From 5944d0116c773319a48ea6812d1891aa6d0bbbbf Mon Sep 17 00:00:00 2001 From: Joonsoo Kim <iamjoonsoo.kim@lge.com> Date: Wed, 11 Sep 2013 14:21:55 -0700 Subject: [PATCH] mm, hugetlb: remove useless check about mapping type is_vma_resv_set(vma, HPAGE_RESV_OWNER) implys that this mapping is for private. So we don't need to check whether this mapping is for shared or not. This patch is just for clean-up. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com> Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> Reviewed-by: Davidlohr Bueso <davidlohr@hp.com> Cc: David Gibson <david@gibson.dropbear.id.au> Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com> Cc: Hillf Danton <dhillf@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> --- mm/hugetlb.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index dec5772c8c5c..f6347ec4fd0a 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -2564,8 +2564,7 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, * at the time of fork() could consume its reserves on COW instead * of the full address range. */ - if (!(vma->vm_flags & VM_MAYSHARE) && - is_vma_resv_set(vma, HPAGE_RESV_OWNER) && + if (is_vma_resv_set(vma, HPAGE_RESV_OWNER) && old_page != pagecache_page) outside_reserve = 1; -- GitLab