diff options
author | Lai Jiangshan <laijs@cn.fujitsu.com> | 2009-01-07 18:07:36 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-08 08:31:02 -0800 |
commit | b12b533fa523e94e0cc9dc23274ae4f9439f1313 (patch) | |
tree | 00a08a34388e835ae3103a6f00c96129d3fa59a4 /net/irda/iriap_event.c | |
parent | c9d5409f8d46fd0d18b4a4481d9caa04076d87fc (diff) |
cgroups: add lock for child->cgroups in cgroup_post_fork()
When cgroup_post_fork() is called, child is seen by find_task_by_vpid(),
so child->cgroups maybe be changed, It'll incorrect.
child->cgroups<old>'s refcnt is decreased
child->cgroups<new>'s refcnt is increased
but child->cg_list is added to child->cgroups<old>'s list.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Reviewed-by: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'net/irda/iriap_event.c')
0 files changed, 0 insertions, 0 deletions