From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Fri, 10 Sep 2010 04:23:04 +0000 (+0900)
Subject: hugetlb, rmap: use hugepage_add_new_anon_rmap() in hugetlb_cow()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cd67f0d2a9a6b5b9f79f4343dc8805757d9ebae2;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

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

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>
---

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index cc5be788a39..9519f3f6c1d 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2404,7 +2404,7 @@ retry_avoidcopy:
 		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,