The following commit has been merged in the master branch:
commit 87adb409ad2fb4737c02f004bb4cba5b4af72d04
Author: Ken Helias <kenhelias(a)firemail.de>
Date: Thu Jul 3 08:43:39 2014 +1000
list: fix order of arguments for hlist_add_after(_rcu)
All other add functions for lists have the new item as first argument and
the position where it is added as second argument. This was changed for
no good reason in this function and makes using it unnecessary confusing.
The name was changed to hlist_add_behind() to cause unconverted code to
generate a compile error instead of using the wrong parameter order.
Signed-off-by: Ken Helias <kenhelias(a)firemail.de>
Cc: "Paul E. McKenney" <paulmck(a)linux.vnet.ibm.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher(a)intel.com> [intel driver bits]
Cc: Hugh Dickins <hughd(a)google.com>
Cc: Christoph Hellwig <hch(a)infradead.org>
Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org>
diff --git a/Documentation/RCU/whatisRCU.txt b/Documentation/RCU/whatisRCU.txt
index 49b8551..e48c57f 100644
--- a/Documentation/RCU/whatisRCU.txt
+++ b/Documentation/RCU/whatisRCU.txt
@@ -818,7 +818,7 @@ RCU pointer/list update:
list_add_tail_rcu
list_del_rcu
list_replace_rcu
- hlist_add_after_rcu
+ hlist_add_behind_rcu
hlist_add_before_rcu
hlist_add_head_rcu
hlist_del_rcu
diff --git a/drivers/gpu/drm/drm_hashtab.c b/drivers/gpu/drm/drm_hashtab.c
index 7e4bae7..c3b80fd 100644
--- a/drivers/gpu/drm/drm_hashtab.c
+++ b/drivers/gpu/drm/drm_hashtab.c
@@ -125,7 +125,7 @@ int drm_ht_insert_item(struct drm_open_hash *ht, struct drm_hash_item *item)
parent = &entry->head;
}
if (parent) {
- hlist_add_after_rcu(parent, &item->head);
+ hlist_add_behind_rcu(&item->head, parent);
} else {
hlist_add_head_rcu(&item->head, h_list);
}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 4a488ff..c57b085 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1498,7 +1498,7 @@ static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
/* add filter to the list */
if (parent)
- hlist_add_after(&parent->fdir_node, &input->fdir_node);
+ hlist_add_behind(&input->fdir_node, &parent->fdir_node);
else
hlist_add_head(&input->fdir_node,
&pf->fdir_filter_list);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index a452730..a6e5bcc 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -2518,7 +2518,7 @@ static int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter,
/* add filter to the list */
if (parent)
- hlist_add_after(&parent->fdir_node, &input->fdir_node);
+ hlist_add_behind(&input->fdir_node, &parent->fdir_node);
else
hlist_add_head(&input->fdir_node,
&adapter->fdir_filter_list);
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index 6d2b455..6db7391 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -351,7 +351,7 @@ cfs_hash_dh_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
cfs_hash_dhead_t, dh_head);
if (dh->dh_tail != NULL) /* not empty */
- hlist_add_after(dh->dh_tail, hnode);
+ hlist_add_behind(hnode, dh->dh_tail);
else /* empty list */
hlist_add_head(hnode, &dh->dh_head);
dh->dh_tail = hnode;
@@ -406,7 +406,7 @@ cfs_hash_dd_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
cfs_hash_dhead_dep_t, dd_head);
if (dh->dd_tail != NULL) /* not empty */
- hlist_add_after(dh->dd_tail, hnode);
+ hlist_add_behind(hnode, dh->dd_tail);
else /* empty list */
hlist_add_head(hnode, &dh->dd_head);
dh->dd_tail = hnode;
diff --git a/fs/namespace.c b/fs/namespace.c
index 182bc41..2a1447c 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -798,7 +798,7 @@ static void commit_tree(struct mount *mnt, struct mount *shadows)
list_splice(&head, n->list.prev);
if (shadows)
- hlist_add_after_rcu(&shadows->mnt_hash, &mnt->mnt_hash);
+ hlist_add_behind_rcu(&mnt->mnt_hash, &shadows->mnt_hash);
else
hlist_add_head_rcu(&mnt->mnt_hash,
m_hash(&parent->mnt, mnt->mnt_mountpoint));
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 74825be..9ce0622 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -232,7 +232,7 @@ int fsnotify_add_inode_mark(struct fsnotify_mark *mark,
BUG_ON(last == NULL);
/* mark should be the last entry. last is the current last entry */
- hlist_add_after_rcu(&last->i.i_list, &mark->i.i_list);
+ hlist_add_behind_rcu(&mark->i.i_list, &last->i.i_list);
