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| author | Zhang Zhen <zhenzhang.zhang@huawei.com> | 2015-06-25 01:56:13 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 02:49:41 +0200 |
| commit | e81f2d22370f8231cb7f13f454bcc8c0eb4e23f2 (patch) | |
| tree | 758140f614ebc396e160f858fc37ebddc7475f32 /arch/arm | |
| parent | mm: fix mprotect() behaviour on VM_LOCKED VMAs (diff) | |
| download | linux-e81f2d22370f8231cb7f13f454bcc8c0eb4e23f2.tar.xz linux-e81f2d22370f8231cb7f13f454bcc8c0eb4e23f2.zip | |
mm/hugetlb: reduce arch dependent code about huge_pmd_unshare
Currently we have many duplicates in definitions of huge_pmd_unshare. In
all architectures this function just returns 0 when
CONFIG_ARCH_WANT_HUGE_PMD_SHARE is N.
This patch puts the default implementation in mm/hugetlb.c and lets these
architectures use the common code.
Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: David Rientjes <rientjes@google.com>
Cc: James Yang <James.Yang@freescale.com>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/hugetlbpage.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/arm/mm/hugetlbpage.c b/arch/arm/mm/hugetlbpage.c index c72412415093..fcafb521f14e 100644 --- a/arch/arm/mm/hugetlbpage.c +++ b/arch/arm/mm/hugetlbpage.c @@ -41,11 +41,6 @@ int pud_huge(pud_t pud) return 0; } -int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) -{ - return 0; -} - int pmd_huge(pmd_t pmd) { return pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT); |