From 82fe9b0da0d50e2795a49c268676fd132cbc3eea Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 25 Jun 2013 11:53:37 -0700 Subject: cgroup: move init_css_set initialization inside cgroup_mutex cgroup_init() was doing init_css_set initialization outside cgroup_mutex, which is fine but we want to add lockdep annotation on subsystem iterations and cgroup_init() will trigger it spuriously. Move init_css_set initialization inside cgroup_mutex. Signed-off-by: Tejun Heo Acked-by: Li Zefan --- kernel/cgroup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'kernel') diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 605cb13a1574..3409698bd9fd 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4888,14 +4888,14 @@ int __init cgroup_init(void) cgroup_init_idr(ss, init_css_set.subsys[ss->subsys_id]); } - /* Add init_css_set to the hash table */ - key = css_set_hash(init_css_set.subsys); - hash_add(css_set_table, &init_css_set.hlist, key); - /* allocate id for the dummy hierarchy */ mutex_lock(&cgroup_mutex); mutex_lock(&cgroup_root_mutex); + /* Add init_css_set to the hash table */ + key = css_set_hash(init_css_set.subsys); + hash_add(css_set_table, &init_css_set.hlist, key); + BUG_ON(cgroup_init_root_id(&cgroup_dummy_root)); mutex_unlock(&cgroup_root_mutex); -- cgit v1.2.3