diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2015-06-25 01:57:44 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-25 02:49:44 +0200 |
| commit | 8809aa2d28d74111ff2f1928edaa4e9845c97a7d (patch) | |
| tree | f99977c0135ee38e8d7f1cea575cb2b9b7f3b669 /include | |
| parent | powerpc/mm: use generic version of pmdp_clear_flush() (diff) | |
| download | linux-8809aa2d28d74111ff2f1928edaa4e9845c97a7d.tar.xz linux-8809aa2d28d74111ff2f1928edaa4e9845c97a7d.zip | |
mm: clarify that the function operates on hugepage pte
We have confusing functions to clear pmd, pmd_clear_* and pmd_clear. Add
_huge_ to pmdp_clear functions so that we are clear that they operate on
hugepage pte.
We don't bother about other functions like pmdp_set_wrprotect,
pmdp_clear_flush_young, because they operate on PTE bits and hence
indicate they are operating on hugepage ptes
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/pgtable.h | 18 | ||||
| -rw-r--r-- | include/linux/mmu_notifier.h | 12 |
2 files changed, 15 insertions, 15 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index f1108a72a672..29c57b2cb344 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -96,11 +96,11 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, } #endif -#ifndef __HAVE_ARCH_PMDP_GET_AND_CLEAR +#ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR #ifdef CONFIG_TRANSPARENT_HUGEPAGE -static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm, - unsigned long address, - pmd_t *pmdp) +static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, + unsigned long address, + pmd_t *pmdp) { pmd_t pmd = *pmdp; pmd_clear(pmdp); @@ -109,13 +109,13 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm, #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #endif -#ifndef __HAVE_ARCH_PMDP_GET_AND_CLEAR_FULL +#ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL #ifdef CONFIG_TRANSPARENT_HUGEPAGE -static inline pmd_t pmdp_get_and_clear_full(struct mm_struct *mm, +static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm, unsigned long address, pmd_t *pmdp, int full) { - return pmdp_get_and_clear(mm, address, pmdp); + return pmdp_huge_get_and_clear(mm, address, pmdp); } #endif /* CONFIG_TRANSPARENT_HUGEPAGE */ #endif @@ -152,8 +152,8 @@ extern pte_t ptep_clear_flush(struct vm_area_struct *vma, pte_t *ptep); #endif -#ifndef __HAVE_ARCH_PMDP_CLEAR_FLUSH -extern pmd_t pmdp_clear_flush(struct vm_area_struct *vma, +#ifndef __HAVE_ARCH_PMDP_HUGE_CLEAR_FLUSH +extern pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp); #endif diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 95243d28a0ee..61cd67f4d788 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -324,25 +324,25 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) ___pte; \ }) -#define pmdp_clear_flush_notify(__vma, __haddr, __pmd) \ +#define pmdp_huge_clear_flush_notify(__vma, __haddr, __pmd) \ ({ \ unsigned long ___haddr = __haddr & HPAGE_PMD_MASK; \ struct mm_struct *___mm = (__vma)->vm_mm; \ pmd_t ___pmd; \ \ - ___pmd = pmdp_clear_flush(__vma, __haddr, __pmd); \ + ___pmd = pmdp_huge_clear_flush(__vma, __haddr, __pmd); \ mmu_notifier_invalidate_range(___mm, ___haddr, \ ___haddr + HPAGE_PMD_SIZE); \ \ ___pmd; \ }) -#define pmdp_get_and_clear_notify(__mm, __haddr, __pmd) \ +#define pmdp_huge_get_and_clear_notify(__mm, __haddr, __pmd) \ ({ \ unsigned long ___haddr = __haddr & HPAGE_PMD_MASK; \ pmd_t ___pmd; \ \ - ___pmd = pmdp_get_and_clear(__mm, __haddr, __pmd); \ + ___pmd = pmdp_huge_get_and_clear(__mm, __haddr, __pmd); \ mmu_notifier_invalidate_range(__mm, ___haddr, \ ___haddr + HPAGE_PMD_SIZE); \ \ @@ -428,8 +428,8 @@ static inline void mmu_notifier_mm_destroy(struct mm_struct *mm) #define ptep_clear_flush_young_notify ptep_clear_flush_young #define pmdp_clear_flush_young_notify pmdp_clear_flush_young #define ptep_clear_flush_notify ptep_clear_flush -#define pmdp_clear_flush_notify pmdp_clear_flush -#define pmdp_get_and_clear_notify pmdp_get_and_clear +#define pmdp_huge_clear_flush_notify pmdp_huge_clear_flush +#define pmdp_huge_get_and_clear_notify pmdp_huge_get_and_clear #define set_pte_at_notify set_pte_at #endif /* CONFIG_MMU_NOTIFIER */ |