diff options
| author | Andrea Arcangeli <aarcange@redhat.com> | 2010-08-02 20:41:05 +0200 |
|---|---|---|
| committer | Andrea Arcangeli <aarcange@redhat.com> | 2010-08-02 18:43:09 +0000 |
| commit | 98c0053d7d18cf63c2d1d512d27403277cad5665 (patch) | |
| tree | 7a83f0c08f4c621ffac38b2f3584607fd447d9b9 /mm/memory.c | |
| parent | 6016dac4d817ecfcd25fd52faa5310b20121802e (diff) | |
export maybe_mkwrite
huge_memory.c needs it too when it fallbacks in copying hugepages into regular
fragmented pages if hugepage allocation fails during COW.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/mm/memory.c b/mm/memory.c index 06f015f94e87..4e1d0a9034d6 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -2050,19 +2050,6 @@ static inline int pte_unmap_same(struct mm_struct *mm, pmd_t *pmd, return same; } -/* - * Do pte_mkwrite, but only if the vma says VM_WRITE. We do this when - * servicing faults for write access. In the normal case, do always want - * pte_mkwrite. But get_user_pages can cause write faults for mappings - * that do not have writing enabled, when used by access_process_vm. - */ -static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma) -{ - if (likely(vma->vm_flags & VM_WRITE)) - pte = pte_mkwrite(pte); - return pte; -} - static inline void cow_user_page(struct page *dst, struct page *src, unsigned long va, struct vm_area_struct *vma) { /* |