tree 131b785dc7fb0102ee4fc4f56a1ae948b9861501
parent 5e549e989f94de0596b8149a90e0088e7d4d7c97
author Andrea Arcangeli <aarcange@redhat.com> 1281399548 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1281411898 -0700

rmap: always add new vmas at the end

Make sure to always add new VMAs at the end of the list.  This is
important so rmap_walk does not miss a VMA that was created during the
rmap_walk.

The old code got this right most of the time due to luck, but was buggy
when anon_vma_prepare reused a mergeable anon_vma.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>