94 bool css_has_online_children(struct cgroup_subsys_state *css);
134 						    struct cgroup_subsys_state *css);
137 						     struct cgroup_subsys_state *css);
144 void css_task_iter_start(struct cgroup_subsys_state *css, unsigned int flags,
227 #define css_for_each_descendant_pre(pos, css)				\  argument
228 	for ((pos) = css_next_descendant_pre(NULL, (css)); (pos);	\
229 	     (pos) = css_next_descendant_pre((pos), (css)))
250 #define css_for_each_descendant_post(pos, css)				\  argument
251 	for ((pos) = css_next_descendant_post(NULL, (css)); (pos);	\
252 	     (pos) = css_next_descendant_post((pos), (css)))
304 static inline void css_get(struct cgroup_subsys_state *css)  in css_get()  argument
306 	if (!(css->flags & CSS_NO_REF))  in css_get()
307 		percpu_ref_get(&css->refcnt);  in css_get()
317 static inline void css_get_many(struct cgroup_subsys_state *css, unsigned int n)  in css_get_many()  argument
319 	if (!(css->flags & CSS_NO_REF))  in css_get_many()
320 		percpu_ref_get_many(&css->refcnt, n);  in css_get_many()
334 static inline bool css_tryget(struct cgroup_subsys_state *css)  in css_tryget()  argument
336 	if (!(css->flags & CSS_NO_REF))  in css_tryget()
337 		return percpu_ref_tryget(&css->refcnt);  in css_tryget()
351 static inline bool css_tryget_online(struct cgroup_subsys_state *css)  in css_tryget_online()  argument
353 	if (!(css->flags & CSS_NO_REF))  in css_tryget_online()
354 		return percpu_ref_tryget_live(&css->refcnt);  in css_tryget_online()
373 static inline bool css_is_dying(struct cgroup_subsys_state *css)  in css_is_dying()  argument
375 	return !(css->flags & CSS_NO_REF) && percpu_ref_is_dying(&css->refcnt);  in css_is_dying()
384 static inline void css_put(struct cgroup_subsys_state *css)  in css_put()  argument
386 	if (!(css->flags & CSS_NO_REF))  in css_put()
387 		percpu_ref_put(&css->refcnt);  in css_put()
397 static inline void css_put_many(struct cgroup_subsys_state *css, unsigned int n)  in css_put_many()  argument
399 	if (!(css->flags & CSS_NO_REF))  in css_put_many()
400 		percpu_ref_put_many(&css->refcnt, n);  in css_put_many()
492 	struct cgroup_subsys_state *css;  in task_get_css()  local
496 		css = task_css(task, subsys_id);  in task_get_css()
497 		if (likely(css_tryget_online(css)))  in task_get_css()
502 	return css;  in task_get_css()
691 static inline void css_put(struct cgroup_subsys_state *css) {}  in css_put()  argument