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| author | Michal Hocko <mhocko@suse.cz> | 2013-07-08 16:00:27 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-13 11:39:18 -0700 |
| commit | 3cfbfdc64a679a0f237a0e798e7cf034d26420d1 (patch) | |
| tree | a35b838ae4284ef5757ceb1617616318668ac2d7 /arch/arm/mm/ioremap.c | |
| parent | 65fd7aab590d38047cfafdfaac47282373bda37a (diff) | |
Revert "memcg: avoid dangling reference count in creation failure"
commit fa460c2d37870e0a6f94c70e8b76d05ca11b6db0 upstream.
This reverts commit e4715f01be697a.
mem_cgroup_put is hierarchy aware so mem_cgroup_put(memcg) already drops
an additional reference from all parents so the additional
mem_cgrroup_put(parent) potentially causes use-after-free.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Glauber Costa <glommer@openvz.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
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>
Diffstat (limited to 'arch/arm/mm/ioremap.c')
0 files changed, 0 insertions, 0 deletions