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cgroup: remove synchronize_rcu() from cgroup_diput()

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Free cgroup via call_rcu(). The actual work is done through
workqueue.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Li Zefan 2013-01-24 14:31:42 +08:00 • committed by Tejun Heo
parent 86a3db5643
commit be44562613
2 changed files with 44 additions and 29 deletions
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1
include/linux/cgroup.h
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@ -203,6 +203,7 @@ struct cgroup {
/* For RCU-protected deletion */
struct rcu_head rcu_head;
struct work_struct free_work;
/* List of events which userspace want to receive */
struct list_head event_list;