| commit | 3fb5a991916091a908d53608a5899240039fb51e | [log] [tgz] |
|---|---|---|
| author | Li Zefan <lizf@cn.fujitsu.com> | Thu Sep 02 15:42:43 2010 +0000 |
| committer | David S. Miller <davem@davemloft.net> | Fri Sep 03 09:55:24 2010 -0700 |
| tree | fa8e5855de904daffba92bd177fa57ee85641521 | |
| parent | 323f30b361b2e6febb9065ab4a1a5298acb66ac1 [diff] |
cls_cgroup: Fix rcu lockdep warning Dave reported an rcu lockdep warning on 2.6.35.4 kernel task->cgroups and task->cgroups->subsys[i] are protected by RCU. So we avoid accessing invalid pointers here. This might happen, for example, when you are deref-ing those pointers while someone move @task from one cgroup to another. Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>