdev(struct block_device *bdev) {}
-
-static inline struct super_block *freeze_bdev(struct block_device *sb)
-{
- return NULL;
-}
-
-static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
- return 0;
-}
-
-static inline int emergency_thaw_bdev(struct super_block *sb)
-{
- return 0;
-}
-
-static inline void iterate_bdevs(void (*f)(struct block_device *, void *), void *arg)
-{
+ return IS_ENABLED(CONFIG_BLOCK) && sb == blockdev_superblock;
}
-static inline bool sb_is_blkdev_sb(struct super_block *sb)
-{
- return false;
-}
-#endif
+void emergency_thaw_all(void);
extern int sync_filesystem(struct super_block *);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
-#ifdef CONFIG_BLOCK
-extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
-extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long);
-extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder);
-extern struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
- void *holder);
-extern struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode,
- void *holder);
-extern struct block_device *bd_start_claiming(struct block_device *bdev,
- void *holder);
-extern void bd_finish_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void bd_abort_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void blkdev_put(struct block_device *bdev, fmode_t mode);
-
-#ifdef CONFIG_SYSFS
-extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
-extern void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk);
-#else
-static inline int bd_link_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
- return 0;
-}
-static inline void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
-}
-#endif
-#endif
/* fs/char_dev.c */
#define CHRDEV_MAJOR_MAX 512
@@@ -2582,12 -2696,31 +2580,12 @@@ static inline void unregister_chrdev(un
__unregister_chrdev(major, 0, 256, name);
}
-/* fs/block_dev.c */
-#define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */
-#define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */
-
-#ifdef CONFIG_BLOCK
-#define BLKDEV_MAJOR_MAX 512
-extern const char *bdevname(struct block_device *bdev, char *buffer);
-extern struct block_device *lookup_bdev(const char *);
-extern void blkdev_show(struct seq_file *,off_t);
-
-#else
-#define BLKDEV_MAJOR_MAX 0
-#endif
-
extern void init_special_inode(struct inode *, umode_t, dev_t);
/* Invalid inode operations -- fs/bad_inode.c */
extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
-#ifdef CONFIG_BLOCK
-extern int revalidate_disk(struct gendisk *);
-extern int check_disk_change(struct block_device *);
-extern int __invalidate_device(struct block_device *, bool);
-#endif
unsigned long invalidate_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t end);
@@@ -2692,7 -2825,7 +2690,7 @@@ static inline errseq_t filemap_sample_w
/**
* file_sample_sb_err - sample the current errseq_t to test for later errors
- * @mapping: mapping to be sampled
+ * @file: file pointer to be sampled
*
* Grab the most current superblock-level errseq_t value for the given
* struct file.
@@@ -2988,6 -3121,10 +2986,6 @@@ static inline void remove_inode_hash(st
extern void inode_sb_list_add(struct inode *inode);
-#ifdef CONFIG_BLOCK
-extern int bdev_read_only(struct block_device *);
-#endif
-extern int set_blocksize(struct block_device *, int);
extern int sb_set_blocksize(struct super_block *, int);
extern int sb_min_blocksize(struct super_block *, int);
@@@ -3525,56 -3662,4 +3523,56 @@@ static inline int inode_drain_writes(st
return filemap_write_and_wait(inode->i_mapping);
}
+extern void __notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info);
+extern void __notify_sb_error(struct super_block *s, int error);
+extern void __notify_sb_EQDUOT(struct super_block *s);
+
+/**
+ * notify_sb: Post simple superblock notification.
+ * @s: The superblock the notification is about.
+ * @subtype: The type of notification.
+ * @info: WATCH_INFO_FLAG_* flags to be set in the record.
+ */
+static inline void notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_change_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb(s, subtype, info);
+#endif
+}
+
+/**
+ * notify_sb_error: Post superblock error notification.
+ * @s: The superblock the notification is about.
+ * @error: The error number to be recorded.
+ */
+static inline int notify_sb_error(struct super_block *s, int error)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_error(s, error);
+#endif
+ return error;
+}
+
+/**
+ * notify_sb_EDQUOT: Post superblock quota overrun notification.
+ * @s: The superblock the notification is about.
+ */
+static inline int notify_sb_EQDUOT(struct super_block *s)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_EQDUOT(s);
+#endif
+ return -EDQUOT;
+}
+
#endif /* _LINUX_FS_H */
diff --combined kernel/kallsyms.c
index 95cb74f73292,1c46a1f2e9f9..ad0646efe554
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@@ -24,7 -24,6 +24,7 @@@
#include <linux/slab.h>
#include <linux/filter.h>
#include <linux/ftrace.h>
+#include <linux/kprobes.h>
#include <linux/compiler.h>
/*
@@@ -438,7 -437,6 +438,7 @@@ struct kallsym_iter
loff_t pos_arch_end;
loff_t pos_mod_end;
loff_t pos_ftrace_mod_end;
+ loff_t pos_bpf_end;
unsigned long value;
unsigned int nameoff; /* If iterating in core kernel symbols. */
char type;
@@@ -482,11 -480,6 +482,11 @@@ static int get_ksymbol_mod(struct kalls
return 1;
}
+/*
+ * ftrace_mod_get_kallsym() may also get symbols for pages allocated for ftrace
+ * purposes. In that case "__builtin__ftrace" is used as a module name, even
+ * though "__builtin__ftrace" is not a module.
+ */
static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
{
int ret = ftrace_mod_get_kallsym(iter->pos - iter->pos_mod_end,
@@@ -503,33 -496,11 +503,33 @@@
static int get_ksymbol_bpf(struct kallsym_iter *iter)
{
+ int ret;
+
strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
iter->exported = 0;
- return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
- &iter->value, &iter->type,
- iter->name) < 0 ? 0 : 1;
+ ret = bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
+ &iter->value, &iter->type,
+ iter->name);
+ if (ret < 0) {
+ iter->pos_bpf_end = iter->pos;
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * This uses "__builtin__kprobes" as a module name for symbols for pages
+ * allocated for kprobes' purposes, even though "__builtin__kprobes" is not a
+ * module.
+ */
+static int get_ksymbol_kprobe(struct kallsym_iter *iter)
+{
+ strlcpy(iter->module_name, "__builtin__kprobes", MODULE_NAME_LEN);
+ iter->exported = 0;
+ return kprobe_get_kallsym(iter->pos - iter->pos_bpf_end,
+ &iter->value, &iter->type,
+ iter->name) < 0 ? 0 : 1;
}
/* Returns space to next name. */
@@@ -556,7 -527,6 +556,7 @@@ static void reset_iter(struct kallsym_i
iter->pos_arch_end = 0;
iter->pos_mod_end = 0;
iter->pos_ftrace_mod_end = 0;
+ iter->pos_bpf_end = 0;
}
}
@@@ -581,11 -551,7 +581,11 @@@ static int update_iter_mod(struct kalls
get_ksymbol_ftrace_mod(iter))
return 1;
- return get_ksymbol_bpf(iter);
+ if ((!iter->pos_bpf_end || iter->pos_bpf_end > pos) &&
+ get_ksymbol_bpf(iter))
+ return 1;
+
+ return get_ksymbol_kprobe(iter);
}
/* Returns false if pos at or past end of file. */
@@@ -738,7 -704,7 +738,7 @@@ const char *kdb_walk_kallsyms(loff_t *p
static const struct proc_ops kallsyms_proc_ops = {
.proc_open = kallsyms_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release_private,
};
diff --combined kernel/sched/psi.c
index 967732c0766c,6795170140a0..4c084d66746a
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@@ -190,6 -190,7 +190,6 @@@ static void group_init(struct psi_grou
INIT_DELAYED_WORK(&group->avgs_work, psi_avgs_work);
mutex_init(&group->avgs_lock);
/* Init trigger-related members */
- atomic_set(&group->poll_scheduled, 0);
mutex_init(&group->trigger_lock);
INIT_LIST_HEAD(&group->triggers);
memset(group->nr_triggers, 0, sizeof(group->nr_triggers));
@@@ -198,7 -199,7 +198,7 @@@
memset(group->polling_total, 0, sizeof(group->polling_total));
group->polling_next_update = ULLONG_MAX;
group->polling_until = 0;
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
void __init psi_init(void)
@@@ -546,38 -547,47 +546,38 @@@ static u64 update_triggers(struct psi_g
return now + group->poll_min_period;
}
-/*
- * Schedule polling if it's not already scheduled. It's safe to call even from
- * hotpath because even though kthread_queue_delayed_work takes worker->lock
- * spinlock that spinlock is never contended due to poll_scheduled atomic
- * preventing such competition.
- */
+/* Schedule polling if it's not already scheduled. */
static void psi_schedule_poll_work(struct psi_group *group, unsigned long delay)
{
- struct kthread_worker *kworker;
+ struct task_struct *task;
- /* Do not reschedule if already scheduled */
- if (atomic_cmpxchg(&group->poll_scheduled, 0, 1) != 0)
+ /*
+ * Do not reschedule if already scheduled.
+ * Possible race with a timer scheduled after this check but before
+ * mod_timer below can be tolerated because group->polling_next_update
+ * will keep updates on schedule.
+ */
+ if (timer_pending(&group->poll_timer))
return;
rcu_read_lock();
- kworker = rcu_dereference(group->poll_kworker);
+ task = rcu_dereference(group->poll_task);
/*
* kworker might be NULL in case psi_trigger_destroy races with
* psi_task_change (hotpath) which can't use locks
*/
- if (likely(kworker))
- kthread_queue_delayed_work(kworker, &group->poll_work, delay);
- else
- atomic_set(&group->poll_scheduled, 0);
+ if (likely(task))
+ mod_timer(&group->poll_timer, jiffies + delay);
rcu_read_unlock();
}
-static void psi_poll_work(struct kthread_work *work)
+static void psi_poll_work(struct psi_group *group)
{
- struct kthread_delayed_work *dwork;
- struct psi_group *group;
u32 changed_states;
u64 now;
- dwork = container_of(work, struct kthread_delayed_work, work);
- group = container_of(dwork, struct psi_group, poll_work);
-
- atomic_set(&group->poll_scheduled, 0);
-
mutex_lock(&group->trigger_lock);
now = sched_clock();
@@@ -613,32 -623,6 +613,32 @@@ out
mutex_unlock(&group->trigger_lock);
}
+static int psi_poll_worker(void *data)
+{
+ struct psi_group *group = (struct psi_group *)data;
+
+ sched_set_fifo_low(current);
+
+ while (true) {
+ wait_event_interruptible(group->poll_wait,
+ atomic_cmpxchg(&group->poll_wakeup, 1, 0) ||
+ kthread_should_stop());
+ if (kthread_should_stop())
+ break;
+
+ psi_poll_work(group);
+ }
+ return 0;
+}
+
+static void poll_timer_fn(struct timer_list *t)
+{
+ struct psi_group *group = from_timer(group, t, poll_timer);
+
+ atomic_set(&group->poll_wakeup, 1);
+ wake_up_interruptible(&group->poll_wait);
+}
+
static void record_times(struct psi_group_cpu *groupc, int cpu,
bool memstall_tick)
{
@@@ -1115,20 -1099,22 +1115,20 @@@ struct psi_trigger *psi_trigger_create(
mutex_lock(&group->trigger_lock);
- if (!rcu_access_pointer(group->poll_kworker)) {
- struct sched_param param = {
- .sched_priority = 1,
- };
- struct kthread_worker *kworker;
+ if (!rcu_access_pointer(group->poll_task)) {
+ struct task_struct *task;
- kworker = kthread_create_worker(0, "psimon");
- if (IS_ERR(kworker)) {
+ task = kthread_create(psi_poll_worker, group, "psimon");
+ if (IS_ERR(task)) {
kfree(t);
mutex_unlock(&group->trigger_lock);
- return ERR_CAST(kworker);
+ return ERR_CAST(task);
}
- sched_setscheduler_nocheck(kworker->task, SCHED_FIFO, ¶m);
- kthread_init_delayed_work(&group->poll_work,
- psi_poll_work);
- rcu_assign_pointer(group->poll_kworker, kworker);
+ atomic_set(&group->poll_wakeup, 0);
+ init_waitqueue_head(&group->poll_wait);
+ wake_up_process(task);
+ timer_setup(&group->poll_timer, poll_timer_fn, 0);
+ rcu_assign_pointer(group->poll_task, task);
}
list_add(&t->node, &group->triggers);
@@@ -1146,7 -1132,7 +1146,7 @@@ static void psi_trigger_destroy(struct
{
struct psi_trigger *t = container_of(ref, struct psi_trigger, refcount);
struct psi_group *group = t->group;
- struct kthread_worker *kworker_to_destroy = NULL;
+ struct task_struct *task_to_destroy = NULL;
if (static_branch_likely(&psi_disabled))
return;
@@@ -1172,13 -1158,13 +1172,13 @@@
period = min(period, div_u64(tmp->win.size,
UPDATES_PER_WINDOW));
group->poll_min_period = period;
- /* Destroy poll_kworker when the last trigger is destroyed */
+ /* Destroy poll_task when the last trigger is destroyed */
if (group->poll_states == 0) {
group->polling_until = 0;
- kworker_to_destroy = rcu_dereference_protected(
- group->poll_kworker,
+ task_to_destroy = rcu_dereference_protected(
+ group->poll_task,
lockdep_is_held(&group->trigger_lock));
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
}
@@@ -1186,23 -1172,25 +1186,23 @@@
/*
* Wait for both *trigger_ptr from psi_trigger_replace and
- * poll_kworker RCUs to complete their read-side critical sections
- * before destroying the trigger and optionally the poll_kworker
+ * poll_task RCUs to complete their read-side critical sections
+ * before destroying the trigger and optionally the poll_task
*/
synchronize_rcu();
/*
* Destroy the kworker after releasing trigger_lock to prevent a
* deadlock while waiting for psi_poll_work to acquire trigger_lock
*/
- if (kworker_to_destroy) {
+ if (task_to_destroy) {
/*
* After the RCU grace period has expired, the worker
- * can no longer be found through group->poll_kworker.
+ * can no longer be found through group->poll_task.
* But it might have been already scheduled before
* that - deschedule it cleanly before destroying it.
*/
- kthread_cancel_delayed_work_sync(&group->poll_work);
- atomic_set(&group->poll_scheduled, 0);
-
- kthread_destroy_worker(kworker_to_destroy);
+ del_timer_sync(&group->poll_timer);
+ kthread_stop(task_to_destroy);
}
kfree(t);
}
@@@ -1317,7 -1305,7 +1317,7 @@@ static int psi_fop_release(struct inod
static const struct proc_ops psi_io_proc_ops = {
.proc_open = psi_io_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_io_write,
.proc_poll = psi_fop_poll,
@@@ -1326,7 -1314,7 +1326,7 @@@
static const struct proc_ops psi_memory_proc_ops = {
.proc_open = psi_memory_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_memory_write,
.proc_poll = psi_fop_poll,
@@@ -1335,7 -1323,7 +1335,7 @@@
static const struct proc_ops psi_cpu_proc_ops = {
.proc_open = psi_cpu_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_cpu_write,
.proc_poll = psi_fop_poll,
diff --combined kernel/trace/ftrace.c
index 62e9b93d5fee,6a645f2ebf47..a3093a84bae3
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@@ -2388,14 -2388,6 +2388,14 @@@ struct ftrace_ops direct_ops =
.flags = FTRACE_OPS_FL_IPMODIFY | FTRACE_OPS_FL_RECURSION_SAFE
| FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS
| FTRACE_OPS_FL_PERMANENT,
+ /*
+ * By declaring the main trampoline as this trampoline
+ * it will never have one allocated for it. Allocated
+ * trampolines should not call direct functions.
+ * The direct_ops should only be called by the builtin
+ * ftrace_regs_caller trampoline.
+ */
+ .trampoline = FTRACE_REGS_ADDR,
};
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
@@@ -2772,50 -2764,6 +2772,50 @@@ void __weak arch_ftrace_trampoline_free
{
}
+/* List of trace_ops that have allocated trampolines */
+static LIST_HEAD(ftrace_ops_trampoline_list);
+
+static void ftrace_add_trampoline_to_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_add_rcu(&ops->list, &ftrace_ops_trampoline_list);
+}
+
+static void ftrace_remove_trampoline_from_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_del_rcu(&ops->list);
+}
+
+/*
+ * "__builtin__ftrace" is used as a module name in /proc/kallsyms for symbols
+ * for pages allocated for ftrace purposes, even though "__builtin__ftrace" is
+ * not a module.
+ */
+#define FTRACE_TRAMPOLINE_MOD "__builtin__ftrace"
+#define FTRACE_TRAMPOLINE_SYM "ftrace_trampoline"
+
+static void ftrace_trampoline_free(struct ftrace_ops *ops)
+{
+ if (ops && (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP) &&
+ ops->trampoline) {
+ /*
+ * Record the text poke event before the ksymbol unregister
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline,
+ (void *)ops->trampoline,
+ ops->trampoline_size, NULL, 0);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size,
+ true, FTRACE_TRAMPOLINE_SYM);
+ /* Remove from kallsyms after the perf events */
+ ftrace_remove_trampoline_from_kallsyms(ops);
+ }
+
+ arch_ftrace_trampoline_free(ops);
+}
+
static void ftrace_startup_enable(int command)
{
if (saved_ftrace_func != ftrace_trace_function) {
@@@ -2986,7 -2934,7 +2986,7 @@@ int ftrace_shutdown(struct ftrace_ops *
synchronize_rcu_tasks();
free_ops:
- arch_ftrace_trampoline_free(ops);
+ ftrace_trampoline_free(ops);
}
return 0;
@@@ -5613,21 -5561,21 +5613,21 @@@ int ftrace_regex_release(struct inode *
static const struct file_operations ftrace_avail_fops = {
.open = ftrace_avail_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_enabled_fops = {
.open = ftrace_enabled_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_filter_fops = {
.open = ftrace_filter_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_filter_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -5635,7 -5583,7 +5635,7 @@@
static const struct file_operations ftrace_notrace_fops = {
.open = ftrace_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_notrace_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -6033,7 -5981,7 +6033,7 @@@ ftrace_graph_write(struct file *file, c
static const struct file_operations ftrace_graph_fops = {
.open = ftrace_graph_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6041,7 -5989,7 +6041,7 @@@
static const struct file_operations ftrace_graph_notrace_fops = {
.open = ftrace_graph_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6230,27 -6178,6 +6230,27 @@@ struct ftrace_mod_map
unsigned int num_funcs;
};
+static int ftrace_get_trampoline_kallsym(unsigned int symnum,
+ unsigned long *value, char *type,
+ char *name, char *module_name,
+ int *exported)
+{
+ struct ftrace_ops *op;
+
+ list_for_each_entry_rcu(op, &ftrace_ops_trampoline_list, list) {
+ if (!op->trampoline || symnum--)
+ continue;
+ *value = op->trampoline;
+ *type = 't';
+ strlcpy(name, FTRACE_TRAMPOLINE_SYM, KSYM_NAME_LEN);
+ strlcpy(module_name, FTRACE_TRAMPOLINE_MOD, MODULE_NAME_LEN);
+ *exported = 0;
+ return 0;
+ }
+
+ return -ERANGE;
+}
+
#ifdef CONFIG_MODULES
#define next_to_ftrace_page(p) container_of(p, struct ftrace_page, next)
@@@ -6587,7 -6514,6 +6587,7 @@@ int ftrace_mod_get_kallsym(unsigned in
{
struct ftrace_mod_map *mod_map;
struct ftrace_mod_func *mod_func;
+ int ret;
preempt_disable();
list_for_each_entry_rcu(mod_map, &ftrace_mod_maps, list) {
@@@ -6614,10 -6540,8 +6614,10 @@@
WARN_ON(1);
break;
}
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
preempt_enable();
- return -ERANGE;
+ return ret;
}
#else
@@@ -6629,18 -6553,6 +6629,18 @@@ allocate_ftrace_mod_map(struct module *
{
return NULL;
}
+int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name, char *module_name,
+ int *exported)
+{
+ int ret;
+
+ preempt_disable();
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
+ preempt_enable();
+ return ret;
+}
#endif /* CONFIG_MODULES */
struct ftrace_init_func {
@@@ -6821,24 -6733,7 +6821,24 @@@ void __weak arch_ftrace_update_trampoli
static void ftrace_update_trampoline(struct ftrace_ops *ops)
{
+ unsigned long trampoline = ops->trampoline;
+
arch_ftrace_update_trampoline(ops);
+ if (ops->trampoline && ops->trampoline != trampoline &&
+ (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP)) {
+ /* Add to kallsyms before the perf events */
+ ftrace_add_trampoline_to_kallsyms(ops);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size, false,
+ FTRACE_TRAMPOLINE_SYM);
+ /*
+ * Record the perf text poke event after the ksymbol register
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline, NULL, 0,
+ (void *)ops->trampoline,
+ ops->trampoline_size);
+ }
}
void ftrace_init_trace_array(struct trace_array *tr)
@@@ -7411,7 -7306,7 +7411,7 @@@ ftrace_pid_release(struct inode *inode
static const struct file_operations ftrace_pid_fops = {
.open = ftrace_pid_open,
.write = ftrace_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
@@@ -7419,7 -7314,7 +7419,7 @@@
static const struct file_operations ftrace_no_pid_fops = {
.open = ftrace_no_pid_open,
.write = ftrace_no_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
diff --combined kernel/trace/trace.c
index 4aab712f9567,36dbb58680fc..5aa5c01e2fed
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@@ -2003,6 -2003,7 +2003,6 @@@ static void tracing_reset_cpu(struct ar
void tracing_reset_online_cpus(struct array_buffer *buf)
{
struct trace_buffer *buffer = buf->buffer;
- int cpu;
if (!buffer)
return;
@@@ -2014,7 -2015,8 +2014,7 @@@
buf->time_start = buffer_ftrace_now(buf, buf->cpu);
- for_each_online_cpu(cpu)
- ring_buffer_reset_cpu(buffer, cpu);
+ ring_buffer_reset_online_cpus(buffer);
ring_buffer_record_enable(buffer);
}
@@@ -3344,16 -3346,12 +3344,16 @@@ int trace_array_printk(struct trace_arr
int ret;
va_list ap;
- if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
- return 0;
-
if (!tr)
return -ENOENT;
+ /* This is only allowed for created instances */
+ if (tr == &global_trace)
+ return 0;
+
+ if (!(tr->trace_flags & TRACE_ITER_PRINTK))
+ return 0;
+
va_start(ap, fmt);
ret = trace_array_vprintk(tr, ip, fmt, ap);
va_end(ap);
@@@ -4613,7 -4611,7 +4613,7 @@@ loff_t tracing_lseek(struct file *file
static const struct file_operations tracing_fops = {
.open = tracing_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_write_stub,
.llseek = tracing_lseek,
.release = tracing_release,
@@@ -4621,7 -4619,7 +4621,7 @@@
static const struct file_operations show_traces_fops = {
.open = show_traces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = show_traces_release,
};
@@@ -4959,7 -4957,7 +4959,7 @@@ static int tracing_trace_options_open(s
static const struct file_operations tracing_iter_fops = {
.open = tracing_trace_options_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_trace_options_write,
@@@ -5299,7 -5297,7 +5299,7 @@@ static int tracing_saved_tgids_open(str
static const struct file_operations tracing_saved_tgids_fops = {
.open = tracing_saved_tgids_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5378,7 -5376,7 +5378,7 @@@ static int tracing_saved_cmdlines_open(
static const struct file_operations tracing_saved_cmdlines_fops = {
.open = tracing_saved_cmdlines_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5544,7 -5542,7 +5544,7 @@@ static int tracing_eval_map_open(struc
static const struct file_operations tracing_eval_map_fops = {
.open = tracing_eval_map_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5889,7 -5887,7 +5889,7 @@@ int tracing_set_tracer(struct trace_arr
}
/* If trace pipe files are being read, we can't change the tracer */
- if (tr->current_trace->ref) {
+ if (tr->trace_ref) {
ret = -EBUSY;
goto out;
}
@@@ -6105,7 -6103,7 +6105,7 @@@ static int tracing_open_pipe(struct ino
nonseekable_open(inode, filp);
- tr->current_trace->ref++;
+ tr->trace_ref++;
out:
mutex_unlock(&trace_types_lock);
return ret;
@@@ -6124,7 -6122,7 +6124,7 @@@ static int tracing_release_pipe(struct
mutex_lock(&trace_types_lock);
- tr->current_trace->ref--;
+ tr->trace_ref--;
if (iter->trace->pipe_close)
iter->trace->pipe_close(iter);
@@@ -7121,7 -7119,7 +7121,7 @@@ static const struct file_operations tra
static const struct file_operations trace_clock_fops = {
.open = tracing_clock_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_clock_write,
@@@ -7129,7 -7127,7 +7129,7 @@@
static const struct file_operations trace_time_stamp_mode_fops = {
.open = tracing_time_stamp_mode_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
};
@@@ -7137,7 -7135,7 +7137,7 @@@
#ifdef CONFIG_TRACER_SNAPSHOT
static const struct file_operations snapshot_fops = {
.open = tracing_snapshot_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_snapshot_write,
.llseek = tracing_lseek,
.release = tracing_snapshot_release,
@@@ -7393,7 -7391,7 +7393,7 @@@ static int tracing_err_log_release(stru
static const struct file_operations tracing_err_log_fops = {
.open = tracing_err_log_open,
.write = tracing_err_log_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_err_log_release,
};
@@@ -7426,7 -7424,7 +7426,7 @@@ static int tracing_buffers_open(struct
filp->private_data = info;
- tr->current_trace->ref++;
+ tr->trace_ref++;
mutex_unlock(&trace_types_lock);
@@@ -7527,7 -7525,7 +7527,7 @@@ static int tracing_buffers_release(stru
mutex_lock(&trace_types_lock);
- iter->tr->current_trace->ref--;
+ iter->tr->trace_ref--;
__trace_array_put(iter->tr);
@@@ -8735,7 -8733,7 +8735,7 @@@ static int __remove_instance(struct tra
int i;
/* Reference counter for a newly created trace array = 1. */
- if (tr->ref > 1 || (tr->current_trace && tr->current_trace->ref))
+ if (tr->ref > 1 || (tr->current_trace && tr->trace_ref))
return -EBUSY;
list_del(&tr->list);
diff --combined mm/shmem.c
index 66024b1884c1,f019ff500844..d08fa0f4eb9b
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@@ -1673,12 -1673,6 +1673,12 @@@ static int shmem_swapin_page(struct ino
}
wait_on_page_writeback(page);
+ /*
+ * Some architectures may have to restore extra metadata to the
+ * physical page after reading from swap.
+ */
+ arch_swap_restore(swap, page);
+
if (shmem_should_replace_page(page, gfp)) {
error = shmem_replace_page(&page, gfp, info, index);
if (error)
@@@ -2212,9 -2206,6 +2212,9 @@@ static int shmem_mmap(struct file *file
vma->vm_flags &= ~(VM_MAYWRITE);
}
+ /* arm64 - allow memory tagging on RAM-based files */
+ vma->vm_flags |= VM_MTE_ALLOWED;
+
file_accessed(file);
vma->vm_ops = &shmem_vm_ops;
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
@@@ -3765,7 -3756,6 +3765,6 @@@ static const struct file_operations shm
.read_iter = shmem_file_read_iter,
.write_iter = generic_file_write_iter,
.fsync = noop_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = shmem_fallocate,
#endif
diff --combined mm/swapfile.c
index 1d9fb474dada,2e50f52a14c7..7f1587b223ed
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@@ -716,7 -716,6 +716,7 @@@ static void swap_range_free(struct swap
else
swap_slot_free_notify = NULL;
while (offset <= end) {
+ arch_swap_invalidate_page(si->type, offset);
frontswap_invalidate_page(si->type, offset);
if (swap_slot_free_notify)
swap_slot_free_notify(si->bdev, offset);
@@@ -2676,7 -2675,6 +2676,7 @@@ SYSCALL_DEFINE1(swapoff, const char __u
frontswap_map = frontswap_map_get(p);
spin_unlock(&p->lock);
spin_unlock(&swap_lock);
+ arch_swap_invalidate_area(p->type);
frontswap_invalidate_area(p->type);
frontswap_map_set(p, NULL);
mutex_unlock(&swapon_mutex);
@@@ -2837,7 -2835,7 +2837,7 @@@ static int swaps_open(struct inode *ino
static const struct proc_ops swaps_proc_ops = {
.proc_flags = PROC_ENTRY_PERMANENT,
.proc_open = swaps_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = swaps_poll,
@@@ -2931,7 -2929,7 +2931,7 @@@ static int claim_swapfile(struct swap_i
* write only restriction. Hence zoned block devices are not
* suitable for swapping. Disallow them here.
*/
- if (blk_queue_is_zoned(p->bdev->bd_queue))
+ if (blk_queue_is_zoned(p->bdev->bd_disk->queue))
return -EINVAL;
p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
diff --combined net/bluetooth/6lowpan.c
index cff4944d5b66,573ef0c80521..7c492105b8c8
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@@ -50,7 -50,6 +50,7 @@@ static bool enable_6lowpan
/* We are listening incoming connections via this channel
*/
static struct l2cap_chan *listen_chan;
+static DEFINE_MUTEX(set_lock);
struct lowpan_peer {
struct list_head list;
@@@ -1079,14 -1078,12 +1079,14 @@@ static void do_enable_set(struct work_s
enable_6lowpan = set_enable->flag;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
}
listen_chan = bt_6lowpan_listen();
+ mutex_unlock(&set_lock);
kfree(set_enable);
}
@@@ -1138,13 -1135,11 +1138,13 @@@ static ssize_t lowpan_control_write(str
if (ret == -EINVAL)
return ret;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
listen_chan = NULL;
}
+ mutex_unlock(&set_lock);
if (conn) {
struct lowpan_peer *peer;
@@@ -1210,7 -1205,7 +1210,7 @@@ static int lowpan_control_open(struct i
static const struct file_operations lowpan_control_fops = {
.open = lowpan_control_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = lowpan_control_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined net/ipv4/netfilter/ipt_CLUSTERIP.c
index a8b980ad11d4,67472389c9c3..40af4bbf4519
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@@ -3,7 -3,7 +3,7 @@@
* (C) 2003-2004 by Harald Welte <laforge(a)netfilter.org>
* based on ideas of Fabio Olive Leite <olive(a)unixforge.org>
*
- * Development of this code funded by SuSE Linux AG, http://www.suse.com/
+ * Development of this code funded by SuSE Linux AG, https://www.suse.com/
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
@@@ -806,7 -806,7 +806,7 @@@ static ssize_t clusterip_proc_write(str
static const struct proc_ops clusterip_proc_ops = {
.proc_open = clusterip_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = clusterip_proc_write,
.proc_lseek = seq_lseek,
.proc_release = clusterip_proc_release,
--
LinuxNextTracking
1
0
Name of failed tests
====================
master
------
* checkpatch ./net/batman-adv/hard-interface.c
* checkpatch ./net/batman-adv/hard-interface.h
* checkpatch ./net/batman-adv/multicast.c
* checkpatch ./net/batman-adv/soft-interface.c
* checkpatch ./net/batman-adv/sysfs.c
Output of different failed tests
================================
master: checkpatch ./net/batman-adv/hard-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#566: FILE: ./net/batman-adv/hard-interface.c:566:
+ * slave interfaces)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#679: FILE: ./net/batman-adv/hard-interface.c:679:
+ * batadv_master_del_slave() - remove hard_iface from the current master iface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#681: FILE: ./net/batman-adv/hard-interface.c:681:
+ * @master: the master from which slave has to be removed
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#683: FILE: ./net/batman-adv/hard-interface.c:683:
+ * Invoke ndo_del_slave on master passing slave as argument. In this way the
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#684: FILE: ./net/batman-adv/hard-interface.c:684:
+ * slave is free'd and the master can correctly change its internal state.
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#688: FILE: ./net/batman-adv/hard-interface.c:688:
+static int batadv_master_del_slave(struct batadv_hard_iface *slave,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#697: FILE: ./net/batman-adv/hard-interface.c:697:
+ if (master->netdev_ops->ndo_del_slave)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#698: FILE: ./net/batman-adv/hard-interface.c:698:
+ ret = master->netdev_ops->ndo_del_slave(master, slave->net_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#750: FILE: ./net/batman-adv/hard-interface.c:750:
+ ret = batadv_master_del_slave(hard_iface, master);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#847: FILE: ./net/batman-adv/hard-interface.c:847:
+ * slave interfaces
total: 0 errors, 0 warnings, 13 checks, 1098 lines checked
master: checkpatch ./net/batman-adv/hard-interface.h
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#26: FILE: ./net/batman-adv/hard-interface.h:26:
+ * @BATADV_IF_NOT_IN_USE: interface is not used as slave interface of a
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#48: FILE: ./net/batman-adv/hard-interface.h:48:
+ * added as slave interface of a batman-adv soft interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#77: FILE: ./net/batman-adv/hard-interface.h:77:
+ * enum batadv_hard_if_cleanup - Cleanup modi for soft_iface after slave removal
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#86: FILE: ./net/batman-adv/hard-interface.h:86:
+ * @BATADV_IF_CLEANUP_AUTO: Delete soft-interface after last slave was
total: 0 errors, 0 warnings, 4 checks, 144 lines checked
master: checkpatch ./net/batman-adv/multicast.c
-----------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#575: FILE: ./net/batman-adv/multicast.c:575:
+ * @dev: a bridge slave whose bridge to collect multicast addresses from
total: 0 errors, 0 warnings, 1 checks, 2430 lines checked
master: checkpatch ./net/batman-adv/soft-interface.c
----------------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#873: FILE: ./net/batman-adv/soft-interface.c:873:
+ * batadv_softif_slave_add() - Add a slave interface to a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#875: FILE: ./net/batman-adv/soft-interface.c:875:
+ * @slave_dev: net_device which should become the slave interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#880: FILE: ./net/batman-adv/soft-interface.c:880:
+static int batadv_softif_slave_add(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#881: FILE: ./net/batman-adv/soft-interface.c:881:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#888: FILE: ./net/batman-adv/soft-interface.c:888:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#901: FILE: ./net/batman-adv/soft-interface.c:901:
+ * batadv_softif_slave_del() - Delete a slave iface from a batadv_soft_interface
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#907: FILE: ./net/batman-adv/soft-interface.c:907:
+static int batadv_softif_slave_del(struct net_device *dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#908: FILE: ./net/batman-adv/soft-interface.c:908:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#913: FILE: ./net/batman-adv/soft-interface.c:913:
+ hard_iface = batadv_hardif_get_by_netdev(slave_dev);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#939: FILE: ./net/batman-adv/soft-interface.c:939:
+ .ndo_add_slave = batadv_softif_slave_add,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#940: FILE: ./net/batman-adv/soft-interface.c:940:
+ .ndo_del_slave = batadv_softif_slave_del,
total: 0 errors, 0 warnings, 15 checks, 1180 lines checked
master: checkpatch ./net/batman-adv/sysfs.c
-------------------------------------------
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#378: FILE: ./net/batman-adv/sysfs.c:378:
+ struct net_device *slave_dev,
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#409: FILE: ./net/batman-adv/sysfs.c:409:
+ if (slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#410: FILE: ./net/batman-adv/sysfs.c:410:
+ snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#425: FILE: ./net/batman-adv/sysfs.c:425:
+ struct net_device *slave_dev)
CHECK: Use of 'slave' is deprecated, please '(secondary|target|...)', instead.
