77 bool css_has_online_children(struct cgroup_subsys_state *css);
118 						    struct cgroup_subsys_state *css);
121 						     struct cgroup_subsys_state *css);
128 void css_task_iter_start(struct cgroup_subsys_state *css,
211 #define css_for_each_descendant_pre(pos, css)				\  argument
212 	for ((pos) = css_next_descendant_pre(NULL, (css)); (pos);	\
213 	     (pos) = css_next_descendant_pre((pos), (css)))
234 #define css_for_each_descendant_post(pos, css)				\  argument
235 	for ((pos) = css_next_descendant_post(NULL, (css)); (pos);	\
236 	     (pos) = css_next_descendant_post((pos), (css)))
288 static inline void css_get(struct cgroup_subsys_state *css)  in css_get()  argument
290 	if (!(css->flags & CSS_NO_REF))  in css_get()
291 		percpu_ref_get(&css->refcnt);  in css_get()
301 static inline void css_get_many(struct cgroup_subsys_state *css, unsigned int n)  in css_get_many()  argument
303 	if (!(css->flags & CSS_NO_REF))  in css_get_many()
304 		percpu_ref_get_many(&css->refcnt, n);  in css_get_many()
318 static inline bool css_tryget(struct cgroup_subsys_state *css)  in css_tryget()  argument
320 	if (!(css->flags & CSS_NO_REF))  in css_tryget()
321 		return percpu_ref_tryget(&css->refcnt);  in css_tryget()
335 static inline bool css_tryget_online(struct cgroup_subsys_state *css)  in css_tryget_online()  argument
337 	if (!(css->flags & CSS_NO_REF))  in css_tryget_online()
338 		return percpu_ref_tryget_live(&css->refcnt);  in css_tryget_online()
348 static inline void css_put(struct cgroup_subsys_state *css)  in css_put()  argument
350 	if (!(css->flags & CSS_NO_REF))  in css_put()
351 		percpu_ref_put(&css->refcnt);  in css_put()
361 static inline void css_put_many(struct cgroup_subsys_state *css, unsigned int n)  in css_put_many()  argument
363 	if (!(css->flags & CSS_NO_REF))  in css_put_many()
364 		percpu_ref_put_many(&css->refcnt, n);  in css_put_many()
441 	struct cgroup_subsys_state *css;  in task_get_css()  local
445 		css = task_css(task, subsys_id);  in task_get_css()
446 		if (likely(css_tryget_online(css)))  in task_get_css()
451 	return css;  in task_get_css()
535 static inline void css_put(struct cgroup_subsys_state *css) {}  in css_put()  argument