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(parent: 084457f) | patch
cgroup: fix umount vs cgroup_event_remove() race
authorLi Zefan <lizefan@huawei.com>
Tue, 18 Jun 2013 10:41:10 +0000 (18:41 +0800)
committerTejun Heo <tj@kernel.org>
Tue, 18 Jun 2013 16:04:30 +0000 (09:04 -0700)
commit1c8158eeae0f37d0eee9f1fbe68080df6a408df2
tree9cf764df3ac232b0816d886c6d0ce85cd7967f62tree | snapshot
parent084457f284abf6789d90509ee11dae383842b23bcommit | diff
cgroup: fix umount vs cgroup_event_remove() race

 commit 5db9a4d99b0157a513944e9a44d29c9cec2e91dc
 Author: Tejun Heo <tj@kernel.org>
 Date:   Sat Jul 7 16:08:18 2012 -0700

     cgroup: fix cgroup hierarchy umount race

This commit fixed a race caused by the dput() in css_dput_fn(), but
the dput() in cgroup_event_remove() can also lead to the same BUG().

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
kernel/cgroup.c diff | blob | history
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