#429: FILE: ./net/batman-adv/sysfs.c:429:
+ ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
total: 0 errors, 0 warnings, 5 checks, 1272 lines checked
Statistics
==========
master
------
Failed tests: 5
Started build tests: 115
Tested Linux versions: 31
Tested configs: 103
maint
-----
Failed tests: 0
Started build tests: 118
Tested Linux versions: 31
Tested configs: 105
1
0
[linux-next] LinuxNextTracking branch, master, updated. next-20200715
by batmanï¼ open-mesh.org 15 Jul '20
by batmanï¼ open-mesh.org 15 Jul '20
15 Jul '20
The following commit has been merged in the master branch:
commit ed84a8f24b55cb7f74219dd2c7b587fc68f786f7
Merge: 859b877a2b16b2f575fdc95175ac3f4c3f8ef98f 2750e3608b796cd913564387ffd40f276e50ad21
Author: Stephen Rothwell <sfr(a)canb.auug.org.au>
Date: Wed Jul 15 16:27:29 2020 +1000
Merge remote-tracking branch 'set_fs/set_fs-rw'
# Conflicts:
# drivers/acpi/battery.c
# fs/btrfs/file.c
diff --combined Documentation/process/clang-format.rst
index 82676e5a7c6e,7f04493cba4f..57186ae91365
--- a/Documentation/process/clang-format.rst
+++ b/Documentation/process/clang-format.rst
@@@ -32,7 -32,7 +32,7 @@@ Linux distributions for a long time. Se
your repositories. Otherwise, you can either download pre-built
LLVM/clang binaries or build the source code from:
- http://releases.llvm.org/download.html
+ https://releases.llvm.org/download.html
See more information about the tool at:
@@@ -136,7 -136,7 +136,7 @@@ In particular, some very common ones yo
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
@@@ -147,7 -147,7 +147,7 @@@
static const struct file_operations uprobe_events_ops = {
.owner = THIS_MODULE,
.open = probes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
.write = probes_write,
diff --combined arch/arm/mm/alignment.c
index f4bfc1cac91a,412cab88402a..8666935340db
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@@ -164,7 -164,7 +164,7 @@@ static ssize_t alignment_proc_write(str
static const struct proc_ops alignment_proc_ops = {
.proc_open = alignment_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = alignment_proc_write,
@@@ -799,7 -799,7 +799,7 @@@ static int alignment_get_thumb(struct p
static int
do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
{
- union offset_union uninitialized_var(offset);
+ union offset_union offset;
unsigned long instrptr;
int (*handler)(unsigned long addr, u32 instr, struct pt_regs *regs);
unsigned int type;
diff --combined arch/powerpc/mm/ptdump/hashpagetable.c
index 5b8bd34cd3a1,94a6124f9740..930d9cfd6316
--- a/arch/powerpc/mm/ptdump/hashpagetable.c
+++ b/arch/powerpc/mm/ptdump/hashpagetable.c
@@@ -258,7 -258,7 +258,7 @@@ static int pseries_find(unsigned long e
for (i = 0; i < HPTES_PER_GROUP; i += 4, hpte_group += 4) {
lpar_rc = plpar_pte_read_4(0, hpte_group, (void *)ptes);
- if (lpar_rc != H_SUCCESS)
+ if (lpar_rc)
continue;
for (j = 0; j < 4; j++) {
if (HPTE_V_COMPARE(ptes[j].v, want_v) &&
@@@ -533,7 -533,7 +533,7 @@@ static int ptdump_open(struct inode *in
static const struct file_operations ptdump_fops = {
.open = ptdump_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined arch/um/kernel/process.c
index 26b5e243d3fc,f3e4bd48f6d5..77caa0202fc3
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@@ -152,7 -152,7 +152,7 @@@ void fork_handler(void
userspace(¤t->thread.regs.regs, current_thread_info()->aux_fp_regs);
}
-int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
+int copy_thread(unsigned long clone_flags, unsigned long sp,
unsigned long arg, struct task_struct * p, unsigned long tls)
{
void (*handler)(void);
@@@ -312,7 -312,7 +312,7 @@@ static ssize_t sysemu_proc_write(struc
static const struct proc_ops sysemu_proc_ops = {
.proc_open = sysemu_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = sysemu_proc_write,
diff --combined arch/x86/mm/pat/set_memory.c
index d1b2a889f035,95b12dd5bf0e..355de93199ee
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@@ -135,7 -135,7 +135,7 @@@ static inline void cpa_inc_2m_checked(v
static inline void cpa_inc_4k_install(void)
{
- cpa_4k_install++;
+ data_race(cpa_4k_install++);
}
static inline void cpa_inc_lp_sameprot(int level)
@@@ -173,7 -173,7 +173,7 @@@ static int cpastats_open(struct inode *
static const struct file_operations cpastats_fops = {
.open = cpastats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined block/blk-mq-debugfs.c
index 3f09bcb8a6fd,4e427fc88a26..5c8333d1ceed
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@@ -404,7 -404,8 +404,7 @@@ static bool hctx_show_busy_rq(struct re
const struct show_busy_params *params = data;
if (rq->mq_hctx == params->hctx)
- __blk_mq_debugfs_rq_show(params->m,
- list_entry_rq(&rq->queuelist));
+ __blk_mq_debugfs_rq_show(params->m, rq);
return true;
}
@@@ -772,7 -773,7 +772,7 @@@ static int blk_mq_debugfs_release(struc
static const struct file_operations blk_mq_debugfs_fops = {
.open = blk_mq_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = blk_mq_debugfs_write,
.llseek = seq_lseek,
.release = blk_mq_debugfs_release,
@@@ -826,6 -827,9 +826,6 @@@ void blk_mq_debugfs_register(struct req
struct blk_mq_hw_ctx *hctx;
int i;
- q->debugfs_dir = debugfs_create_dir(kobject_name(q->kobj.parent),
- blk_debugfs_root);
-
debugfs_create_files(q->debugfs_dir, q, blk_mq_debugfs_queue_attrs);
/*
@@@ -856,7 -860,9 +856,7 @@@
void blk_mq_debugfs_unregister(struct request_queue *q)
{
- debugfs_remove_recursive(q->debugfs_dir);
q->sched_debugfs_dir = NULL;
- q->debugfs_dir = NULL;
}
static void blk_mq_debugfs_register_ctx(struct blk_mq_hw_ctx *hctx,
diff --combined drivers/block/nbd.c
index 3ff4054d6834,4c54d366afde..25208ff7166e
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@@ -784,7 -784,6 +784,7 @@@ static void recv_work(struct work_struc
struct nbd_device *nbd = args->nbd;
struct nbd_config *config = nbd->config;
struct nbd_cmd *cmd;
+ struct request *rq;
while (1) {
cmd = nbd_read_stat(nbd, args->index);
@@@ -797,9 -796,7 +797,9 @@@
break;
}
- blk_mq_complete_request(blk_mq_rq_from_pdu(cmd));
+ rq = blk_mq_rq_from_pdu(cmd);
+ if (likely(!blk_should_fake_timeout(rq->q)))
+ blk_mq_complete_request(rq);
}
atomic_dec(&config->recv_threads);
wake_up(&config->recv_wq);
@@@ -1547,7 -1544,7 +1547,7 @@@ static int nbd_dbg_tasks_open(struct in
static const struct file_operations nbd_dbg_tasks_ops = {
.open = nbd_dbg_tasks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1582,7 -1579,7 +1582,7 @@@ static int nbd_dbg_flags_open(struct in
static const struct file_operations nbd_dbg_flags_ops = {
.open = nbd_dbg_flags_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/block/pktcdvd.c
index 4becc1efe775,50c6d6eacb59..c81f637141c0
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@@ -36,7 -36,7 +36,7 @@@
* block device, assembling the pieces to full packets and queuing them to the
* packet I/O scheduler.
*
- * At the top layer there is a custom make_request_fn function that forwards
+ * At the top layer there is a custom ->submit_bio function that forwards
* read requests directly to the iosched queue and puts write requests in the
* unaligned write queue. A kernel thread performs the necessary read
* gathering to convert the unaligned writes to aligned writes and then feeds
@@@ -464,7 -464,7 +464,7 @@@ static int pkt_debugfs_fops_open(struc
static const struct file_operations debug_fops = {
.open = pkt_debugfs_fops_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -913,7 -913,7 +913,7 @@@ static void pkt_iosched_process_queue(s
}
atomic_inc(&pd->cdrw.pending_bios);
- generic_make_request(bio);
+ submit_bio_noacct(bio);
}
}
@@@ -2428,15 -2428,15 +2428,15 @@@ static void pkt_make_request_write(stru
}
}
-static blk_qc_t pkt_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t pkt_submit_bio(struct bio *bio)
{
struct pktcdvd_device *pd;
char b[BDEVNAME_SIZE];
struct bio *split;
- blk_queue_split(q, &bio);
+ blk_queue_split(&bio);
- pd = q->queuedata;
+ pd = bio->bi_disk->queue->queuedata;
if (!pd) {
pr_err("%s incorrect request queue\n", bio_devname(bio, b));
goto end_io;
@@@ -2480,7 -2480,7 +2480,7 @@@
split = bio;
}
- pkt_make_request_write(q, split);
+ pkt_make_request_write(bio->bi_disk->queue, split);
} while (split != bio);
return BLK_QC_T_NONE;
@@@ -2685,7 -2685,6 +2685,7 @@@ static char *pkt_devnode(struct gendis
static const struct block_device_operations pktcdvd_ops = {
.owner = THIS_MODULE,
+ .submit_bio = pkt_submit_bio,
.open = pkt_open,
.release = pkt_close,
.ioctl = pkt_ioctl,
@@@ -2750,7 -2749,7 +2750,7 @@@ static int pkt_setup_dev(dev_t dev, dev
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
disk->private_data = pd;
- disk->queue = blk_alloc_queue(pkt_make_request, NUMA_NO_NODE);
+ disk->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!disk->queue)
goto out_mem2;
diff --combined drivers/block/rsxx/core.c
index 7e261224ff10,1adfd0f273b4..e631749e14ca
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@@ -209,7 -209,7 +209,7 @@@ static const struct file_operations deb
static const struct file_operations debugfs_stats_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -217,7 -217,7 +217,7 @@@
static const struct file_operations debugfs_pci_regs_fops = {
.owner = THIS_MODULE,
.open = rsxx_attr_pci_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -562,15 -562,13 +562,15 @@@ static int rsxx_eeh_frozen(struct pci_d
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev, STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev, COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
return 0;
@@@ -627,7 -625,7 +627,7 @@@ static int rsxx_eeh_fifo_flush_poll(str
}
static pci_ers_result_t rsxx_error_detected(struct pci_dev *dev,
- enum pci_channel_state error)
+ pci_channel_state_t error)
{
int st;
@@@ -713,15 -711,15 +713,15 @@@ static pci_ers_result_t rsxx_slot_reset
failed_hw_buffers_init:
for (i = 0; i < card->n_targets; i++) {
if (card->ctrl[i].status.buf)
- pci_free_consistent(card->dev,
- STATUS_BUFFER_SIZE8,
- card->ctrl[i].status.buf,
- card->ctrl[i].status.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ STATUS_BUFFER_SIZE8,
+ card->ctrl[i].status.buf,
+ card->ctrl[i].status.dma_addr);
if (card->ctrl[i].cmd.buf)
- pci_free_consistent(card->dev,
- COMMAND_BUFFER_SIZE8,
- card->ctrl[i].cmd.buf,
- card->ctrl[i].cmd.dma_addr);
+ dma_free_coherent(&card->dev->dev,
+ COMMAND_BUFFER_SIZE8,
+ card->ctrl[i].cmd.buf,
+ card->ctrl[i].cmd.dma_addr);
}
failed_hw_setup:
rsxx_eeh_failure(dev);
diff --combined drivers/crypto/hisilicon/qm.c
index 6527c53b073f,a5c3e21e0fe6..b594dc72807c
--- a/drivers/crypto/hisilicon/qm.c
+++ b/drivers/crypto/hisilicon/qm.c
@@@ -1054,7 -1054,7 +1054,7 @@@ static int qm_regs_open(struct inode *i
static const struct file_operations qm_regs_fops = {
.owner = THIS_MODULE,
.open = qm_regs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.release = single_release,
};
@@@ -1064,10 -1064,19 +1064,10 @@@ static ssize_t qm_cmd_read(struct file
char buf[QM_DBG_READ_LEN];
int len;
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
-
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n",
- "Please echo help to cmd to get help information");
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n",
+ "Please echo help to cmd to get help information");
- if (copy_to_user(buffer, buf, len))
- return -EFAULT;
-
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static void *qm_ctx_alloc(struct hisi_qm *qm, size_t ctx_size,
@@@ -1732,7 -1741,7 +1732,7 @@@ void hisi_qm_release_qp(struct hisi_qp
}
EXPORT_SYMBOL_GPL(hisi_qm_release_qp);
-static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, int pasid)
+static int qm_qp_ctx_cfg(struct hisi_qp *qp, int qp_id, u32 pasid)
{
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
@@@ -1804,7 -1813,7 +1804,7 @@@ static int qm_start_qp_nolock(struct hi
struct hisi_qm *qm = qp->qm;
struct device *dev = &qm->pdev->dev;
int qp_id = qp->qp_id;
- int pasid = arg;
+ u32 pasid = arg;
int ret;
if (!qm_qp_avail_state(qm, qp, QP_START))
@@@ -2170,12 -2179,8 +2170,12 @@@ static int qm_alloc_uacce(struct hisi_q
.flags = UACCE_DEV_SVA,
.ops = &uacce_qm_ops,
};
+ int ret;
- strncpy(interface.name, pdev->driver->name, sizeof(interface.name));
+ ret = strscpy(interface.name, pdev->driver->name,
+ sizeof(interface.name));
+ if (ret < 0)
+ return -ENAMETOOLONG;
uacce = uacce_alloc(&pdev->dev, &interface);
if (IS_ERR(uacce))
@@@ -2686,12 -2691,24 +2686,12 @@@ static ssize_t qm_status_read(struct fi
{
struct hisi_qm *qm = filp->private_data;
char buf[QM_DBG_READ_LEN];
- int val, cp_len, len;
-
- if (*pos)
- return 0;
-
- if (count < QM_DBG_READ_LEN)
- return -ENOSPC;
+ int val, len;
val = atomic_read(&qm->status.flags);
- len = snprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- if (!len)
- return -EFAULT;
-
- cp_len = copy_to_user(buffer, buf, len);
- if (cp_len)
- return -EFAULT;
+ len = scnprintf(buf, QM_DBG_READ_LEN, "%s\n", qm_s[val]);
- return (*pos = len);
+ return simple_read_from_buffer(buffer, count, pos, buf, len);
}
static const struct file_operations qm_status_fops = {
diff --combined drivers/crypto/qat/qat_common/adf_cfg.c
index ac462796cefc,4b77c6f05b3e..44c7027f8096
--- a/drivers/crypto/qat/qat_common/adf_cfg.c
+++ b/drivers/crypto/qat/qat_common/adf_cfg.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/list.h>
@@@ -66,7 -110,7 +66,7 @@@ static int qat_dev_cfg_open(struct inod
static const struct file_operations qat_dev_cfg_fops = {
.open = qat_dev_cfg_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/crypto/qat/qat_common/adf_transport_debug.c
index 2a2eccbf56ec,6133a869aeb1..659917c848d9
--- a/drivers/crypto/qat/qat_common/adf_transport_debug.c
+++ b/drivers/crypto/qat/qat_common/adf_transport_debug.c
@@@ -1,5 -1,49 +1,5 @@@
-/*
- This file is provided under a dual BSD/GPLv2 license. When using or
- redistributing this file, you may do so under either license.
-
- GPL LICENSE SUMMARY
- Copyright(c) 2014 Intel Corporation.
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License as
- published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- Contact Information:
- qat-linux(a)intel.com
-
- BSD LICENSE
- Copyright(c) 2014 Intel Corporation.
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
-
- * Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- * Redistributions in binary form must reproduce the above copyright
- notice, this list of conditions and the following disclaimer in
- the documentation and/or other materials provided with the
- distribution.
- * Neither the name of Intel Corporation nor the names of its
- contributors may be used to endorse or promote products derived
- from this software without specific prior written permission.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+// SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0-only)
+/* Copyright(c) 2014 - 2020 Intel Corporation */
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
@@@ -98,7 -142,7 +98,7 @@@ static int adf_ring_open(struct inode *
static const struct file_operations adf_ring_debug_fops = {
.open = adf_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
@@@ -209,7 -253,7 +209,7 @@@ static int adf_bank_open(struct inode *
static const struct file_operations adf_bank_debug_fops = {
.open = adf_bank_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release
};
diff --combined drivers/firmware/tegra/bpmp-debugfs.c
index c1bbba9ee93a,3f0a89ce131a..e861d407b7d1
--- a/drivers/firmware/tegra/bpmp-debugfs.c
+++ b/drivers/firmware/tegra/bpmp-debugfs.c
@@@ -4,14 -4,11 +4,14 @@@
*/
#include <linux/debugfs.h>
#include <linux/dma-mapping.h>
+#include <linux/slab.h>
#include <linux/uaccess.h>
#include <soc/tegra/bpmp.h>
#include <soc/tegra/bpmp-abi.h>
+static DEFINE_MUTEX(bpmp_debug_lock);
+
struct seqbuf {
char *buf;
size_t pos;
@@@ -99,354 -96,6 +99,354 @@@ static const char *get_filename(struct
return filename;
}
+static int mrq_debug_open(struct tegra_bpmp *bpmp, const char *name,
+ uint32_t *fd, uint32_t *len, bool write)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(write ? CMD_DEBUG_OPEN_WO : CMD_DEBUG_OPEN_RO),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ ssize_t sz_name;
+ int err = 0;
+
+ sz_name = strscpy(req.fop.name, name, sizeof(req.fop.name));
+ if (sz_name < 0) {
+ pr_err("File name too large: %s\n", name);
+ return -EINVAL;
+ }
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ *len = resp.fop.datalen;
+ *fd = resp.fop.fd;
+
+ return 0;
+}
+
+static int mrq_debug_close(struct tegra_bpmp *bpmp, uint32_t fd)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_CLOSE),
+ .frd = {
+ .fd = fd,
+ },
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ int err = 0;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0)
+ return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name,
+ char *data, size_t sz_data, uint32_t *nbytes)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_READ),
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ int remaining, err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 0);
+ if (err)
+ goto out;
+
+ if (len > sz_data) {
+ err = -EFBIG;
+ goto close;
+ }
+
+ req.frd.fd = fd;
+ remaining = len;
+
+ while (remaining > 0) {
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ if (resp.frd.readlen > remaining) {
+ pr_err("%s: read data length invalid\n", __func__);
+ err = -EINVAL;
+ goto close;
+ }
+
+ memcpy(data, resp.frd.data, resp.frd.readlen);
+ data += resp.frd.readlen;
+ remaining -= resp.frd.readlen;
+ }
+
+ *nbytes = len;
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int mrq_debug_write(struct tegra_bpmp *bpmp, const char *name,
+ uint8_t *data, size_t sz_data)
+{
+ struct mrq_debug_request req = {
+ .cmd = cpu_to_le32(CMD_DEBUG_WRITE)
+ };
+ struct mrq_debug_response resp;
+ struct tegra_bpmp_message msg = {
+ .mrq = MRQ_DEBUG,
+ .tx = {
+ .data = &req,
+ .size = sizeof(req),
+ },
+ .rx = {
+ .data = &resp,
+ .size = sizeof(resp),
+ },
+ };
+ uint32_t fd = 0, len = 0;
+ size_t remaining;
+ int err;
+
+ mutex_lock(&bpmp_debug_lock);
+ err = mrq_debug_open(bpmp, name, &fd, &len, 1);
+ if (err)
+ goto out;
+
+ if (sz_data > len) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ req.fwr.fd = fd;
+ remaining = sz_data;
+
+ while (remaining > 0) {
+ len = min(remaining, sizeof(req.fwr.data));
+ memcpy(req.fwr.data, data, len);
+ req.fwr.datalen = len;
+
+ err = tegra_bpmp_transfer(bpmp, &msg);
+ if (err < 0) {
+ goto close;
+ } else if (msg.rx.ret < 0) {
+ err = -EINVAL;
+ goto close;
+ }
+
+ data += req.fwr.datalen;
+ remaining -= req.fwr.datalen;
+ }
+
+close:
+ err = mrq_debug_close(bpmp, fd);
+out:
+ mutex_unlock(&bpmp_debug_lock);
+ return err;
+}
+
+static int bpmp_debug_show(struct seq_file *m, void *p)
+{
+ struct file *file = m->private;
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ uint32_t nbytes = 0;
+ size_t len;
+ int err;
+
+ len = seq_get_buf(m, &databuf);
+ if (!databuf)
+ return -ENOMEM;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ err = mrq_debug_read(bpmp, filename, databuf, len, &nbytes);
+ if (!err)
+ seq_commit(m, nbytes);
+
+ return err;
+}
+
+static ssize_t bpmp_debug_store(struct file *file, const char __user *buf,
+ size_t count, loff_t *f_pos)
+{
+ struct inode *inode = file_inode(file);
+ struct tegra_bpmp *bpmp = inode->i_private;
+ char *databuf = NULL;
+ char fnamebuf[256];
+ const char *filename;
+ ssize_t err;
+
+ filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
+ if (!filename)
+ return -ENOENT;
+
+ databuf = kmalloc(count, GFP_KERNEL);
+ if (!databuf)
+ return -ENOMEM;
+
+ if (copy_from_user(databuf, buf, count)) {
+ err = -EFAULT;
+ goto free_ret;
+ }
+
+ err = mrq_debug_write(bpmp, filename, databuf, count);
+
+free_ret:
+ kfree(databuf);
+
+ return err ?: count;
+}
+
+static int bpmp_debug_open(struct inode *inode, struct file *file)
+{
+ return single_open_size(file, bpmp_debug_show, file, SZ_256K);
+}
+
+static const struct file_operations bpmp_debug_fops = {
+ .open = bpmp_debug_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .write = bpmp_debug_store,
+ .release = single_release,
+};
+
+static int bpmp_populate_debugfs_inband(struct tegra_bpmp *bpmp,
+ struct dentry *parent,
+ char *ppath)
+{
+ const size_t pathlen = SZ_256;
+ const size_t bufsize = SZ_16K;
+ uint32_t dsize, attrs = 0;
+ struct dentry *dentry;
+ struct seqbuf seqbuf;
+ char *buf, *pathbuf;
+ const char *name;
+ int err = 0;
+
+ if (!bpmp || !parent || !ppath)
+ return -EINVAL;
+
+ buf = kmalloc(bufsize, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pathbuf = kzalloc(pathlen, GFP_KERNEL);
+ if (!pathbuf) {
+ kfree(buf);
+ return -ENOMEM;
+ }
+
+ err = mrq_debug_read(bpmp, ppath, buf, bufsize, &dsize);
+ if (err)
+ goto out;
+
+ seqbuf_init(&seqbuf, buf, dsize);
+
+ while (!seqbuf_eof(&seqbuf)) {
+ err = seqbuf_read_u32(&seqbuf, &attrs);
+ if (err)
+ goto out;
+
+ err = seqbuf_read_str(&seqbuf, &name);
+ if (err < 0)
+ goto out;
+
+ if (attrs & DEBUGFS_S_ISDIR) {
+ size_t len;
+
+ dentry = debugfs_create_dir(name, parent);
+ if (IS_ERR(dentry)) {
+ err = PTR_ERR(dentry);
+ goto out;
+ }
+
+ len = strlen(ppath) + strlen(name) + 1;
+ if (len >= pathlen) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ strncpy(pathbuf, ppath, pathlen);
+ strncat(pathbuf, name, strlen(name));
+ strcat(pathbuf, "/");
+
+ err = bpmp_populate_debugfs_inband(bpmp, dentry,
+ pathbuf);
+ if (err < 0)
+ goto out;
+ } else {
+ umode_t mode;
+
+ mode = attrs & DEBUGFS_S_IRUSR ? 0400 : 0;
+ mode |= attrs & DEBUGFS_S_IWUSR ? 0200 : 0;
+ dentry = debugfs_create_file(name, mode, parent, bpmp,
+ &bpmp_debug_fops);
+ if (!dentry) {
+ err = -ENOMEM;
+ goto out;
+ }
+ }
+ }
+
+out:
+ kfree(pathbuf);
+ kfree(buf);
+
+ return err;
+}
+
static int mrq_debugfs_read(struct tegra_bpmp *bpmp,
dma_addr_t name, size_t sz_name,
dma_addr_t data, size_t sz_data,
@@@ -478,8 -127,6 +478,8 @@@
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.fop.nbytes;
@@@ -537,8 -184,6 +537,8 @@@ static int mrq_debugfs_dumpdir(struct t
err = tegra_bpmp_transfer(bpmp, &msg);
if (err < 0)
return err;
+ else if (msg.rx.ret < 0)
+ return -EINVAL;
*nbytes = (size_t)resp.dumpdir.nbytes;
@@@ -557,7 -202,7 +557,7 @@@ static int debugfs_show(struct seq_fil
char buf[256];
const char *filename;
size_t len, nbytes;
- int ret;
+ int err;
filename = get_filename(bpmp, file, buf, sizeof(buf));
if (!filename)
@@@ -571,24 -216,24 +571,24 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
len = strlen(filename);
strncpy(namevirt, filename, namesize);
- ret = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
+ err = mrq_debugfs_read(bpmp, namephys, len, dataphys, datasize,
&nbytes);
- if (!ret)
+ if (!err)
seq_write(m, datavirt, nbytes);
dma_free_coherent(bpmp->dev, datasize, datavirt, dataphys);
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret;
+ return err;
}
static int debugfs_open(struct inode *inode, struct file *file)
@@@ -608,7 -253,7 +608,7 @@@ static ssize_t debugfs_store(struct fil
char fnamebuf[256];
const char *filename;
size_t len;
- int ret;
+ int err;
filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf));
if (!filename)
@@@ -622,7 -267,7 +622,7 @@@
datavirt = dma_alloc_coherent(bpmp->dev, datasize, &dataphys,
GFP_KERNEL | GFP_DMA32);
if (!datavirt) {
- ret = -ENOMEM;
+ err = -ENOMEM;
goto free_namebuf;
}
@@@ -630,11 -275,11 +630,11 @@@
strncpy(namevirt, filename, namesize);
if (copy_from_user(datavirt, buf, count)) {
- ret = -EFAULT;
+ err = -EFAULT;
goto free_databuf;
}
- ret = mrq_debugfs_write(bpmp, namephys, len, dataphys,
+ err = mrq_debugfs_write(bpmp, namephys, len, dataphys,
count);
free_databuf:
@@@ -642,12 -287,12 +642,12 @@@
free_namebuf:
dma_free_coherent(bpmp->dev, namesize, namevirt, namephys);
- return ret ?: count;
+ return err ?: count;
}
static const struct file_operations debugfs_fops = {
.open = debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.write = debugfs_store,
.release = single_release,
@@@ -705,66 -350,59 +705,66 @@@ static int bpmp_populate_dir(struct teg
return 0;
}
-static int create_debugfs_mirror(struct tegra_bpmp *bpmp, void *buf,
- size_t bufsize, struct dentry *root)
+static int bpmp_populate_debugfs_shmem(struct tegra_bpmp *bpmp)
{
struct seqbuf seqbuf;
+ const size_t sz = SZ_512K;
+ dma_addr_t phys;
+ size_t nbytes;
+ void *virt;
int err;
- bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
- if (!bpmp->debugfs_mirror)
+ virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
+ GFP_KERNEL | GFP_DMA32);
+ if (!virt)
return -ENOMEM;
- seqbuf_init(&seqbuf, buf, bufsize);
- err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+ err = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
if (err < 0) {
- debugfs_remove_recursive(bpmp->debugfs_mirror);
- bpmp->debugfs_mirror = NULL;
+ goto free;
+ } else if (nbytes > sz) {
+ err = -EINVAL;
+ goto free;
}
+ seqbuf_init(&seqbuf, virt, nbytes);
+ err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);
+free:
+ dma_free_coherent(bpmp->dev, sz, virt, phys);
+
return err;
}
int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
{
- dma_addr_t phys;
- void *virt;
- const size_t sz = SZ_256K;
- size_t nbytes;
- int ret;
struct dentry *root;
+ bool inband;
+ int err;
- if (!tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
+ inband = tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUG);
+
+ if (!inband && !tegra_bpmp_mrq_is_supported(bpmp, MRQ_DEBUGFS))
return 0;
root = debugfs_create_dir("bpmp", NULL);
if (!root)
return -ENOMEM;
- virt = dma_alloc_coherent(bpmp->dev, sz, &phys,
- GFP_KERNEL | GFP_DMA32);
- if (!virt) {
- ret = -ENOMEM;
+ bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
+ if (!bpmp->debugfs_mirror) {
+ err = -ENOMEM;
goto out;
}
- ret = mrq_debugfs_dumpdir(bpmp, phys, sz, &nbytes);
- if (ret < 0)
- goto free;
+ if (inband)
+ err = bpmp_populate_debugfs_inband(bpmp, bpmp->debugfs_mirror,
+ "/");
+ else
+ err = bpmp_populate_debugfs_shmem(bpmp);
- ret = create_debugfs_mirror(bpmp, virt, nbytes, root);
-free:
- dma_free_coherent(bpmp->dev, sz, virt, phys);
out:
- if (ret < 0)
- debugfs_remove(root);
+ if (err < 0)
+ debugfs_remove_recursive(root);
- return ret;
+ return err;
}
diff --combined drivers/gpio/gpiolib.c
index 80137c1b3cdc,0ca1acff0e37..25ef7ed30a06
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@@ -17,16 -17,20 +17,16 @@@
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/cdev.h>
#include <linux/fs.h>
-#include <linux/uaccess.h>
#include <linux/compat.h>
-#include <linux/anon_inodes.h>
#include <linux/file.h>
-#include <linux/kfifo.h>
-#include <linux/poll.h>
-#include <linux/timekeeping.h>
#include <uapi/linux/gpio.h>
#include "gpiolib.h"
#include "gpiolib-of.h"
#include "gpiolib-acpi.h"
+#include "gpiolib-cdev.h"
+#include "gpiolib-sysfs.h"
#define CREATE_TRACE_POINTS
#include <trace/events/gpio.h>
@@@ -421,6 -425,1105 +421,6 @@@ bool gpiochip_line_is_valid(const struc
}
EXPORT_SYMBOL_GPL(gpiochip_line_is_valid);
-/*
- * GPIO line handle management
- */
-
-/**
- * struct linehandle_state - contains the state of a userspace handle
- * @gdev: the GPIO device the handle pertains to
- * @label: consumer label used to tag descriptors
- * @descs: the GPIO descriptors held by this handle
- * @numdescs: the number of descriptors held in the descs array
- */
-struct linehandle_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *descs[GPIOHANDLES_MAX];
- u32 numdescs;
-};
-
-#define GPIOHANDLE_REQUEST_VALID_FLAGS \
- (GPIOHANDLE_REQUEST_INPUT | \
- GPIOHANDLE_REQUEST_OUTPUT | \
- GPIOHANDLE_REQUEST_ACTIVE_LOW | \
- GPIOHANDLE_REQUEST_BIAS_PULL_UP | \
- GPIOHANDLE_REQUEST_BIAS_PULL_DOWN | \
- GPIOHANDLE_REQUEST_BIAS_DISABLE | \
- GPIOHANDLE_REQUEST_OPEN_DRAIN | \
- GPIOHANDLE_REQUEST_OPEN_SOURCE)
-
-static int linehandle_validate_flags(u32 flags)
-{
- /* Return an error if an unknown flag is set */
- if (flags & ~GPIOHANDLE_REQUEST_VALID_FLAGS)
- return -EINVAL;
-
- /*
- * Do not allow both INPUT & OUTPUT flags to be set as they are
- * contradictory.
- */
- if ((flags & GPIOHANDLE_REQUEST_INPUT) &&
- (flags & GPIOHANDLE_REQUEST_OUTPUT))
- return -EINVAL;
-
- /*
- * Do not allow OPEN_SOURCE & OPEN_DRAIN flags in a single request. If
- * the hardware actually supports enabling both at the same time the
- * electrical result would be disastrous.
- */
- if ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) &&
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* OPEN_DRAIN and OPEN_SOURCE flags only make sense for output mode. */
- if (!(flags & GPIOHANDLE_REQUEST_OUTPUT) &&
- ((flags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (flags & GPIOHANDLE_REQUEST_OPEN_SOURCE)))
- return -EINVAL;
-
- /* Bias flags only allowed for input or output mode. */
- if (!((flags & GPIOHANDLE_REQUEST_INPUT) ||
- (flags & GPIOHANDLE_REQUEST_OUTPUT)) &&
- ((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP) ||
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((flags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (flags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((flags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (flags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- return 0;
-}
-
-static long linehandle_set_config(struct linehandle_state *lh,
- void __user *ip)
-{
- struct gpiohandle_config gcnf;
- struct gpio_desc *desc;
- int i, ret;
- u32 lflags;
- unsigned long *flagsp;
-
- if (copy_from_user(&gcnf, ip, sizeof(gcnf)))
- return -EFAULT;
-
- lflags = gcnf.flags;
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- for (i = 0; i < lh->numdescs; i++) {
- desc = lh->descs[i];
- flagsp = &desc->flags;
-
- assign_bit(FLAG_ACTIVE_LOW, flagsp,
- lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW);
-
- assign_bit(FLAG_OPEN_DRAIN, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN);
-
- assign_bit(FLAG_OPEN_SOURCE, flagsp,
- lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE);
-
- assign_bit(FLAG_PULL_UP, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP);
-
- assign_bit(FLAG_PULL_DOWN, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN);
-
- assign_bit(FLAG_BIAS_DISABLE, flagsp,
- lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE);
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!gcnf.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- return ret;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- return ret;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_CONFIG, desc);
- }
- return 0;
-}
-
-static long linehandle_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct linehandle_state *lh = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
- DECLARE_BITMAP(vals, GPIOHANDLES_MAX);
- int i;
-
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- /* NOTE: It's ok to read values of output lines. */
- int ret = gpiod_get_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- if (ret)
- return ret;
-
- memset(&ghd, 0, sizeof(ghd));
- for (i = 0; i < lh->numdescs; i++)
- ghd.values[i] = test_bit(i, vals);
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- } else if (cmd == GPIOHANDLE_SET_LINE_VALUES_IOCTL) {
- /*
- * All line descriptors were created at once with the same
- * flags so just check if the first one is really output.
- */
- if (!test_bit(FLAG_IS_OUT, &lh->descs[0]->flags))
- return -EPERM;
-
- if (copy_from_user(&ghd, ip, sizeof(ghd)))
- return -EFAULT;
-
- /* Clamp all values to [0,1] */
- for (i = 0; i < lh->numdescs; i++)
- __assign_bit(i, vals, ghd.values[i]);
-
- /* Reuse the array setting function */
- return gpiod_set_array_value_complex(false,
- true,
- lh->numdescs,
- lh->descs,
- NULL,
- vals);
- } else if (cmd == GPIOHANDLE_SET_CONFIG_IOCTL) {
- return linehandle_set_config(lh, ip);
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long linehandle_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return linehandle_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static int linehandle_release(struct inode *inode, struct file *filep)
-{
- struct linehandle_state *lh = filep->private_data;
- struct gpio_device *gdev = lh->gdev;
- int i;
-
- for (i = 0; i < lh->numdescs; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
- kfree(lh);
- put_device(&gdev->dev);
- return 0;
-}
-
-static const struct file_operations linehandle_fileops = {
- .release = linehandle_release,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = linehandle_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = linehandle_ioctl_compat,
-#endif
-};
-
-static int linehandle_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpiohandle_request handlereq;
- struct linehandle_state *lh;
- struct file *file;
- int fd, i, count = 0, ret;
- u32 lflags;
-
- if (copy_from_user(&handlereq, ip, sizeof(handlereq)))
- return -EFAULT;
- if ((handlereq.lines == 0) || (handlereq.lines > GPIOHANDLES_MAX))
- return -EINVAL;
-
- lflags = handlereq.flags;
-
- ret = linehandle_validate_flags(lflags);
- if (ret)
- return ret;
-
- lh = kzalloc(sizeof(*lh), GFP_KERNEL);
- if (!lh)
- return -ENOMEM;
- lh->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- handlereq.consumer_label[sizeof(handlereq.consumer_label)-1] = '\0';
- if (strlen(handlereq.consumer_label)) {
- lh->label = kstrdup(handlereq.consumer_label,
- GFP_KERNEL);
- if (!lh->label) {
- ret = -ENOMEM;
- goto out_free_lh;
- }
- }
-
- /* Request each GPIO */
- for (i = 0; i < handlereq.lines; i++) {
- u32 offset = handlereq.lineoffsets[i];
- struct gpio_desc *desc = gpiochip_get_desc(gdev->chip, offset);
-
- if (IS_ERR(desc)) {
- ret = PTR_ERR(desc);
- goto out_free_descs;
- }
-
- ret = gpiod_request(desc, lh->label);
- if (ret)
- goto out_free_descs;
- lh->descs[i] = desc;
- count = i + 1;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN)
- set_bit(FLAG_OPEN_DRAIN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE)
- set_bit(FLAG_OPEN_SOURCE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_set_transitory(desc, false);
- if (ret < 0)
- goto out_free_descs;
-
- /*
- * Lines have to be requested explicitly for input
- * or output, else the line will be treated "as is".
