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authorZhang Zhen <zhenzhang.zhang@huawei.com>2015-06-25 02:56:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-25 03:49:41 +0300
commita67a31fa308a9032ead31b0501dafdb44ccf5a12 (patch)
treec56546d055a983dbb404d571012bbf99505ab696
parent83d3f0e90c6c8f833e3da91917c243a916fda69e (diff)
downloadlinux-a67a31fa308a9032ead31b0501dafdb44ccf5a12.tar.xz
mm/hugetlb: reduce arch dependent code about hugetlb_prefault_arch_hook
Currently we have many duplicates in definitions of hugetlb_prefault_arch_hook. In all architectures this function is empty. Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/arm/include/asm/hugetlb.h4
-rw-r--r--arch/arm64/include/asm/hugetlb.h4
-rw-r--r--arch/ia64/include/asm/hugetlb.h4
-rw-r--r--arch/metag/include/asm/hugetlb.h4
-rw-r--r--arch/mips/include/asm/hugetlb.h4
-rw-r--r--arch/powerpc/include/asm/hugetlb.h5
-rw-r--r--arch/s390/include/asm/hugetlb.h1
-rw-r--r--arch/sh/include/asm/hugetlb.h3
-rw-r--r--arch/sparc/include/asm/hugetlb.h4
-rw-r--r--arch/tile/include/asm/hugetlb.h4
-rw-r--r--arch/x86/include/asm/hugetlb.h3
-rw-r--r--fs/hugetlbfs/inode.c1
12 files changed, 0 insertions, 41 deletions
diff --git a/arch/arm/include/asm/hugetlb.h b/arch/arm/include/asm/hugetlb.h
index 1f1b1cd112f3..31bb7dccb971 100644
--- a/arch/arm/include/asm/hugetlb.h
+++ b/arch/arm/include/asm/hugetlb.h
@@ -53,10 +53,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline int huge_pte_none(pte_t pte)
{
return pte_none(pte);
diff --git a/arch/arm64/include/asm/hugetlb.h b/arch/arm64/include/asm/hugetlb.h
index 5b7ca8ace95f..734c17e89e94 100644
--- a/arch/arm64/include/asm/hugetlb.h
+++ b/arch/arm64/include/asm/hugetlb.h
@@ -86,10 +86,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline int huge_pte_none(pte_t pte)
{
return pte_none(pte);
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index aa910054b8e7..ff1377bc02a6 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -20,10 +20,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
REGION_NUMBER((addr)+(len)-1) == RGN_HPAGE);
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
diff --git a/arch/metag/include/asm/hugetlb.h b/arch/metag/include/asm/hugetlb.h
index 471f481e67f3..f730b396d79b 100644
--- a/arch/metag/include/asm/hugetlb.h
+++ b/arch/metag/include/asm/hugetlb.h
@@ -14,10 +14,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm,
int prepare_hugepage_range(struct file *file, unsigned long addr,
unsigned long len);
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index fe0d15d32660..4a5bb5453408 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -38,10 +38,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr,
unsigned long end,
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index 1d53a65b4ec1..4bbd3c8c2888 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -112,11 +112,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
-
static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index 11eae5f55b70..dfb542ade6b1 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -35,7 +35,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-#define hugetlb_prefault_arch_hook(mm) do { } while (0)
#define arch_clear_hugepage_flags(page) do { } while (0)
int arch_prepare_hugepage(struct page *page);
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index 699255d6d1c6..b788a9bc8918 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -26,9 +26,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
-}
-
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index e4cab465b81f..3130d7636312 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -11,10 +11,6 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep);
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline int is_hugepage_only_range(struct mm_struct *mm,
unsigned long addr,
unsigned long len) {
diff --git a/arch/tile/include/asm/hugetlb.h b/arch/tile/include/asm/hugetlb.h
index 3257733003f8..1abd00c55236 100644
--- a/arch/tile/include/asm/hugetlb.h
+++ b/arch/tile/include/asm/hugetlb.h
@@ -40,10 +40,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm)
-{
-}
-
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 68c05398bba9..dab7a3a750bf 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -26,9 +26,6 @@ static inline int prepare_hugepage_range(struct file *file,
return 0;
}
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
-}
-
static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
unsigned long addr, unsigned long end,
unsigned long floor,
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 87724c1d7be6..0cf74df68617 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -130,7 +130,6 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
goto out;
ret = 0;
- hugetlb_prefault_arch_hook(vma->vm_mm);
if (vma->vm_flags & VM_WRITE && inode->i_size < len)
inode->i_size = len;
out: