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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2013-04-17 22:58:27 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-25 19:51:09 (GMT) |
| commit | 17e4c92ba62fc45697bd214592248e41db65888b (patch) | |
| tree | 6a1c904624cf006767d6886c5ecd7608d7d42297 | |
| parent | 3f78a9f022c9bc045a6d2cc864a1d77ad3c3f784 (diff) | |
| download | linux-fsl-qoriq-17e4c92ba62fc45697bd214592248e41db65888b.tar.xz | |
hugetlbfs: stop setting VM_DONTDUMP in initializing vma(VM_HUGETLB)
commit a2fce9143057f4eb7675a21cca1b6beabe585c8b upstream.
Currently we fail to include any data on hugepages into coredump,
because VM_DONTDUMP is set on hugetlbfs's vma. This behavior was
recently introduced by commit 314e51b9851b ("mm: kill vma flag
VM_RESERVED and mm->reserved_vm counter").
This looks to me a serious regression, so let's fix it.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Reviewed-by: Rik van Riel <riel@redhat.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/hugetlbfs/inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 78bde32..ccee8cc 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -110,7 +110,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma) * way when do_mmap_pgoff unwinds (may be important on powerpc * and ia64). */ - vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND | VM_DONTDUMP; + vma->vm_flags |= VM_HUGETLB | VM_DONTEXPAND; vma->vm_ops = &hugetlb_vm_ops; if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT)) |