- */
- if (lflags & GPIOHANDLE_REQUEST_OUTPUT) {
- int val = !!handlereq.default_values[i];
-
- ret = gpiod_direction_output(desc, val);
- if (ret)
- goto out_free_descs;
- } else if (lflags & GPIOHANDLE_REQUEST_INPUT) {
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_descs;
- }
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- dev_dbg(&gdev->dev, "registered chardev handle for line %d\n",
- offset);
- }
- /* Let i point at the last handle */
- i--;
- lh->numdescs = handlereq.lines;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_descs;
- }
-
- file = anon_inode_getfile("gpio-linehandle",
- &linehandle_fileops,
- lh,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- handlereq.fd = fd;
- if (copy_to_user(ip, &handlereq, sizeof(handlereq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- dev_dbg(&gdev->dev, "registered chardev handle for %d lines\n",
- lh->numdescs);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_descs:
- for (i = 0; i < count; i++)
- gpiod_free(lh->descs[i]);
- kfree(lh->label);
-out_free_lh:
- kfree(lh);
- put_device(&gdev->dev);
- return ret;
-}
-
-/*
- * GPIO line event management
- */
-
-/**
- * struct lineevent_state - contains the state of a userspace event
- * @gdev: the GPIO device the event pertains to
- * @label: consumer label used to tag descriptors
- * @desc: the GPIO descriptor held by this event
- * @eflags: the event flags this line was requested with
- * @irq: the interrupt that trigger in response to events on this GPIO
- * @wait: wait queue that handles blocking reads of events
- * @events: KFIFO for the GPIO events
- * @timestamp: cache for the timestamp storing it between hardirq
- * and IRQ thread, used to bring the timestamp close to the actual
- * event
- */
-struct lineevent_state {
- struct gpio_device *gdev;
- const char *label;
- struct gpio_desc *desc;
- u32 eflags;
- int irq;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioevent_data, 16);
- u64 timestamp;
-};
-
-#define GPIOEVENT_REQUEST_VALID_FLAGS \
- (GPIOEVENT_REQUEST_RISING_EDGE | \
- GPIOEVENT_REQUEST_FALLING_EDGE)
-
-static __poll_t lineevent_poll(struct file *filep,
- struct poll_table_struct *wait)
-{
- struct lineevent_state *le = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &le->wait, wait);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&le->events, &le->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-
-static ssize_t lineevent_read(struct file *filep,
- char __user *buf,
- size_t count,
- loff_t *f_ps)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpioevent_data ge;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(ge))
- return -EINVAL;
-
- do {
- spin_lock(&le->wait.lock);
- if (kfifo_is_empty(&le->events)) {
- if (bytes_read) {
- spin_unlock(&le->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&le->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(le->wait,
- !kfifo_is_empty(&le->events));
- if (ret) {
- spin_unlock(&le->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&le->events, &ge, 1);
- spin_unlock(&le->wait.lock);
- if (ret != 1) {
- /*
- * This should never happen - we were holding the lock
- * from the moment we learned the fifo is no longer
- * empty until now.
- */
- ret = -EIO;
- break;
- }
-
- if (copy_to_user(buf + bytes_read, &ge, sizeof(ge)))
- return -EFAULT;
- bytes_read += sizeof(ge);
- } while (count >= bytes_read + sizeof(ge));
-
- return bytes_read;
-}
-
-static int lineevent_release(struct inode *inode, struct file *filep)
-{
- struct lineevent_state *le = filep->private_data;
- struct gpio_device *gdev = le->gdev;
-
- free_irq(le->irq, le);
- gpiod_free(le->desc);
- kfree(le->label);
- kfree(le);
- put_device(&gdev->dev);
- return 0;
-}
-
-static long lineevent_ioctl(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- struct lineevent_state *le = filep->private_data;
- void __user *ip = (void __user *)arg;
- struct gpiohandle_data ghd;
-
- /*
- * We can get the value for an event line but not set it,
- * because it is input by definition.
- */
- if (cmd == GPIOHANDLE_GET_LINE_VALUES_IOCTL) {
- int val;
-
- memset(&ghd, 0, sizeof(ghd));
-
- val = gpiod_get_value_cansleep(le->desc);
- if (val < 0)
- return val;
- ghd.values[0] = val;
-
- if (copy_to_user(ip, &ghd, sizeof(ghd)))
- return -EFAULT;
-
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long lineevent_ioctl_compat(struct file *filep, unsigned int cmd,
- unsigned long arg)
-{
- return lineevent_ioctl(filep, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static const struct file_operations lineevent_fileops = {
- .release = lineevent_release,
- .read = lineevent_read,
- .poll = lineevent_poll,
- .owner = THIS_MODULE,
- .llseek = noop_llseek,
- .unlocked_ioctl = lineevent_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = lineevent_ioctl_compat,
-#endif
-};
-
-static irqreturn_t lineevent_irq_thread(int irq, void *p)
-{
- struct lineevent_state *le = p;
- struct gpioevent_data ge;
- int ret;
-
- /* Do not leak kernel stack to userspace */
- memset(&ge, 0, sizeof(ge));
-
- /*
- * We may be running from a nested threaded interrupt in which case
- * we didn't get the timestamp from lineevent_irq_handler().
- */
- if (!le->timestamp)
- ge.timestamp = ktime_get_ns();
- else
- ge.timestamp = le->timestamp;
-
- if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE
- && le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- int level = gpiod_get_value_cansleep(le->desc);
- if (level)
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- else
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_RISING_EDGE) {
- /* Emit low-to-high event */
- ge.id = GPIOEVENT_EVENT_RISING_EDGE;
- } else if (le->eflags & GPIOEVENT_REQUEST_FALLING_EDGE) {
- /* Emit high-to-low event */
- ge.id = GPIOEVENT_EVENT_FALLING_EDGE;
- } else {
- return IRQ_NONE;
- }
-
- ret = kfifo_in_spinlocked_noirqsave(&le->events, &ge,
- 1, &le->wait.lock);
- if (ret)
- wake_up_poll(&le->wait, EPOLLIN);
- else
- pr_debug_ratelimited("event FIFO is full - event dropped\n");
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t lineevent_irq_handler(int irq, void *p)
-{
- struct lineevent_state *le = p;
-
- /*
- * Just store the timestamp in hardirq context so we get it as
- * close in time as possible to the actual event.
- */
- le->timestamp = ktime_get_ns();
-
- return IRQ_WAKE_THREAD;
-}
-
-static int lineevent_create(struct gpio_device *gdev, void __user *ip)
-{
- struct gpioevent_request eventreq;
- struct lineevent_state *le;
- struct gpio_desc *desc;
- struct file *file;
- u32 offset;
- u32 lflags;
- u32 eflags;
- int fd;
- int ret;
- int irqflags = 0;
-
- if (copy_from_user(&eventreq, ip, sizeof(eventreq)))
- return -EFAULT;
-
- offset = eventreq.lineoffset;
- lflags = eventreq.handleflags;
- eflags = eventreq.eventflags;
-
- desc = gpiochip_get_desc(gdev->chip, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- /* Return an error if a unknown flag is set */
- if ((lflags & ~GPIOHANDLE_REQUEST_VALID_FLAGS) ||
- (eflags & ~GPIOEVENT_REQUEST_VALID_FLAGS))
- return -EINVAL;
-
- /* This is just wrong: we don't look for events on output lines */
- if ((lflags & GPIOHANDLE_REQUEST_OUTPUT) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_DRAIN) ||
- (lflags & GPIOHANDLE_REQUEST_OPEN_SOURCE))
- return -EINVAL;
-
- /* Only one bias flag can be set. */
- if (((lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE) &&
- (lflags & (GPIOHANDLE_REQUEST_BIAS_PULL_DOWN |
- GPIOHANDLE_REQUEST_BIAS_PULL_UP))) ||
- ((lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN) &&
- (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)))
- return -EINVAL;
-
- le = kzalloc(sizeof(*le), GFP_KERNEL);
- if (!le)
- return -ENOMEM;
- le->gdev = gdev;
- get_device(&gdev->dev);
-
- /* Make sure this is terminated */
- eventreq.consumer_label[sizeof(eventreq.consumer_label)-1] = '\0';
- if (strlen(eventreq.consumer_label)) {
- le->label = kstrdup(eventreq.consumer_label,
- GFP_KERNEL);
- if (!le->label) {
- ret = -ENOMEM;
- goto out_free_le;
- }
- }
-
- ret = gpiod_request(desc, le->label);
- if (ret)
- goto out_free_label;
- le->desc = desc;
- le->eflags = eflags;
-
- if (lflags & GPIOHANDLE_REQUEST_ACTIVE_LOW)
- set_bit(FLAG_ACTIVE_LOW, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_DISABLE)
- set_bit(FLAG_BIAS_DISABLE, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_DOWN)
- set_bit(FLAG_PULL_DOWN, &desc->flags);
- if (lflags & GPIOHANDLE_REQUEST_BIAS_PULL_UP)
- set_bit(FLAG_PULL_UP, &desc->flags);
-
- ret = gpiod_direction_input(desc);
- if (ret)
- goto out_free_desc;
-
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
-
- le->irq = gpiod_to_irq(desc);
- if (le->irq <= 0) {
- ret = -ENODEV;
- goto out_free_desc;
- }
-
- if (eflags & GPIOEVENT_REQUEST_RISING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
- if (eflags & GPIOEVENT_REQUEST_FALLING_EDGE)
- irqflags |= test_bit(FLAG_ACTIVE_LOW, &desc->flags) ?
- IRQF_TRIGGER_RISING : IRQF_TRIGGER_FALLING;
- irqflags |= IRQF_ONESHOT;
-
- INIT_KFIFO(le->events);
- init_waitqueue_head(&le->wait);
-
- /* Request a thread to read the events */
- ret = request_threaded_irq(le->irq,
- lineevent_irq_handler,
- lineevent_irq_thread,
- irqflags,
- le->label,
- le);
- if (ret)
- goto out_free_desc;
-
- fd = get_unused_fd_flags(O_RDONLY | O_CLOEXEC);
- if (fd < 0) {
- ret = fd;
- goto out_free_irq;
- }
-
- file = anon_inode_getfile("gpio-event",
- &lineevent_fileops,
- le,
- O_RDONLY | O_CLOEXEC);
- if (IS_ERR(file)) {
- ret = PTR_ERR(file);
- goto out_put_unused_fd;
- }
-
- eventreq.fd = fd;
- if (copy_to_user(ip, &eventreq, sizeof(eventreq))) {
- /*
- * fput() will trigger the release() callback, so do not go onto
- * the regular error cleanup path here.
- */
- fput(file);
- put_unused_fd(fd);
- return -EFAULT;
- }
-
- fd_install(fd, file);
-
- return 0;
-
-out_put_unused_fd:
- put_unused_fd(fd);
-out_free_irq:
- free_irq(le->irq, le);
-out_free_desc:
- gpiod_free(le->desc);
-out_free_label:
- kfree(le->label);
-out_free_le:
- kfree(le);
- put_device(&gdev->dev);
- return ret;
-}
-
-static void gpio_desc_to_lineinfo(struct gpio_desc *desc,
- struct gpioline_info *info)
-{
- struct gpio_chip *gc = desc->gdev->chip;
- bool ok_for_pinctrl;
- unsigned long flags;
-
- /*
- * This function takes a mutex so we must check this before taking
- * the spinlock.
- *
- * FIXME: find a non-racy way to retrieve this information. Maybe a
- * lock common to both frameworks?
- */
- ok_for_pinctrl =
- pinctrl_gpio_can_use_line(gc->base + info->line_offset);
-
- spin_lock_irqsave(&gpio_lock, flags);
-
- if (desc->name) {
- strncpy(info->name, desc->name, sizeof(info->name));
- info->name[sizeof(info->name) - 1] = '\0';
- } else {
- info->name[0] = '\0';
- }
-
- if (desc->label) {
- strncpy(info->consumer, desc->label, sizeof(info->consumer));
- info->consumer[sizeof(info->consumer) - 1] = '\0';
- } else {
- info->consumer[0] = '\0';
- }
-
- /*
- * Userspace only need to know that the kernel is using this GPIO so
- * it can't use it.
- */
- info->flags = 0;
- if (test_bit(FLAG_REQUESTED, &desc->flags) ||
- test_bit(FLAG_IS_HOGGED, &desc->flags) ||
- test_bit(FLAG_USED_AS_IRQ, &desc->flags) ||
- test_bit(FLAG_EXPORT, &desc->flags) ||
- test_bit(FLAG_SYSFS, &desc->flags) ||
- !ok_for_pinctrl)
- info->flags |= GPIOLINE_FLAG_KERNEL;
- if (test_bit(FLAG_IS_OUT, &desc->flags))
- info->flags |= GPIOLINE_FLAG_IS_OUT;
- if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
- info->flags |= GPIOLINE_FLAG_ACTIVE_LOW;
- if (test_bit(FLAG_OPEN_DRAIN, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_DRAIN |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
- info->flags |= (GPIOLINE_FLAG_OPEN_SOURCE |
- GPIOLINE_FLAG_IS_OUT);
- if (test_bit(FLAG_BIAS_DISABLE, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_DISABLE;
- if (test_bit(FLAG_PULL_DOWN, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_DOWN;
- if (test_bit(FLAG_PULL_UP, &desc->flags))
- info->flags |= GPIOLINE_FLAG_BIAS_PULL_UP;
-
- spin_unlock_irqrestore(&gpio_lock, flags);
-}
-
-struct gpio_chardev_data {
- struct gpio_device *gdev;
- wait_queue_head_t wait;
- DECLARE_KFIFO(events, struct gpioline_info_changed, 32);
- struct notifier_block lineinfo_changed_nb;
- unsigned long *watched_lines;
-};
-
-/*
- * gpio_ioctl() - ioctl handler for the GPIO chardev
- */
-static long gpio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
- struct gpio_chip *gc = gdev->chip;
- void __user *ip = (void __user *)arg;
- struct gpio_desc *desc;
- __u32 offset;
- int hwgpio;
-
- /* We fail any subsequent ioctl():s when the chip is gone */
- if (!gc)
- return -ENODEV;
-
- /* Fill in the struct and pass to userspace */
- if (cmd == GPIO_GET_CHIPINFO_IOCTL) {
- struct gpiochip_info chipinfo;
-
- memset(&chipinfo, 0, sizeof(chipinfo));
-
- strncpy(chipinfo.name, dev_name(&gdev->dev),
- sizeof(chipinfo.name));
- chipinfo.name[sizeof(chipinfo.name)-1] = '\0';
- strncpy(chipinfo.label, gdev->label,
- sizeof(chipinfo.label));
- chipinfo.label[sizeof(chipinfo.label)-1] = '\0';
- chipinfo.lines = gdev->ngpio;
- if (copy_to_user(ip, &chipinfo, sizeof(chipinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
- return 0;
- } else if (cmd == GPIO_GET_LINEHANDLE_IOCTL) {
- return linehandle_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEEVENT_IOCTL) {
- return lineevent_create(gdev, ip);
- } else if (cmd == GPIO_GET_LINEINFO_WATCH_IOCTL) {
- struct gpioline_info lineinfo;
-
- if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, lineinfo.line_offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- gpio_desc_to_lineinfo(desc, &lineinfo);
-
- if (copy_to_user(ip, &lineinfo, sizeof(lineinfo)))
- return -EFAULT;
-
- set_bit(hwgpio, priv->watched_lines);
- return 0;
- } else if (cmd == GPIO_GET_LINEINFO_UNWATCH_IOCTL) {
- if (copy_from_user(&offset, ip, sizeof(offset)))
- return -EFAULT;
-
- desc = gpiochip_get_desc(gc, offset);
- if (IS_ERR(desc))
- return PTR_ERR(desc);
-
- hwgpio = gpio_chip_hwgpio(desc);
-
- if (!test_bit(hwgpio, priv->watched_lines))
- return -EBUSY;
-
- clear_bit(hwgpio, priv->watched_lines);
- return 0;
- }
- return -EINVAL;
-}
-
-#ifdef CONFIG_COMPAT
-static long gpio_ioctl_compat(struct file *filp, unsigned int cmd,
- unsigned long arg)
-{
- return gpio_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
-}
-#endif
-
-static struct gpio_chardev_data *
-to_gpio_chardev_data(struct notifier_block *nb)
-{
- return container_of(nb, struct gpio_chardev_data, lineinfo_changed_nb);
-}
-
-static int lineinfo_changed_notify(struct notifier_block *nb,
- unsigned long action, void *data)
-{
- struct gpio_chardev_data *priv = to_gpio_chardev_data(nb);
- struct gpioline_info_changed chg;
- struct gpio_desc *desc = data;
- int ret;
-
- if (!test_bit(gpio_chip_hwgpio(desc), priv->watched_lines))
- return NOTIFY_DONE;
-
- memset(&chg, 0, sizeof(chg));
- chg.info.line_offset = gpio_chip_hwgpio(desc);
- chg.event_type = action;
- chg.timestamp = ktime_get_ns();
- gpio_desc_to_lineinfo(desc, &chg.info);
-
- ret = kfifo_in_spinlocked(&priv->events, &chg, 1, &priv->wait.lock);
- if (ret)
- wake_up_poll(&priv->wait, EPOLLIN);
- else
- pr_debug_ratelimited("lineinfo event FIFO is full - event dropped\n");
-
- return NOTIFY_OK;
-}
-
-static __poll_t lineinfo_watch_poll(struct file *filep,
- struct poll_table_struct *pollt)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- __poll_t events = 0;
-
- poll_wait(filep, &priv->wait, pollt);
-
- if (!kfifo_is_empty_spinlocked_noirqsave(&priv->events,
- &priv->wait.lock))
- events = EPOLLIN | EPOLLRDNORM;
-
- return events;
-}
-
-static ssize_t lineinfo_watch_read(struct file *filep, char __user *buf,
- size_t count, loff_t *off)
-{
- struct gpio_chardev_data *priv = filep->private_data;
- struct gpioline_info_changed event;
- ssize_t bytes_read = 0;
- int ret;
-
- if (count < sizeof(event))
- return -EINVAL;
-
- do {
- spin_lock(&priv->wait.lock);
- if (kfifo_is_empty(&priv->events)) {
- if (bytes_read) {
- spin_unlock(&priv->wait.lock);
- return bytes_read;
- }
-
- if (filep->f_flags & O_NONBLOCK) {
- spin_unlock(&priv->wait.lock);
- return -EAGAIN;
- }
-
- ret = wait_event_interruptible_locked(priv->wait,
- !kfifo_is_empty(&priv->events));
- if (ret) {
- spin_unlock(&priv->wait.lock);
- return ret;
- }
- }
-
- ret = kfifo_out(&priv->events, &event, 1);
- spin_unlock(&priv->wait.lock);
- if (ret != 1) {
- ret = -EIO;
- break;
- /* We should never get here. See lineevent_read(). */
- }
-
- if (copy_to_user(buf + bytes_read, &event, sizeof(event)))
- return -EFAULT;
- bytes_read += sizeof(event);
- } while (count >= bytes_read + sizeof(event));
-
- return bytes_read;
-}
-
-/**
- * gpio_chrdev_open() - open the chardev for ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_open(struct inode *inode, struct file *filp)
-{
- struct gpio_device *gdev = container_of(inode->i_cdev,
- struct gpio_device, chrdev);
- struct gpio_chardev_data *priv;
- int ret = -ENOMEM;
-
- /* Fail on open if the backing gpiochip is gone */
- if (!gdev->chip)
- return -ENODEV;
-
- priv = kzalloc(sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- priv->watched_lines = bitmap_zalloc(gdev->chip->ngpio, GFP_KERNEL);
- if (!priv->watched_lines)
- goto out_free_priv;
-
- init_waitqueue_head(&priv->wait);
- INIT_KFIFO(priv->events);
- priv->gdev = gdev;
-
- priv->lineinfo_changed_nb.notifier_call = lineinfo_changed_notify;
- ret = atomic_notifier_chain_register(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- if (ret)
- goto out_free_bitmap;
-
- get_device(&gdev->dev);
- filp->private_data = priv;
-
- ret = nonseekable_open(inode, filp);
- if (ret)
- goto out_unregister_notifier;
-
- return ret;
-
-out_unregister_notifier:
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
-out_free_bitmap:
- bitmap_free(priv->watched_lines);
-out_free_priv:
- kfree(priv);
- return ret;
-}
-
-/**
- * gpio_chrdev_release() - close chardev after ioctl operations
- * @inode: inode for this chardev
- * @filp: file struct for storing private data
- * Returns 0 on success
- */
-static int gpio_chrdev_release(struct inode *inode, struct file *filp)
-{
- struct gpio_chardev_data *priv = filp->private_data;
- struct gpio_device *gdev = priv->gdev;
-
- bitmap_free(priv->watched_lines);
- atomic_notifier_chain_unregister(&gdev->notifier,
- &priv->lineinfo_changed_nb);
- put_device(&gdev->dev);
- kfree(priv);
-
- return 0;
-}
-
-static const struct file_operations gpio_fileops = {
- .release = gpio_chrdev_release,
- .open = gpio_chrdev_open,
- .poll = lineinfo_watch_poll,
- .read = lineinfo_watch_read,
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .unlocked_ioctl = gpio_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = gpio_ioctl_compat,
-#endif
-};
-
static void gpiodevice_release(struct device *dev)
{
struct gpio_device *gdev = dev_get_drvdata(dev);
@@@ -436,10 -1539,17 +436,10 @@@ static int gpiochip_setup_dev(struct gp
{
int ret;
- cdev_init(&gdev->chrdev, &gpio_fileops);
- gdev->chrdev.owner = THIS_MODULE;
- gdev->dev.devt = MKDEV(MAJOR(gpio_devt), gdev->id);
-
- ret = cdev_device_add(&gdev->chrdev, &gdev->dev);
+ ret = gpiolib_cdev_register(gdev, gpio_devt);
if (ret)
return ret;
- chip_dbg(gdev->chip, "added GPIO chardev (%d:%d)\n",
- MAJOR(gpio_devt), gdev->id);
-
ret = gpiochip_sysfs_register(gdev);
if (ret)
goto err_remove_device;
@@@ -452,7 -1562,7 +452,7 @@@
return 0;
err_remove_device:
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
return ret;
}
@@@ -615,7 -1725,7 +615,7 @@@ int gpiochip_add_data_with_key(struct g
spin_unlock_irqrestore(&gpio_lock, flags);
- ATOMIC_INIT_NOTIFIER_HEAD(&gdev->notifier);
+ BLOCKING_INIT_NOTIFIER_HEAD(&gdev->notifier);
#ifdef CONFIG_PINCTRL
INIT_LIST_HEAD(&gdev->pin_ranges);
@@@ -774,7 -1884,7 +774,7 @@@ void gpiochip_remove(struct gpio_chip *
* be removed, else it will be dangling until the last user is
* gone.
*/
- cdev_device_del(&gdev->chrdev, &gdev->dev);
+ gpiolib_cdev_unregister(gdev);
put_device(&gdev->dev);
}
EXPORT_SYMBOL_GPL(gpiochip_remove);
@@@ -2049,8 -3159,8 +2049,8 @@@ static bool gpiod_free_commit(struct gp
}
spin_unlock_irqrestore(&gpio_lock, flags);
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_RELEASED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_RELEASED, desc);
return ret;
}
@@@ -2595,9 -3705,10 +2595,9 @@@ int gpiod_get_array_value_complex(bool
bitmap_xor(value_bitmap, value_bitmap,
array_info->invert_mask, array_size);
- if (bitmap_full(array_info->get_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->get_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -2878,9 -3989,10 +2878,9 @@@ int gpiod_set_array_value_complex(bool
gpio_chip_set_multiple(array_info->chip, array_info->set_mask,
value_bitmap);
- if (bitmap_full(array_info->set_mask, array_size))
- return 0;
-
i = find_first_zero_bit(array_info->set_mask, array_size);
+ if (i == array_size)
+ return 0;
} else {
array_info = NULL;
}
@@@ -3927,8 -5039,8 +3927,8 @@@ struct gpio_desc *__must_check gpiod_ge
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -3995,8 -5107,8 +3995,8 @@@ struct gpio_desc *fwnode_get_named_gpio
return ERR_PTR(ret);
}
- atomic_notifier_call_chain(&desc->gdev->notifier,
- GPIOLINE_CHANGED_REQUESTED, desc);
+ blocking_notifier_call_chain(&desc->gdev->notifier,
+ GPIOLINE_CHANGED_REQUESTED, desc);
return desc;
}
@@@ -4417,7 -5529,7 +4417,7 @@@ static int gpiolib_open(struct inode *i
static const struct file_operations gpiolib_operations = {
.owner = THIS_MODULE,
.open = gpiolib_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/gpu/drm/arm/malidp_drv.c
index 69fee05c256c,029a26def9f7..c9e18eeddf2e
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@@ -349,11 -349,11 +349,11 @@@ malidp_verify_afbc_framebuffer_size(str
if (objs->size < afbc_size) {
DRM_DEBUG_KMS("buffer size (%zu) too small for AFBC buffer size = %u\n",
objs->size, afbc_size);
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return false;
}
- drm_gem_object_put_unlocked(objs);
+ drm_gem_object_put(objs);
return true;
}
@@@ -542,7 -542,7 +542,7 @@@ static ssize_t malidp_debugfs_write(str
static const struct file_operations malidp_debugfs_fops = {
.owner = THIS_MODULE,
.open = malidp_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = malidp_debugfs_write,
.llseek = seq_lseek,
.release = single_release,
@@@ -563,7 -563,16 +563,7 @@@ static void malidp_debugfs_init(struct
static struct drm_driver malidp_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
- .gem_free_object_unlocked = drm_gem_cma_free_object,
- .gem_vm_ops = &drm_gem_cma_vm_ops,
- .dumb_create = malidp_dumb_create,
- .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
- .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
- .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table,
- .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
- .gem_prime_vmap = drm_gem_cma_prime_vmap,
- .gem_prime_vunmap = drm_gem_cma_prime_vunmap,
- .gem_prime_mmap = drm_gem_cma_prime_mmap,
+ DRM_GEM_CMA_DRIVER_OPS_WITH_DUMB_CREATE(malidp_dumb_create),
#ifdef CONFIG_DEBUG_FS
.debugfs_init = malidp_debugfs_init,
#endif
@@@ -657,11 -666,20 +657,11 @@@ static ssize_t core_id_show(struct devi
static DEVICE_ATTR_RO(core_id);
-static int malidp_init_sysfs(struct device *dev)
-{
- int ret = device_create_file(dev, &dev_attr_core_id);
-
- if (ret)
- DRM_ERROR("failed to create device file for core_id\n");
-
- return ret;
-}
-
-static void malidp_fini_sysfs(struct device *dev)
-{
- device_remove_file(dev, &dev_attr_core_id);
-}
+static struct attribute *mali_dp_attrs[] = {
+ &dev_attr_core_id.attr,
+ NULL,
+};
+ATTRIBUTE_GROUPS(mali_dp);
#define MAX_OUTPUT_CHANNELS 3
@@@ -823,6 -841,10 +823,6 @@@ static int malidp_bind(struct device *d
if (ret < 0)
goto query_hw_fail;
- ret = malidp_init_sysfs(dev);
- if (ret)
- goto init_fail;
-
/* Set the CRTC's port so that the encoder component can find it */
malidp->crtc.port = of_graph_get_port_by_id(dev->of_node, 0);
@@@ -848,6 -870,7 +848,6 @@@
drm->irq_enabled = true;
ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
- drm_crtc_vblank_reset(&malidp->crtc);
if (ret < 0) {
DRM_ERROR("failed to initialise vblank\n");
goto vblank_fail;
@@@ -879,6 -902,8 +879,6 @@@ irq_init_fail
bind_fail:
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
-init_fail:
- malidp_fini_sysfs(dev);
malidp_fini(drm);
query_hw_fail:
pm_runtime_put(dev);
@@@ -904,13 -929,15 +904,13 @@@ static void malidp_unbind(struct devic
drm_dev_unregister(drm);
drm_kms_helper_poll_fini(drm);
pm_runtime_get_sync(dev);
- drm_crtc_vblank_off(&malidp->crtc);
+ drm_atomic_helper_shutdown(drm);
malidp_se_irq_fini(hwdev);
malidp_de_irq_fini(hwdev);
drm->irq_enabled = false;
- drm_atomic_helper_shutdown(drm);
component_unbind_all(dev, drm);
of_node_put(malidp->crtc.port);
malidp->crtc.port = NULL;
- malidp_fini_sysfs(dev);
malidp_fini(drm);
pm_runtime_put(dev);
if (pm_runtime_enabled(dev))
@@@ -1006,7 -1033,6 +1006,7 @@@ static struct platform_driver malidp_pl
.name = "mali-dp",
.pm = &malidp_pm_ops,
.of_match_table = malidp_drm_of_match,
+ .dev_groups = mali_dp_groups,
},
};
diff --combined drivers/gpu/drm/drm_debugfs.c
index 3d7182001004,a0a1a598826f..c4b2c861101f
--- a/drivers/gpu/drm/drm_debugfs.c
+++ b/drivers/gpu/drm/drm_debugfs.c
@@@ -154,7 -154,7 +154,7 @@@ static int drm_debugfs_open(struct inod
static const struct file_operations drm_debugfs_fops = {
.owner = THIS_MODULE,
.open = drm_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -311,13 -311,13 +311,13 @@@ static ssize_t connector_write(struct f
buf[len] = '\0';
- if (!strcmp(buf, "on"))
+ if (sysfs_streq(buf, "on"))
connector->force = DRM_FORCE_ON;
- else if (!strcmp(buf, "digital"))
+ else if (sysfs_streq(buf, "digital"))
connector->force = DRM_FORCE_ON_DIGITAL;
- else if (!strcmp(buf, "off"))
+ else if (sysfs_streq(buf, "off"))
connector->force = DRM_FORCE_OFF;
- else if (!strcmp(buf, "unspecified"))
+ else if (sysfs_streq(buf, "unspecified"))
connector->force = DRM_FORCE_UNSPECIFIED;
else
return -EINVAL;
@@@ -376,28 -376,10 +376,28 @@@ static ssize_t edid_write(struct file *
return (ret) ? ret : len;
}
+/*
+ * Returns the min and max vrr vfreq through the connector's debugfs file.
+ * Example usage: cat /sys/kernel/debug/dri/0/DP-1/vrr_range
+ */
+static int vrr_range_show(struct seq_file *m, void *data)
+{
+ struct drm_connector *connector = m->private;
+
+ if (connector->status != connector_status_connected)
+ return -ENODEV;
+
+ seq_printf(m, "Min: %u\n", (u8)connector->display_info.monitor_range.min_vfreq);
+ seq_printf(m, "Max: %u\n", (u8)connector->display_info.monitor_range.max_vfreq);
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(vrr_range);
+
static const struct file_operations drm_edid_fops = {
.owner = THIS_MODULE,
.open = edid_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = edid_write
@@@ -407,7 -389,7 +407,7 @@@
static const struct file_operations drm_connector_fops = {
.owner = THIS_MODULE,
.open = connector_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = connector_write
@@@ -431,10 -413,6 +431,10 @@@ void drm_debugfs_connector_add(struct d
/* edid */
debugfs_create_file("edid_override", S_IRUGO | S_IWUSR, root, connector,
&drm_edid_fops);
+
+ /* vrr range */
+ debugfs_create_file("vrr_range", S_IRUGO, root, connector,
+ &vrr_range_fops);
}
void drm_debugfs_connector_remove(struct drm_connector *connector)
diff --combined drivers/gpu/drm/drm_mipi_dbi.c
index 79532b9a324a,d0298376d28a..0e55d8716e3d
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@@ -217,7 -217,7 +217,7 @@@ int mipi_dbi_buf_copy(void *dst, struc
switch (fb->format->format) {
case DRM_FORMAT_RGB565:
if (swap)
- drm_fb_swab16(dst, src, fb, clip);
+ drm_fb_swab(dst, src, fb, clip, !import_attach);
else
drm_fb_memcpy(dst, src, fb, clip);
break;
@@@ -268,7 -268,7 +268,7 @@@ static void mipi_dbi_fb_dirty(struct dr
bool full;
void *tr;
- if (!dbidev->enabled)
+ if (WARN_ON(!fb))
return;
if (!drm_dev_enter(fb->dev, &idx))
@@@ -314,9 -314,6 +314,9 @@@ void mipi_dbi_pipe_update(struct drm_si
struct drm_plane_state *state = pipe->plane.state;
struct drm_rect rect;
+ if (!pipe->crtc.state->active)
+ return;
+
if (drm_atomic_helper_damage_merged(old_state, state, &rect))
mipi_dbi_fb_dirty(state->fb, &rect);
}
@@@ -328,8 -325,9 +328,8 @@@ EXPORT_SYMBOL(mipi_dbi_pipe_update)
* @crtc_state: CRTC state
* @plane_state: Plane state
*
- * This function sets &mipi_dbi->enabled, flushes the whole framebuffer and
- * enables the backlight. Drivers can use this in their
- * &drm_simple_display_pipe_funcs->enable callback.
+ * Flushes the whole framebuffer and enables the backlight. Drivers can use this
+ * in their &drm_simple_display_pipe_funcs->enable callback.
