239 char *task_cgroup_path(struct task_struct *task, char *buf, size_t buflen);
255 #define cgroup_taskset_for_each(task, tset)				\  argument
256 	for ((task) = cgroup_taskset_first((tset)); (task);		\
257 	     (task) = cgroup_taskset_next((tset)))
279 #define task_css_set_check(task, __c)					\  argument
280 	rcu_dereference_check((task)->cgroups,				\
283 		((task)->flags & PF_EXITING) || (__c))
285 #define task_css_set_check(task, __c)					\  argument
286 	rcu_dereference((task)->cgroups)
298 #define task_css_check(task, subsys_id, __c)				\  argument
299 	task_css_set_check((task), (__c))->subsys[(subsys_id)]
307 static inline struct css_set *task_css_set(struct task_struct *task)  in task_css_set()  argument
309 	return task_css_set_check(task, false);  in task_css_set()
319 static inline struct cgroup_subsys_state *task_css(struct task_struct *task,  in task_css()  argument
322 	return task_css_check(task, subsys_id, false);  in task_css()
333 static inline bool task_css_is_root(struct task_struct *task, int subsys_id)  in task_css_is_root()  argument
335 	return task_css_check(task, subsys_id, true) ==  in task_css_is_root()
339 static inline struct cgroup *task_cgroup(struct task_struct *task,  in task_cgroup()  argument
342 	return task_css(task, subsys_id)->cgroup;  in task_cgroup()