706 #define cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp)		\  argument
709 		       (dsct) = (d_css)->cgroup;			\
710 		       cgroup_is_dead(dsct); }))			\
715 #define cgroup_for_each_live_descendant_post(dsct, d_css, cgrp)		\  argument
718 		       (dsct) = (d_css)->cgroup;			\
719 		       cgroup_is_dead(dsct); }))			\
2876 	struct cgroup *dsct;  in cgroup_update_dfl_csses()  local
2886 	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) {  in cgroup_update_dfl_csses()
2889 		list_for_each_entry(link, &dsct->cset_links, cset_link)  in cgroup_update_dfl_csses()
2890 			cgroup_migrate_add_src(link->cset, dsct, &mgctx);  in cgroup_update_dfl_csses()
2927 	struct cgroup *dsct;  in cgroup_lock_and_drain_offline()  local
2935 	cgroup_for_each_live_descendant_post(dsct, d_css, cgrp) {  in cgroup_lock_and_drain_offline()
2937 			struct cgroup_subsys_state *css = cgroup_css(dsct, ss);  in cgroup_lock_and_drain_offline()
2943 			cgroup_get_live(dsct);  in cgroup_lock_and_drain_offline()
2944 			prepare_to_wait(&dsct->offline_waitq, &wait,  in cgroup_lock_and_drain_offline()
2949 			finish_wait(&dsct->offline_waitq, &wait);  in cgroup_lock_and_drain_offline()
2951 			cgroup_put(dsct);  in cgroup_lock_and_drain_offline()
2967 	struct cgroup *dsct;  in cgroup_save_control()  local
2970 	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) {  in cgroup_save_control()
2971 		dsct->old_subtree_control = dsct->subtree_control;  in cgroup_save_control()
2972 		dsct->old_subtree_ss_mask = dsct->subtree_ss_mask;  in cgroup_save_control()
2973 		dsct->old_dom_cgrp = dsct->dom_cgrp;  in cgroup_save_control()
2987 	struct cgroup *dsct;  in cgroup_propagate_control()  local
2990 	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) {  in cgroup_propagate_control()
2991 		dsct->subtree_control &= cgroup_control(dsct);  in cgroup_propagate_control()
2992 		dsct->subtree_ss_mask =  in cgroup_propagate_control()
2993 			cgroup_calc_subtree_ss_mask(dsct->subtree_control,  in cgroup_propagate_control()
2994 						    cgroup_ss_mask(dsct));  in cgroup_propagate_control()
3008 	struct cgroup *dsct;  in cgroup_restore_control()  local
3011 	cgroup_for_each_live_descendant_post(dsct, d_css, cgrp) {  in cgroup_restore_control()
3012 		dsct->subtree_control = dsct->old_subtree_control;  in cgroup_restore_control()
3013 		dsct->subtree_ss_mask = dsct->old_subtree_ss_mask;  in cgroup_restore_control()
3014 		dsct->dom_cgrp = dsct->old_dom_cgrp;  in cgroup_restore_control()
3045 	struct cgroup *dsct;  in cgroup_apply_control_enable()  local
3050 	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp) {  in cgroup_apply_control_enable()
3052 			struct cgroup_subsys_state *css = cgroup_css(dsct, ss);  in cgroup_apply_control_enable()
3054 			if (!(cgroup_ss_mask(dsct) & (1 << ss->id)))  in cgroup_apply_control_enable()
3058 				css = css_create(dsct, ss);  in cgroup_apply_control_enable()
3091 	struct cgroup *dsct;  in cgroup_apply_control_disable()  local
3096 	cgroup_for_each_live_descendant_post(dsct, d_css, cgrp) {  in cgroup_apply_control_disable()
3098 			struct cgroup_subsys_state *css = cgroup_css(dsct, ss);  in cgroup_apply_control_disable()
3106 			    !(cgroup_ss_mask(dsct) & (1 << ss->id))) {  in cgroup_apply_control_disable()
3322 	struct cgroup *dsct;  in cgroup_enable_threaded()  local
3353 	cgroup_for_each_live_descendant_pre(dsct, d_css, cgrp)  in cgroup_enable_threaded()
3354 		if (dsct == cgrp || cgroup_is_threaded(dsct))  in cgroup_enable_threaded()
3355 			dsct->dom_cgrp = dom_cgrp;  in cgroup_enable_threaded()