*
* Note: Drivers which don't use mipi_dbi_pipe_update() because they have custom
* framebuffer flushing, can't use this function since they both use the same
@@@ -351,6 -349,7 +351,6 @@@ void mipi_dbi_enable_flush(struct mipi_
if (!drm_dev_enter(&dbidev->drm, &idx))
return;
- dbidev->enabled = true;
mipi_dbi_fb_dirty(fb, &rect);
backlight_enable(dbidev->backlight);
@@@ -391,8 -390,13 +391,8 @@@ void mipi_dbi_pipe_disable(struct drm_s
{
struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
- if (!dbidev->enabled)
- return;
-
DRM_DEBUG_KMS("\n");
- dbidev->enabled = false;
-
if (dbidev->backlight)
backlight_disable(dbidev->backlight);
else
@@@ -1275,7 -1279,7 +1275,7 @@@ static int mipi_dbi_debugfs_command_ope
static const struct file_operations mipi_dbi_debugfs_command_fops = {
.owner = THIS_MODULE,
.open = mipi_dbi_debugfs_command_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mipi_dbi_debugfs_command_write,
diff --combined drivers/gpu/drm/i915/display/intel_display_debugfs.c
index 3644752cc5ec,147448e6f750..067f24c47513
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@@ -125,7 -125,7 +125,7 @@@ static int i915_ips_status(struct seq_f
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
seq_printf(m, "Enabled by kernel parameter: %s\n",
- yesno(i915_modparams.enable_ips));
+ yesno(dev_priv->params.enable_ips));
if (INTEL_GEN(dev_priv) >= 8) {
seq_puts(m, "Currently: unknown\n");
@@@ -1009,7 -1009,7 +1009,7 @@@ static ssize_t i915_ipc_status_write(st
static const struct file_operations i915_ipc_status_fops = {
.owner = THIS_MODULE,
.open = i915_ipc_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_ipc_status_write
@@@ -1099,10 -1099,10 +1099,10 @@@ static void drrs_status_per_crtc(struc
seq_puts(m, "\n\t\t");
if (drrs->refresh_rate_type == DRRS_HIGH_RR) {
seq_puts(m, "DRRS_State: DRRS_HIGH_RR\n");
- vrefresh = panel->fixed_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->fixed_mode);
} else if (drrs->refresh_rate_type == DRRS_LOW_RR) {
seq_puts(m, "DRRS_State: DRRS_LOW_RR\n");
- vrefresh = panel->downclock_mode->vrefresh;
+ vrefresh = drm_mode_vrefresh(panel->downclock_mode);
} else {
seq_printf(m, "DRRS_State: Unknown(%d)\n",
drrs->refresh_rate_type);
@@@ -1194,7 -1194,7 +1194,7 @@@ static int i915_dp_mst_info(struct seq_
struct drm_i915_private *dev_priv = node_to_i915(m->private);
struct drm_device *dev = &dev_priv->drm;
struct intel_encoder *intel_encoder;
- struct intel_digital_port *intel_dig_port;
+ struct intel_digital_port *dig_port;
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
@@@ -1207,14 -1207,14 +1207,14 @@@
if (!intel_encoder || intel_encoder->type == INTEL_OUTPUT_DP_MST)
continue;
- intel_dig_port = enc_to_dig_port(intel_encoder);
- if (!intel_dig_port->dp.can_mst)
+ dig_port = enc_to_dig_port(intel_encoder);
+ if (!dig_port->dp.can_mst)
continue;
seq_printf(m, "MST Source Port [ENCODER:%d:%s]\n",
- intel_dig_port->base.base.base.id,
- intel_dig_port->base.base.name);
- drm_dp_mst_dump_topology(m, &intel_dig_port->dp.mst_mgr);
+ dig_port->base.base.base.id,
+ dig_port->base.base.name);
+ drm_dp_mst_dump_topology(m, &dig_port->dp.mst_mgr);
}
drm_connector_list_iter_end(&conn_iter);
@@@ -1326,7 -1326,7 +1326,7 @@@ static int i915_displayport_test_active
static const struct file_operations i915_displayport_test_active_fops = {
.owner = THIS_MODULE,
.open = i915_displayport_test_active_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_displayport_test_active_write
@@@ -1627,7 -1627,7 +1627,7 @@@ static ssize_t cur_wm_latency_write(str
static const struct file_operations i915_pri_wm_latency_fops = {
.owner = THIS_MODULE,
.open = pri_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pri_wm_latency_write
@@@ -1636,7 -1636,7 +1636,7 @@@
static const struct file_operations i915_spr_wm_latency_fops = {
.owner = THIS_MODULE,
.open = spr_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = spr_wm_latency_write
@@@ -1645,7 -1645,7 +1645,7 @@@
static const struct file_operations i915_cur_wm_latency_fops = {
.owner = THIS_MODULE,
.open = cur_wm_latency_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = cur_wm_latency_write
@@@ -1728,7 -1728,7 +1728,7 @@@ static int i915_hpd_storm_ctl_open(stru
static const struct file_operations i915_hpd_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_storm_ctl_write
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t i915_hpd_short_storm_ctl
static const struct file_operations i915_hpd_short_storm_ctl_fops = {
.owner = THIS_MODULE,
.open = i915_hpd_short_storm_ctl_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_hpd_short_storm_ctl_write,
@@@ -2179,7 -2179,7 +2179,7 @@@ static int i915_dsc_fec_support_open(st
static const struct file_operations i915_dsc_fec_support_fops = {
.owner = THIS_MODULE,
.open = i915_dsc_fec_support_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = i915_dsc_fec_support_write
@@@ -2218,8 -2218,7 +2218,8 @@@ int intel_connector_debugfs_add(struct
}
if (INTEL_GEN(dev_priv) >= 10 &&
- (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+ ((connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort &&
+ !to_intel_connector(connector)->mst_port) ||
connector->connector_type == DRM_MODE_CONNECTOR_eDP))
debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root,
connector, &i915_dsc_fec_support_fops);
diff --combined drivers/gpu/drm/i915/i915_debugfs_params.c
index 4e2b077692cb,58ef14b028ea..19518e805bd6
--- a/drivers/gpu/drm/i915/i915_debugfs_params.c
+++ b/drivers/gpu/drm/i915/i915_debugfs_params.c
@@@ -48,7 -48,7 +48,7 @@@ static ssize_t i915_param_int_write(str
static const struct file_operations i915_param_int_fops = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_int_write,
.llseek = default_llseek,
.release = single_release,
@@@ -57,7 -57,7 +57,7 @@@
static const struct file_operations i915_param_int_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_int_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -101,7 -101,7 +101,7 @@@ static ssize_t i915_param_uint_write(st
static const struct file_operations i915_param_uint_fops = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_uint_write,
.llseek = default_llseek,
.release = single_release,
@@@ -110,7 -110,7 +110,7 @@@
static const struct file_operations i915_param_uint_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_uint_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -138,6 -138,9 +138,6 @@@ static ssize_t i915_param_charp_write(s
char **s = m->private;
char *new, *old;
- /* FIXME: remove locking after params aren't the module params */
- kernel_param_lock(THIS_MODULE);
-
old = *s;
new = strndup_user(ubuf, PAGE_SIZE);
if (IS_ERR(new)) {
@@@ -149,13 -152,15 +149,13 @@@
kfree(old);
out:
- kernel_param_unlock(THIS_MODULE);
-
return len;
}
static const struct file_operations i915_param_charp_fops = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = i915_param_charp_write,
.llseek = default_llseek,
.release = single_release,
@@@ -164,7 -169,7 +164,7 @@@
static const struct file_operations i915_param_charp_fops_ro = {
.owner = THIS_MODULE,
.open = i915_param_charp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = default_llseek,
.release = single_release,
};
@@@ -224,7 -229,7 +224,7 @@@ _i915_param_create_file(struct dentry *
struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
{
struct drm_minor *minor = i915->drm.primary;
- struct i915_params *params = &i915_modparams;
+ struct i915_params *params = &i915->params;
struct dentry *dir;
dir = debugfs_create_dir("i915_params", minor->debugfs_root);
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index b0b264e30ce5,40a7ce44f717..7d603784a1a1
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@@ -499,6 -499,23 +499,6 @@@ void dpu_encoder_helper_split_config
}
}
-static void _dpu_encoder_adjust_mode(struct drm_connector *connector,
- struct drm_display_mode *adj_mode)
-{
- struct drm_display_mode *cur_mode;
-
- if (!connector || !adj_mode)
- return;
-
- list_for_each_entry(cur_mode, &connector->modes, head) {
- if (cur_mode->vdisplay == adj_mode->vdisplay &&
- cur_mode->hdisplay == adj_mode->hdisplay &&
- drm_mode_vrefresh(cur_mode) == drm_mode_vrefresh(adj_mode)) {
- adj_mode->private_flags |= cur_mode->private_flags;
- }
- }
-}
-
static struct msm_display_topology dpu_encoder_get_topology(
struct dpu_encoder_virt *dpu_enc,
struct dpu_kms *dpu_kms,
@@@ -572,6 -589,15 +572,6 @@@ static int dpu_encoder_virt_atomic_chec
global_state = dpu_kms_get_existing_global_state(dpu_kms);
trace_dpu_enc_atomic_check(DRMID(drm_enc));
- /*
- * display drivers may populate private fields of the drm display mode
- * structure while registering possible modes of a connector with DRM.
- * These private fields are not populated back while DRM invokes
- * the mode_set callbacks. This module retrieves and populates the
- * private fields of the given mode.
- */
- _dpu_encoder_adjust_mode(conn_state->connector, adj_mode);
-
/* perform atomic check on the first physical encoder (master) */
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
@@@ -604,7 -630,8 +604,7 @@@
}
}
- trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags,
- adj_mode->private_flags);
+ trace_dpu_enc_atomic_check_flags(DRMID(drm_enc), adj_mode->flags);
return ret;
}
@@@ -1858,7 -1885,7 +1858,7 @@@ static int _dpu_encoder_init_debugfs(st
static const struct file_operations debugfs_status_fops = {
.open = _dpu_encoder_debugfs_status_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 7d7171633ec8,282424a27262..b8122173cb83
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@@ -107,7 -107,7 +107,7 @@@ static const struct file_operations __p
.owner = THIS_MODULE, \
.open = __prefix ## _open, \
.release = single_release, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
}
@@@ -176,7 -176,7 +176,7 @@@ static int dpu_debugfs_open_regset32(st
static const struct file_operations dpu_fops_regset32 = {
.open = dpu_debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1115,8 -1115,6 +1115,8 @@@ static int __maybe_unused dpu_runtime_r
static const struct dev_pm_ops dpu_pm_ops = {
SET_RUNTIME_PM_OPS(dpu_runtime_suspend, dpu_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
static const struct of_device_id dpu_dt_match[] = {
diff --combined drivers/hwmon/dell-smm-hwmon.c
index ec448f5f2dc3,29ac38842962..976acbbe8ce9
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@@ -597,7 -597,7 +597,7 @@@ static int i8k_open_fs(struct inode *in
static const struct proc_ops i8k_proc_ops = {
.proc_open = i8k_open_fs,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_ioctl = i8k_ioctl,
@@@ -1187,14 -1187,6 +1187,14 @@@ static struct dmi_system_id i8k_whiteli
},
.driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
},
+ {
+ .ident = "Dell Latitude 5480",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Latitude 5480"),
+ },
+ .driver_data = (void *)&i8k_fan_control_data[I8K_FAN_34A3_35A3],
+ },
{
.ident = "Dell Latitude E6440",
.matches = {
diff --combined drivers/md/md.c
index 96b28f6d025c,0bae6c1523ce..9a9f135770b4
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@@ -199,7 -199,7 +199,7 @@@ static int rdevs_init_serial(struct mdd
static int rdev_need_serial(struct md_rdev *rdev)
{
return (rdev && rdev->mddev->bitmap_info.max_write_behind > 0 &&
- rdev->bdev->bd_queue->nr_hw_queues != 1 &&
+ rdev->bdev->bd_disk->queue->nr_hw_queues != 1 &&
test_bit(WriteMostly, &rdev->flags));
}
@@@ -463,7 -463,7 +463,7 @@@ check_suspended
}
EXPORT_SYMBOL(md_handle_request);
-static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t md_submit_bio(struct bio *bio)
{
const int rw = bio_data_dir(bio);
const int sgrp = op_stat_group(bio_op(bio));
@@@ -475,7 -475,7 +475,7 @@@
return BLK_QC_T_NONE;
}
- blk_queue_split(q, &bio);
+ blk_queue_split(&bio);
if (mddev == NULL || mddev->pers == NULL) {
bio_io_error(bio);
@@@ -549,6 -549,26 +549,6 @@@ void mddev_resume(struct mddev *mddev
}
EXPORT_SYMBOL_GPL(mddev_resume);
-int mddev_congested(struct mddev *mddev, int bits)
-{
- struct md_personality *pers = mddev->pers;
- int ret = 0;
-
- rcu_read_lock();
- if (mddev->suspended)
- ret = 1;
- else if (pers && pers->congested)
- ret = pers->congested(mddev, bits);
- rcu_read_unlock();
- return ret;
-}
-EXPORT_SYMBOL_GPL(mddev_congested);
-static int md_congested(void *data, int bits)
-{
- struct mddev *mddev = data;
- return mddev_congested(mddev, bits);
-}
-
/*
* Generic flush handling for md
*/
@@@ -5621,7 -5641,7 +5621,7 @@@ static int md_alloc(dev_t dev, char *na
mddev->hold_active = UNTIL_STOP;
error = -ENOMEM;
- mddev->queue = blk_alloc_queue(md_make_request, NUMA_NO_NODE);
+ mddev->queue = blk_alloc_queue(NUMA_NO_NODE);
if (!mddev->queue)
goto abort;
@@@ -5650,7 -5670,6 +5650,7 @@@
* remove it now.
*/
disk->flags |= GENHD_FL_EXT_DEVT;
+ disk->events |= DISK_EVENT_MEDIA_CHANGE;
mddev->gendisk = disk;
/* As soon as we call add_disk(), another thread could get
* through to md_open, so make sure it doesn't get too far
@@@ -5945,6 -5964,8 +5945,6 @@@ int md_run(struct mddev *mddev
blk_queue_flag_set(QUEUE_FLAG_NONROT, mddev->queue);
else
blk_queue_flag_clear(QUEUE_FLAG_NONROT, mddev->queue);
- mddev->queue->backing_dev_info->congested_data = mddev;
- mddev->queue->backing_dev_info->congested_fn = md_congested;
}
if (pers->sync_request) {
if (mddev->kobj.sd &&
@@@ -6329,6 -6350,7 +6329,6 @@@ static int do_md_stop(struct mddev *mdd
__md_stop_writes(mddev);
__md_stop(mddev);
- mddev->queue->backing_dev_info->congested_fn = NULL;
/* tell userspace to handle 'inactive' */
sysfs_notify_dirent_safe(mddev->sysfs_state);
@@@ -7784,21 -7806,23 +7784,21 @@@ static void md_release(struct gendisk *
mddev_put(mddev);
}
-static int md_media_changed(struct gendisk *disk)
-{
- struct mddev *mddev = disk->private_data;
-
- return mddev->changed;
-}
-
-static int md_revalidate(struct gendisk *disk)
+static unsigned int md_check_events(struct gendisk *disk, unsigned int clearing)
{
struct mddev *mddev = disk->private_data;
+ unsigned int ret = 0;
+ if (mddev->changed)
+ ret = DISK_EVENT_MEDIA_CHANGE;
mddev->changed = 0;
- return 0;
+ return ret;
}
+
static const struct block_device_operations md_fops =
{
.owner = THIS_MODULE,
+ .submit_bio = md_submit_bio,
.open = md_open,
.release = md_release,
.ioctl = md_ioctl,
@@@ -7806,7 -7830,8 +7806,7 @@@
.compat_ioctl = md_compat_ioctl,
#endif
.getgeo = md_getgeo,
- .media_changed = md_media_changed,
- .revalidate_disk= md_revalidate,
+ .check_events = md_check_events,
};
static int md_thread(void *arg)
@@@ -8276,7 -8301,7 +8276,7 @@@ static __poll_t mdstat_poll(struct fil
static const struct proc_ops mdstat_proc_ops = {
.proc_open = md_seq_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = mdstat_poll,
diff --combined drivers/media/cec/core/cec-core.c
index c599cd94dd62,87e856788e0b..6edb1e09f9fa
--- a/drivers/media/cec/core/cec-core.c
+++ b/drivers/media/cec/core/cec-core.c
@@@ -226,7 -226,7 +226,7 @@@ static int cec_error_inj_open(struct in
static const struct file_operations cec_error_inj_fops = {
.open = cec_error_inj_open,
.write = cec_error_inj_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -265,6 -265,7 +265,6 @@@ struct cec_adapter *cec_allocate_adapte
adap->sequence = 0;
adap->ops = ops;
adap->priv = priv;
- memset(adap->phys_addrs, 0xff, sizeof(adap->phys_addrs));
mutex_init(&adap->lock);
INIT_LIST_HEAD(&adap->transmit_queue);
INIT_LIST_HEAD(&adap->wait_queue);
diff --combined drivers/memory/tegra/tegra124-emc.c
index d19fb7ae230d,794431b2102c..23c44429e009
--- a/drivers/memory/tegra/tegra124-emc.c
+++ b/drivers/memory/tegra/tegra124-emc.c
@@@ -1068,7 -1068,7 +1068,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1178,11 -1178,11 +1178,11 @@@ static void emc_debugfs_init(struct dev
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root, emc,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root, emc,
&tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
diff --combined drivers/memory/tegra/tegra186-emc.c
index 8478f59db432,1445ab51af6a..1d0a12164fe7
--- a/drivers/memory/tegra/tegra186-emc.c
+++ b/drivers/memory/tegra/tegra186-emc.c
@@@ -94,7 -94,7 +94,7 @@@ static int tegra186_emc_debug_available
static const struct file_operations tegra186_emc_debug_available_rates_fops = {
.open = tegra186_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -185,7 -185,7 +185,7 @@@ static int tegra186_emc_probe(struct pl
if (IS_ERR(emc->clk)) {
err = PTR_ERR(emc->clk);
dev_err(&pdev->dev, "failed to get EMC clock: %d\n", err);
- return err;
+ goto put_bpmp;
}
platform_set_drvdata(pdev, emc);
@@@ -201,7 -201,7 +201,7 @@@
err = tegra_bpmp_transfer(emc->bpmp, &msg);
if (err < 0) {
dev_err(&pdev->dev, "failed to EMC DVFS pairs: %d\n", err);
- return err;
+ goto put_bpmp;
}
emc->debugfs.min_rate = ULONG_MAX;
@@@ -211,10 -211,8 +211,10 @@@
emc->dvfs = devm_kmalloc_array(&pdev->dev, emc->num_dvfs,
sizeof(*emc->dvfs), GFP_KERNEL);
- if (!emc->dvfs)
- return -ENOMEM;
+ if (!emc->dvfs) {
+ err = -ENOMEM;
+ goto put_bpmp;
+ }
dev_dbg(&pdev->dev, "%u DVFS pairs:\n", emc->num_dvfs);
@@@ -239,10 -237,15 +239,10 @@@
"failed to set rate range [%lu-%lu] for %pC\n",
emc->debugfs.min_rate, emc->debugfs.max_rate,
emc->clk);
- return err;
+ goto put_bpmp;
}
emc->debugfs.root = debugfs_create_dir("emc", NULL);
- if (!emc->debugfs.root) {
- dev_err(&pdev->dev, "failed to create debugfs directory\n");
- return 0;
- }
-
debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
emc, &tegra186_emc_debug_available_rates_fops);
debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
@@@ -251,10 -254,6 +251,10 @@@
emc, &tegra186_emc_debug_max_rate_fops);
return 0;
+
+put_bpmp:
+ tegra_bpmp_put(emc->bpmp);
+ return err;
}
static int tegra186_emc_remove(struct platform_device *pdev)
@@@ -268,10 -267,10 +268,10 @@@
}
static const struct of_device_id tegra186_emc_of_match[] = {
-#if defined(CONFIG_ARCH_TEGRA186_SOC)
+#if defined(CONFIG_ARCH_TEGRA_186_SOC)
{ .compatible = "nvidia,tegra186-emc" },
#endif
-#if defined(CONFIG_ARCH_TEGRA194_SOC)
+#if defined(CONFIG_ARCH_TEGRA_194_SOC)
{ .compatible = "nvidia,tegra194-emc" },
#endif
{ /* sentinel */ }
diff --combined drivers/memory/tegra/tegra20-emc.c
index 027f46287dbf,c63b14f7b356..83ca46345aba
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@@ -7,11 -7,11 +7,11 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
@@@ -144,6 -144,7 +144,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -161,13 -162,17 +161,13 @@@
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
if (!status)
return IRQ_NONE;
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT)
- complete(&emc->clk_handshake_complete);
-
/* notify about HW problem */
if (status & EMC_REFRESH_OVERFLOW_INT)
dev_err_ratelimited(emc->dev,
@@@ -219,13 -224,14 +219,13 @@@ static int emc_prepare_timing_change(st
/* wait until programming has settled */
readl_relaxed(emc->regs + emc_timing_registers[i - 1]);
- reinit_completion(&emc->clk_handshake_complete);
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc, bool flush)
{
- unsigned long timeout;
+ int err;
+ u32 v;
dev_dbg(emc->dev, "%s: flush %d\n", __func__, flush);
@@@ -236,12 -242,11 +236,12 @@@
return 0;
}
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "EMC-CAR handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
return 0;
@@@ -407,7 -412,7 +407,7 @@@ tegra_emc_find_node_by_ram_code(struct
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 emc_cfg, emc_dbg;
emc_cfg = readl_relaxed(emc->regs + EMC_CFG_2);
@@@ -541,7 -546,7 +541,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -642,11 -647,11 +642,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -681,6 -686,7 +681,6 @@@ static int tegra_emc_probe(struct platf
return -ENOMEM;
}
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = tegra_emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/memory/tegra/tegra30-emc.c
index 055af0e08a2e,2ed027408af2..e448a55cb812
--- a/drivers/memory/tegra/tegra30-emc.c
+++ b/drivers/memory/tegra/tegra30-emc.c
@@@ -11,6 -11,7 +11,6 @@@
#include <linux/clk.h>
#include <linux/clk/tegra.h>
-#include <linux/completion.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/err.h>
@@@ -326,6 -327,7 +326,6 @@@ struct emc_timing
struct tegra_emc {
struct device *dev;
struct tegra_mc *mc;
- struct completion clk_handshake_complete;
struct notifier_block clk_nb;
struct clk *clk;
void __iomem *regs;
@@@ -372,10 -374,52 +372,10 @@@ static int emc_seq_update_timing(struc
return 0;
}
-static void emc_complete_clk_change(struct tegra_emc *emc)
-{
- struct emc_timing *timing = emc->new_timing;
- unsigned int dram_num;
- bool failed = false;
- int err;
-
- /* re-enable auto-refresh */
- dram_num = tegra_mc_get_emem_device_count(emc->mc);
- writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
- emc->regs + EMC_REFCTRL);
-
- /* restore auto-calibration */
- if (emc->vref_cal_toggle)
- writel_relaxed(timing->emc_auto_cal_interval,
- emc->regs + EMC_AUTO_CAL_INTERVAL);
-
- /* restore dynamic self-refresh */
- if (timing->emc_cfg_dyn_self_ref) {
- emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
- writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
- }
-
- /* set number of clocks to wait after each ZQ command */
- if (emc->zcal_long)
- writel_relaxed(timing->emc_zcal_cnt_long,
- emc->regs + EMC_ZCAL_WAIT_CNT);
-
- /* wait for writes to settle */
- udelay(2);
-
- /* update restored timing */
- err = emc_seq_update_timing(emc);
- if (err)
- failed = true;
-
- /* restore early ACK */
- mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
-
- WRITE_ONCE(emc->bad_state, failed);
-}
-
static irqreturn_t tegra_emc_isr(int irq, void *data)
{
struct tegra_emc *emc = data;
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 status;
status = readl_relaxed(emc->regs + EMC_INTSTATUS) & intmask;
@@@ -390,6 -434,18 +390,6 @@@
/* clear interrupts */
writel_relaxed(status, emc->regs + EMC_INTSTATUS);
- /* notify about EMC-CAR handshake completion */
- if (status & EMC_CLKCHANGE_COMPLETE_INT) {
- if (completion_done(&emc->clk_handshake_complete)) {
- dev_err_ratelimited(emc->dev,
- "bogus handshake interrupt\n");
- return IRQ_NONE;
- }
-
- emc_complete_clk_change(emc);
- complete(&emc->clk_handshake_complete);
- }
-
return IRQ_HANDLED;
}
@@@ -745,58 -801,29 +745,58 @@@ static int emc_prepare_timing_change(st
*/
mc_readl(emc->mc, MC_EMEM_ARB_OVERRIDE);
- reinit_completion(&emc->clk_handshake_complete);
-
- emc->new_timing = timing;
-
return 0;
}
static int emc_complete_timing_change(struct tegra_emc *emc,
unsigned long rate)
{
- unsigned long timeout;
+ struct emc_timing *timing = emc_find_timing(emc, rate);
+ unsigned int dram_num;
+ int err;
+ u32 v;
- timeout = wait_for_completion_timeout(&emc->clk_handshake_complete,
- msecs_to_jiffies(100));
- if (timeout == 0) {
- dev_err(emc->dev, "emc-car handshake failed\n");
- return -EIO;
+ err = readl_relaxed_poll_timeout_atomic(emc->regs + EMC_INTSTATUS, v,
+ v & EMC_CLKCHANGE_COMPLETE_INT,
+ 1, 100);
+ if (err) {
+ dev_err(emc->dev, "emc-car handshake timeout: %d\n", err);
+ return err;
}
- if (READ_ONCE(emc->bad_state))
- return -EIO;
+ /* re-enable auto-refresh */
+ dram_num = tegra_mc_get_emem_device_count(emc->mc);
+ writel_relaxed(EMC_REFCTRL_ENABLE_ALL(dram_num),
+ emc->regs + EMC_REFCTRL);
+
+ /* restore auto-calibration */
+ if (emc->vref_cal_toggle)
+ writel_relaxed(timing->emc_auto_cal_interval,
+ emc->regs + EMC_AUTO_CAL_INTERVAL);
- return 0;
+ /* restore dynamic self-refresh */
+ if (timing->emc_cfg_dyn_self_ref) {
+ emc->emc_cfg |= EMC_CFG_DYN_SREF_ENABLE;
+ writel_relaxed(emc->emc_cfg, emc->regs + EMC_CFG);
+ }
+
+ /* set number of clocks to wait after each ZQ command */
+ if (emc->zcal_long)
+ writel_relaxed(timing->emc_zcal_cnt_long,
+ emc->regs + EMC_ZCAL_WAIT_CNT);
+
+ /* wait for writes to settle */
+ udelay(2);
+
+ /* update restored timing */
+ err = emc_seq_update_timing(emc);
+ if (!err)
+ emc->bad_state = false;
+
+ /* restore early ACK */
+ mc_writel(emc->mc, emc->mc_override, MC_EMEM_ARB_OVERRIDE);
+
+ return err;
}
static int emc_unprepare_timing_change(struct tegra_emc *emc,
@@@ -1006,7 -1033,7 +1006,7 @@@ static struct device_node *emc_find_nod
static int emc_setup_hw(struct tegra_emc *emc)
{
- u32 intmask = EMC_REFRESH_OVERFLOW_INT | EMC_CLKCHANGE_COMPLETE_INT;
+ u32 intmask = EMC_REFRESH_OVERFLOW_INT;
u32 fbio_cfg5, emc_cfg, emc_dbg;
enum emc_dram_type dram_type;
@@@ -1147,7 -1174,7 +1147,7 @@@ static int tegra_emc_debug_available_ra
static const struct file_operations tegra_emc_debug_available_rates_fops = {
.open = tegra_emc_debug_available_rates_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1248,11 -1275,11 +1248,11 @@@ static void tegra_emc_debugfs_init(stru
return;
}
- debugfs_create_file("available_rates", S_IRUGO, emc->debugfs.root,
+ debugfs_create_file("available_rates", 0444, emc->debugfs.root,
emc, &tegra_emc_debug_available_rates_fops);
- debugfs_create_file("min_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("min_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_min_rate_fops);
- debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
+ debugfs_create_file("max_rate", 0644, emc->debugfs.root,
emc, &tegra_emc_debug_max_rate_fops);
}
@@@ -1294,6 -1321,7 +1294,6 @@@ static int tegra_emc_probe(struct platf
if (!emc->mc)
return -EPROBE_DEFER;
- init_completion(&emc->clk_handshake_complete);
emc->clk_nb.notifier_call = emc_clk_change_notify;
emc->dev = &pdev->dev;
diff --combined drivers/mfd/ab3100-core.c
index ee71ae04b5e6,0f461180d29f..092c78b5e26f
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@@ -473,7 -473,7 +473,7 @@@ static int ab3100_registers_open(struc
static const struct file_operations ab3100_registers_fops = {
.open = ab3100_registers_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -498,7 -498,7 +498,7 @@@ static ssize_t ab3100_get_set_reg(struc
int i = 0;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((ssize_t)count, (ssize_t)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
diff --combined drivers/mfd/ab3100-otp.c
index c393102e3a39,3667fa4c9fed..3c1157e7a0c1
--- a/drivers/mfd/ab3100-otp.c
+++ b/drivers/mfd/ab3100-otp.c
@@@ -29,22 -29,22 +29,22 @@@
/**
* struct ab3100_otp
- * @dev containing device
- * @locked whether the OTP is locked, after locking, no more bits
+ * @dev: containing device
+ * @locked: whether the OTP is locked, after locking, no more bits
* can be changed but before locking it is still possible
* to change bits from 1->0.
- * @freq clocking frequency for the OTP, this frequency is either
+ * @freq: clocking frequency for the OTP, this frequency is either
* 32768Hz or 1MHz/30
- * @paf product activation flag, indicates whether this is a real
+ * @paf: product activation flag, indicates whether this is a real
* product (paf true) or a lab board etc (paf false)
- * @imeich if this is set it is possible to override the
+ * @imeich: if this is set it is possible to override the
* IMEI number found in the tac, fac and svn fields with
* (secured) software
- * @cid customer ID
- * @tac type allocation code of the IMEI
- * @fac final assembly code of the IMEI
- * @svn software version number of the IMEI
- * @debugfs a debugfs file used when dumping to file
+ * @cid: customer ID
+ * @tac: type allocation code of the IMEI
+ * @fac: final assembly code of the IMEI
+ * @svn: software version number of the IMEI
+ * @debugfs: a debugfs file used when dumping to file
*/
struct ab3100_otp {
struct device *dev;
@@@ -117,7 -117,7 +117,7 @@@ static int ab3100_otp_open(struct inod
static const struct file_operations ab3100_otp_operations = {
.open = ab3100_otp_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/mfd/ab8500-debugfs.c
index 6d1bf7c3ca3b,fcdb618fe2db..838798c98d0f
--- a/drivers/mfd/ab8500-debugfs.c
+++ b/drivers/mfd/ab8500-debugfs.c
@@@ -1376,7 -1376,7 +1376,7 @@@ static int ab8500_all_banks_open(struc
static const struct file_operations ab8500_all_banks_fops = {
.open = ab8500_all_banks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1801,7 -1801,7 +1801,7 @@@ static ssize_t ab8500_hwreg_write(struc
int buf_size, ret;
/* Get userspace string and assure termination */
- buf_size = min(count, (sizeof(buf)-1));
+ buf_size = min((int)count, (int)(sizeof(buf)-1));
if (copy_from_user(buf, user_buf, buf_size))
return -EFAULT;
buf[buf_size] = 0;
@@@ -1959,7 -1959,7 +1959,7 @@@ static ssize_t ab8500_unsubscribe_write
static const struct file_operations ab8500_bank_fops = {
.open = ab8500_bank_open,
.write = ab8500_bank_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1968,7 -1968,7 +1968,7 @@@
static const struct file_operations ab8500_address_fops = {
.open = ab8500_address_open,
.write = ab8500_address_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1977,7 -1977,7 +1977,7 @@@
static const struct file_operations ab8500_val_fops = {
.open = ab8500_val_open,
.write = ab8500_val_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1986,7 -1986,7 +1986,7 @@@
static const struct file_operations ab8500_subscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_subscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -1995,7 -1995,7 +1995,7 @@@
static const struct file_operations ab8500_unsubscribe_fops = {
.open = ab8500_subscribe_unsubscribe_open,
.write = ab8500_unsubscribe_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
@@@ -2004,7 -2004,7 +2004,7 @@@
static const struct file_operations ab8500_hwreg_fops = {
.open = ab8500_hwreg_open,
.write = ab8500_hwreg_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.owner = THIS_MODULE,
diff --combined drivers/mfd/tps65010.c
index 7e7dbee58ca9,19ed0a372389..31259867f637
--- a/drivers/mfd/tps65010.c
+++ b/drivers/mfd/tps65010.c
@@@ -290,7 -290,7 +290,7 @@@ static int dbg_tps_open(struct inode *i
static const struct file_operations debug_fops = {
.open = dbg_tps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -404,6 -404,7 +404,6 @@@ static void tps65010_work(struct work_s
tps65010_interrupt(tps);
if (test_and_clear_bit(FLAG_VBUS_CHANGED, &tps->flags)) {
- int status;
u8 chgconfig, tmp;
chgconfig = i2c_smbus_read_byte_data(tps->client,
@@@ -414,8 -415,8 +414,8 @@@
else if (tps->vbus >= 100)
chgconfig |= TPS_VBUS_CHARGING;
- status = i2c_smbus_write_byte_data(tps->client,
- TPS_CHGCONFIG, chgconfig);
+ i2c_smbus_write_byte_data(tps->client,
+ TPS_CHGCONFIG, chgconfig);
/* vbus update fails unless VBUS is connected! */
tmp = i2c_smbus_read_byte_data(tps->client, TPS_CHGCONFIG);
diff --combined drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 05f33b7e3677,3891fb39a889..424026da73cc
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@@ -229,7 -229,7 +229,7 @@@ static int cim_la_open(struct inode *in
static const struct file_operations cim_la_fops = {
.owner = THIS_MODULE,
.open = cim_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -272,7 -272,7 +272,7 @@@ static int cim_pif_la_open(struct inod
static const struct file_operations cim_pif_la_fops = {
.owner = THIS_MODULE,
.open = cim_pif_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -318,7 -318,7 +318,7 @@@ static int cim_ma_la_open(struct inode
static const struct file_operations cim_ma_la_fops = {
.owner = THIS_MODULE,
.open = cim_ma_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -411,7 -411,7 +411,7 @@@ static int cim_ibq_open(struct inode *i
static const struct file_operations cim_ibq_fops = {
.owner = THIS_MODULE,
.open = cim_ibq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -440,7 -440,7 +440,7 @@@ static int cim_obq_open(struct inode *i
static const struct file_operations cim_obq_fops = {
.owner = THIS_MODULE,
.open = cim_obq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -686,7 -686,7 +686,7 @@@ static ssize_t tp_la_write(struct file
static const struct file_operations tp_la_fops = {
.owner = THIS_MODULE,
.open = tp_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
.write = tp_la_write
@@@ -722,7 -722,7 +722,7 @@@ static int ulprx_la_open(struct inode *
static const struct file_operations ulprx_la_fops = {
.owner = THIS_MODULE,
.open = ulprx_la_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -812,7 -812,7 +812,7 @@@ static ssize_t pm_stats_clear(struct fi
static const struct file_operations pm_stats_debugfs_fops = {
.owner = THIS_MODULE,
.open = pm_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = pm_stats_clear
@@@ -1136,7 -1136,7 +1136,7 @@@ static int devlog_open(struct inode *in
static const struct file_operations devlog_fops = {
.owner = THIS_MODULE,
.open = devlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -1234,7 -1234,7 +1234,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -1317,7 -1317,7 +1317,7 @@@ static ssize_t mbox_write(struct file *
static const struct file_operations mbox_debugfs_fops = {
.owner = THIS_MODULE,
.open = mbox_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mbox_write
@@@ -1610,7 -1610,7 +1610,7 @@@ out
static const struct file_operations mps_trc_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_trc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = mps_trc_write
@@@ -1930,7 -1930,7 +1930,7 @@@ static int mps_tcam_open(struct inode *
static const struct file_operations mps_tcam_debugfs_fops = {
.owner = THIS_MODULE,
.open = mps_tcam_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2007,7 -2007,7 +2007,7 @@@ static int rss_open(struct inode *inode
static const struct file_operations rss_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2226,7 -2226,7 +2226,7 @@@ static ssize_t rss_key_write(struct fil
static const struct file_operations rss_key_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_key_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = rss_key_write
@@@ -2310,7 -2310,7 +2310,7 @@@ static int rss_pf_config_open(struct in
static const struct file_operations rss_pf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_pf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2373,7 -2373,7 +2373,7 @@@ static int rss_vf_config_open(struct in
static const struct file_operations rss_vf_config_debugfs_fops = {
.owner = THIS_MODULE,
.open = rss_vf_config_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private
};
@@@ -2561,7 -2561,7 +2561,7 @@@ static int dcb_info_open(struct inode *
static const struct file_operations dcb_info_debugfs_fops = {
.owner = THIS_MODULE,
.open = dcb_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2742,58 -2742,6 +2742,58 @@@ do {
}
r -= eth_entries;
+ for_each_port(adap, j) {
+ struct port_info *pi = adap2pinfo(adap, j);
+ const struct sge_eth_rxq *rx;
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (!pi->vi_mirror_count) {
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ if (r >= DIV_ROUND_UP(pi->nmirrorqsets, 4)) {
+ r -= DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ continue;
+ }
+
+ rx = &s->mirror_rxq[j][r * 4];
+ n = min(4, pi->nmirrorqsets - 4 * r);
+
+ S("QType:", "Mirror-Rxq");
+ S("Interface:",
+ rx[i].rspq.netdev ? rx[i].rspq.netdev->name : "N/A");
+ R("RspQ ID:", rspq.abs_id);
+ R("RspQ size:", rspq.size);
+ R("RspQE size:", rspq.iqe_len);
+ R("RspQ CIDX:", rspq.cidx);
+ R("RspQ Gen:", rspq.gen);
+ S3("u", "Intr delay:", qtimer_val(adap, &rx[i].rspq));
+ S3("u", "Intr pktcnt:", s->counter_val[rx[i].rspq.pktcnt_idx]);
+ R("FL ID:", fl.cntxt_id);
+ R("FL size:", fl.size - 8);
+ R("FL pend:", fl.pend_cred);
+ R("FL avail:", fl.avail);
+ R("FL PIDX:", fl.pidx);
+ R("FL CIDX:", fl.cidx);
+ RL("RxPackets:", stats.pkts);
+ RL("RxCSO:", stats.rx_cso);
+ RL("VLANxtract:", stats.vlan_ex);
+ RL("LROmerged:", stats.lro_merged);
+ RL("LROpackets:", stats.lro_pkts);
+ RL("RxDrops:", stats.rx_drops);
+ RL("RxBadPkts:", stats.bad_rx_pkts);
+ RL("FLAllocErr:", fl.alloc_failed);
+ RL("FLLrgAlcErr:", fl.large_alloc_failed);
+ RL("FLMapErr:", fl.mapping_err);
+ RL("FLLow:", fl.low);
+ RL("FLStarving:", fl.starving);
+
+ mutex_unlock(&pi->vi_mirror_mutex);
+ goto out;
+ }
+
if (!adap->tc_mqprio)
goto skip_mqprio;
@@@ -3150,10 -3098,9 +3150,10 @@@ unlock
return 0;
}
-static int sge_queue_entries(const struct adapter *adap)
+static int sge_queue_entries(struct adapter *adap)
{
int i, tot_uld_entries = 0, eohw_entries = 0, eosw_entries = 0;
+ int mirror_rxq_entries = 0;
if (adap->tc_mqprio) {
struct cxgb4_tc_port_mqprio *port_mqprio;
@@@ -3176,15 -3123,6 +3176,15 @@@
mutex_unlock(&adap->tc_mqprio->mqprio_mutex);
}
+ for_each_port(adap, i) {
+ struct port_info *pi = adap2pinfo(adap, i);
+
+ mutex_lock(&pi->vi_mirror_mutex);
+ if (pi->vi_mirror_count)
+ mirror_rxq_entries += DIV_ROUND_UP(pi->nmirrorqsets, 4);
+ mutex_unlock(&pi->vi_mirror_mutex);
+ }
+
if (!is_uld(adap))
goto lld_only;
@@@ -3199,7 -3137,7 +3199,7 @@@
mutex_unlock(&uld_mutex);
lld_only:
- return DIV_ROUND_UP(adap->sge.ethqsets, 4) +
+ return DIV_ROUND_UP(adap->sge.ethqsets, 4) + mirror_rxq_entries +
eohw_entries + eosw_entries + tot_uld_entries +
DIV_ROUND_UP(MAX_CTRL_QUEUES, 4) + 1;
}
@@@ -3245,7 -3183,7 +3245,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index dbe8ee7e0e21,20e74d5e837f..6983e3d55e22
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@@ -2039,7 -2039,7 +2039,7 @@@ static int mboxlog_open(struct inode *i
static const struct file_operations mboxlog_fops = {
.owner = THIS_MODULE,
.open = mboxlog_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2192,7 -2192,7 +2192,7 @@@ static int sge_qinfo_open(struct inode
static const struct file_operations sge_qinfo_debugfs_fops = {
.owner = THIS_MODULE,
.open = sge_qinfo_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2338,7 -2338,7 +2338,7 @@@ static int sge_qstats_open(struct inod
static const struct file_operations sge_qstats_proc_fops = {
.owner = THIS_MODULE,
.open = sge_qstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2436,7 -2436,7 +2436,7 @@@ static int interfaces_open(struct inod
static const struct file_operations interfaces_proc_fops = {
.owner = THIS_MODULE,
.open = interfaces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2916,39 -2916,6 +2916,39 @@@ static const struct net_device_ops cxgb
#endif
};
+/**
+ * cxgb4vf_get_port_mask - Get port mask for the VF based on mac
+ * address stored on the adapter
+ * @adapter: The adapter
+ *
+ * Find the the port mask for the VF based on the index of mac
+ * address stored in the adapter. If no mac address is stored on
+ * the adapter for the VF, use the port mask received from the
+ * firmware.
