2208 	mgctx->tset.nr_tasks++;  in cgroup_migrate_add_task()
2213 			      &mgctx->tset.src_csets);  in cgroup_migrate_add_task()
2216 			      &mgctx->tset.dst_csets);  in cgroup_migrate_add_task()
2226 struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset,  in cgroup_taskset_first()  argument
2229 	tset->cur_cset = list_first_entry(tset->csets, struct css_set, mg_node);  in cgroup_taskset_first()
2230 	tset->cur_task = NULL;  in cgroup_taskset_first()
2232 	return cgroup_taskset_next(tset, dst_cssp);  in cgroup_taskset_first()
2243 struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset,  in cgroup_taskset_next()  argument
2246 	struct css_set *cset = tset->cur_cset;  in cgroup_taskset_next()
2247 	struct task_struct *task = tset->cur_task;  in cgroup_taskset_next()
2249 	while (&cset->mg_node != tset->csets) {  in cgroup_taskset_next()
2257 			tset->cur_cset = cset;  in cgroup_taskset_next()
2258 			tset->cur_task = task;  in cgroup_taskset_next()
2267 				*dst_cssp = cset->mg_dst_cset->subsys[tset->ssid];  in cgroup_taskset_next()
2269 				*dst_cssp = cset->subsys[tset->ssid];  in cgroup_taskset_next()
2292 	struct cgroup_taskset *tset = &mgctx->tset;  in cgroup_migrate_execute()  local
2299 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2302 				tset->ssid = ssid;  in cgroup_migrate_execute()
2303 				ret = ss->can_attach(tset);  in cgroup_migrate_execute()
2318 	list_for_each_entry(cset, &tset->src_csets, mg_node) {  in cgroup_migrate_execute()
2337 	tset->csets = &tset->dst_csets;  in cgroup_migrate_execute()
2339 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2342 				tset->ssid = ssid;  in cgroup_migrate_execute()
2343 				ss->attach(tset);  in cgroup_migrate_execute()
2352 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2357 				tset->ssid = ssid;  in cgroup_migrate_execute()
2358 				ss->cancel_attach(tset);  in cgroup_migrate_execute()
2364 	list_splice_init(&tset->dst_csets, &tset->src_csets);  in cgroup_migrate_execute()
2365 	list_for_each_entry_safe(cset, tmp_cset, &tset->src_csets, mg_node) {  in cgroup_migrate_execute()
2376 	tset->nr_tasks = 0;  in cgroup_migrate_execute()
2377 	tset->csets    = &tset->src_csets;  in cgroup_migrate_execute()