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| author | Bob Liu <lliubbo@gmail.com> | 2012-12-12 01:00:37 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-12 02:22:22 +0100 |
| commit | 6219049ae1ce32b89236646cccaec2a5fc6c4fd2 (patch) | |
| tree | 551e8b1d53b8d237678c96cb9b442c746609cfcd /mm/internal.h | |
| parent | thp: clean up __collapse_huge_page_isolate (diff) | |
| download | linux-6219049ae1ce32b89236646cccaec2a5fc6c4fd2.tar.xz linux-6219049ae1ce32b89236646cccaec2a5fc6c4fd2.zip | |
mm: introduce mm_find_pmd()
Several place need to find the pmd by(mm_struct, address), so introduce a
function to simplify it.
[akpm@linux-foundation.org: fix warning]
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Ni zhan Chen <nizhan.chen@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/internal.h')
| -rw-r--r-- | mm/internal.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h index a4fa284f6bc2..52d1fa957194 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -92,6 +92,11 @@ extern int isolate_lru_page(struct page *page); extern void putback_lru_page(struct page *page); /* + * in mm/rmap.c: + */ +extern pmd_t *mm_find_pmd(struct mm_struct *mm, unsigned long address); + +/* * in mm/page_alloc.c */ extern void __free_pages_bootmem(struct page *page, unsigned int order); |