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mm/hugetlb: reduce arch dependent code about hugetlb_prefault_arch_hook

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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>
This commit is contained in:
Zhang Zhen 2015-06-24 16:56:25 -07:00 committed by Linus Torvalds
parent 83d3f0e90c
commit a67a31fa30
12 changed files with 0 additions and 41 deletions
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4
arch/arm/include/asm/hugetlb.h
View File

@ -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);

4
arch/arm64/include/asm/hugetlb.h
View File

@ -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);

4
arch/ia64/include/asm/hugetlb.h
View File

@ -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)
{

4
arch/metag/include/asm/hugetlb.h
View File

@ -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,

4
arch/mips/include/asm/hugetlb.h
View File

@ -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,

5
arch/powerpc/include/asm/hugetlb.h
View File

@ -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)
{

1
arch/s390/include/asm/hugetlb.h
View File

@ -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);

3
arch/sh/include/asm/hugetlb.h
View File

@ -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,

4
arch/sparc/include/asm/hugetlb.h
View File

@ -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) {

4
arch/tile/include/asm/hugetlb.h
View File

@ -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,

3
arch/x86/include/asm/hugetlb.h
View File

@ -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,

1
fs/hugetlbfs/inode.c
View File

@ -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: