103 bool css_has_online_children(struct cgroup_subsys_state *css);
151 						    struct cgroup_subsys_state *css);
154 						     struct cgroup_subsys_state *css);
161 void css_task_iter_start(struct cgroup_subsys_state *css, unsigned int flags,
244 #define css_for_each_descendant_pre(pos, css)				\  argument
245 	for ((pos) = css_next_descendant_pre(NULL, (css)); (pos);	\
246 	     (pos) = css_next_descendant_pre((pos), (css)))
267 #define css_for_each_descendant_post(pos, css)				\  argument
268 	for ((pos) = css_next_descendant_post(NULL, (css)); (pos);	\
269 	     (pos) = css_next_descendant_post((pos), (css)))
326 static inline void css_get(struct cgroup_subsys_state *css)  in css_get()  argument
328 	if (!(css->flags & CSS_NO_REF))  in css_get()
329 		percpu_ref_get(&css->refcnt);  in css_get()
339 static inline void css_get_many(struct cgroup_subsys_state *css, unsigned int n)  in css_get_many()  argument
341 	if (!(css->flags & CSS_NO_REF))  in css_get_many()
342 		percpu_ref_get_many(&css->refcnt, n);  in css_get_many()
356 static inline bool css_tryget(struct cgroup_subsys_state *css)  in css_tryget()  argument
358 	if (!(css->flags & CSS_NO_REF))  in css_tryget()
359 		return percpu_ref_tryget(&css->refcnt);  in css_tryget()
373 static inline bool css_tryget_online(struct cgroup_subsys_state *css)  in css_tryget_online()  argument
375 	if (!(css->flags & CSS_NO_REF))  in css_tryget_online()
376 		return percpu_ref_tryget_live(&css->refcnt);  in css_tryget_online()
395 static inline bool css_is_dying(struct cgroup_subsys_state *css)  in css_is_dying()  argument
397 	return !(css->flags & CSS_NO_REF) && percpu_ref_is_dying(&css->refcnt);  in css_is_dying()
406 static inline void css_put(struct cgroup_subsys_state *css)  in css_put()  argument
408 	if (!(css->flags & CSS_NO_REF))  in css_put()
409 		percpu_ref_put(&css->refcnt);  in css_put()
419 static inline void css_put_many(struct cgroup_subsys_state *css, unsigned int n)  in css_put_many()  argument
421 	if (!(css->flags & CSS_NO_REF))  in css_put_many()
422 		percpu_ref_put_many(&css->refcnt, n);  in css_put_many()
514 	struct cgroup_subsys_state *css;  in task_get_css()  local
518 		css = task_css(task, subsys_id);  in task_get_css()
525 		if (likely(css_tryget(css)))  in task_get_css()
530 	return css;  in task_get_css()
712 static inline void css_get(struct cgroup_subsys_state *css) {}  in css_get()  argument
713 static inline void css_put(struct cgroup_subsys_state *css) {}  in css_put()  argument