out:
fsnotify_recalc_inode_mask_locked(inode);
spin_unlock(&inode->i_lock);
diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index 68ca5a8..ac851e8 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -191,7 +191,7 @@ int fsnotify_add_vfsmount_mark(struct fsnotify_mark *mark,
BUG_ON(last == NULL);
/* mark should be the last entry. last is the current last entry */
- hlist_add_after_rcu(&last->m.m_list, &mark->m.m_list);
+ hlist_add_behind_rcu(&mark->m.m_list, &last->m.m_list);
out:
fsnotify_recalc_vfsmount_mask_locked(mnt);
spin_unlock(&mnt->mnt_root->d_lock);
diff --git a/include/linux/list.h b/include/linux/list.h
index 624ec7f..cbbb96f 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -654,8 +654,8 @@ static inline void hlist_add_before(struct hlist_node *n,
*(n->pprev) = n;
}
-static inline void hlist_add_after(struct hlist_node *prev,
- struct hlist_node *n)
+static inline void hlist_add_behind(struct hlist_node *n,
+ struct hlist_node *prev)
{
n->next = prev->next;
prev->next = n;
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 8183b46..81c004d 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -432,9 +432,9 @@ static inline void hlist_add_before_rcu(struct hlist_node *n,
}
/**
- * hlist_add_after_rcu
- * @prev: the existing element to add the new element after.
+ * hlist_add_behind_rcu
* @n: the new element to add to the hash list.
+ * @prev: the existing element to add the new element after.
*
* Description:
* Adds the specified element to the specified hlist
@@ -449,8 +449,8 @@ static inline void hlist_add_before_rcu(struct hlist_node *n,
* hlist_for_each_entry_rcu(), used to prevent memory-consistency
* problems on Alpha CPUs.
*/
-static inline void hlist_add_after_rcu(struct hlist_node *prev,
- struct hlist_node *n)
+static inline void hlist_add_behind_rcu(struct hlist_node *n,
+ struct hlist_node *prev)
{
n->next = prev->next;
n->pprev = &prev->next;
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index f14e54a..16dd409 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -184,7 +184,7 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
/* Reached the end of the list, so insert after 'frag_entry_curr'. */
if (likely(frag_entry_curr)) {
- hlist_add_after(&frag_entry_curr->list, &frag_entry_new->list);
+ hlist_add_behind(&frag_entry_new->list, &frag_entry_curr->list);
chain->size += skb->len - hdr_size;
chain->timestamp = jiffies;
ret = true;
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index abfa0b65..d9c4f57 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1174,7 +1174,7 @@ static void br_multicast_add_router(struct net_bridge *br,
}
if (slot)
- hlist_add_after_rcu(slot, &port->rlist);
+ hlist_add_behind_rcu(&port->rlist, slot);
else
hlist_add_head_rcu(&port->rlist, &br->router_list);
}
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 5afeb5a..e9cb258 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -940,7 +940,7 @@ static void insert_leaf_info(struct hlist_head *head, struct leaf_info *new)
last = li;
}
if (last)
- hlist_add_after_rcu(&last->hlist, &new->hlist);
+ hlist_add_behind_rcu(&new->hlist, &last->hlist);
else
hlist_add_before_rcu(&new->hlist, &li->hlist);
}
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index 731e1e1..fd0dc47 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -277,7 +277,7 @@ static int __ip6addrlbl_add(struct ip6addrlbl_entry *newp, int replace)
last = p;
}
if (last)
- hlist_add_after_rcu(&last->list, &newp->list);
+ hlist_add_behind_rcu(&newp->list, &last->list);
else
hlist_add_head_rcu(&newp->list, &ip6addrlbl_table.head);
out:
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index a8ef510..92cb08d 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -389,7 +389,7 @@ redo:
if (h != h0)
continue;
hlist_del(&pol->bydst);
- hlist_add_after(entry0, &pol->bydst);
+ hlist_add_behind(&pol->bydst, entry0);
}
entry0 = &pol->bydst;
}
@@ -654,7 +654,7 @@ int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl)
break;
}
if (newpos)
- hlist_add_after(newpos, &policy->bydst);
+ hlist_add_behind(&policy->bydst, newpos);
else
hlist_add_head(&policy->bydst, chain);
xfrm_pol_hold(policy);
--
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