rmap: always add new vmas at the end

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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>

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Andrea Arcangeli 2010-08-09 17:19:08 -07:00 • committed by Linus Torvalds

parent 5e549e989f

commit 26ba0cb63c

1 changed files with 1 additions and 1 deletions

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mm/rmap.c

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