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mm: introduce mm_find_pmd()

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Several place need to find the pmd by(mm_struct, address), so introduce a
function to simplify it.

[[email protected]: fix warning]
Signed-off-by: Bob Liu <[email protected]>
Cc: Andrea Arcangeli <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Minchan Kim <[email protected]>
Cc: Ni zhan Chen <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Bob Liu 2012-12-11 16:00:37 -08:00 • committed by Linus Torvalds
commit 6219049ae1
5 changed files with 44 additions and 92 deletions
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5
mm/internal.h
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@ -91,6 +91,11 @@ extern unsigned long highest_memmap_pfn;
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
*/