+ */
+static unsigned int cxgb4vf_get_port_mask(struct adapter *adapter)
+{
+ unsigned int naddr = 1, pidx = 0;
+ unsigned int pmask, rmask = 0;
+ u8 mac[ETH_ALEN];
+ int err;
+
+ pmask = adapter->params.vfres.pmask;
+ while (pmask) {
+ if (pmask & 1) {
+ err = t4vf_get_vf_mac_acl(adapter, pidx, &naddr, mac);
+ if (!err && !is_zero_ether_addr(mac))
+ rmask |= (1 << pidx);
+ }
+ pmask >>= 1;
+ pidx++;
+ }
+ if (!rmask)
+ rmask = adapter->params.vfres.pmask;
+
+ return rmask;
+}
+
/*
* "Probe" a device: initialize a device and construct all kernel and driver
* state needed to manage the device. This routine is called "init_one" in
@@@ -2957,12 -2924,13 +2957,12 @@@
static int cxgb4vf_pci_probe(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
- int pci_using_dac;
- int err, pidx;
- unsigned int pmask;
struct adapter *adapter;
- struct port_info *pi;
struct net_device *netdev;
- unsigned int pf;
+ struct port_info *pi;
+ unsigned int pmask;
+ int pci_using_dac;
+ int err, pidx;
/*
* Initialize generic PCI device state.
@@@ -3105,7 -3073,8 +3105,7 @@@
/*
* Allocate our "adapter ports" and stitch everything together.
*/
- pmask = adapter->params.vfres.pmask;
- pf = t4vf_get_pf_from_vf(adapter);
+ pmask = cxgb4vf_get_port_mask(adapter);
for_each_port(adapter, pidx) {
int port_id, viid;
u8 mac[ETH_ALEN];
@@@ -3188,7 -3157,7 +3188,7 @@@
goto err_free_dev;
}
- err = t4vf_get_vf_mac_acl(adapter, pf, &naddr, mac);
+ err = t4vf_get_vf_mac_acl(adapter, port_id, &naddr, mac);
if (err) {
dev_err(&pdev->dev,
"unable to determine MAC ACL address, "
diff --combined drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
index 56d9927fbfda,bc99fe0aabf0..f80f94e1e10a
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c
@@@ -21,7 -21,7 +21,7 @@@ static int dpaa2_dbg_cpu_show(struct se
seq_printf(file, "Per-CPU stats for %s\n", priv->net_dev->name);
seq_printf(file, "%s%16s%16s%16s%16s%16s%16s%16s%16s%16s\n",
"CPU", "Rx", "Rx Err", "Rx SG", "Tx", "Tx Err", "Tx conf",
- "Tx SG", "Tx realloc", "Enq busy");
+ "Tx SG", "Tx converted to SG", "Enq busy");
for_each_online_cpu(i) {
stats = per_cpu_ptr(priv->percpu_stats, i);
@@@ -35,7 -35,7 +35,7 @@@
stats->tx_errors,
extras->tx_conf_frames,
extras->tx_sg_frames,
- extras->tx_reallocs,
+ extras->tx_converted_sg_frames,
extras->tx_portal_busy);
}
@@@ -56,7 -56,7 +56,7 @@@ static int dpaa2_dbg_cpu_open(struct in
static const struct file_operations dpaa2_dbg_cpu_ops = {
.open = dpaa2_dbg_cpu_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -90,10 -90,6 +90,10 @@@ static int dpaa2_dbg_fqs_show(struct se
if (err)
fcnt = 0;
+ /* Skip FQs with no traffic */
+ if (!fq->stats.frames && !fcnt)
+ continue;
+
seq_printf(file, "%5d%16d%16d%16s%16llu%16u\n",
fq->fqid,
fq->target_cpu,
@@@ -120,7 -116,7 +120,7 @@@ static int dpaa2_dbg_fqs_open(struct in
static const struct file_operations dpaa2_dbg_fq_ops = {
.open = dpaa2_dbg_fqs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -165,7 -161,7 +165,7 @@@ static int dpaa2_dbg_ch_open(struct ino
static const struct file_operations dpaa2_dbg_ch_ops = {
.open = dpaa2_dbg_ch_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
index 267ad4eddb5c,cf3b7ec4db73..a3a1691e5ed9
--- a/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/debugfs.c
@@@ -260,7 -260,7 +260,7 @@@ struct hcmd_write_data
__be32 cmd_id;
__be32 flags;
__be16 length;
- u8 data[0];
+ u8 data[];
} __packed;
static ssize_t iwl_dbgfs_send_hcmd_write(struct iwl_fw_runtime *fwrt, char *buf,
@@@ -419,7 -419,7 +419,7 @@@ static int iwl_dbgfs_fw_info_open(struc
static const struct file_operations iwl_dbgfs_fw_info_ops = {
.owner = THIS_MODULE,
.open = iwl_dbgfs_fw_info_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
diff --combined drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
index d06afcf46d67,c61bd9803078..e356d9ec5957
--- a/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/debugfs.c
@@@ -181,7 -181,7 +181,7 @@@ mt7615_ampdu_stat_open(struct inode *in
static const struct file_operations fops_ampdu_stat = {
.open = mt7615_ampdu_stat_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -234,11 -234,10 +234,11 @@@ mt7615_queues_acq(struct seq_file *s, v
int i;
for (i = 0; i < 16; i++) {
- int j, acs = i / 4, index = i % 4;
+ int j, wmm_idx = i % MT7615_MAX_WMM_SETS;
+ int acs = i / MT7615_MAX_WMM_SETS;
u32 ctrl, val, qlen = 0;
- val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, index));
+ val = mt76_rr(dev, MT_PLE_AC_QEMPTY(acs, wmm_idx));
ctrl = BIT(31) | BIT(15) | (acs << 8);
for (j = 0; j < 32; j++) {
@@@ -246,11 -245,11 +246,11 @@@
continue;
mt76_wr(dev, MT_PLE_FL_Q0_CTRL,
- ctrl | (j + (index << 5)));
+ ctrl | (j + (wmm_idx << 5)));
qlen += mt76_get_field(dev, MT_PLE_FL_Q3_CTRL,
GENMASK(11, 0));
}
- seq_printf(s, "AC%d%d: queued=%d\n", acs, index, qlen);
+ seq_printf(s, "AC%d%d: queued=%d\n", wmm_idx, acs, qlen);
}
return 0;
diff --combined drivers/net/xen-netback/xenbus.c
index 7e62a6ee7622,06b253eba25d..aad7e526eb5f
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@@ -152,7 -152,7 +152,7 @@@ static int xenvif_io_ring_open(struct i
static const struct file_operations xenvif_dbg_io_ring_ops_fops = {
.owner = THIS_MODULE,
.open = xenvif_io_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = xenvif_write_io_ring,
@@@ -393,24 -393,6 +393,24 @@@ static void set_backend_state(struct ba
}
}
+static void read_xenbus_frontend_xdp(struct backend_info *be,
+ struct xenbus_device *dev)
+{
+ struct xenvif *vif = be->vif;
+ u16 headroom;
+ int err;
+
+ err = xenbus_scanf(XBT_NIL, dev->otherend,
+ "xdp-headroom", "%hu", &headroom);
+ if (err != 1) {
+ vif->xdp_headroom = 0;
+ return;
+ }
+ if (headroom > XEN_NETIF_MAX_XDP_HEADROOM)
+ headroom = XEN_NETIF_MAX_XDP_HEADROOM;
+ vif->xdp_headroom = headroom;
+}
+
/**
* Callback received when the frontend's state changes.
*/
@@@ -435,11 -417,6 +435,11 @@@ static void frontend_changed(struct xen
set_backend_state(be, XenbusStateConnected);
break;
+ case XenbusStateReconfiguring:
+ read_xenbus_frontend_xdp(be, dev);
+ xenbus_switch_state(dev, XenbusStateReconfigured);
+ break;
+
case XenbusStateClosing:
set_backend_state(be, XenbusStateClosing);
break;
@@@ -970,8 -947,6 +970,8 @@@ static int read_xenbus_vif_flags(struc
vif->ipv6_csum = !!xenbus_read_unsigned(dev->otherend,
"feature-ipv6-csum-offload", 0);
+ read_xenbus_frontend_xdp(be, dev);
+
return 0;
}
@@@ -1061,15 -1036,6 +1061,15 @@@ static int netback_probe(struct xenbus_
goto abort_transaction;
}
+ /* we can adjust a headroom for netfront XDP processing */
+ err = xenbus_printf(xbt, dev->nodename,
+ "feature-xdp-headroom", "%d",
+ provides_xdp_headroom);
+ if (err) {
+ message = "writing feature-xdp-headroom";
+ goto abort_transaction;
+ }
+
/* We don't support rx-flip path (except old guests who
* don't grok this feature flag).
*/
diff --combined drivers/pci/controller/pci-tegra.c
index 71bf4b2684ac,bfb8dbc2d0ea..66386f742bd7
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@@ -1462,7 -1462,7 +1462,7 @@@ static int tegra_pcie_get_resources(str
{
struct device *dev = pcie->dev;
struct platform_device *pdev = to_platform_device(dev);
- struct resource *pads, *afi, *res;
+ struct resource *res;
const struct tegra_pcie_soc *soc = pcie->soc;
int err;
@@@ -1486,13 -1486,15 +1486,13 @@@
}
}
- pads = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pads");
- pcie->pads = devm_ioremap_resource(dev, pads);
+ pcie->pads = devm_platform_ioremap_resource_byname(pdev, "pads");
if (IS_ERR(pcie->pads)) {
err = PTR_ERR(pcie->pads);
goto phys_put;
}
- afi = platform_get_resource_byname(pdev, IORESOURCE_MEM, "afi");
- pcie->afi = devm_ioremap_resource(dev, afi);
+ pcie->afi = devm_platform_ioremap_resource_byname(pdev, "afi");
if (IS_ERR(pcie->afi)) {
err = PTR_ERR(pcie->afi);
goto phys_put;
@@@ -2632,7 -2634,7 +2632,7 @@@ static int tegra_pcie_ports_open(struc
static const struct file_operations tegra_pcie_ports_ops = {
.owner = THIS_MODULE,
.open = tegra_pcie_ports_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -2668,6 -2670,7 +2668,6 @@@ static int tegra_pcie_probe(struct plat
struct device *dev = &pdev->dev;
struct pci_host_bridge *host;
struct tegra_pcie *pcie;
- struct pci_bus *child;
struct resource *bus;
int err;
@@@ -2718,12 -2721,20 +2718,12 @@@
host->map_irq = tegra_pcie_map_irq;
host->swizzle_irq = pci_common_swizzle;
- err = pci_scan_root_bus_bridge(host);
+ err = pci_host_probe(host);
if (err < 0) {
dev_err(dev, "failed to register host: %d\n", err);
goto pm_runtime_put;
}
- pci_bus_size_bridges(host->bus);
- pci_bus_assign_resources(host->bus);
-
- list_for_each_entry(child, &host->bus->children, node)
- pcie_bus_configure_settings(child);
-
- pci_bus_add_devices(host->bus);
-
if (IS_ENABLED(CONFIG_DEBUG_FS)) {
err = tegra_pcie_debugfs_init(pcie);
if (err < 0)
diff --combined drivers/platform/x86/asus-wmi.c
index 8f4acdc06b13,9efa854fff13..13f7d1bf076b
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@@ -441,7 -441,6 +441,7 @@@ static int asus_wmi_battery_add(struct
* battery is named BATT.
*/
if (strcmp(battery->desc->name, "BAT0") != 0 &&
+ strcmp(battery->desc->name, "BAT1") != 0 &&
strcmp(battery->desc->name, "BATT") != 0)
return -ENODEV;
@@@ -2503,7 -2502,7 +2503,7 @@@ static int asus_wmi_debugfs_open(struc
static const struct file_operations asus_wmi_debugfs_io_ops = {
.owner = THIS_MODULE,
.open = asus_wmi_debugfs_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/platform/x86/intel_pmc_core.c
index 338ea5222555,4941349004f6..e0bee021d044
--- a/drivers/platform/x86/intel_pmc_core.c
+++ b/drivers/platform/x86/intel_pmc_core.c
@@@ -415,7 -415,7 +415,7 @@@ static const struct pmc_bit_map tgl_lpm
{"PCIe_Gen3PLL_OFF_STS", BIT(20)},
{"OPIOPLL_OFF_STS", BIT(21)},
{"OCPLL_OFF_STS", BIT(22)},
- {"AudioPLL_OFF_STS", BIT(23)},
+ {"MainPLL_OFF_STS", BIT(23)},
{"MIPIPLL_OFF_STS", BIT(24)},
{"Fast_XTAL_Osc_OFF_STS", BIT(25)},
{"AC_Ring_Osc_OFF_STS", BIT(26)},
@@@ -795,7 -795,7 +795,7 @@@ static int pmc_core_mphy_pg_show(struc
msleep(10);
val_high = pmc_core_reg_read(pmcdev, SPT_PMC_MFPMC_OFFSET);
- for (index = 0; map[index].name && index < 8; index++) {
+ for (index = 0; index < 8 && map[index].name; index++) {
seq_printf(s, "%-32s\tState: %s\n",
map[index].name,
map[index].bit_mask & val_low ? "Not power gated" :
@@@ -894,7 -894,7 +894,7 @@@ static int pmc_core_ltr_ignore_open(str
static const struct file_operations pmc_core_ltr_ignore_ops = {
.open = pmc_core_ltr_ignore_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = pmc_core_ltr_ignore_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined drivers/pwm/core.c
index 276e939a5684,ad39b0bb0b03..a7037136d49f
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@@ -510,12 -510,12 +510,12 @@@ static void pwm_apply_state_debug(struc
last->period > s2.period &&
last->period <= state->period)
dev_warn(chip->dev,
- ".apply didn't pick the best available period (requested: %u, applied: %u, possible: %u)\n",
+ ".apply didn't pick the best available period (requested: %llu, applied: %llu, possible: %llu)\n",
state->period, s2.period, last->period);
if (state->enabled && state->period < s2.period)
dev_warn(chip->dev,
- ".apply is supposed to round down period (requested: %u, applied: %u)\n",
+ ".apply is supposed to round down period (requested: %llu, applied: %llu)\n",
state->period, s2.period);
if (state->enabled &&
@@@ -524,14 -524,14 +524,14 @@@
last->duty_cycle > s2.duty_cycle &&
last->duty_cycle <= state->duty_cycle)
dev_warn(chip->dev,
- ".apply didn't pick the best available duty cycle (requested: %u/%u, applied: %u/%u, possible: %u/%u)\n",
+ ".apply didn't pick the best available duty cycle (requested: %llu/%llu, applied: %llu/%llu, possible: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period,
last->duty_cycle, last->period);
if (state->enabled && state->duty_cycle < s2.duty_cycle)
dev_warn(chip->dev,
- ".apply is supposed to round down duty_cycle (requested: %u/%u, applied: %u/%u)\n",
+ ".apply is supposed to round down duty_cycle (requested: %llu/%llu, applied: %llu/%llu)\n",
state->duty_cycle, state->period,
s2.duty_cycle, s2.period);
@@@ -558,7 -558,7 +558,7 @@@
(s1.enabled && s1.period != last->period) ||
(s1.enabled && s1.duty_cycle != last->duty_cycle)) {
dev_err(chip->dev,
- ".apply is not idempotent (ena=%d pol=%d %u/%u) -> (ena=%d pol=%d %u/%u)\n",
+ ".apply is not idempotent (ena=%d pol=%d %llu/%llu) -> (ena=%d pol=%d %llu/%llu)\n",
s1.enabled, s1.polarity, s1.duty_cycle, s1.period,
last->enabled, last->polarity, last->duty_cycle,
last->period);
@@@ -1284,8 -1284,8 +1284,8 @@@ static void pwm_dbg_show(struct pwm_chi
if (state.enabled)
seq_puts(s, " enabled");
- seq_printf(s, " period: %u ns", state.period);
- seq_printf(s, " duty: %u ns", state.duty_cycle);
+ seq_printf(s, " period: %llu ns", state.period);
+ seq_printf(s, " duty: %llu ns", state.duty_cycle);
seq_printf(s, " polarity: %s",
state.polarity ? "inverse" : "normal");
@@@ -1342,7 -1342,7 +1342,7 @@@ static int pwm_seq_open(struct inode *i
static const struct file_operations pwm_debugfs_ops = {
.owner = THIS_MODULE,
.open = pwm_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined drivers/s390/block/dasd.c
index eb17fea8075c,17a9a35e9aed..20f256e6d38b
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@@ -1089,7 -1089,7 +1089,7 @@@ static int dasd_stats_open(struct inod
static const struct file_operations dasd_stats_raw_fops = {
.owner = THIS_MODULE,
.open = dasd_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
.write = dasd_stats_write,
@@@ -2802,7 -2802,7 +2802,7 @@@ static void __dasd_cleanup_cqr(struct d
blk_update_request(req, BLK_STS_OK,
blk_rq_bytes(req) - proc_bytes);
blk_mq_requeue_request(req, true);
- } else {
+ } else if (likely(!blk_should_fake_timeout(req->q))) {
blk_mq_complete_request(req);
}
}
diff --combined drivers/soc/qcom/socinfo.c
index e19102f46302,ab2a56c75f13..d9c64a78e49c
--- a/drivers/soc/qcom/socinfo.c
+++ b/drivers/soc/qcom/socinfo.c
@@@ -24,7 -24,6 +24,7 @@@
#define SOCINFO_VERSION(maj, min) ((((maj) & 0xffff) << 16)|((min) & 0xffff))
#define SMEM_SOCINFO_BUILD_ID_LENGTH 32
+#define SMEM_SOCINFO_CHIP_ID_LENGTH 32
/*
* SMEM item id, used to acquire handles to respective
@@@ -122,16 -121,6 +122,16 @@@ struct socinfo
__le32 chip_family;
__le32 raw_device_family;
__le32 raw_device_num;
+ /* Version 13 */
+ __le32 nproduct_id;
+ char chip_id[SMEM_SOCINFO_CHIP_ID_LENGTH];
+ /* Version 14 */
+ __le32 num_clusters;
+ __le32 ncluster_array_offset;
+ __le32 num_defective_parts;
+ __le32 ndefective_parts_array_offset;
+ /* Version 15 */
+ __le32 nmodem_supported;
};
#ifdef CONFIG_DEBUG_FS
@@@ -146,12 -135,6 +146,12 @@@ struct socinfo_params
u32 raw_ver;
u32 hw_plat;
u32 fmt;
+ u32 nproduct_id;
+ u32 num_clusters;
+ u32 ncluster_array_offset;
+ u32 num_defective_parts;
+ u32 ndefective_parts_array_offset;
+ u32 nmodem_supported;
};
struct smem_image_version {
@@@ -219,10 -202,8 +219,10 @@@ static const struct soc_id soc_id[] =
{ 310, "MSM8996AU" },
{ 311, "APQ8096AU" },
{ 312, "APQ8096SG" },
+ { 318, "SDM630" },
{ 321, "SDM845" },
{ 341, "SDA845" },
+ { 356, "SM8250" },
};
static const char *socinfo_machine(struct device *dev, unsigned int id)
@@@ -247,7 -228,7 +247,7 @@@ static int qcom_open_##name(struct inod
\
static const struct file_operations qcom_ ##name## _ops = { \
.open = qcom_open_##name, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -275,10 -256,7 +275,10 @@@ static int qcom_show_pmic_model(struct
if (model < 0)
return -EINVAL;
- seq_printf(seq, "%s\n", pmic_models[model]);
+ if (model <= ARRAY_SIZE(pmic_models) && pmic_models[model])
+ seq_printf(seq, "%s\n", pmic_models[model]);
+ else
+ seq_printf(seq, "unknown (%d)\n", model);
return 0;
}
@@@ -294,19 -272,9 +294,19 @@@ static int qcom_show_pmic_die_revision(
return 0;
}
+static int qcom_show_chip_id(struct seq_file *seq, void *p)
+{
+ struct socinfo *socinfo = seq->private;
+
+ seq_printf(seq, "%s\n", socinfo->chip_id);
+
+ return 0;
+}
+
QCOM_OPEN(build_id, qcom_show_build_id);
QCOM_OPEN(pmic_model, qcom_show_pmic_model);
QCOM_OPEN(pmic_die_rev, qcom_show_pmic_die_revision);
+QCOM_OPEN(chip_id, qcom_show_chip_id);
#define DEFINE_IMAGE_OPS(type) \
static int show_image_##type(struct seq_file *seq, void *p) \
@@@ -323,7 -291,7 +323,7 @@@ static int open_image_##type(struct ino
\
static const struct file_operations qcom_image_##type##_ops = { \
.open = open_image_##type, \
- .read = seq_read, \
+ .read_iter = seq_read_iter, \
.llseek = seq_lseek, \
.release = single_release, \
}
@@@ -344,38 -312,7 +344,38 @@@ static void socinfo_debugfs_init(struc
qcom_socinfo->info.fmt = __le32_to_cpu(info->fmt);
+ debugfs_create_x32("info_fmt", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.fmt);
+
switch (qcom_socinfo->info.fmt) {
+ case SOCINFO_VERSION(0, 15):
+ qcom_socinfo->info.nmodem_supported = __le32_to_cpu(info->nmodem_supported);
+
+ debugfs_create_u32("nmodem_supported", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nmodem_supported);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 14):
+ qcom_socinfo->info.num_clusters = __le32_to_cpu(info->num_clusters);
+ qcom_socinfo->info.ncluster_array_offset = __le32_to_cpu(info->ncluster_array_offset);
+ qcom_socinfo->info.num_defective_parts = __le32_to_cpu(info->num_defective_parts);
+ qcom_socinfo->info.ndefective_parts_array_offset = __le32_to_cpu(info->ndefective_parts_array_offset);
+
+ debugfs_create_u32("num_clusters", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_clusters);
+ debugfs_create_u32("ncluster_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ncluster_array_offset);
+ debugfs_create_u32("num_defective_parts", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.num_defective_parts);
+ debugfs_create_u32("ndefective_parts_array_offset", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.ndefective_parts_array_offset);
+ /* Fall through */
+ case SOCINFO_VERSION(0, 13):
+ qcom_socinfo->info.nproduct_id = __le32_to_cpu(info->nproduct_id);
+
+ debugfs_create_u32("nproduct_id", 0400, qcom_socinfo->dbg_root,
+ &qcom_socinfo->info.nproduct_id);
+ DEBUGFS_ADD(info, chip_id);
+ /* Fall through */
case SOCINFO_VERSION(0, 12):
qcom_socinfo->info.chip_family =
__le32_to_cpu(info->chip_family);
diff --combined drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index c52540b734fd,e198779db6fc..a47d32a2166f
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@@ -9,6 -9,22 +9,6 @@@
* <jkmaline(a)cc.hut.fi>
* Copyright (c) 2002-2003, Jouni Malinen <jkmaline(a)cc.hut.fi>
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
* Contact Information:
* James P. Ketrenos <ipw2100-admin(a)linux.intel.com>
* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
@@@ -249,7 -265,7 +249,7 @@@ static int open_debug_level(struct inod
static const struct proc_ops debug_level_proc_ops = {
.proc_open = open_debug_level,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = write_debug_level,
.proc_release = single_release,
diff --combined drivers/usb/chipidea/debug.c
index da5d18cf6840,d734b97a7327..31a6fdcb7620
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@@ -18,7 -18,7 +18,7 @@@
#include "bits.h"
#include "otg.h"
-/**
+/*
* ci_device_show: prints information about device capabilities and status
*/
static int ci_device_show(struct seq_file *s, void *data)
@@@ -47,7 -47,7 +47,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_device);
-/**
+/*
* ci_port_test_show: reads port test mode
*/
static int ci_port_test_show(struct seq_file *s, void *data)
@@@ -67,7 -67,7 +67,7 @@@
return 0;
}
-/**
+/*
* ci_port_test_write: writes port test mode
*/
static ssize_t ci_port_test_write(struct file *file, const char __user *ubuf,
@@@ -110,12 -110,12 +110,12 @@@ static int ci_port_test_open(struct ino
static const struct file_operations ci_port_test_fops = {
.open = ci_port_test_open,
.write = ci_port_test_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
-/**
+/*
* ci_qheads_show: DMA contents of all queue heads
*/
static int ci_qheads_show(struct seq_file *s, void *data)
@@@ -147,7 -147,7 +147,7 @@@
}
DEFINE_SHOW_ATTRIBUTE(ci_qheads);
-/**
+/*
* ci_requests_show: DMA contents of all requests currently queued (all endpts)
*/
static int ci_requests_show(struct seq_file *s, void *data)
@@@ -296,7 -296,7 +296,7 @@@ static int ci_role_open(struct inode *i
static const struct file_operations ci_role_fops = {
.open = ci_role_open,
.write = ci_role_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc2/debugfs.c
index aaafd463d72a,19a083e4f396..5a9586a6432f
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@@ -37,15 -37,15 +37,15 @@@ static ssize_t testmode_write(struct fi
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -78,19 -78,19 +78,19 @@@ static int testmode_show(struct seq_fil
case 0:
seq_puts(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_puts(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_puts(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_puts(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_puts(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_puts(s, "test_force_enable\n");
break;
default:
@@@ -109,7 -109,7 +109,7 @@@ static const struct file_operations tes
.owner = THIS_MODULE,
.open = testmode_open,
.write = testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/dwc3/debugfs.c
index 14dc6a37305d,14c075ad29f9..22706bb23e04
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@@ -380,7 -380,7 +380,7 @@@ static ssize_t dwc3_lsp_write(struct fi
static const struct file_operations dwc3_lsp_fops = {
.open = dwc3_lsp_open,
.write = dwc3_lsp_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -445,7 -445,7 +445,7 @@@ static ssize_t dwc3_mode_write(struct f
static const struct file_operations dwc3_mode_fops = {
.open = dwc3_mode_open,
.write = dwc3_mode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -466,19 -466,19 +466,19 @@@ static int dwc3_testmode_show(struct se
case 0:
seq_printf(s, "no test\n");
break;
- case TEST_J:
+ case USB_TEST_J:
seq_printf(s, "test_j\n");
break;
- case TEST_K:
+ case USB_TEST_K:
seq_printf(s, "test_k\n");
break;
- case TEST_SE0_NAK:
+ case USB_TEST_SE0_NAK:
seq_printf(s, "test_se0_nak\n");
break;
- case TEST_PACKET:
+ case USB_TEST_PACKET:
seq_printf(s, "test_packet\n");
break;
- case TEST_FORCE_EN:
+ case USB_TEST_FORCE_ENABLE:
seq_printf(s, "test_force_enable\n");
break;
default:
@@@ -506,15 -506,15 +506,15 @@@ static ssize_t dwc3_testmode_write(stru
return -EFAULT;
if (!strncmp(buf, "test_j", 6))
- testmode = TEST_J;
+ testmode = USB_TEST_J;
else if (!strncmp(buf, "test_k", 6))
- testmode = TEST_K;
+ testmode = USB_TEST_K;
else if (!strncmp(buf, "test_se0_nak", 12))
- testmode = TEST_SE0_NAK;
+ testmode = USB_TEST_SE0_NAK;
else if (!strncmp(buf, "test_packet", 11))
- testmode = TEST_PACKET;
+ testmode = USB_TEST_PACKET;
else if (!strncmp(buf, "test_force_enable", 17))
- testmode = TEST_FORCE_EN;
+ testmode = USB_TEST_FORCE_ENABLE;
else
testmode = 0;
@@@ -528,7 -528,7 +528,7 @@@
static const struct file_operations dwc3_testmode_fops = {
.open = dwc3_testmode_open,
.write = dwc3_testmode_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -620,7 -620,7 +620,7 @@@ static ssize_t dwc3_link_state_write(st
static const struct file_operations dwc3_link_state_fops = {
.open = dwc3_link_state_open,
.write = dwc3_link_state_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined drivers/usb/gadget/udc/lpc32xx_udc.c
index e8a4637a9a17,bac74bb67290..e79f5f286cbb
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@@ -532,7 -532,7 +532,7 @@@ static int proc_udc_open(struct inode *
static const struct file_operations proc_ops = {
.owner = THIS_MODULE,
.open = proc_udc_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1926,7 -1926,7 +1926,7 @@@ static const struct usb_ep_ops lpc32xx_
};
/* Send a ZLP on a non-0 IN EP */
-void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_send_in_zlp(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
/* Clear EP status */
udc_clearep_getsts(udc, ep->hwep_num);
@@@ -1940,7 -1940,7 +1940,7 @@@
* This function will only be called when a delayed ZLP needs to be sent out
* after a DMA transfer has filled both buffers.
*/
-void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
+static void udc_handle_eps(struct lpc32xx_udc *udc, struct lpc32xx_ep *ep)
{
u32 epstatus;
struct lpc32xx_request *req;
@@@ -2986,7 -2986,7 +2986,7 @@@ static void lpc32xx_rmwkup_chg(int remo
/* Enable or disable USB remote wakeup */
}
-struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
+static struct lpc32xx_usbd_cfg lpc32xx_usbddata = {
.vbus_drv_pol = 0,
.conn_chgb = &lpc32xx_usbd_conn_chg,
.susp_chgb = &lpc32xx_usbd_susp_chg,
diff --combined drivers/usb/host/xhci-debugfs.c
index 92e25a62fdb5,4a640031d944..8b6747b53434
--- a/drivers/usb/host/xhci-debugfs.c
+++ b/drivers/usb/host/xhci-debugfs.c
@@@ -110,7 -110,6 +110,7 @@@ static void xhci_debugfs_free_regset(st
kfree(regset);
}
+__printf(6, 7)
static void xhci_debugfs_regset(struct xhci_hcd *xhci, u32 base,
const struct debugfs_reg32 *regs,
size_t nregs, struct dentry *parent,
@@@ -249,7 -248,7 +249,7 @@@ static int xhci_ring_open(struct inode
static const struct file_operations xhci_ring_fops = {
.open = xhci_ring_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -330,7 -329,7 +330,7 @@@ static int xhci_context_open(struct ino
static const struct file_operations xhci_context_fops = {
.open = xhci_context_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -391,7 -390,7 +391,7 @@@ static ssize_t xhci_port_write(struct f
static const struct file_operations port_fops = {
.open = xhci_port_open,
.write = xhci_port_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
diff --combined fs/affs/file.c
index a26a0f96c119,7d51cc2e3dab..87d23705135b
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@@ -14,7 -14,6 +14,7 @@@
*/
#include <linux/uio.h>
+#include <linux/blkdev.h>
#include "affs.h"
static struct buffer_head *affs_get_extblock_slow(struct inode *inode, u32 ext);
@@@ -976,7 -975,6 +976,6 @@@ const struct file_operations affs_file_
.open = affs_file_open,
.release = affs_file_release,
.fsync = affs_file_fsync,
- .splice_read = generic_file_splice_read,
};
const struct inode_operations affs_file_inode_operations = {
diff --combined fs/block_dev.c
index 1a84168f7cf3,0aa66a6075eb..64c4fe8181f2
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@@ -105,7 -105,16 +105,7 @@@ EXPORT_SYMBOL(invalidate_bdev)
static void set_init_blocksize(struct block_device *bdev)
{
- unsigned bsize = bdev_logical_block_size(bdev);
- loff_t size = i_size_read(bdev->bd_inode);
-
- while (bsize < PAGE_SIZE) {
- if (size & bsize)
- break;
- bsize <<= 1;
- }
- bdev->bd_block_size = bsize;
- bdev->bd_inode->i_blkbits = blksize_bits(bsize);
+ bdev->bd_inode->i_blkbits = blksize_bits(bdev_logical_block_size(bdev));
}
int set_blocksize(struct block_device *bdev, int size)
@@@ -119,8 -128,9 +119,8 @@@
return -EINVAL;
/* Don't change the size if it is same as current */
- if (bdev->bd_block_size != size) {
+ if (bdev->bd_inode->i_blkbits != blksize_bits(size)) {
sync_blockdev(bdev);
- bdev->bd_block_size = size;
bdev->bd_inode->i_blkbits = blksize_bits(size);
kill_bdev(bdev);
}
@@@ -693,12 -703,12 +693,12 @@@ int bdev_read_page(struct block_device
if (!ops->rw_page || bdev_get_integrity(bdev))
return result;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
result = ops->rw_page(bdev, sector + get_start_sect(bdev), page,
REQ_OP_READ);
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -729,7 -739,7 +729,7 @@@ int bdev_write_page(struct block_devic
if (!ops->rw_page || bdev_get_integrity(bdev))
return -EOPNOTSUPP;
- result = blk_queue_enter(bdev->bd_queue, 0);
+ result = blk_queue_enter(bdev->bd_disk->queue, 0);
if (result)
return result;
@@@ -742,7 -752,7 +742,7 @@@
clean_page_buffers(page);
unlock_page(page);
}
- blk_queue_exit(bdev->bd_queue);
+ blk_queue_exit(bdev->bd_disk->queue);
return result;
}
@@@ -773,6 -783,7 +773,6 @@@ static void init_once(void *foo
memset(bdev, 0, sizeof(*bdev));
mutex_init(&bdev->bd_mutex);
- INIT_LIST_HEAD(&bdev->bd_list);
#ifdef CONFIG_SYSFS
INIT_LIST_HEAD(&bdev->bd_holder_disks);
#endif
@@@ -788,6 -799,9 +788,6 @@@ static void bdev_evict_inode(struct ino
truncate_inode_pages_final(&inode->i_data);
invalidate_inode_buffers(inode); /* is it needed here? */
clear_inode(inode);
- spin_lock(&bdev_lock);
- list_del_init(&bdev->bd_list);
- spin_unlock(&bdev_lock);
/* Detach inode from wb early as bdi_put() may free bdi->wb */
inode_detach_wb(inode);
if (bdev->bd_bdi != &noop_backing_dev_info) {
@@@ -862,6 -876,8 +862,6 @@@ static int bdev_set(struct inode *inode
return 0;
}
-static LIST_HEAD(all_bdevs);
-
struct block_device *bdget(dev_t dev)
{
struct block_device *bdev;
@@@ -879,6 -895,7 +879,6 @@@
bdev->bd_contains = NULL;
bdev->bd_super = NULL;
bdev->bd_inode = inode;
- bdev->bd_block_size = i_blocksize(inode);
bdev->bd_part_count = 0;
bdev->bd_invalidated = 0;
inode->i_mode = S_IFBLK;
@@@ -886,6 -903,9 +886,6 @@@
inode->i_bdev = bdev;
inode->i_data.a_ops = &def_blk_aops;
mapping_set_gfp_mask(&inode->i_data, GFP_USER);
- spin_lock(&bdev_lock);
- list_add(&bdev->bd_list, &all_bdevs);
- spin_unlock(&bdev_lock);
unlock_new_inode(inode);
}
return bdev;
@@@ -906,14 -926,13 +906,14 @@@ EXPORT_SYMBOL(bdgrab)
long nr_blockdev_pages(void)
{
- struct block_device *bdev;
+ struct inode *inode;
long ret = 0;
- spin_lock(&bdev_lock);
- list_for_each_entry(bdev, &all_bdevs, bd_list) {
- ret += bdev->bd_inode->i_mapping->nrpages;
- }
- spin_unlock(&bdev_lock);
+
+ spin_lock(&blockdev_superblock->s_inode_list_lock);
+ list_for_each_entry(inode, &blockdev_superblock->s_inodes, i_sb_list)
+ ret += inode->i_mapping->nrpages;
+ spin_unlock(&blockdev_superblock->s_inode_list_lock);
+
return ret;
}
@@@ -1168,8 -1187,8 +1168,8 @@@ static void bd_clear_claiming(struct bl
* Finish exclusive open of a block device. Mark the device as exlusively
* open by the holder and wake up all waiters for exclusive open to finish.
