2259 #define CGROUP_TASKSET_INIT(tset)	(struct cgroup_taskset){	\  argument
2260 	.src_csets		= LIST_HEAD_INIT(tset.src_csets),	\
2261 	.dst_csets		= LIST_HEAD_INIT(tset.dst_csets),	\
2262 	.csets			= &tset.src_csets,			\
2276 			       struct cgroup_taskset *tset)  in cgroup_taskset_add()  argument
2296 		list_add_tail(&cset->mg_node, &tset->src_csets);  in cgroup_taskset_add()
2299 			       &tset->dst_csets);  in cgroup_taskset_add()
2309 struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset,  in cgroup_taskset_first()  argument
2312 	tset->cur_cset = list_first_entry(tset->csets, struct css_set, mg_node);  in cgroup_taskset_first()
2313 	tset->cur_task = NULL;  in cgroup_taskset_first()
2315 	return cgroup_taskset_next(tset, dst_cssp);  in cgroup_taskset_first()
2326 struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset,  in cgroup_taskset_next()  argument
2329 	struct css_set *cset = tset->cur_cset;  in cgroup_taskset_next()
2330 	struct task_struct *task = tset->cur_task;  in cgroup_taskset_next()
2332 	while (&cset->mg_node != tset->csets) {  in cgroup_taskset_next()
2340 			tset->cur_cset = cset;  in cgroup_taskset_next()
2341 			tset->cur_task = task;  in cgroup_taskset_next()
2350 				*dst_cssp = cset->mg_dst_cset->subsys[tset->ssid];  in cgroup_taskset_next()
2352 				*dst_cssp = cset->subsys[tset->ssid];  in cgroup_taskset_next()
2374 static int cgroup_taskset_migrate(struct cgroup_taskset *tset,  in cgroup_taskset_migrate()  argument
2383 	if (list_empty(&tset->src_csets))  in cgroup_taskset_migrate()
2389 			tset->ssid = i;  in cgroup_taskset_migrate()
2390 			ret = css->ss->can_attach(tset);  in cgroup_taskset_migrate()
2404 	list_for_each_entry(cset, &tset->src_csets, mg_node) {  in cgroup_taskset_migrate()
2421 	tset->csets = &tset->dst_csets;  in cgroup_taskset_migrate()
2425 			tset->ssid = i;  in cgroup_taskset_migrate()
2426 			css->ss->attach(tset);  in cgroup_taskset_migrate()
2438 			tset->ssid = i;  in cgroup_taskset_migrate()
2439 			css->ss->cancel_attach(tset);  in cgroup_taskset_migrate()
2444 	list_splice_init(&tset->dst_csets, &tset->src_csets);  in cgroup_taskset_migrate()
2445 	list_for_each_entry_safe(cset, tmp_cset, &tset->src_csets, mg_node) {  in cgroup_taskset_migrate()
2615 	struct cgroup_taskset tset = CGROUP_TASKSET_INIT(tset);  in cgroup_migrate()  local
2627 		cgroup_taskset_add(task, &tset);  in cgroup_migrate()
2634 	return cgroup_taskset_migrate(&tset, cgrp);  in cgroup_migrate()
2916 	struct cgroup_taskset tset = CGROUP_TASKSET_INIT(tset);  in cgroup_update_dfl_csses()  local
2955 			cgroup_taskset_add(task, &tset);  in cgroup_update_dfl_csses()
2959 	ret = cgroup_taskset_migrate(&tset, cgrp);  in cgroup_update_dfl_csses()