2383 	mgctx->tset.nr_tasks++;  in cgroup_migrate_add_task()
2388 			      &mgctx->tset.src_csets);  in cgroup_migrate_add_task()
2391 			      &mgctx->tset.dst_csets);  in cgroup_migrate_add_task()
2401 struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset,  in cgroup_taskset_first()  argument
2404 	tset->cur_cset = list_first_entry(tset->csets, struct css_set, mg_node);  in cgroup_taskset_first()
2405 	tset->cur_task = NULL;  in cgroup_taskset_first()
2407 	return cgroup_taskset_next(tset, dst_cssp);  in cgroup_taskset_first()
2418 struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset,  in cgroup_taskset_next()  argument
2421 	struct css_set *cset = tset->cur_cset;  in cgroup_taskset_next()
2422 	struct task_struct *task = tset->cur_task;  in cgroup_taskset_next()
2424 	while (&cset->mg_node != tset->csets) {  in cgroup_taskset_next()
2432 			tset->cur_cset = cset;  in cgroup_taskset_next()
2433 			tset->cur_task = task;  in cgroup_taskset_next()
2442 				*dst_cssp = cset->mg_dst_cset->subsys[tset->ssid];  in cgroup_taskset_next()
2444 				*dst_cssp = cset->subsys[tset->ssid];  in cgroup_taskset_next()
2467 	struct cgroup_taskset *tset = &mgctx->tset;  in cgroup_migrate_execute()  local
2474 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2477 				tset->ssid = ssid;  in cgroup_migrate_execute()
2478 				ret = ss->can_attach(tset);  in cgroup_migrate_execute()
2493 	list_for_each_entry(cset, &tset->src_csets, mg_node) {  in cgroup_migrate_execute()
2519 	tset->csets = &tset->dst_csets;  in cgroup_migrate_execute()
2521 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2524 				tset->ssid = ssid;  in cgroup_migrate_execute()
2525 				ss->attach(tset);  in cgroup_migrate_execute()
2534 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2539 				tset->ssid = ssid;  in cgroup_migrate_execute()
2540 				ss->cancel_attach(tset);  in cgroup_migrate_execute()
2546 	list_splice_init(&tset->dst_csets, &tset->src_csets);  in cgroup_migrate_execute()
2547 	list_for_each_entry_safe(cset, tmp_cset, &tset->src_csets, mg_node) {  in cgroup_migrate_execute()
2558 	tset->nr_tasks = 0;  in cgroup_migrate_execute()
2559 	tset->csets    = &tset->src_csets;  in cgroup_migrate_execute()