2006 	ret = percpu_ref_init(&root_cgrp->self.refcnt, css_release,  in cgroup_setup_root()
2085 	percpu_ref_exit(&root_cgrp->self.refcnt);  in cgroup_setup_root()
2224 	    !percpu_ref_is_dying(&root->cgrp.self.refcnt))  in cgroup_kill_sb()
2225 		percpu_ref_kill(&root->cgrp.self.refcnt);  in cgroup_kill_sb()
3000 			if (!css || !percpu_ref_is_dying(&css->refcnt))  in cgroup_lock_and_drain_offline()
3114 			WARN_ON_ONCE(css && percpu_ref_is_dying(&css->refcnt));  in cgroup_apply_control_enable()
3160 			WARN_ON_ONCE(css && percpu_ref_is_dying(&css->refcnt));  in cgroup_apply_control_disable()
4960 	percpu_ref_exit(&css->refcnt);  in css_free_rwork_fn()
5064 		container_of(ref, struct cgroup_subsys_state, refcnt);  in css_release()
5165 	err = percpu_ref_init(&css->refcnt, css_release, 0, GFP_KERNEL);  in css_create()
5220 	ret = percpu_ref_init(&cgrp->self.refcnt, css_release, 0, GFP_KERNEL);  in cgroup_create()
5326 	percpu_ref_exit(&cgrp->self.refcnt);  in cgroup_create()
5447 		container_of(ref, struct cgroup_subsys_state, refcnt);  in css_killed_ref_fn()
5495 	percpu_ref_kill_and_confirm(&css->refcnt, css_killed_ref_fn);  in kill_css()
5589 	percpu_ref_kill(&cgrp->self.refcnt);  in cgroup_destroy_locked()