The following commit has been merged in the linux branch: commit ffb4a73d8906f71910e6c83ec2b499e70025ee8e Author: Paul Mundt lethal@linux-sh.org Date: Tue Oct 27 07:22:37 2009 +0900

sh: Fix hugetlbfs dependencies for SH-3 && MMU configurations.

The hugetlb dependencies presently depend on SUPERH && MMU while the hugetlb page size definitions depend on CPU_SH4 or CPU_SH5. This unfortunately allows SH-3 + MMU configurations to enable hugetlbfs without a corresponding HPAGE_SHIFT definition, resulting in the build blowing up.

As SH-3 doesn't support variable page sizes, we tighten up the dependenies a bit to prevent hugetlbfs from being enabled. These days we also have a shiny new SYS_SUPPORTS_HUGETLBFS, so switch to using that rather than adding to the list of corner cases in fs/Kconfig.

Reported-by: Kristoffer Ericson kristoffer.ericson@gmail.com Signed-off-by: Paul Mundt lethal@linux-sh.org

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 0dc7e3c..88cdeb9 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -121,6 +121,9 @@ config SYS_SUPPORTS_APM_EMULATION bool select ARCH_SUSPEND_POSSIBLE

+config SYS_SUPPORTS_HUGETLBFS + bool + config SYS_SUPPORTS_SMP bool

@@ -195,6 +198,7 @@ config CPU_SH4 select CPU_HAS_SR_RB select CPU_HAS_FPU if !CPU_SH4AL_DSP select SYS_SUPPORTS_TMU + select SYS_SUPPORTS_HUGETLBFS if MMU

config CPU_SH4A bool @@ -209,6 +213,7 @@ config CPU_SH5 bool select CPU_HAS_FPU select SYS_SUPPORTS_TMU + select SYS_SUPPORTS_HUGETLBFS if MMU

config CPU_SHX2 bool diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig index 64dc1ad..7f7b52f 100644 --- a/arch/sh/mm/Kconfig +++ b/arch/sh/mm/Kconfig @@ -227,7 +227,7 @@ endchoice

choice prompt "HugeTLB page size" - depends on HUGETLB_PAGE && (CPU_SH4 || CPU_SH5) && MMU + depends on HUGETLB_PAGE default HUGETLB_PAGE_SIZE_1MB if PAGE_SIZE_64KB default HUGETLB_PAGE_SIZE_64K

diff --git a/fs/Kconfig b/fs/Kconfig index d4bf8ca..48b81f9 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -135,8 +135,8 @@ config TMPFS_POSIX_ACL

config HUGETLBFS bool "HugeTLB file system support" - depends on X86 || IA64 || PPC64 || SPARC64 || (SUPERH && MMU) || \ - (S390 && 64BIT) || SYS_SUPPORTS_HUGETLBFS || BROKEN + depends on X86 || IA64 || PPC64 || SPARC64 || (S390 && 64BIT) || \ + SYS_SUPPORTS_HUGETLBFS || BROKEN help hugetlbfs is a filesystem backing for HugeTLB pages, based on ramfs. For architectures that support it, say Y here and read