*/
-void bd_finish_claiming(struct block_device *bdev, struct block_device *whole,
- void *holder)
+static void bd_finish_claiming(struct block_device *bdev,
+ struct block_device *whole, void *holder)
{
spin_lock(&bdev_lock);
BUG_ON(!bd_may_claim(bdev, whole, holder));
@@@ -1184,6 -1203,7 +1184,6 @@@
bd_clear_claiming(whole, holder);
spin_unlock(&bdev_lock);
}
-EXPORT_SYMBOL(bd_finish_claiming);
/**
* bd_abort_claiming - abort claiming of a block device
@@@ -1347,6 -1367,26 +1347,6 @@@ void bd_unlink_disk_holder(struct block
EXPORT_SYMBOL_GPL(bd_unlink_disk_holder);
#endif
-/**
- * flush_disk - invalidates all buffer-cache entries on a disk
- *
- * @bdev: struct block device to be flushed
- * @kill_dirty: flag to guide handling of dirty inodes
- *
- * Invalidates all buffer-cache entries on a disk. It should be called
- * when a disk has been changed -- either by a media change or online
- * resize.
- */
-static void flush_disk(struct block_device *bdev, bool kill_dirty)
-{
- if (__invalidate_device(bdev, kill_dirty)) {
- printk(KERN_WARNING "VFS: busy inodes on changed media or "
- "resized disk %s\n",
- bdev->bd_disk ? bdev->bd_disk->disk_name : "");
- }
- bdev->bd_invalidated = 1;
-}
-
/**
* check_disk_size_change - checks for disk size change and adjusts bdev size.
* @disk: struct gendisk to check
@@@ -1371,9 -1411,8 +1371,9 @@@ static void check_disk_size_change(stru
disk->disk_name, bdev_size, disk_size);
}
i_size_write(bdev->bd_inode, disk_size);
- if (bdev_size > disk_size)
- flush_disk(bdev, false);
+ if (bdev_size > disk_size && __invalidate_device(bdev, false))
+ pr_warn("VFS: busy inodes on resized disk %s\n",
+ disk->disk_name);
}
bdev->bd_invalidated = 0;
}
@@@ -1432,10 -1471,7 +1432,10 @@@ int check_disk_change(struct block_devi
if (!(events & DISK_EVENT_MEDIA_CHANGE))
return 0;
- flush_disk(bdev, true);
+ if (__invalidate_device(bdev, true))
+ pr_warn("VFS: busy inodes on changed media %s\n",
+ disk->disk_name);
+ bdev->bd_invalidated = 1;
if (bdops->revalidate_disk)
bdops->revalidate_disk(bdev->bd_disk);
return 1;
@@@ -1544,6 -1580,7 +1544,6 @@@ static int __blkdev_get(struct block_de
if (!bdev->bd_openers) {
first_open = true;
bdev->bd_disk = disk;
- bdev->bd_queue = disk->queue;
bdev->bd_contains = bdev;
bdev->bd_partno = partno;
@@@ -1564,6 -1601,7 +1564,6 @@@
disk_put_part(bdev->bd_part);
bdev->bd_part = NULL;
bdev->bd_disk = NULL;
- bdev->bd_queue = NULL;
mutex_unlock(&bdev->bd_mutex);
disk_unblock_events(disk);
put_disk_and_module(disk);
@@@ -1640,6 -1678,7 +1640,6 @@@
disk_put_part(bdev->bd_part);
bdev->bd_disk = NULL;
bdev->bd_part = NULL;
- bdev->bd_queue = NULL;
if (bdev != bdev->bd_contains)
__blkdev_put(bdev->bd_contains, mode, 1);
bdev->bd_contains = NULL;
@@@ -1812,7 -1851,7 +1812,7 @@@ static int blkdev_open(struct inode * i
*/
filp->f_flags |= O_LARGEFILE;
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
if (filp->f_flags & O_NDELAY)
filp->f_mode |= FMODE_NDELAY;
@@@ -2121,7 -2160,6 +2121,6 @@@ const struct file_operations def_blk_fo
#ifdef CONFIG_COMPAT
.compat_ioctl = compat_blkdev_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = blkdev_fallocate,
};
diff --combined fs/btrfs/file.c
index e050bd96e6c6,f3c81478b04e..b4ec68cc8ea1
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@@ -500,18 -500,18 +500,18 @@@ next
* this also makes the decision about creating an inline extent vs
* doing real data extents, marking pages dirty and delalloc as required.
*/
-int btrfs_dirty_pages(struct inode *inode, struct page **pages,
+int btrfs_dirty_pages(struct btrfs_inode *inode, struct page **pages,
size_t num_pages, loff_t pos, size_t write_bytes,
struct extent_state **cached)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
+ struct btrfs_fs_info *fs_info = inode->root->fs_info;
int err = 0;
int i;
u64 num_bytes;
u64 start_pos;
u64 end_of_last_block;
u64 end_pos = pos + write_bytes;
- loff_t isize = i_size_read(inode);
+ loff_t isize = i_size_read(&inode->vfs_inode);
unsigned int extra_bits = 0;
start_pos = pos & ~((u64) fs_info->sectorsize - 1);
@@@ -524,13 -524,13 +524,13 @@@
* The pages may have already been dirty, clear out old accounting so
* we can set things up properly
*/
- clear_extent_bit(&BTRFS_I(inode)->io_tree, start_pos, end_of_last_block,
+ clear_extent_bit(&inode->io_tree, start_pos, end_of_last_block,
EXTENT_DELALLOC | EXTENT_DO_ACCOUNTING | EXTENT_DEFRAG,
0, 0, cached);
- if (!btrfs_is_free_space_inode(BTRFS_I(inode))) {
+ if (!btrfs_is_free_space_inode(inode)) {
if (start_pos >= isize &&
- !(BTRFS_I(inode)->flags & BTRFS_INODE_PREALLOC)) {
+ !(inode->flags & BTRFS_INODE_PREALLOC)) {
/*
* There can't be any extents following eof in this case
* so just set the delalloc new bit for the range
@@@ -538,7 -538,8 +538,7 @@@
*/
extra_bits |= EXTENT_DELALLOC_NEW;
} else {
- err = btrfs_find_new_delalloc_bytes(BTRFS_I(inode),
- start_pos,
+ err = btrfs_find_new_delalloc_bytes(inode, start_pos,
num_bytes, cached);
if (err)
return err;
@@@ -563,7 -564,7 +563,7 @@@
* at this time.
*/
if (end_pos > isize)
- i_size_write(inode, end_pos);
+ i_size_write(&inode->vfs_inode, end_pos);
return 0;
}
@@@ -730,7 -731,7 +730,7 @@@ next
* is deleted from the tree.
*/
int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, struct inode *inode,
+ struct btrfs_root *root, struct btrfs_inode *inode,
struct btrfs_path *path, u64 start, u64 end,
u64 *drop_end, int drop_cache,
int replace_extent,
@@@ -743,8 -744,7 +743,8 @@@
struct btrfs_ref ref = { 0 };
struct btrfs_key key;
struct btrfs_key new_key;
- u64 ino = btrfs_ino(BTRFS_I(inode));
+ struct inode *vfs_inode = &inode->vfs_inode;
+ u64 ino = btrfs_ino(inode);
u64 search_start = start;
u64 disk_bytenr = 0;
u64 num_bytes = 0;
@@@ -762,9 -762,9 +762,9 @@@
int leafs_visited = 0;
if (drop_cache)
- btrfs_drop_extent_cache(BTRFS_I(inode), start, end - 1, 0);
+ btrfs_drop_extent_cache(inode, start, end - 1, 0);
- if (start >= BTRFS_I(inode)->disk_i_size && !replace_extent)
+ if (start >= inode->disk_i_size && !replace_extent)
modify_tree = 0;
update_refs = (test_bit(BTRFS_ROOT_SHAREABLE, &root->state) ||
@@@ -935,7 -935,7 +935,7 @@@ next_slot
extent_end - end);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, end - key.offset);
+ inode_sub_bytes(vfs_inode, end - key.offset);
break;
}
@@@ -955,7 -955,7 +955,7 @@@
start - key.offset);
btrfs_mark_buffer_dirty(leaf);
if (update_refs && disk_bytenr > 0)
- inode_sub_bytes(inode, extent_end - start);
+ inode_sub_bytes(vfs_inode, extent_end - start);
if (end == extent_end)
break;
@@@ -979,7 -979,7 +979,7 @@@ delete_extent_item
if (update_refs &&
extent_type == BTRFS_FILE_EXTENT_INLINE) {
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
extent_end = ALIGN(extent_end,
fs_info->sectorsize);
@@@ -993,7 -993,7 +993,7 @@@
key.offset - extent_offset);
ret = btrfs_free_extent(trans, &ref);
BUG_ON(ret); /* -ENOMEM */
- inode_sub_bytes(inode,
+ inode_sub_bytes(vfs_inode,
extent_end - key.offset);
}
@@@ -1082,8 -1082,8 +1082,8 @@@ int btrfs_drop_extents(struct btrfs_tra
path = btrfs_alloc_path();
if (!path)
return -ENOMEM;
- ret = __btrfs_drop_extents(trans, root, inode, path, start, end, NULL,
- drop_cache, 0, 0, NULL);
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path, start,
+ end, NULL, drop_cache, 0, 0, NULL);
btrfs_free_path(path);
return ret;
}
@@@ -1532,8 -1532,8 +1532,8 @@@ lock_and_cleanup_extent_if_need(struct
return ret;
}
-static noinline int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
- size_t *write_bytes, bool nowait)
+static int check_can_nocow(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes, bool nowait)
{
struct btrfs_fs_info *fs_info = inode->root->fs_info;
struct btrfs_root *root = inode->root;
@@@ -1541,9 -1541,6 +1541,9 @@@
u64 num_bytes;
int ret;
+ if (!(inode->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC)))
+ return 0;
+
if (!nowait && !btrfs_drew_try_write_lock(&root->snapshot_lock))
return -EAGAIN;
@@@ -1586,42 -1583,6 +1586,42 @@@ out_unlock
return ret;
}
+static int check_nocow_nolock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, true);
+}
+
+/*
+ * Check if we can do nocow write into the range [@pos, @pos + @write_bytes)
+ *
+ * @pos: File offset
+ * @write_bytes: The length to write, will be updated to the nocow writeable
+ * range
+ *
+ * This function will flush ordered extents in the range to ensure proper
+ * nocow checks.
+ *
+ * Return:
+ * >0 and update @write_bytes if we can do nocow write
+ * 0 if we can't do nocow write
+ * -EAGAIN if we can't get the needed lock or there are ordered extents
+ * for * (nowait == true) case
+ * <0 if other error happened
+ *
+ * NOTE: Callers need to release the lock by btrfs_check_nocow_unlock().
+ */
+int btrfs_check_nocow_lock(struct btrfs_inode *inode, loff_t pos,
+ size_t *write_bytes)
+{
+ return check_can_nocow(inode, pos, write_bytes, false);
+}
+
+void btrfs_check_nocow_unlock(struct btrfs_inode *inode)
+{
+ btrfs_drew_write_unlock(&inode->root->snapshot_lock);
+}
+
static noinline ssize_t btrfs_buffered_write(struct kiocb *iocb,
struct iov_iter *i)
{
@@@ -1629,6 -1590,7 +1629,6 @@@
loff_t pos = iocb->ki_pos;
struct inode *inode = file_inode(file);
struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
- struct btrfs_root *root = BTRFS_I(inode)->root;
struct page **pages = NULL;
struct extent_changeset *data_reserved = NULL;
u64 release_bytes = 0;
@@@ -1681,12 -1643,13 +1681,12 @@@
fs_info->sectorsize);
extent_changeset_release(data_reserved);
- ret = btrfs_check_data_free_space(inode, &data_reserved, pos,
+ ret = btrfs_check_data_free_space(BTRFS_I(inode),
+ &data_reserved, pos,
write_bytes);
if (ret < 0) {
- if ((BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) &&
- check_can_nocow(BTRFS_I(inode), pos,
- &write_bytes, false) > 0) {
+ if (btrfs_check_nocow_lock(BTRFS_I(inode), pos,
+ &write_bytes) > 0) {
/*
* For nodata cow case, no need to reserve
* data space.
@@@ -1711,11 -1674,11 +1711,11 @@@
reserve_bytes);
if (ret) {
if (!only_release_metadata)
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, pos,
write_bytes);
else
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
break;
}
@@@ -1785,7 -1748,7 +1785,7 @@@ again
__pos = round_down(pos,
fs_info->sectorsize) +
(dirty_pages << PAGE_SHIFT);
- btrfs_delalloc_release_space(inode,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
data_reserved, __pos,
release_bytes, true);
}
@@@ -1795,9 -1758,8 +1795,9 @@@
fs_info->sectorsize);
if (copied > 0)
- ret = btrfs_dirty_pages(inode, pages, dirty_pages,
- pos, copied, &cached_state);
+ ret = btrfs_dirty_pages(BTRFS_I(inode), pages,
+ dirty_pages, pos, copied,
+ &cached_state);
/*
* If we have not locked the extent range, because the range's
@@@ -1820,7 -1782,7 +1820,7 @@@
release_bytes = 0;
if (only_release_metadata)
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
if (only_release_metadata && copied > 0) {
lockstart = round_down(pos,
@@@ -1838,6 -1800,8 +1838,6 @@@
cond_resched();
balance_dirty_pages_ratelimited(inode->i_mapping);
- if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1)
- btrfs_btree_balance_dirty(fs_info);
pos += copied;
num_written += copied;
@@@ -1847,12 -1811,11 +1847,12 @@@
if (release_bytes) {
if (only_release_metadata) {
- btrfs_drew_write_unlock(&root->snapshot_lock);
+ btrfs_check_nocow_unlock(BTRFS_I(inode));
btrfs_delalloc_release_metadata(BTRFS_I(inode),
release_bytes, true);
} else {
- btrfs_delalloc_release_space(inode, data_reserved,
+ btrfs_delalloc_release_space(BTRFS_I(inode),
+ data_reserved,
round_down(pos, fs_info->sectorsize),
release_bytes, true);
}
@@@ -1872,7 -1835,7 +1872,7 @@@ static ssize_t __btrfs_direct_write(str
loff_t endbyte;
int err;
- written = generic_file_direct_write(iocb, from);
+ written = btrfs_direct_IO(iocb, from);
if (written < 0 || !iov_iter_count(from))
return written;
@@@ -1963,8 -1926,10 +1963,8 @@@ static ssize_t btrfs_file_write_iter(st
* We will allocate space in case nodatacow is not set,
* so bail
*/
- if (!(BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW |
- BTRFS_INODE_PREALLOC)) ||
- check_can_nocow(BTRFS_I(inode), pos, &nocow_bytes,
- true) <= 0) {
+ if (check_nocow_nolock(BTRFS_I(inode), pos, &nocow_bytes)
+ <= 0) {
inode_unlock(inode);
return -EAGAIN;
}
@@@ -2633,7 -2598,7 +2633,7 @@@ int btrfs_punch_hole_range(struct inod
cur_offset = start;
while (cur_offset < end) {
- ret = __btrfs_drop_extents(trans, root, inode, path,
+ ret = __btrfs_drop_extents(trans, root, BTRFS_I(inode), path,
cur_offset, end + 1, &drop_end,
1, 0, 0, NULL);
if (ret != -ENOSPC) {
@@@ -3211,14 -3176,14 +3211,14 @@@ reserve_space
if (ret < 0)
goto out;
space_reserved = true;
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- alloc_start, bytes_to_reserve);
- if (ret)
- goto out;
ret = btrfs_punch_hole_lock_range(inode, lockstart, lockend,
&cached_state);
if (ret)
goto out;
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode), &data_reserved,
+ alloc_start, bytes_to_reserve);
+ if (ret)
+ goto out;
ret = btrfs_prealloc_file_range(inode, mode, alloc_start,
alloc_end - alloc_start,
i_blocksize(inode),
@@@ -3234,7 -3199,7 +3234,7 @@@
ret = btrfs_fallocate_update_isize(inode, offset + len, mode);
out:
if (ret && space_reserved)
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
alloc_start, bytes_to_reserve);
extent_changeset_free(data_reserved);
@@@ -3385,9 -3350,8 +3385,9 @@@ static long btrfs_fallocate(struct fil
free_extent_map(em);
break;
}
- ret = btrfs_qgroup_reserve_data(inode, &data_reserved,
- cur_offset, last_byte - cur_offset);
+ ret = btrfs_qgroup_reserve_data(BTRFS_I(inode),
+ &data_reserved, cur_offset,
+ last_byte - cur_offset);
if (ret < 0) {
cur_offset = last_byte;
free_extent_map(em);
@@@ -3399,9 -3363,8 +3399,9 @@@
* range, free reserved data space first, otherwise
* it'll result in false ENOSPC error.
*/
- btrfs_free_reserved_data_space(inode, data_reserved,
- cur_offset, last_byte - cur_offset);
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
+ data_reserved, cur_offset,
+ last_byte - cur_offset);
}
free_extent_map(em);
cur_offset = last_byte;
@@@ -3418,7 -3381,7 +3418,7 @@@
range->len, i_blocksize(inode),
offset + len, &alloc_hint);
else
- btrfs_free_reserved_data_space(inode,
+ btrfs_free_reserved_data_space(BTRFS_I(inode),
data_reserved, range->start,
range->len);
list_del(&range->list);
@@@ -3439,7 -3402,7 +3439,7 @@@ out
inode_unlock(inode);
/* Let go of our reservation. */
if (ret != 0 && !(mode & FALLOC_FL_ZERO_RANGE))
- btrfs_free_reserved_data_space(inode, data_reserved,
+ btrfs_free_reserved_data_space(BTRFS_I(inode), data_reserved,
cur_offset, alloc_end - cur_offset);
extent_changeset_free(data_reserved);
return ret;
@@@ -3537,31 -3500,13 +3537,30 @@@ static loff_t btrfs_file_llseek(struct
static int btrfs_file_open(struct inode *inode, struct file *filp)
{
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return generic_file_open(inode, filp);
}
+static ssize_t btrfs_file_read_iter(struct kiocb *iocb, struct iov_iter *to)
+{
+ ssize_t ret = 0;
+
+ if (iocb->ki_flags & IOCB_DIRECT) {
+ struct inode *inode = file_inode(iocb->ki_filp);
+
+ inode_lock_shared(inode);
+ ret = btrfs_direct_IO(iocb, to);
+ inode_unlock_shared(inode);
+ if (ret < 0)
+ return ret;
+ }
+
+ return generic_file_buffered_read(iocb, to, ret);
+}
+
const struct file_operations btrfs_file_operations = {
.llseek = btrfs_file_llseek,
- .read_iter = generic_file_read_iter,
+ .read_iter = btrfs_file_read_iter,
- .splice_read = generic_file_splice_read,
.write_iter = btrfs_file_write_iter,
.splice_write = iter_file_splice_write,
.mmap = btrfs_file_mmap,
diff --combined fs/debugfs/file.c
index b167d2d02148,dcd7bdaf6741..e2e07eec50f1
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@@ -231,6 -231,10 +231,10 @@@ FULL_PROXY_FUNC(read, ssize_t, filp
loff_t *ppos),
ARGS(filp, buf, size, ppos));
+ FULL_PROXY_FUNC(read_iter, ssize_t, iocb->ki_filp,
+ PROTO(struct kiocb *iocb, struct iov_iter *iter),
+ ARGS(iocb, iter));
+
FULL_PROXY_FUNC(write, ssize_t, filp,
PROTO(struct file *filp, const char __user *buf, size_t size,
loff_t *ppos),
@@@ -273,7 -277,7 +277,7 @@@ static int full_proxy_release(struct in
r = real_fops->release(inode, filp);
replace_fops(filp, d_inode(dentry)->i_fop);
- kfree((void *)proxy_fops);
+ kfree(proxy_fops);
fops_put(real_fops);
return r;
}
@@@ -286,6 -290,8 +290,8 @@@ static void __full_proxy_fops_init(stru
proxy_fops->llseek = full_proxy_llseek;
if (real_fops->read)
proxy_fops->read = full_proxy_read;
+ if (real_fops->read_iter)
+ proxy_fops->read_iter = full_proxy_read_iter;
if (real_fops->write)
proxy_fops->write = full_proxy_write;
if (real_fops->poll)
@@@ -918,6 -924,11 +924,6 @@@ struct dentry *debugfs_create_blob(cons
}
EXPORT_SYMBOL_GPL(debugfs_create_blob);
-struct array_data {
- void *array;
- u32 elements;
-};
-
static size_t u32_format_array(char *buf, size_t bufsize,
u32 *array, int array_size)
{
@@@ -938,8 -949,8 +944,8 @@@
static int u32_array_open(struct inode *inode, struct file *file)
{
- struct array_data *data = inode->i_private;
- int size, elements = data->elements;
+ struct debugfs_u32_array *data = inode->i_private;
+ int size, elements = data->n_elements;
char *buf;
/*
@@@ -954,7 -965,7 +960,7 @@@
buf[size] = 0;
file->private_data = buf;
- u32_format_array(buf, size, data->array, data->elements);
+ u32_format_array(buf, size, data->array, data->n_elements);
return nonseekable_open(inode, file);
}
@@@ -991,7 -1002,8 +997,7 @@@ static const struct file_operations u32
* @parent: a pointer to the parent dentry for this file. This should be a
* directory dentry if set. If this parameter is %NULL, then the
* file will be created in the root of the debugfs filesystem.
- * @array: u32 array that provides data.
- * @elements: total number of elements in the array.
+ * @array: wrapper struct containing data pointer and size of the array.
*
* This function creates a file in debugfs with the given name that exports
* @array as data. If the @mode variable is so set it can be read from.
@@@ -999,10 -1011,17 +1005,10 @@@
* Once array is created its size can not be changed.
*/
void debugfs_create_u32_array(const char *name, umode_t mode,
- struct dentry *parent, u32 *array, u32 elements)
+ struct dentry *parent,
+ struct debugfs_u32_array *array)
{
- struct array_data *data = kmalloc(sizeof(*data), GFP_KERNEL);
-
- if (data == NULL)
- return;
-
- data->array = array;
- data->elements = elements;
-
- debugfs_create_file_unsafe(name, mode, parent, data, &u32_array_fops);
+ debugfs_create_file_unsafe(name, mode, parent, array, &u32_array_fops);
}
EXPORT_SYMBOL_GPL(debugfs_create_u32_array);
@@@ -1067,7 -1086,7 +1073,7 @@@ static int debugfs_open_regset32(struc
static const struct file_operations fops_regset32 = {
.open = debugfs_open_regset32,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -1113,7 -1132,7 +1119,7 @@@ static const struct file_operations deb
.owner = THIS_MODULE,
.open = debugfs_devm_entry_open,
.release = single_release,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek
};
diff --combined fs/exfat/file.c
index 6bdabfd4b134,8fe5df8a9ccb..f71b599f9bfe
--- a/fs/exfat/file.c
+++ b/fs/exfat/file.c
@@@ -154,7 -154,6 +154,7 @@@ int __exfat_truncate(struct inode *inod
struct timespec64 ts;
struct exfat_dentry *ep, *ep2;
struct exfat_entry_set_cache *es;
+ int err;
es = exfat_get_dentry_set(sb, &(ei->dir), ei->entry,
ES_ALL_ENTRIES);
@@@ -177,7 -176,7 +177,7 @@@
ep2->dentry.stream.size = 0;
} else {
ep2->dentry.stream.valid_size = cpu_to_le64(new_size);
- ep2->dentry.stream.size = ep->dentry.stream.valid_size;
+ ep2->dentry.stream.size = ep2->dentry.stream.valid_size;
}
if (new_size == 0) {
@@@ -189,9 -188,7 +189,9 @@@
}
exfat_update_dir_chksum_with_entry_set(es);
- exfat_free_dentry_set(es, inode_needs_sync(inode));
+ err = exfat_free_dentry_set(es, inode_needs_sync(inode));
+ if (err)
+ return err;
}
/* cut off from the FAT chain */
@@@ -372,7 -369,6 +372,6 @@@ const struct file_operations exfat_file
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = exfat_file_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/ext4/file.c
index 8f6324eb6b27,f5dc9a4e0937..cdfc8c6919c5
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@@ -53,7 -53,6 +53,7 @@@ static ssize_t ext4_dio_read_iter(struc
{
ssize_t ret;
struct inode *inode = file_inode(iocb->ki_filp);
+ unsigned int flags = 0;
if (iocb->ki_flags & IOCB_NOWAIT) {
if (!inode_trylock_shared(inode))
@@@ -75,11 -74,8 +75,11 @@@
return generic_file_read_iter(iocb, to);
}
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, to, &ext4_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ flags);
inode_unlock_shared(inode);
file_accessed(iocb->ki_filp);
@@@ -461,7 -457,6 +461,7 @@@ static ssize_t ext4_dio_write_iter(stru
const struct iomap_ops *iomap_ops = &ext4_iomap_ops;
bool extend = false, unaligned_io = false;
bool ilock_shared = true;
+ unsigned int flags = 0;
/*
* We initially start with shared inode lock unless it is
@@@ -545,12 -540,10 +545,12 @@@
ext4_journal_stop(handle);
}
+ if (is_sync_kiocb(iocb) || unaligned_io || extend)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
if (ilock_shared)
iomap_ops = &ext4_iomap_overwrite_ops;
ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io || extend);
+ flags);
if (extend)
ret = ext4_handle_inode_extension(inode, offset, ret, count);
@@@ -903,7 -896,6 +903,6 @@@ const struct file_operations ext4_file_
.release = ext4_release_file,
.fsync = ext4_sync_file,
.get_unmapped_area = thp_get_unmapped_area,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = ext4_fallocate,
};
diff --combined fs/f2fs/file.c
index 2485841e3b2d,6b34caf13b56..a5e889189d36
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@@ -21,7 -21,6 +21,7 @@@
#include <linux/uuid.h>
#include <linux/file.h>
#include <linux/nls.h>
+#include <linux/sched/signal.h>
#include "f2fs.h"
#include "node.h"
@@@ -106,11 -105,11 +106,11 @@@ static vm_fault_t f2fs_vm_page_mkwrite(
if (need_alloc) {
/* block allocation */
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = f2fs_get_block(&dn, page->index);
f2fs_put_dnode(&dn);
- __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
+ f2fs_do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
@@@ -1374,6 -1373,8 +1374,6 @@@ static int f2fs_collapse_range(struct i
truncate_pagecache(inode, offset);
new_size = i_size_read(inode) - len;
- truncate_pagecache(inode, new_size);
-
ret = f2fs_truncate_blocks(inode, new_size, true);
up_write(&F2FS_I(inode)->i_mmap_sem);
if (!ret)
@@@ -1659,7 -1660,7 +1659,7 @@@ next_alloc
map.m_seg_type = CURSEG_COLD_DATA_PINNED;
f2fs_lock_op(sbi);
- f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
+ f2fs_allocate_new_segment(sbi, CURSEG_COLD_DATA);
f2fs_unlock_op(sbi);
err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
@@@ -2526,11 -2527,6 +2526,11 @@@ do_more
}
ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
+ if (ret) {
+ if (ret == -EBUSY)
+ ret = -EAGAIN;
+ goto out;
+ }
range.start += BLKS_PER_SEC(sbi);
if (range.start <= end)
goto do_more;
@@@ -3760,184 -3756,6 +3760,184 @@@ out
return ret;
}
+static int f2fs_secure_erase(struct block_device *bdev, block_t block,
+ block_t len, u32 flags)
+{
+ struct request_queue *q = bdev_get_queue(bdev);
+ sector_t sector = SECTOR_FROM_BLOCK(block);
+ sector_t nr_sects = SECTOR_FROM_BLOCK(len);
+ int ret = 0;
+
+ if (!q)
+ return -ENXIO;
+
+ if (flags & F2FS_TRIM_FILE_DISCARD)
+ ret = blkdev_issue_discard(bdev, sector, nr_sects, GFP_NOFS,
+ blk_queue_secure_erase(q) ?
+ BLKDEV_DISCARD_SECURE : 0);
+
+ if (!ret && (flags & F2FS_TRIM_FILE_ZEROOUT))
+ ret = blkdev_issue_zeroout(bdev, sector, nr_sects, GFP_NOFS, 0);
+
+ return ret;
+}
+
+static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct address_space *mapping = inode->i_mapping;
+ struct block_device *prev_bdev = NULL;
+ struct f2fs_sectrim_range range;
+ pgoff_t index, pg_end;
+ block_t prev_block = 0, len = 0;
+ loff_t end_addr;
+ bool to_end = false;
+ int ret = 0;
+
+ if (!(filp->f_mode & FMODE_WRITE))
+ return -EBADF;
+
+ if (copy_from_user(&range, (struct f2fs_sectrim_range __user *)arg,
+ sizeof(range)))
+ return -EFAULT;
+
+ if (range.flags == 0 || (range.flags & ~F2FS_TRIM_FILE_MASK) ||
+ !S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ if ((range.flags & F2FS_TRIM_FILE_DISCARD) &&
+ !f2fs_hw_support_discard(sbi))
+ return -EOPNOTSUPP;
+
+ file_start_write(filp);
+ inode_lock(inode);
+
+ if (f2fs_is_atomic_file(inode) || f2fs_compressed_file(inode) ||
+ range.start >= inode->i_size) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ if (range.len == 0)
+ goto err;
+
+ if (inode->i_size - range.start > range.len) {
+ end_addr = range.start + range.len;
+ } else {
+ end_addr = range.len == (u64)-1 ?
+ sbi->sb->s_maxbytes : inode->i_size;
+ to_end = true;
+ }
+
+ if (!IS_ALIGNED(range.start, F2FS_BLKSIZE) ||
+ (!to_end && !IS_ALIGNED(end_addr, F2FS_BLKSIZE))) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ index = F2FS_BYTES_TO_BLK(range.start);
+ pg_end = DIV_ROUND_UP(end_addr, F2FS_BLKSIZE);
+
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ goto err;
+
+ down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+ down_write(&F2FS_I(inode)->i_mmap_sem);
+
+ ret = filemap_write_and_wait_range(mapping, range.start,
+ to_end ? LLONG_MAX : end_addr - 1);
+ if (ret)
+ goto out;
+
+ truncate_inode_pages_range(mapping, range.start,
+ to_end ? -1 : end_addr - 1);
+
+ while (index < pg_end) {
+ struct dnode_of_data dn;
+ pgoff_t end_offset, count;
+ int i;
+
+ set_new_dnode(&dn, inode, NULL, NULL, 0);
+ ret = f2fs_get_dnode_of_data(&dn, index, LOOKUP_NODE);
+ if (ret) {
+ if (ret == -ENOENT) {
+ index = f2fs_get_next_page_offset(&dn, index);
+ continue;
+ }
+ goto out;
+ }
+
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
+ count = min(end_offset - dn.ofs_in_node, pg_end - index);
+ for (i = 0; i < count; i++, dn.ofs_in_node++) {
+ struct block_device *cur_bdev;
+ block_t blkaddr = f2fs_data_blkaddr(&dn);
+
+ if (!__is_valid_data_blkaddr(blkaddr))
+ continue;
+
+ if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
+ DATA_GENERIC_ENHANCE)) {
+ ret = -EFSCORRUPTED;
+ f2fs_put_dnode(&dn);
+ goto out;
+ }
+
+ cur_bdev = f2fs_target_device(sbi, blkaddr, NULL);
+ if (f2fs_is_multi_device(sbi)) {
+ int di = f2fs_target_device_index(sbi, blkaddr);
+
+ blkaddr -= FDEV(di).start_blk;
+ }
+
+ if (len) {
+ if (prev_bdev == cur_bdev &&
+ blkaddr == prev_block + len) {
+ len++;
+ } else {
+ ret = f2fs_secure_erase(prev_bdev,
+ prev_block, len, range.flags);
+ if (ret) {
+ f2fs_put_dnode(&dn);
+ goto out;
+ }
+
+ len = 0;
+ }
+ }
+
+ if (!len) {
+ prev_bdev = cur_bdev;
+ prev_block = blkaddr;
+ len = 1;
+ }
+ }
+
+ f2fs_put_dnode(&dn);
+ index += count;
+
+ if (fatal_signal_pending(current)) {
+ ret = -EINTR;
+ goto out;
+ }
+ cond_resched();
+ }
+
+ if (len)
+ ret = f2fs_secure_erase(prev_bdev, prev_block, len,
+ range.flags);
+out:
+ up_write(&F2FS_I(inode)->i_mmap_sem);
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+err:
+ inode_unlock(inode);
+ file_end_write(filp);
+
+ return ret;
+}
+
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
@@@ -4024,8 -3842,6 +4024,8 @@@
return f2fs_release_compress_blocks(filp, arg);
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
return f2fs_reserve_compress_blocks(filp, arg);
+ case F2FS_IOC_SEC_TRIM_FILE:
+ return f2fs_sec_trim_file(filp, arg);
default:
return -ENOTTY;
}
@@@ -4195,7 -4011,6 +4195,7 @@@ long f2fs_compat_ioctl(struct file *fil
case F2FS_IOC_GET_COMPRESS_BLOCKS:
case F2FS_IOC_RELEASE_COMPRESS_BLOCKS:
case F2FS_IOC_RESERVE_COMPRESS_BLOCKS:
+ case F2FS_IOC_SEC_TRIM_FILE:
break;
default:
return -ENOIOCTLCMD;
@@@ -4218,6 -4033,5 +4218,5 @@@ const struct file_operations f2fs_file_
#ifdef CONFIG_COMPAT
.compat_ioctl = f2fs_compat_ioctl,
#endif
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
};
diff --combined fs/fuse/file.c
index ac502a259963,a404e147bb2c..76b7f68e1497
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@@ -1586,6 -1586,7 +1586,6 @@@ static void fuse_writepage_finish(struc
struct backing_dev_info *bdi = inode_to_bdi(inode);
int i;
- rb_erase(&wpa->writepages_entry, &fi->writepages);
for (i = 0; i < ap->num_pages; i++) {
dec_wb_stat(&bdi->wb, WB_WRITEBACK);
dec_node_page_state(ap->pages[i], NR_WRITEBACK_TEMP);
@@@ -1636,7 -1637,6 +1636,7 @@@ __acquires(fi->lock
out_free:
fi->writectr--;
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
fuse_writepage_finish(fc, wpa);
spin_unlock(&fi->lock);
@@@ -1674,8 -1674,7 +1674,8 @@@ __acquires(fi->lock
}
}
-static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+static struct fuse_writepage_args *fuse_insert_writeback(struct rb_root *root,
+ struct fuse_writepage_args *wpa)
{
pgoff_t idx_from = wpa->ia.write.in.offset >> PAGE_SHIFT;
pgoff_t idx_to = idx_from + wpa->ia.ap.num_pages - 1;
@@@ -1698,17 -1697,11 +1698,17 @@@
else if (idx_to < curr_index)
p = &(*p)->rb_left;
else
- return (void) WARN_ON(true);
+ return curr;
}
rb_link_node(&wpa->writepages_entry, parent, p);
rb_insert_color(&wpa->writepages_entry, root);
+ return NULL;
+}
+
+static void tree_insert(struct rb_root *root, struct fuse_writepage_args *wpa)
+{
+ WARN_ON(fuse_insert_writeback(root, wpa));
}
static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_args *args,
@@@ -1721,7 -1714,6 +1721,7 @@@
mapping_set_error(inode->i_mapping, error);
spin_lock(&fi->lock);
+ rb_erase(&wpa->writepages_entry, &fi->writepages);
while (wpa->next) {
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_write_in *inarg = &wpa->ia.write.in;
@@@ -1960,14 -1952,14 +1960,14 @@@ static void fuse_writepages_send(struc
}
/*
- * First recheck under fi->lock if the offending offset is still under
- * writeback. If yes, then iterate auxiliary write requests, to see if there's
+ * Check under fi->lock if the page is under writeback, and insert it onto the
+ * rb_tree if not. Otherwise iterate auxiliary write requests, to see if there's
* one already added for a page at this offset. If there's none, then insert
* this new request onto the auxiliary list, otherwise reuse the existing one by
- * copying the new page contents over to the old temporary page.
