diff options
| author | Kirill Tkhai <[email protected]> | 2017-10-03 16:14:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2017-10-03 17:54:23 -0700 |
| commit | 4b22927f0cbd58303aac689e378d20bf56267a39 (patch) | |
| tree | c62d33d5689dda2c2f0bcb259f13e0c99dd89ada /tools/perf/scripts/python/check-perf-trace.py | |
| parent | fa87b91c94a8fd2c8502b6761be2d08a8e9bcf55 (diff) | |
ksm: fix unlocked iteration over vmas in cmp_and_merge_page()
In this place mm is unlocked, so vmas or list may change. Down read
mmap_sem to protect them from modifications.
Link: http://lkml.kernel.org/r/150512788393.10691.8868381099691121308.stgit@localhost.localdomain
Fixes: e86c59b1b12d ("mm/ksm: improve deduplication of zero pages with colouring")
Signed-off-by: Kirill Tkhai <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Reviewed-by: Andrea Arcangeli <[email protected]>
Cc: Minchan Kim <[email protected]>
Cc: zhong jiang <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Claudio Imbrenda <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions