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 <tj@xxxxxxxxxx> --- kernel/cgroup.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- 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); _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
