2522 	mgctx->tset.nr_tasks++;  in cgroup_migrate_add_task()
2527 			      &mgctx->tset.src_csets);  in cgroup_migrate_add_task()
2530 			      &mgctx->tset.dst_csets);  in cgroup_migrate_add_task()
2540 struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset,  in cgroup_taskset_first()  argument
2543 	tset->cur_cset = list_first_entry(tset->csets, struct css_set, mg_node);  in cgroup_taskset_first()
2544 	tset->cur_task = NULL;  in cgroup_taskset_first()
2546 	return cgroup_taskset_next(tset, dst_cssp);  in cgroup_taskset_first()
2557 struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset,  in cgroup_taskset_next()  argument
2560 	struct css_set *cset = tset->cur_cset;  in cgroup_taskset_next()
2561 	struct task_struct *task = tset->cur_task;  in cgroup_taskset_next()
2563 	while (CGROUP_HAS_SUBSYS_CONFIG && &cset->mg_node != tset->csets) {  in cgroup_taskset_next()
2571 			tset->cur_cset = cset;  in cgroup_taskset_next()
2572 			tset->cur_task = task;  in cgroup_taskset_next()
2581 				*dst_cssp = cset->mg_dst_cset->subsys[tset->ssid];  in cgroup_taskset_next()
2583 				*dst_cssp = cset->subsys[tset->ssid];  in cgroup_taskset_next()
2606 	struct cgroup_taskset *tset = &mgctx->tset;  in cgroup_migrate_execute()  local
2613 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2616 				tset->ssid = ssid;  in cgroup_migrate_execute()
2617 				ret = ss->can_attach(tset);  in cgroup_migrate_execute()
2632 	list_for_each_entry(cset, &tset->src_csets, mg_node) {  in cgroup_migrate_execute()
2658 	tset->csets = &tset->dst_csets;  in cgroup_migrate_execute()
2660 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2663 				tset->ssid = ssid;  in cgroup_migrate_execute()
2664 				ss->attach(tset);  in cgroup_migrate_execute()
2673 	if (tset->nr_tasks) {  in cgroup_migrate_execute()
2678 				tset->ssid = ssid;  in cgroup_migrate_execute()
2679 				ss->cancel_attach(tset);  in cgroup_migrate_execute()
2685 	list_splice_init(&tset->dst_csets, &tset->src_csets);  in cgroup_migrate_execute()
2686 	list_for_each_entry_safe(cset, tmp_cset, &tset->src_csets, mg_node) {  in cgroup_migrate_execute()
2697 	tset->nr_tasks = 0;  in cgroup_migrate_execute()
2698 	tset->csets    = &tset->src_csets;  in cgroup_migrate_execute()