+ * swapping the new temp page with the old one.
*/
-static bool fuse_writepage_in_flight(struct fuse_writepage_args *new_wpa,
- struct page *page)
+static bool fuse_writepage_add(struct fuse_writepage_args *new_wpa,
+ struct page *page)
{
struct fuse_inode *fi = get_fuse_inode(new_wpa->inode);
struct fuse_writepage_args *tmp;
@@@ -1975,15 -1967,17 +1975,15 @@@
struct fuse_args_pages *new_ap = &new_wpa->ia.ap;
WARN_ON(new_ap->num_pages != 0);
+ new_ap->num_pages = 1;
spin_lock(&fi->lock);
- rb_erase(&new_wpa->writepages_entry, &fi->writepages);
- old_wpa = fuse_find_writeback(fi, page->index, page->index);
+ old_wpa = fuse_insert_writeback(&fi->writepages, new_wpa);
if (!old_wpa) {
- tree_insert(&fi->writepages, new_wpa);
spin_unlock(&fi->lock);
- return false;
+ return true;
}
- new_ap->num_pages = 1;
for (tmp = old_wpa->next; tmp; tmp = tmp->next) {
pgoff_t curr_index;
@@@ -2012,41 -2006,7 +2012,41 @@@
fuse_writepage_free(new_wpa);
}
- return true;
+ return false;
+}
+
+static bool fuse_writepage_need_send(struct fuse_conn *fc, struct page *page,
+ struct fuse_args_pages *ap,
+ struct fuse_fill_wb_data *data)
+{
+ WARN_ON(!ap->num_pages);
+
+ /*
+ * Being under writeback is unlikely but possible. For example direct
+ * read to an mmaped fuse file will set the page dirty twice; once when
+ * the pages are faulted with get_user_pages(), and then after the read
+ * completed.
+ */
+ if (fuse_page_is_writeback(data->inode, page->index))
+ return true;
+
+ /* Reached max pages */
+ if (ap->num_pages == fc->max_pages)
+ return true;
+
+ /* Reached max write bytes */
+ if ((ap->num_pages + 1) * PAGE_SIZE > fc->max_write)
+ return true;
+
+ /* Discontinuity */
+ if (data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)
+ return true;
+
+ /* Need to grow the pages array? If so, did the expansion fail? */
+ if (ap->num_pages == data->max_pages && !fuse_pages_realloc(data))
+ return true;
+
+ return false;
}
static int fuse_writepages_fill(struct page *page,
@@@ -2059,6 -2019,7 +2059,6 @@@
struct fuse_inode *fi = get_fuse_inode(inode);
struct fuse_conn *fc = get_fuse_conn(inode);
struct page *tmp_page;
- bool is_writeback;
int err;
if (!data->ff) {
@@@ -2068,9 -2029,25 +2068,9 @@@
goto out_unlock;
}
- /*
- * Being under writeback is unlikely but possible. For example direct
- * read to an mmaped fuse file will set the page dirty twice; once when
- * the pages are faulted with get_user_pages(), and then after the read
- * completed.
- */
- is_writeback = fuse_page_is_writeback(inode, page->index);
-
- if (wpa && ap->num_pages &&
- (is_writeback || ap->num_pages == fc->max_pages ||
- (ap->num_pages + 1) * PAGE_SIZE > fc->max_write ||
- data->orig_pages[ap->num_pages - 1]->index + 1 != page->index)) {
+ if (wpa && fuse_writepage_need_send(fc, page, ap, data)) {
fuse_writepages_send(data);
data->wpa = NULL;
- } else if (wpa && ap->num_pages == data->max_pages) {
- if (!fuse_pages_realloc(data)) {
- fuse_writepages_send(data);
- data->wpa = NULL;
- }
}
err = -ENOMEM;
@@@ -2108,6 -2085,12 +2108,6 @@@
ap->args.end = fuse_writepage_end;
ap->num_pages = 0;
wpa->inode = inode;
-
- spin_lock(&fi->lock);
- tree_insert(&fi->writepages, wpa);
- spin_unlock(&fi->lock);
-
- data->wpa = wpa;
}
set_page_writeback(page);
@@@ -2115,25 -2098,26 +2115,25 @@@
ap->pages[ap->num_pages] = tmp_page;
ap->descs[ap->num_pages].offset = 0;
ap->descs[ap->num_pages].length = PAGE_SIZE;
+ data->orig_pages[ap->num_pages] = page;
inc_wb_stat(&inode_to_bdi(inode)->wb, WB_WRITEBACK);
inc_node_page_state(tmp_page, NR_WRITEBACK_TEMP);
err = 0;
- if (is_writeback && fuse_writepage_in_flight(wpa, page)) {
+ if (data->wpa) {
+ /*
+ * Protected by fi->lock against concurrent access by
+ * fuse_page_is_writeback().
+ */
+ spin_lock(&fi->lock);
+ ap->num_pages++;
+ spin_unlock(&fi->lock);
+ } else if (fuse_writepage_add(wpa, page)) {
+ data->wpa = wpa;
+ } else {
end_page_writeback(page);
- data->wpa = NULL;
- goto out_unlock;
}
- data->orig_pages[ap->num_pages] = page;
-
- /*
- * Protected by fi->lock against concurrent access by
- * fuse_page_is_writeback().
- */
- spin_lock(&fi->lock);
- ap->num_pages++;
- spin_unlock(&fi->lock);
-
out_unlock:
unlock_page(page);
@@@ -2165,8 -2149,10 +2165,8 @@@ static int fuse_writepages(struct addre
err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data);
if (data.wpa) {
- /* Ignore errors if we can write at least one page */
WARN_ON(!data.wpa->ia.ap.num_pages);
fuse_writepages_send(&data);
- err = 0;
}
if (data.ff)
fuse_file_put(data.ff, false, false);
@@@ -2977,7 -2963,7 +2977,7 @@@ static void fuse_register_polled_file(s
{
spin_lock(&fc->lock);
if (RB_EMPTY_NODE(&ff->polled_node)) {
- struct rb_node **link, *uninitialized_var(parent);
+ struct rb_node **link, *parent;
link = fuse_find_polled_node(fc, ff->kh, &parent);
BUG_ON(*link);
@@@ -3396,7 -3382,6 +3396,6 @@@ static const struct file_operations fus
.fsync = fuse_fsync,
.lock = fuse_file_lock,
.flock = fuse_file_flock,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = fuse_file_ioctl,
.compat_ioctl = fuse_file_compat_ioctl,
diff --combined fs/gfs2/file.c
index 973cac25e781,3e0f0435c96a..8f172bbf5996
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@@ -781,44 -781,40 +781,44 @@@ static int gfs2_fsync(struct file *file
return ret ? ret : ret1;
}
-static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to)
+static ssize_t gfs2_file_direct_read(struct kiocb *iocb, struct iov_iter *to,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
size_t count = iov_iter_count(to);
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
if (!count)
return 0; /* skip atime */
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
- ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
- gfs2_glock_dq(&gh);
+ ret = iomap_dio_rw(iocb, to, &gfs2_iomap_ops, NULL, flags);
+
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
-static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
+static ssize_t gfs2_file_direct_write(struct kiocb *iocb, struct iov_iter *from,
+ struct gfs2_holder *gh)
{
struct file *file = iocb->ki_filp;
struct inode *inode = file->f_mapping->host;
struct gfs2_inode *ip = GFS2_I(inode);
size_t len = iov_iter_count(from);
loff_t offset = iocb->ki_pos;
- struct gfs2_holder gh;
ssize_t ret;
+ unsigned int flags = 0;
/*
* Deferred lock, even if its a write, since we do no allocation on
@@@ -828,8 -824,8 +828,8 @@@
* unfortunately, have the option of only flushing a range like the
* VFS does.
*/
- gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, &gh);
- ret = gfs2_glock_nq(&gh);
+ gfs2_holder_init(ip->i_gl, LM_ST_DEFERRED, 0, gh);
+ ret = gfs2_glock_nq(gh);
if (ret)
goto out_uninit;
@@@ -837,15 -833,13 +837,15 @@@
if (offset + len > i_size_read(&ip->i_inode))
goto out;
- ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, from, &gfs2_iomap_ops, NULL, flags);
out:
- gfs2_glock_dq(&gh);
+ gfs2_glock_dq(gh);
out_uninit:
- gfs2_holder_uninit(&gh);
+ gfs2_holder_uninit(gh);
return ret;
}
@@@ -857,7 -851,7 +857,7 @@@ static ssize_t gfs2_file_read_iter(stru
ssize_t ret;
if (iocb->ki_flags & IOCB_DIRECT) {
- ret = gfs2_file_direct_read(iocb, to);
+ ret = gfs2_file_direct_read(iocb, to, &gh);
if (likely(ret != -ENOTBLK))
return ret;
iocb->ki_flags &= ~IOCB_DIRECT;
@@@ -906,12 -900,13 +906,12 @@@ static ssize_t gfs2_file_write_iter(str
struct file *file = iocb->ki_filp;
struct inode *inode = file_inode(file);
struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_holder gh;
ssize_t ret;
gfs2_size_hint(file, iocb->ki_pos, iov_iter_count(from));
if (iocb->ki_flags & IOCB_APPEND) {
- struct gfs2_holder gh;
-
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
return ret;
@@@ -935,7 -930,7 +935,7 @@@
struct address_space *mapping = file->f_mapping;
ssize_t buffered, ret2;
- ret = gfs2_file_direct_write(iocb, from);
+ ret = gfs2_file_direct_write(iocb, from, &gh);
if (ret < 0 || !iov_iter_count(from))
goto out_unlock;
@@@ -1376,7 -1371,6 +1376,6 @@@ const struct file_operations gfs2_file_
.fsync = gfs2_fsync,
.lock = gfs2_lock,
.flock = gfs2_flock,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = simple_nosetlease,
.fallocate = gfs2_fallocate,
@@@ -1407,7 -1401,6 +1406,6 @@@ const struct file_operations gfs2_file_
.open = gfs2_open,
.release = gfs2_release,
.fsync = gfs2_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = gfs2_file_splice_write,
.setlease = generic_setlease,
.fallocate = gfs2_fallocate,
diff --combined fs/gfs2/glock.c
index 57134d326cfa,ffc9e4273a23..63a6c3e391e9
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@@ -2106,12 -2106,6 +2106,12 @@@ static const char *gflags2str(char *buf
*p++ = 'o';
if (test_bit(GLF_BLOCKING, gflags))
*p++ = 'b';
+ if (test_bit(GLF_INODE_CREATING, gflags))
+ *p++ = 'c';
+ if (test_bit(GLF_PENDING_DELETE, gflags))
+ *p++ = 'P';
+ if (test_bit(GLF_FREEING, gflags))
+ *p++ = 'x';
*p = 0;
return buf;
}
@@@ -2479,7 -2473,7 +2479,7 @@@ static int gfs2_sbstats_open(struct ino
static const struct file_operations gfs2_glocks_fops = {
.owner = THIS_MODULE,
.open = gfs2_glocks_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2487,7 -2481,7 +2487,7 @@@
static const struct file_operations gfs2_glstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_glstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = gfs2_glocks_release,
};
@@@ -2495,7 -2489,7 +2495,7 @@@
static const struct file_operations gfs2_sbstats_fops = {
.owner = THIS_MODULE,
.open = gfs2_sbstats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/hfs/inode.c
index f35a37c65e5f,6181d3818e17..8d78da646f74
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@@ -17,7 -17,6 +17,7 @@@
#include <linux/cred.h>
#include <linux/uio.h>
#include <linux/xattr.h>
+#include <linux/blkdev.h>
#include "hfs_fs.h"
#include "btree.h"
@@@ -683,7 -682,6 +683,6 @@@ static const struct file_operations hfs
.read_iter = generic_file_read_iter,
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
- .splice_read = generic_file_splice_read,
.fsync = hfs_file_fsync,
.open = hfs_file_open,
.release = hfs_file_release,
diff --combined fs/nfsd/nfsctl.c
index 7ae236113040,c6f2faa759d1..b36911385f5d
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@@ -159,7 -159,7 +159,7 @@@ static int exports_proc_open(struct ino
static const struct proc_ops exports_proc_ops = {
.proc_open = exports_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
};
@@@ -171,7 -171,7 +171,7 @@@ static int exports_nfsd_open(struct ino
static const struct file_operations exports_nfsd_operations = {
.open = exports_nfsd_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -189,7 -189,7 +189,7 @@@ static int export_features_open(struct
static const struct file_operations export_features_operations = {
.open = export_features_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -208,7 -208,7 +208,7 @@@ static int supported_enctypes_open(stru
static const struct file_operations supported_enctypes_ops = {
.open = supported_enctypes_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -216,14 -216,14 +216,14 @@@
static const struct file_operations pool_stats_operations = {
.open = nfsd_pool_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = nfsd_pool_stats_release,
};
static const struct file_operations reply_cache_stats_operations = {
.open = nfsd_reply_cache_stats_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = single_release,
};
@@@ -351,7 -351,7 +351,7 @@@ static ssize_t write_unlock_fs(struct f
static ssize_t write_filehandle(struct file *file, char *buf, size_t size)
{
char *dname, *path;
- int uninitialized_var(maxsize);
+ int maxsize;
char *mesg = buf;
int len;
struct auth_domain *dom;
diff --combined fs/omfs/file.c
index 2c7b70ee1388,0dddc6c644c1..cae3f4dcae54
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@@ -220,7 -220,7 +220,7 @@@ static int omfs_get_block(struct inode
struct buffer_head *bh;
sector_t next, offset;
int ret;
- u64 uninitialized_var(new_block);
+ u64 new_block;
u32 max_extents;
int extent_count;
struct omfs_extent *oe;
@@@ -340,7 -340,6 +340,6 @@@ const struct file_operations omfs_file_
.write_iter = generic_file_write_iter,
.mmap = generic_file_mmap,
.fsync = generic_file_fsync,
- .splice_read = generic_file_splice_read,
};
static int omfs_setattr(struct dentry *dentry, struct iattr *attr)
diff --combined fs/proc/array.c
index 65ec2029fa80,49456efa31e3..5f6c8a8cb701
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@@ -341,8 -341,6 +341,8 @@@ static inline void task_seccomp(struct
seq_put_decimal_ull(m, "NoNewPrivs:\t", task_no_new_privs(p));
#ifdef CONFIG_SECCOMP
seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode);
+ seq_put_decimal_ull(m, "\nSeccomp_filters:\t",
+ atomic_read(&p->seccomp.filter_count));
#endif
seq_puts(m, "\nSpeculation_Store_Bypass:\t");
switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
@@@ -768,7 -766,7 +768,7 @@@ static int children_seq_open(struct ino
const struct file_operations proc_tid_children_operations = {
.open = children_seq_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
diff --combined fs/proc/task_mmu.c
index 4f8ae353a8c5,df2f0f05f5ba..3465973308b7
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@@ -351,7 -351,7 +351,7 @@@ static int pid_maps_open(struct inode *
const struct file_operations proc_pid_maps_operations = {
.open = pid_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
@@@ -653,10 -653,6 +653,10 @@@ static void show_smap_vma_flags(struct
[ilog2(VM_MERGEABLE)] = "mg",
[ilog2(VM_UFFD_MISSING)]= "um",
[ilog2(VM_UFFD_WP)] = "uw",
+#ifdef CONFIG_ARM64_MTE
+ [ilog2(VM_MTE)] = "mt",
+ [ilog2(VM_MTE_ALLOWED)] = "",
+#endif
#ifdef CONFIG_ARCH_HAS_PKEYS
/* These come out via ProtectionKey: */
[ilog2(VM_PKEY_BIT0)] = "",
@@@ -937,14 -933,14 +937,14 @@@ static int smaps_rollup_release(struct
const struct file_operations proc_pid_smaps_operations = {
.open = pid_smaps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
const struct file_operations proc_pid_smaps_rollup_operations = {
.open = smaps_rollup_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = smaps_rollup_release,
};
@@@ -1883,7 -1879,7 +1883,7 @@@ static int pid_numa_maps_open(struct in
const struct file_operations proc_pid_numa_maps_operations = {
.open = pid_numa_maps_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = proc_map_release,
};
diff --combined fs/ubifs/file.c
index b77d1637bbbc,a3af46b39508..fb41c77cae1e
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@@ -222,7 -222,7 +222,7 @@@ static int write_begin_slow(struct addr
struct ubifs_info *c = inode->i_sb->s_fs_info;
pgoff_t index = pos >> PAGE_SHIFT;
struct ubifs_budget_req req = { .new_page = 1 };
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
struct page *page;
dbg_gen("ino %lu, pos %llu, len %u, i_size %lld",
@@@ -426,7 -426,7 +426,7 @@@ static int ubifs_write_begin(struct fil
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode);
pgoff_t index = pos >> PAGE_SHIFT;
- int uninitialized_var(err), appending = !!(pos + len > inode->i_size);
+ int err, appending = !!(pos + len > inode->i_size);
int skipped_read = 0;
struct page *page;
@@@ -1668,7 -1668,6 +1668,6 @@@ const struct file_operations ubifs_file
.mmap = ubifs_file_mmap,
.fsync = ubifs_fsync,
.unlocked_ioctl = ubifs_ioctl,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.open = fscrypt_file_open,
#ifdef CONFIG_COMPAT
diff --combined fs/xfs/xfs_file.c
index 781f72b06af0,964bc733e765..36ba167f0e80
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@@ -94,7 -94,6 +94,7 @@@ xfs_file_fsync
{
struct inode *inode = file->f_mapping->host;
struct xfs_inode *ip = XFS_I(inode);
+ struct xfs_inode_log_item *iip = ip->i_itemp;
struct xfs_mount *mp = ip->i_mount;
int error = 0;
int log_flushed = 0;
@@@ -138,15 -137,13 +138,15 @@@
xfs_ilock(ip, XFS_ILOCK_SHARED);
if (xfs_ipincount(ip)) {
if (!datasync ||
- (ip->i_itemp->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
- lsn = ip->i_itemp->ili_last_lsn;
+ (iip->ili_fsync_fields & ~XFS_ILOG_TIMESTAMP))
+ lsn = iip->ili_last_lsn;
}
if (lsn) {
error = xfs_log_force_lsn(mp, lsn, XFS_LOG_SYNC, &log_flushed);
- ip->i_itemp->ili_fsync_fields = 0;
+ spin_lock(&iip->ili_lock);
+ iip->ili_fsync_fields = 0;
+ spin_unlock(&iip->ili_lock);
}
xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@@ -172,8 -169,6 +172,8 @@@ xfs_file_dio_aio_read
struct xfs_inode *ip = XFS_I(file_inode(iocb->ki_filp));
size_t count = iov_iter_count(to);
ssize_t ret;
+ unsigned int flags = 0;
+
trace_xfs_file_direct_read(ip, count, iocb->ki_pos);
@@@ -188,11 -183,8 +188,11 @@@
} else {
xfs_ilock(ip, XFS_IOLOCK_SHARED);
}
- ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL,
- is_sync_kiocb(iocb));
+
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
+ ret = iomap_dio_rw(iocb, to, &xfs_read_iomap_ops, NULL, flags);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
return ret;
@@@ -491,7 -483,6 +491,7 @@@ xfs_file_dio_aio_write
int iolock;
size_t count = iov_iter_count(from);
struct xfs_buftarg *target = xfs_inode_buftarg(ip);
+ unsigned int flags = 0;
/* DIO must be aligned to device logical sector size */
if ((iocb->ki_pos | count) & target->bt_logical_sectormask)
@@@ -555,10 -546,9 +555,10 @@@
* If unaligned, this is the only IO in-flight. Wait on it before we
* release the iolock to prevent subsequent overlapping IO.
*/
+ if (is_sync_kiocb(iocb) || unaligned_io)
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, from, &xfs_direct_write_iomap_ops,
- &xfs_dio_write_ops,
- is_sync_kiocb(iocb) || unaligned_io);
+ &xfs_dio_write_ops, flags);
out:
xfs_iunlock(ip, iolock);
@@@ -1045,7 -1035,7 +1045,7 @@@ xfs_file_remap_range
/* Prepare and then clone file data. */
ret = xfs_reflink_remap_prep(file_in, pos_in, file_out, pos_out,
&len, remap_flags);
- if (ret < 0 || len == 0)
+ if (ret || len == 0)
return ret;
trace_xfs_reflink_remap_range(src, pos_in, len, dest, pos_out);
@@@ -1075,7 -1065,7 +1075,7 @@@
if (mp->m_flags & XFS_MOUNT_WSYNC)
xfs_log_force_inode(dest);
out_unlock:
- xfs_reflink_remap_unlock(file_in, file_out);
+ xfs_iunlock2_io_mmap(src, dest);
if (ret)
trace_xfs_reflink_remap_range_error(dest, ret, _RET_IP_);
return remapped > 0 ? remapped : ret;
@@@ -1090,7 -1080,7 +1090,7 @@@ xfs_file_open
return -EFBIG;
if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb)))
return -EIO;
- file->f_mode |= FMODE_NOWAIT;
+ file->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return 0;
}
@@@ -1273,23 -1263,10 +1273,23 @@@ xfs_filemap_pfn_mkwrite
return __xfs_filemap_fault(vmf, PE_SIZE_PTE, true);
}
+static void
+xfs_filemap_map_pages(
+ struct vm_fault *vmf,
+ pgoff_t start_pgoff,
+ pgoff_t end_pgoff)
+{
+ struct inode *inode = file_inode(vmf->vma->vm_file);
+
+ xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+ filemap_map_pages(vmf, start_pgoff, end_pgoff);
+ xfs_iunlock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
+}
+
static const struct vm_operations_struct xfs_file_vm_ops = {
.fault = xfs_filemap_fault,
.huge_fault = xfs_filemap_huge_fault,
- .map_pages = filemap_map_pages,
+ .map_pages = xfs_filemap_map_pages,
.page_mkwrite = xfs_filemap_page_mkwrite,
.pfn_mkwrite = xfs_filemap_pfn_mkwrite,
};
@@@ -1320,7 -1297,6 +1320,6 @@@ const struct file_operations xfs_file_o
.llseek = xfs_file_llseek,
.read_iter = xfs_file_read_iter,
.write_iter = xfs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
.unlocked_ioctl = xfs_file_ioctl,
diff --combined fs/zonefs/super.c
index 798e2e636887,d9f5fbeb5506..0d59e3fff1a7
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@@ -670,7 -670,6 +670,7 @@@ static ssize_t zonefs_file_dio_write(st
bool append = false;
size_t count;
ssize_t ret;
+ int flags = 0;
/*
* For async direct IOs to sequential zone files, refuse IOCB_NOWAIT
@@@ -712,15 -711,11 +712,15 @@@
append = sync;
}
- if (append)
+ if (append) {
ret = zonefs_file_dio_append(iocb, from);
- else
+ } else {
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
+
ret = iomap_dio_rw(iocb, from, &zonefs_iomap_ops,
- &zonefs_write_dio_ops, sync);
+ &zonefs_write_dio_ops, flags);
+ }
if (zi->i_ztype == ZONEFS_ZTYPE_SEQ &&
(ret > 0 || ret == -EIOCBQUEUED)) {
if (ret > 0)
@@@ -819,7 -814,6 +819,7 @@@ static ssize_t zonefs_file_read_iter(st
struct super_block *sb = inode->i_sb;
loff_t isize;
ssize_t ret;
+ int flags = 0;
/* Offline zones cannot be read */
if (unlikely(IS_IMMUTABLE(inode) && !(inode->i_mode & 0777)))
@@@ -854,10 -848,8 +854,10 @@@
goto inode_unlock;
}
file_accessed(iocb->ki_filp);
+ if (is_sync_kiocb(iocb))
+ flags |= IOMAP_DIO_RWF_SYNCIO;
ret = iomap_dio_rw(iocb, to, &zonefs_iomap_ops,
- &zonefs_read_dio_ops, is_sync_kiocb(iocb));
+ &zonefs_read_dio_ops, flags);
} else {
ret = generic_file_read_iter(iocb, to);
if (ret == -EIO)
@@@ -877,7 -869,6 +877,6 @@@ static const struct file_operations zon
.llseek = zonefs_file_llseek,
.read_iter = zonefs_file_read_iter,
.write_iter = zonefs_file_write_iter,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.iopoll = iomap_dio_iopoll,
};
diff --combined include/linux/bpf-cgroup.h
index 2c6f26670acc,f81d3b3752f9..a4079965c98e
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@@ -132,7 -132,7 +132,7 @@@ int __cgroup_bpf_check_dev_permission(s
int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head,
struct ctl_table *table, int write,
- void **buf, size_t *pcount, loff_t *ppos,
+ char **buf, size_t *pcount, loff_t *ppos,
enum bpf_attach_type type);
int __cgroup_bpf_run_filter_setsockopt(struct sock *sock, int *level,
@@@ -210,9 -210,6 +210,9 @@@ int bpf_percpu_cgroup_storage_update(st
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_CREATE)
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) \
+ BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET_SOCK_RELEASE)
+
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) \
BPF_CGROUP_RUN_SK_PROG(sk, BPF_CGROUP_INET4_POST_BIND)
@@@ -404,7 -401,6 +404,7 @@@ static inline int bpf_percpu_cgroup_sto
#define BPF_CGROUP_RUN_PROG_INET_INGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_EGRESS(sk,skb) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET_SOCK(sk) ({ 0; })
+#define BPF_CGROUP_RUN_PROG_INET_SOCK_RELEASE(sk) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET6_BIND(sk, uaddr) ({ 0; })
#define BPF_CGROUP_RUN_PROG_INET4_POST_BIND(sk) ({ 0; })
diff --combined include/linux/fs.h
index a771d4f2e41d,7680752cff24..166ae3eafb58
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@@ -39,7 -39,6 +39,7 @@@
#include <linux/fs_types.h>
#include <linux/build_bug.h>
#include <linux/stddef.h>
+#include <linux/watch_queue.h>
#include <asm/byteorder.h>
#include <uapi/linux/fs.h>
@@@ -69,7 -68,6 +69,7 @@@ struct fsverity_info
struct fsverity_operations;
struct fs_context;
struct fs_parameter_spec;
+struct fsinfo_context;
extern void __init inode_init(void);
extern void __init inode_init_early(void);
@@@ -177,9 -175,6 +177,9 @@@ typedef int (dio_iodone_t)(struct kioc
/* File does not contribute to nr_files count */
#define FMODE_NOACCOUNT ((__force fmode_t)0x20000000)
+/* File supports async buffered reads */
+#define FMODE_BUF_RASYNC ((__force fmode_t)0x40000000)
+
/*
* Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
* that indicates that they should check the contents of the iovec are
@@@ -320,8 -315,6 +320,8 @@@ enum rw_hint
#define IOCB_SYNC (1 << 5)
#define IOCB_WRITE (1 << 6)
#define IOCB_NOWAIT (1 << 7)
+/* iocb->ki_waitq is valid */
+#define IOCB_WAITQ (1 << 8)
#define IOCB_NOIO (1 << 9)
struct kiocb {
@@@ -336,10 -329,7 +336,10 @@@
int ki_flags;
u16 ki_hint;
u16 ki_ioprio; /* See linux/ioprio.h */
- unsigned int ki_cookie; /* for ->iopoll */
+ union {
+ unsigned int ki_cookie; /* for ->iopoll */
+ struct wait_page_queue *ki_waitq; /* for async buffered IO */
+ };
randomized_struct_fields_end
};
@@@ -481,6 -471,45 +481,6 @@@ struct address_space
* must be enforced here for CRIS, to let the least significant bit
* of struct page's "mapping" pointer be used for PAGE_MAPPING_ANON.
*/
-struct request_queue;
-
-struct block_device {
- dev_t bd_dev; /* not a kdev_t - it's a search key */
- int bd_openers;
- struct inode * bd_inode; /* will die */
- struct super_block * bd_super;
- struct mutex bd_mutex; /* open/close mutex */
- void * bd_claiming;
- void * bd_holder;
- int bd_holders;
- bool bd_write_holder;
-#ifdef CONFIG_SYSFS
- struct list_head bd_holder_disks;
-#endif
- struct block_device * bd_contains;
- unsigned bd_block_size;
- u8 bd_partno;
- struct hd_struct * bd_part;
- /* number of times partitions within this device have been opened. */
- unsigned bd_part_count;
- int bd_invalidated;
- struct gendisk * bd_disk;
- struct request_queue * bd_queue;
- struct backing_dev_info *bd_bdi;
- struct list_head bd_list;
- /*
- * Private data. You must have bd_claim'ed the block_device
- * to use this. NOTE: bd_claim allows an owner to claim
- * the same device multiple times, the owner must take special
- * care to not mess up bd_private for that case.
- */
- unsigned long bd_private;
-
- /* The counter of freeze processes */
- int bd_fsfreeze_count;
- /* Mutex for freeze */
- struct mutex bd_fsfreeze_mutex;
-} __randomize_layout;
/* XArray tags, for tagging dirty and writeback pages in the pagecache. */
#define PAGECACHE_TAG_DIRTY XA_MARK_0
@@@ -879,6 -908,8 +879,6 @@@ static inline unsigned imajor(const str
return MAJOR(inode->i_rdev);
}
-extern struct block_device *I_BDEV(struct inode *inode);
-
struct fown_struct {
rwlock_t lock; /* protects pid, uid, euid fields */
struct pid *pid; /* pid or -pgrp where SIGIO should be sent */
@@@ -1350,7 -1381,6 +1350,7 @@@ extern int send_sigurg(struct fown_stru
#define SB_NODIRATIME 2048 /* Do not update directory access times */
#define SB_SILENT 32768
#define SB_POSIXACL (1<<16) /* VFS does not apply the umask */
+#define SB_INLINECRYPT (1<<17) /* Use blk-crypto for encrypted files */
#define SB_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define SB_I_VERSION (1<<23) /* Update inode I_version field */
#define SB_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
@@@ -1534,15 -1564,6 +1534,15 @@@ struct super_block
spinlock_t s_inode_wblist_lock;
struct list_head s_inodes_wb; /* writeback inodes */
+
+ /* Superblock event notifications */
+ u64 s_unique_id;
+
+#ifdef CONFIG_SB_NOTIFICATIONS
+ struct watch_list *s_watchers;
+#endif
+ atomic_t s_change_counter; /* Count of config change notifications */
+ atomic_t s_notify_counter; /* Count of other notifications */
} __randomize_layout;
/* Helper functions so that in most cases filesystems will
@@@ -1754,6 -1775,14 +1754,6 @@@ struct dir_context
loff_t pos;
};
-struct block_device_operations;
-
-/* These macros are for out of kernel modules to test that
- * the kernel supports the unlocked_ioctl and compat_ioctl
- * fields in struct file_operations. */
-#define HAVE_COMPAT_IOCTL 1
-#define HAVE_UNLOCKED_IOCTL 1
-
/*
* These flags let !MMU mmap() govern direct device mapping vs immediate
* copying more easily for MAP_PRIVATE, especially for ROM filesystems.
@@@ -1891,8 -1920,6 +1891,6 @@@ ssize_t rw_copy_check_uvector(int type
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
- extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
- unsigned long, loff_t *, rwf_t);
extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
loff_t, size_t, unsigned int);
extern ssize_t generic_copy_file_range(struct file *file_in, loff_t pos_in,
@@@ -1931,9 -1958,6 +1929,9 @@@ struct super_operations
int (*thaw_super) (struct super_block *);
int (*unfreeze_fs) (struct super_block *);
int (*statfs) (struct dentry *, struct kstatfs *);
+#ifdef CONFIG_FSINFO
+ int (*fsinfo)(struct path *, struct fsinfo_context *);
+#endif
int (*remount_fs) (struct super_block *, int *, char *);
void (*umount_begin) (struct super_block *);
@@@ -2132,10 -2156,6 +2130,10 @@@ static inline void kiocb_clone(struct k
*
* I_DONTCACHE Evict inode as soon as it is not used anymore.
*
+ * I_SYNC_QUEUED Inode is queued in b_io or b_more_io writeback lists.
+ * Used to detect that mark_inode_dirty() should not move
+ * inode between dirty lists.
