diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2011-03-23 16:42:18 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-23 19:46:22 -0700 |
| commit | 6c191cd01a935e5b53ef43c9403c771bb7a32b60 (patch) | |
| tree | 70c49b4cb52406ea1d8c60f73ad7733f60f9cee9 /mm/migrate.c | |
| parent | 61f2e7b0f474225b4226772830ae4b29a3a21f8d (diff) | |
| download | lwn-6c191cd01a935e5b53ef43c9403c771bb7a32b60.tar.gz lwn-6c191cd01a935e5b53ef43c9403c771bb7a32b60.zip | |
memcg: res_counter_read_u64(): fix potential races on 32-bit machines
res_counter_read_u64 reads u64 value without lock. It's dangerous in a
32bit environment. Add locking.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/migrate.c')
0 files changed, 0 insertions, 0 deletions