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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-10-25 12:38:20 +0200 |
|---|---|---|
| committer | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2015-10-25 12:38:20 +0200 |
| commit | 10d15322ed26652263a579bcb59dfd49ab8a30de (patch) | |
| tree | b1497de1b8ffd34b991cdf6e21de1c7a0a65f1de /mm/hugetlb.c | |
| parent | 0316d30ea3e66379cd30ed70a114bc282159bb4c (diff) | |
| parent | e5a9f8d04660da7ef3a98260aa74c3976f9cb4cd (diff) | |
| download | linux-10d15322ed26652263a579bcb59dfd49ab8a30de.tar.gz linux-10d15322ed26652263a579bcb59dfd49ab8a30de.tar.xz | |
Merge remote-tracking branch 'mac80211-next/master' into next
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 999fb0aef8f1..9cc773483624 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3202,6 +3202,14 @@ static void unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma, continue; /* + * Shared VMAs have their own reserves and do not affect + * MAP_PRIVATE accounting but it is possible that a shared + * VMA is using the same page so check and skip such VMAs. + */ + if (iter_vma->vm_flags & VM_MAYSHARE) + continue; + + /* * Unmap the page from other VMAs without their own reserves. * They get marked to be SIGKILLed if they fault in these * areas. This is because a future no-page fault on this VMA |