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@@ -2153,11 -2173,12 +2151,11 @@@
#define I_DIO_WAKEUP (1 << __I_DIO_WAKEUP)
#define I_LINKABLE (1 << 10)
#define I_DIRTY_TIME (1 << 11)
-#define __I_DIRTY_TIME_EXPIRED 12
-#define I_DIRTY_TIME_EXPIRED (1 << __I_DIRTY_TIME_EXPIRED)
#define I_WB_SWITCH (1 << 13)
#define I_OVL_INUSE (1 << 14)
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
+#define I_SYNC_QUEUED (1 << 17)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
@@@ -2241,9 -2262,18 +2239,9 @@@ struct file_system_type
#define MODULE_ALIAS_FS(NAME) MODULE_ALIAS("fs-" NAME)
-#ifdef CONFIG_BLOCK
extern struct dentry *mount_bdev(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data,
int (*fill_super)(struct super_block *, void *, int));
-#else
-static inline struct dentry *mount_bdev(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data,
- int (*fill_super)(struct super_block *, void *, int))
-{
- return ERR_PTR(-ENODEV);
-}
-#endif
extern struct dentry *mount_single(struct file_system_type *fs_type,
int flags, void *data,
int (*fill_super)(struct super_block *, void *, int));
@@@ -2252,7 -2282,14 +2250,7 @@@ extern struct dentry *mount_nodev(struc
int (*fill_super)(struct super_block *, void *, int));
extern struct dentry *mount_subtree(struct vfsmount *mnt, const char *path);
void generic_shutdown_super(struct super_block *sb);
-#ifdef CONFIG_BLOCK
void kill_block_super(struct super_block *sb);
-#else
-static inline void kill_block_super(struct super_block *sb)
-{
- BUG();
-}
-#endif
void kill_anon_super(struct super_block *sb);
void kill_litter_super(struct super_block *sb);
void deactivate_super(struct super_block *sb);
@@@ -2542,16 -2579,93 +2540,16 @@@ extern struct kmem_cache *names_cachep
#define __getname() kmem_cache_alloc(names_cachep, GFP_KERNEL)
#define __putname(name) kmem_cache_free(names_cachep, (void *)(name))
-#ifdef CONFIG_BLOCK
-extern int register_blkdev(unsigned int, const char *);
-extern void unregister_blkdev(unsigned int, const char *);
-extern struct block_device *bdget(dev_t);
-extern struct block_device *bdgrab(struct block_device *bdev);
-extern void bd_set_size(struct block_device *, loff_t size);
-extern void bd_forget(struct inode *inode);
-extern void bdput(struct block_device *);
-extern void invalidate_bdev(struct block_device *);
-extern void iterate_bdevs(void (*)(struct block_device *, void *), void *);
-extern int sync_blockdev(struct block_device *bdev);
-extern struct super_block *freeze_bdev(struct block_device *);
-extern void emergency_thaw_all(void);
-extern void emergency_thaw_bdev(struct super_block *sb);
-extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
-extern int fsync_bdev(struct block_device *);
-
extern struct super_block *blockdev_superblock;
-
static inline bool sb_is_blkdev_sb(struct super_block *sb)
{
- return sb == blockdev_superblock;
-}
-#else
-static inline void bd_forget(struct inode *inode) {}
-static inline int sync_blockdev(struct block_device *bdev) { return 0; }
-static inline void invalidate_bdev(struct block_device *bdev) {}
-
-static inline struct super_block *freeze_bdev(struct block_device *sb)
-{
- return NULL;
-}
-
-static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)
-{
- return 0;
-}
-
-static inline int emergency_thaw_bdev(struct super_block *sb)
-{
- return 0;
-}
-
-static inline void iterate_bdevs(void (*f)(struct block_device *, void *), void *arg)
-{
+ return IS_ENABLED(CONFIG_BLOCK) && sb == blockdev_superblock;
}
-static inline bool sb_is_blkdev_sb(struct super_block *sb)
-{
- return false;
-}
-#endif
+void emergency_thaw_all(void);
extern int sync_filesystem(struct super_block *);
extern const struct file_operations def_blk_fops;
extern const struct file_operations def_chr_fops;
-#ifdef CONFIG_BLOCK
-extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long);
-extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long);
-extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder);
-extern struct block_device *blkdev_get_by_path(const char *path, fmode_t mode,
- void *holder);
-extern struct block_device *blkdev_get_by_dev(dev_t dev, fmode_t mode,
- void *holder);
-extern struct block_device *bd_start_claiming(struct block_device *bdev,
- void *holder);
-extern void bd_finish_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void bd_abort_claiming(struct block_device *bdev,
- struct block_device *whole, void *holder);
-extern void blkdev_put(struct block_device *bdev, fmode_t mode);
-
-#ifdef CONFIG_SYSFS
-extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
-extern void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk);
-#else
-static inline int bd_link_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
- return 0;
-}
-static inline void bd_unlink_disk_holder(struct block_device *bdev,
- struct gendisk *disk)
-{
-}
-#endif
-#endif
/* fs/char_dev.c */
#define CHRDEV_MAJOR_MAX 512
@@@ -2582,12 -2696,31 +2580,12 @@@ static inline void unregister_chrdev(un
__unregister_chrdev(major, 0, 256, name);
}
-/* fs/block_dev.c */
-#define BDEVNAME_SIZE 32 /* Largest string for a blockdev identifier */
-#define BDEVT_SIZE 10 /* Largest string for MAJ:MIN for blkdev */
-
-#ifdef CONFIG_BLOCK
-#define BLKDEV_MAJOR_MAX 512
-extern const char *bdevname(struct block_device *bdev, char *buffer);
-extern struct block_device *lookup_bdev(const char *);
-extern void blkdev_show(struct seq_file *,off_t);
-
-#else
-#define BLKDEV_MAJOR_MAX 0
-#endif
-
extern void init_special_inode(struct inode *, umode_t, dev_t);
/* Invalid inode operations -- fs/bad_inode.c */
extern void make_bad_inode(struct inode *);
extern bool is_bad_inode(struct inode *);
-#ifdef CONFIG_BLOCK
-extern int revalidate_disk(struct gendisk *);
-extern int check_disk_change(struct block_device *);
-extern int __invalidate_device(struct block_device *, bool);
-#endif
unsigned long invalidate_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t end);
@@@ -2692,7 -2825,7 +2690,7 @@@ static inline errseq_t filemap_sample_w
/**
* file_sample_sb_err - sample the current errseq_t to test for later errors
- * @mapping: mapping to be sampled
+ * @file: file pointer to be sampled
*
* Grab the most current superblock-level errseq_t value for the given
* struct file.
@@@ -2988,6 -3121,10 +2986,6 @@@ static inline void remove_inode_hash(st
extern void inode_sb_list_add(struct inode *inode);
-#ifdef CONFIG_BLOCK
-extern int bdev_read_only(struct block_device *);
-#endif
-extern int set_blocksize(struct block_device *, int);
extern int sb_set_blocksize(struct super_block *, int);
extern int sb_min_blocksize(struct super_block *, int);
@@@ -3525,56 -3662,4 +3523,56 @@@ static inline int inode_drain_writes(st
return filemap_write_and_wait(inode->i_mapping);
}
+extern void __notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info);
+extern void __notify_sb_error(struct super_block *s, int error);
+extern void __notify_sb_EQDUOT(struct super_block *s);
+
+/**
+ * notify_sb: Post simple superblock notification.
+ * @s: The superblock the notification is about.
+ * @subtype: The type of notification.
+ * @info: WATCH_INFO_FLAG_* flags to be set in the record.
+ */
+static inline void notify_sb(struct super_block *s,
+ enum superblock_notification_type subtype,
+ u32 info)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_change_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb(s, subtype, info);
+#endif
+}
+
+/**
+ * notify_sb_error: Post superblock error notification.
+ * @s: The superblock the notification is about.
+ * @error: The error number to be recorded.
+ */
+static inline int notify_sb_error(struct super_block *s, int error)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_error(s, error);
+#endif
+ return error;
+}
+
+/**
+ * notify_sb_EDQUOT: Post superblock quota overrun notification.
+ * @s: The superblock the notification is about.
+ */
+static inline int notify_sb_EQDUOT(struct super_block *s)
+{
+#ifdef CONFIG_SB_NOTIFICATIONS
+ atomic_inc(&s->s_notify_counter);
+ if (unlikely(READ_ONCE(s->s_watchers)))
+ __notify_sb_EQDUOT(s);
+#endif
+ return -EDQUOT;
+}
+
#endif /* _LINUX_FS_H */
diff --combined kernel/kallsyms.c
index 95cb74f73292,1c46a1f2e9f9..ad0646efe554
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@@ -24,7 -24,6 +24,7 @@@
#include <linux/slab.h>
#include <linux/filter.h>
#include <linux/ftrace.h>
+#include <linux/kprobes.h>
#include <linux/compiler.h>
/*
@@@ -438,7 -437,6 +438,7 @@@ struct kallsym_iter
loff_t pos_arch_end;
loff_t pos_mod_end;
loff_t pos_ftrace_mod_end;
+ loff_t pos_bpf_end;
unsigned long value;
unsigned int nameoff; /* If iterating in core kernel symbols. */
char type;
@@@ -482,11 -480,6 +482,11 @@@ static int get_ksymbol_mod(struct kalls
return 1;
}
+/*
+ * ftrace_mod_get_kallsym() may also get symbols for pages allocated for ftrace
+ * purposes. In that case "__builtin__ftrace" is used as a module name, even
+ * though "__builtin__ftrace" is not a module.
+ */
static int get_ksymbol_ftrace_mod(struct kallsym_iter *iter)
{
int ret = ftrace_mod_get_kallsym(iter->pos - iter->pos_mod_end,
@@@ -503,33 -496,11 +503,33 @@@
static int get_ksymbol_bpf(struct kallsym_iter *iter)
{
+ int ret;
+
strlcpy(iter->module_name, "bpf", MODULE_NAME_LEN);
iter->exported = 0;
- return bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
- &iter->value, &iter->type,
- iter->name) < 0 ? 0 : 1;
+ ret = bpf_get_kallsym(iter->pos - iter->pos_ftrace_mod_end,
+ &iter->value, &iter->type,
+ iter->name);
+ if (ret < 0) {
+ iter->pos_bpf_end = iter->pos;
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * This uses "__builtin__kprobes" as a module name for symbols for pages
+ * allocated for kprobes' purposes, even though "__builtin__kprobes" is not a
+ * module.
+ */
+static int get_ksymbol_kprobe(struct kallsym_iter *iter)
+{
+ strlcpy(iter->module_name, "__builtin__kprobes", MODULE_NAME_LEN);
+ iter->exported = 0;
+ return kprobe_get_kallsym(iter->pos - iter->pos_bpf_end,
+ &iter->value, &iter->type,
+ iter->name) < 0 ? 0 : 1;
}
/* Returns space to next name. */
@@@ -556,7 -527,6 +556,7 @@@ static void reset_iter(struct kallsym_i
iter->pos_arch_end = 0;
iter->pos_mod_end = 0;
iter->pos_ftrace_mod_end = 0;
+ iter->pos_bpf_end = 0;
}
}
@@@ -581,11 -551,7 +581,11 @@@ static int update_iter_mod(struct kalls
get_ksymbol_ftrace_mod(iter))
return 1;
- return get_ksymbol_bpf(iter);
+ if ((!iter->pos_bpf_end || iter->pos_bpf_end > pos) &&
+ get_ksymbol_bpf(iter))
+ return 1;
+
+ return get_ksymbol_kprobe(iter);
}
/* Returns false if pos at or past end of file. */
@@@ -738,7 -704,7 +738,7 @@@ const char *kdb_walk_kallsyms(loff_t *p
static const struct proc_ops kallsyms_proc_ops = {
.proc_open = kallsyms_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release_private,
};
diff --combined kernel/sched/psi.c
index 967732c0766c,6795170140a0..4c084d66746a
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@@ -190,6 -190,7 +190,6 @@@ static void group_init(struct psi_grou
INIT_DELAYED_WORK(&group->avgs_work, psi_avgs_work);
mutex_init(&group->avgs_lock);
/* Init trigger-related members */
- atomic_set(&group->poll_scheduled, 0);
mutex_init(&group->trigger_lock);
INIT_LIST_HEAD(&group->triggers);
memset(group->nr_triggers, 0, sizeof(group->nr_triggers));
@@@ -198,7 -199,7 +198,7 @@@
memset(group->polling_total, 0, sizeof(group->polling_total));
group->polling_next_update = ULLONG_MAX;
group->polling_until = 0;
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
void __init psi_init(void)
@@@ -546,38 -547,47 +546,38 @@@ static u64 update_triggers(struct psi_g
return now + group->poll_min_period;
}
-/*
- * Schedule polling if it's not already scheduled. It's safe to call even from
- * hotpath because even though kthread_queue_delayed_work takes worker->lock
- * spinlock that spinlock is never contended due to poll_scheduled atomic
- * preventing such competition.
- */
+/* Schedule polling if it's not already scheduled. */
static void psi_schedule_poll_work(struct psi_group *group, unsigned long delay)
{
- struct kthread_worker *kworker;
+ struct task_struct *task;
- /* Do not reschedule if already scheduled */
- if (atomic_cmpxchg(&group->poll_scheduled, 0, 1) != 0)
+ /*
+ * Do not reschedule if already scheduled.
+ * Possible race with a timer scheduled after this check but before
+ * mod_timer below can be tolerated because group->polling_next_update
+ * will keep updates on schedule.
+ */
+ if (timer_pending(&group->poll_timer))
return;
rcu_read_lock();
- kworker = rcu_dereference(group->poll_kworker);
+ task = rcu_dereference(group->poll_task);
/*
* kworker might be NULL in case psi_trigger_destroy races with
* psi_task_change (hotpath) which can't use locks
*/
- if (likely(kworker))
- kthread_queue_delayed_work(kworker, &group->poll_work, delay);
- else
- atomic_set(&group->poll_scheduled, 0);
+ if (likely(task))
+ mod_timer(&group->poll_timer, jiffies + delay);
rcu_read_unlock();
}
-static void psi_poll_work(struct kthread_work *work)
+static void psi_poll_work(struct psi_group *group)
{
- struct kthread_delayed_work *dwork;
- struct psi_group *group;
u32 changed_states;
u64 now;
- dwork = container_of(work, struct kthread_delayed_work, work);
- group = container_of(dwork, struct psi_group, poll_work);
-
- atomic_set(&group->poll_scheduled, 0);
-
mutex_lock(&group->trigger_lock);
now = sched_clock();
@@@ -613,32 -623,6 +613,32 @@@ out
mutex_unlock(&group->trigger_lock);
}
+static int psi_poll_worker(void *data)
+{
+ struct psi_group *group = (struct psi_group *)data;
+
+ sched_set_fifo_low(current);
+
+ while (true) {
+ wait_event_interruptible(group->poll_wait,
+ atomic_cmpxchg(&group->poll_wakeup, 1, 0) ||
+ kthread_should_stop());
+ if (kthread_should_stop())
+ break;
+
+ psi_poll_work(group);
+ }
+ return 0;
+}
+
+static void poll_timer_fn(struct timer_list *t)
+{
+ struct psi_group *group = from_timer(group, t, poll_timer);
+
+ atomic_set(&group->poll_wakeup, 1);
+ wake_up_interruptible(&group->poll_wait);
+}
+
static void record_times(struct psi_group_cpu *groupc, int cpu,
bool memstall_tick)
{
@@@ -1115,20 -1099,22 +1115,20 @@@ struct psi_trigger *psi_trigger_create(
mutex_lock(&group->trigger_lock);
- if (!rcu_access_pointer(group->poll_kworker)) {
- struct sched_param param = {
- .sched_priority = 1,
- };
- struct kthread_worker *kworker;
+ if (!rcu_access_pointer(group->poll_task)) {
+ struct task_struct *task;
- kworker = kthread_create_worker(0, "psimon");
- if (IS_ERR(kworker)) {
+ task = kthread_create(psi_poll_worker, group, "psimon");
+ if (IS_ERR(task)) {
kfree(t);
mutex_unlock(&group->trigger_lock);
- return ERR_CAST(kworker);
+ return ERR_CAST(task);
}
- sched_setscheduler_nocheck(kworker->task, SCHED_FIFO, ¶m);
- kthread_init_delayed_work(&group->poll_work,
- psi_poll_work);
- rcu_assign_pointer(group->poll_kworker, kworker);
+ atomic_set(&group->poll_wakeup, 0);
+ init_waitqueue_head(&group->poll_wait);
+ wake_up_process(task);
+ timer_setup(&group->poll_timer, poll_timer_fn, 0);
+ rcu_assign_pointer(group->poll_task, task);
}
list_add(&t->node, &group->triggers);
@@@ -1146,7 -1132,7 +1146,7 @@@ static void psi_trigger_destroy(struct
{
struct psi_trigger *t = container_of(ref, struct psi_trigger, refcount);
struct psi_group *group = t->group;
- struct kthread_worker *kworker_to_destroy = NULL;
+ struct task_struct *task_to_destroy = NULL;
if (static_branch_likely(&psi_disabled))
return;
@@@ -1172,13 -1158,13 +1172,13 @@@
period = min(period, div_u64(tmp->win.size,
UPDATES_PER_WINDOW));
group->poll_min_period = period;
- /* Destroy poll_kworker when the last trigger is destroyed */
+ /* Destroy poll_task when the last trigger is destroyed */
if (group->poll_states == 0) {
group->polling_until = 0;
- kworker_to_destroy = rcu_dereference_protected(
- group->poll_kworker,
+ task_to_destroy = rcu_dereference_protected(
+ group->poll_task,
lockdep_is_held(&group->trigger_lock));
- rcu_assign_pointer(group->poll_kworker, NULL);
+ rcu_assign_pointer(group->poll_task, NULL);
}
}
@@@ -1186,23 -1172,25 +1186,23 @@@
/*
* Wait for both *trigger_ptr from psi_trigger_replace and
- * poll_kworker RCUs to complete their read-side critical sections
- * before destroying the trigger and optionally the poll_kworker
+ * poll_task RCUs to complete their read-side critical sections
+ * before destroying the trigger and optionally the poll_task
*/
synchronize_rcu();
/*
* Destroy the kworker after releasing trigger_lock to prevent a
* deadlock while waiting for psi_poll_work to acquire trigger_lock
*/
- if (kworker_to_destroy) {
+ if (task_to_destroy) {
/*
* After the RCU grace period has expired, the worker
- * can no longer be found through group->poll_kworker.
+ * can no longer be found through group->poll_task.
* But it might have been already scheduled before
* that - deschedule it cleanly before destroying it.
*/
- kthread_cancel_delayed_work_sync(&group->poll_work);
- atomic_set(&group->poll_scheduled, 0);
-
- kthread_destroy_worker(kworker_to_destroy);
+ del_timer_sync(&group->poll_timer);
+ kthread_stop(task_to_destroy);
}
kfree(t);
}
@@@ -1317,7 -1305,7 +1317,7 @@@ static int psi_fop_release(struct inod
static const struct proc_ops psi_io_proc_ops = {
.proc_open = psi_io_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_io_write,
.proc_poll = psi_fop_poll,
@@@ -1326,7 -1314,7 +1326,7 @@@
static const struct proc_ops psi_memory_proc_ops = {
.proc_open = psi_memory_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_memory_write,
.proc_poll = psi_fop_poll,
@@@ -1335,7 -1323,7 +1335,7 @@@
static const struct proc_ops psi_cpu_proc_ops = {
.proc_open = psi_cpu_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_write = psi_cpu_write,
.proc_poll = psi_fop_poll,
diff --combined kernel/trace/ftrace.c
index 62e9b93d5fee,6a645f2ebf47..a3093a84bae3
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@@ -2388,14 -2388,6 +2388,14 @@@ struct ftrace_ops direct_ops =
.flags = FTRACE_OPS_FL_IPMODIFY | FTRACE_OPS_FL_RECURSION_SAFE
| FTRACE_OPS_FL_DIRECT | FTRACE_OPS_FL_SAVE_REGS
| FTRACE_OPS_FL_PERMANENT,
+ /*
+ * By declaring the main trampoline as this trampoline
+ * it will never have one allocated for it. Allocated
+ * trampolines should not call direct functions.
+ * The direct_ops should only be called by the builtin
+ * ftrace_regs_caller trampoline.
+ */
+ .trampoline = FTRACE_REGS_ADDR,
};
#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
@@@ -2772,50 -2764,6 +2772,50 @@@ void __weak arch_ftrace_trampoline_free
{
}
+/* List of trace_ops that have allocated trampolines */
+static LIST_HEAD(ftrace_ops_trampoline_list);
+
+static void ftrace_add_trampoline_to_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_add_rcu(&ops->list, &ftrace_ops_trampoline_list);
+}
+
+static void ftrace_remove_trampoline_from_kallsyms(struct ftrace_ops *ops)
+{
+ lockdep_assert_held(&ftrace_lock);
+ list_del_rcu(&ops->list);
+}
+
+/*
+ * "__builtin__ftrace" is used as a module name in /proc/kallsyms for symbols
+ * for pages allocated for ftrace purposes, even though "__builtin__ftrace" is
+ * not a module.
+ */
+#define FTRACE_TRAMPOLINE_MOD "__builtin__ftrace"
+#define FTRACE_TRAMPOLINE_SYM "ftrace_trampoline"
+
+static void ftrace_trampoline_free(struct ftrace_ops *ops)
+{
+ if (ops && (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP) &&
+ ops->trampoline) {
+ /*
+ * Record the text poke event before the ksymbol unregister
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline,
+ (void *)ops->trampoline,
+ ops->trampoline_size, NULL, 0);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size,
+ true, FTRACE_TRAMPOLINE_SYM);
+ /* Remove from kallsyms after the perf events */
+ ftrace_remove_trampoline_from_kallsyms(ops);
+ }
+
+ arch_ftrace_trampoline_free(ops);
+}
+
static void ftrace_startup_enable(int command)
{
if (saved_ftrace_func != ftrace_trace_function) {
@@@ -2986,7 -2934,7 +2986,7 @@@ int ftrace_shutdown(struct ftrace_ops *
synchronize_rcu_tasks();
free_ops:
- arch_ftrace_trampoline_free(ops);
+ ftrace_trampoline_free(ops);
}
return 0;
@@@ -5613,21 -5561,21 +5613,21 @@@ int ftrace_regex_release(struct inode *
static const struct file_operations ftrace_avail_fops = {
.open = ftrace_avail_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_enabled_fops = {
.open = ftrace_enabled_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release_private,
};
static const struct file_operations ftrace_filter_fops = {
.open = ftrace_filter_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_filter_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -5635,7 -5583,7 +5635,7 @@@
static const struct file_operations ftrace_notrace_fops = {
.open = ftrace_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_notrace_write,
.llseek = tracing_lseek,
.release = ftrace_regex_release,
@@@ -6033,7 -5981,7 +6033,7 @@@ ftrace_graph_write(struct file *file, c
static const struct file_operations ftrace_graph_fops = {
.open = ftrace_graph_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6041,7 -5989,7 +6041,7 @@@
static const struct file_operations ftrace_graph_notrace_fops = {
.open = ftrace_graph_notrace_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = ftrace_graph_write,
.llseek = tracing_lseek,
.release = ftrace_graph_release,
@@@ -6230,27 -6178,6 +6230,27 @@@ struct ftrace_mod_map
unsigned int num_funcs;
};
+static int ftrace_get_trampoline_kallsym(unsigned int symnum,
+ unsigned long *value, char *type,
+ char *name, char *module_name,
+ int *exported)
+{
+ struct ftrace_ops *op;
+
+ list_for_each_entry_rcu(op, &ftrace_ops_trampoline_list, list) {
+ if (!op->trampoline || symnum--)
+ continue;
+ *value = op->trampoline;
+ *type = 't';
+ strlcpy(name, FTRACE_TRAMPOLINE_SYM, KSYM_NAME_LEN);
+ strlcpy(module_name, FTRACE_TRAMPOLINE_MOD, MODULE_NAME_LEN);
+ *exported = 0;
+ return 0;
+ }
+
+ return -ERANGE;
+}
+
#ifdef CONFIG_MODULES
#define next_to_ftrace_page(p) container_of(p, struct ftrace_page, next)
@@@ -6587,7 -6514,6 +6587,7 @@@ int ftrace_mod_get_kallsym(unsigned in
{
struct ftrace_mod_map *mod_map;
struct ftrace_mod_func *mod_func;
+ int ret;
preempt_disable();
list_for_each_entry_rcu(mod_map, &ftrace_mod_maps, list) {
@@@ -6614,10 -6540,8 +6614,10 @@@
WARN_ON(1);
break;
}
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
preempt_enable();
- return -ERANGE;
+ return ret;
}
#else
@@@ -6629,18 -6553,6 +6629,18 @@@ allocate_ftrace_mod_map(struct module *
{
return NULL;
}
+int ftrace_mod_get_kallsym(unsigned int symnum, unsigned long *value,
+ char *type, char *name, char *module_name,
+ int *exported)
+{
+ int ret;
+
+ preempt_disable();
+ ret = ftrace_get_trampoline_kallsym(symnum, value, type, name,
+ module_name, exported);
+ preempt_enable();
+ return ret;
+}
#endif /* CONFIG_MODULES */
struct ftrace_init_func {
@@@ -6821,24 -6733,7 +6821,24 @@@ void __weak arch_ftrace_update_trampoli
static void ftrace_update_trampoline(struct ftrace_ops *ops)
{
+ unsigned long trampoline = ops->trampoline;
+
arch_ftrace_update_trampoline(ops);
+ if (ops->trampoline && ops->trampoline != trampoline &&
+ (ops->flags & FTRACE_OPS_FL_ALLOC_TRAMP)) {
+ /* Add to kallsyms before the perf events */
+ ftrace_add_trampoline_to_kallsyms(ops);
+ perf_event_ksymbol(PERF_RECORD_KSYMBOL_TYPE_OOL,
+ ops->trampoline, ops->trampoline_size, false,
+ FTRACE_TRAMPOLINE_SYM);
+ /*
+ * Record the perf text poke event after the ksymbol register
+ * event.
+ */
+ perf_event_text_poke((void *)ops->trampoline, NULL, 0,
+ (void *)ops->trampoline,
+ ops->trampoline_size);
+ }
}
void ftrace_init_trace_array(struct trace_array *tr)
@@@ -7411,7 -7306,7 +7411,7 @@@ ftrace_pid_release(struct inode *inode
static const struct file_operations ftrace_pid_fops = {
.open = ftrace_pid_open,
.write = ftrace_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
@@@ -7419,7 -7314,7 +7419,7 @@@
static const struct file_operations ftrace_no_pid_fops = {
.open = ftrace_no_pid_open,
.write = ftrace_no_pid_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = tracing_lseek,
.release = ftrace_pid_release,
};
diff --combined kernel/trace/trace.c
index 4aab712f9567,36dbb58680fc..5aa5c01e2fed
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@@ -2003,6 -2003,7 +2003,6 @@@ static void tracing_reset_cpu(struct ar
void tracing_reset_online_cpus(struct array_buffer *buf)
{
struct trace_buffer *buffer = buf->buffer;
- int cpu;
if (!buffer)
return;
@@@ -2014,7 -2015,8 +2014,7 @@@
buf->time_start = buffer_ftrace_now(buf, buf->cpu);
- for_each_online_cpu(cpu)
- ring_buffer_reset_cpu(buffer, cpu);
+ ring_buffer_reset_online_cpus(buffer);
ring_buffer_record_enable(buffer);
}
@@@ -3344,16 -3346,12 +3344,16 @@@ int trace_array_printk(struct trace_arr
int ret;
va_list ap;
- if (!(global_trace.trace_flags & TRACE_ITER_PRINTK))
- return 0;
-
if (!tr)
return -ENOENT;
+ /* This is only allowed for created instances */
+ if (tr == &global_trace)
+ return 0;
+
+ if (!(tr->trace_flags & TRACE_ITER_PRINTK))
+ return 0;
+
va_start(ap, fmt);
ret = trace_array_vprintk(tr, ip, fmt, ap);
va_end(ap);
@@@ -4613,7 -4611,7 +4613,7 @@@ loff_t tracing_lseek(struct file *file
static const struct file_operations tracing_fops = {
.open = tracing_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_write_stub,
.llseek = tracing_lseek,
.release = tracing_release,
@@@ -4621,7 -4619,7 +4621,7 @@@
static const struct file_operations show_traces_fops = {
.open = show_traces_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = show_traces_release,
};
@@@ -4959,7 -4957,7 +4959,7 @@@ static int tracing_trace_options_open(s
static const struct file_operations tracing_iter_fops = {
.open = tracing_trace_options_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_trace_options_write,
@@@ -5299,7 -5297,7 +5299,7 @@@ static int tracing_saved_tgids_open(str
static const struct file_operations tracing_saved_tgids_fops = {
.open = tracing_saved_tgids_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5378,7 -5376,7 +5378,7 @@@ static int tracing_saved_cmdlines_open(
static const struct file_operations tracing_saved_cmdlines_fops = {
.open = tracing_saved_cmdlines_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5544,7 -5542,7 +5544,7 @@@ static int tracing_eval_map_open(struc
static const struct file_operations tracing_eval_map_fops = {
.open = tracing_eval_map_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = seq_release,
};
@@@ -5889,7 -5887,7 +5889,7 @@@ int tracing_set_tracer(struct trace_arr
}
/* If trace pipe files are being read, we can't change the tracer */
- if (tr->current_trace->ref) {
+ if (tr->trace_ref) {
ret = -EBUSY;
goto out;
}
@@@ -6105,7 -6103,7 +6105,7 @@@ static int tracing_open_pipe(struct ino
nonseekable_open(inode, filp);
- tr->current_trace->ref++;
+ tr->trace_ref++;
out:
mutex_unlock(&trace_types_lock);
return ret;
@@@ -6124,7 -6122,7 +6124,7 @@@ static int tracing_release_pipe(struct
mutex_lock(&trace_types_lock);
- tr->current_trace->ref--;
+ tr->trace_ref--;
if (iter->trace->pipe_close)
iter->trace->pipe_close(iter);
@@@ -7121,7 -7119,7 +7121,7 @@@ static const struct file_operations tra
static const struct file_operations trace_clock_fops = {
.open = tracing_clock_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
.write = tracing_clock_write,
@@@ -7129,7 -7127,7 +7129,7 @@@
static const struct file_operations trace_time_stamp_mode_fops = {
.open = tracing_time_stamp_mode_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_single_release_tr,
};
@@@ -7137,7 -7135,7 +7137,7 @@@
#ifdef CONFIG_TRACER_SNAPSHOT
static const struct file_operations snapshot_fops = {
.open = tracing_snapshot_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = tracing_snapshot_write,
.llseek = tracing_lseek,
.release = tracing_snapshot_release,
@@@ -7393,7 -7391,7 +7393,7 @@@ static int tracing_err_log_release(stru
static const struct file_operations tracing_err_log_fops = {
.open = tracing_err_log_open,
.write = tracing_err_log_write,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.llseek = seq_lseek,
.release = tracing_err_log_release,
};
@@@ -7426,7 -7424,7 +7426,7 @@@ static int tracing_buffers_open(struct
filp->private_data = info;
- tr->current_trace->ref++;
+ tr->trace_ref++;
mutex_unlock(&trace_types_lock);
@@@ -7527,7 -7525,7 +7527,7 @@@ static int tracing_buffers_release(stru
mutex_lock(&trace_types_lock);
- iter->tr->current_trace->ref--;
+ iter->tr->trace_ref--;
__trace_array_put(iter->tr);
@@@ -8735,7 -8733,7 +8735,7 @@@ static int __remove_instance(struct tra
int i;
/* Reference counter for a newly created trace array = 1. */
- if (tr->ref > 1 || (tr->current_trace && tr->current_trace->ref))
+ if (tr->ref > 1 || (tr->current_trace && tr->trace_ref))
return -EBUSY;
list_del(&tr->list);
diff --combined mm/shmem.c
index 66024b1884c1,f019ff500844..d08fa0f4eb9b
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@@ -1673,12 -1673,6 +1673,12 @@@ static int shmem_swapin_page(struct ino
}
wait_on_page_writeback(page);
+ /*
+ * Some architectures may have to restore extra metadata to the
+ * physical page after reading from swap.
+ */
+ arch_swap_restore(swap, page);
+
if (shmem_should_replace_page(page, gfp)) {
error = shmem_replace_page(&page, gfp, info, index);
if (error)
@@@ -2212,9 -2206,6 +2212,9 @@@ static int shmem_mmap(struct file *file
vma->vm_flags &= ~(VM_MAYWRITE);
}
+ /* arm64 - allow memory tagging on RAM-based files */
+ vma->vm_flags |= VM_MTE_ALLOWED;
+
file_accessed(file);
vma->vm_ops = &shmem_vm_ops;
if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE) &&
@@@ -3765,7 -3756,6 +3765,6 @@@ static const struct file_operations shm
.read_iter = shmem_file_read_iter,
.write_iter = generic_file_write_iter,
.fsync = noop_fsync,
- .splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.fallocate = shmem_fallocate,
#endif
diff --combined mm/swapfile.c
index 1d9fb474dada,2e50f52a14c7..7f1587b223ed
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@@ -716,7 -716,6 +716,7 @@@ static void swap_range_free(struct swap
else
swap_slot_free_notify = NULL;
while (offset <= end) {
+ arch_swap_invalidate_page(si->type, offset);
frontswap_invalidate_page(si->type, offset);
if (swap_slot_free_notify)
swap_slot_free_notify(si->bdev, offset);
@@@ -2676,7 -2675,6 +2676,7 @@@ SYSCALL_DEFINE1(swapoff, const char __u
frontswap_map = frontswap_map_get(p);
spin_unlock(&p->lock);
spin_unlock(&swap_lock);
+ arch_swap_invalidate_area(p->type);
frontswap_invalidate_area(p->type);
frontswap_map_set(p, NULL);
mutex_unlock(&swapon_mutex);
@@@ -2837,7 -2835,7 +2837,7 @@@ static int swaps_open(struct inode *ino
static const struct proc_ops swaps_proc_ops = {
.proc_flags = PROC_ENTRY_PERMANENT,
.proc_open = swaps_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_lseek = seq_lseek,
.proc_release = seq_release,
.proc_poll = swaps_poll,
@@@ -2931,7 -2929,7 +2931,7 @@@ static int claim_swapfile(struct swap_i
* write only restriction. Hence zoned block devices are not
* suitable for swapping. Disallow them here.
*/
- if (blk_queue_is_zoned(p->bdev->bd_queue))
+ if (blk_queue_is_zoned(p->bdev->bd_disk->queue))
return -EINVAL;
p->flags |= SWP_BLKDEV;
} else if (S_ISREG(inode->i_mode)) {
diff --combined net/bluetooth/6lowpan.c
index cff4944d5b66,573ef0c80521..7c492105b8c8
--- a/net/bluetooth/6lowpan.c
+++ b/net/bluetooth/6lowpan.c
@@@ -50,7 -50,6 +50,7 @@@ static bool enable_6lowpan
/* We are listening incoming connections via this channel
*/
static struct l2cap_chan *listen_chan;
+static DEFINE_MUTEX(set_lock);
struct lowpan_peer {
struct list_head list;
@@@ -1079,14 -1078,12 +1079,14 @@@ static void do_enable_set(struct work_s
enable_6lowpan = set_enable->flag;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
}
listen_chan = bt_6lowpan_listen();
+ mutex_unlock(&set_lock);
kfree(set_enable);
}
@@@ -1138,13 -1135,11 +1138,13 @@@ static ssize_t lowpan_control_write(str
if (ret == -EINVAL)
return ret;
+ mutex_lock(&set_lock);
if (listen_chan) {
l2cap_chan_close(listen_chan, 0);
l2cap_chan_put(listen_chan);
listen_chan = NULL;
}
+ mutex_unlock(&set_lock);
if (conn) {
struct lowpan_peer *peer;
@@@ -1210,7 -1205,7 +1210,7 @@@ static int lowpan_control_open(struct i
static const struct file_operations lowpan_control_fops = {
.open = lowpan_control_open,
- .read = seq_read,
+ .read_iter = seq_read_iter,
.write = lowpan_control_write,
.llseek = seq_lseek,
.release = single_release,
diff --combined net/ipv4/netfilter/ipt_CLUSTERIP.c
index a8b980ad11d4,67472389c9c3..40af4bbf4519
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@@ -3,7 -3,7 +3,7 @@@
* (C) 2003-2004 by Harald Welte <laforge(a)netfilter.org>
* based on ideas of Fabio Olive Leite <olive(a)unixforge.org>
*
- * Development of this code funded by SuSE Linux AG, http://www.suse.com/
+ * Development of this code funded by SuSE Linux AG, https://www.suse.com/
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
@@@ -806,7 -806,7 +806,7 @@@ static ssize_t clusterip_proc_write(str
static const struct proc_ops clusterip_proc_ops = {
.proc_open = clusterip_proc_open,
- .proc_read = seq_read,
+ .proc_read_iter = seq_read_iter,
.proc_write = clusterip_proc_write,
.proc_lseek = seq_lseek,
.proc_release = clusterip_proc_release,
--
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