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hugetlb, rmap: use hugepage_add_new_anon_rmap() in hugetlb_cow()

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Obviously, setting anon_vma for COWed hugepage should be done
by hugepage_add_new_anon_rmap() to scan vmas faster.
This patch fixes it.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Naoya Horiguchi 2010-09-10 13:23:04 +09:00 committed by Linus Torvalds
parent 433abed6c6
commit cd67f0d2a9
1 changed files with 1 additions and 1 deletions
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2
mm/hugetlb.c
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@ -2404,7 +2404,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
set_huge_pte_at(mm, address, ptep,
make_huge_pte(vma, new_page, 1));
page_remove_rmap(old_page);
hugepage_add_anon_rmap(new_page, vma, address);
hugepage_add_new_anon_rmap(new_page, vma, address);
/* Make the old page be freed below */
new_page = old_page;
mmu_notifier_invalidate_range_end(mm,