diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-12 10:54:35 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-12 10:54:35 -0700 |
| commit | 378102f364d3fba88b8162df13d639d620e9272c (patch) | |
| tree | 4d08ab65dc1e99d47c1b53fb7d7640711ea46cf6 /mm/hugetlb.c | |
| parent | 1a76eb5b04062cf2a32d5c7f0aefc9d92c3f986a (diff) | |
| parent | 25cb62b76430a91cc6195f902e61c2cb84ade622 (diff) | |
Merge 4.3-rc5 into tty-next
We want the tty fixes and reverts in here as well so that people can
properly test and use it.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 |