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mm, hugetlb: remove useless check about mapping type

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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>
This commit is contained in:
Joonsoo Kim 2013-09-11 14:21:55 -07:00 committed by Linus Torvalds
parent 8bb3f12e7d
commit 5944d0116c
1 changed files with 1 additions and 2 deletions
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3
mm/hugetlb.c
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@ -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;