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thp: clear_copy_huge_page

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Move the copy/clear_huge_page functions to common code to share between
hugetlb.c and huge_memory.c.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrea Arcangeli 2011-01-13 15:46:47 -08:00 • committed by Linus Torvalds
parent 3f04f62f90
commit 47ad8475c0
3 changed files with 83 additions and 67 deletions
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9
include/linux/mm.h
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@ -1589,5 +1589,14 @@ static inline int is_hwpoison_address(unsigned long addr)
extern void dump_page(struct page *page);
#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLBFS)
extern void clear_huge_page(struct page *page,
unsigned long addr,
unsigned int pages_per_huge_page);
extern void copy_user_huge_page(struct page *dst, struct page *src,
unsigned long addr, struct vm_area_struct *vma,
unsigned int pages_per_huge_page);
#endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
#endif /* __KERNEL__ */
#endif /* _LINUX_MM_H */