cgroup_init_cftypes 4089 kernel/cgroup/cgroup.c ret = cgroup_init_cftypes(ss, cfts); cgroup_init_cftypes 5736 kernel/cgroup/cgroup.c BUG_ON(cgroup_init_cftypes(NULL, cgroup_base_files)); cgroup_init_cftypes 5737 kernel/cgroup/cgroup.c BUG_ON(cgroup_init_cftypes(NULL, cgroup1_base_files));