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>
(cherry picked from commit 5944d0116c773319a48ea6812d1891aa6d0bbbbf)
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 92a0ce4f8bc51cd2318b1fa328fa60b92b06c3de..f0a9e32c75b4b0b3b718ee6f55a9a2c1620a0ad1 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2547,8 +2547,7 @@ retry_avoidcopy:
         * 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;