37 		struct cgroup *cgroup)  in cgroup_freezer()  argument
40 		cgroup_subsys_state(cgroup, freezer_subsys_id),  in cgroup_freezer()
129 						  struct cgroup *cgroup)  in freezer_create()  argument
143 			    struct cgroup *cgroup)  in freezer_destroy()  argument
145 	kfree(cgroup_freezer(cgroup));  in freezer_destroy()
161 			      struct cgroup *new_cgroup,  in freezer_can_attach()
207 	if (!freezer->css.cgroup->parent)  in freezer_fork()
222 static void update_freezer_state(struct cgroup *cgroup,  in update_freezer_state()  argument
229 	cgroup_iter_start(cgroup, &it);  in update_freezer_state()
230 	while ((task = cgroup_iter_next(cgroup, &it))) {  in update_freezer_state()
247 	cgroup_iter_end(cgroup, &it);  in update_freezer_state()
250 static int freezer_read(struct cgroup *cgroup, struct cftype *cft,  in freezer_read()  argument
256 	if (!cgroup_lock_live_group(cgroup))  in freezer_read()
259 	freezer = cgroup_freezer(cgroup);  in freezer_read()
265 		update_freezer_state(cgroup, freezer);  in freezer_read()
276 static int try_to_freeze_cgroup(struct cgroup *cgroup, struct freezer *freezer)  in try_to_freeze_cgroup()  argument
283 	cgroup_iter_start(cgroup, &it);  in try_to_freeze_cgroup()
284 	while ((task = cgroup_iter_next(cgroup, &it))) {  in try_to_freeze_cgroup()
292 	cgroup_iter_end(cgroup, &it);  in try_to_freeze_cgroup()
297 static void unfreeze_cgroup(struct cgroup *cgroup, struct freezer *freezer)  in unfreeze_cgroup()  argument
302 	cgroup_iter_start(cgroup, &it);  in unfreeze_cgroup()
303 	while ((task = cgroup_iter_next(cgroup, &it))) {  in unfreeze_cgroup()
306 	cgroup_iter_end(cgroup, &it);  in unfreeze_cgroup()
311 static int freezer_change_state(struct cgroup *cgroup,  in freezer_change_state()  argument
317 	freezer = cgroup_freezer(cgroup);  in freezer_change_state()
321 	update_freezer_state(cgroup, freezer);  in freezer_change_state()
327 		unfreeze_cgroup(cgroup, freezer);  in freezer_change_state()
330 		retval = try_to_freeze_cgroup(cgroup, freezer);  in freezer_change_state()
341 static int freezer_write(struct cgroup *cgroup,  in freezer_write()  argument
355 	if (!cgroup_lock_live_group(cgroup))  in freezer_write()
357 	retval = freezer_change_state(cgroup, goal_state);  in freezer_write()
370 static int freezer_populate(struct cgroup_subsys *ss, struct cgroup *cgroup)  in freezer_populate()  argument
372 	if (!cgroup->parent)  in freezer_populate()
374 	return cgroup_add_files(cgroup, ss, files, ARRAY_SIZE(files));  in freezer_populate()