50 struct cgroup_subsys_state * const blkcg_root_css = &blkcg_root.css;
71 	struct cgroup_subsys_state *css;  in blkcg_css()  local
73 	css = kthread_blkcg();  in blkcg_css()
74 	if (css)  in blkcg_css()
75 		return css;  in blkcg_css()
128 	css_put(&blkg->blkcg->css);  in __blkg_release()
187 	return &bio->bi_blkg->blkcg->css;  in bio_blkcg_css()
199 	return css_to_blkcg(blkcg->css.parent);  in blkcg_parent()
285 	if (!css_tryget_online(&blkcg->css)) {  in blkg_create()
343 	css_put(&blkcg->css);  in blkg_create()
490 static int blkcg_reset_stats(struct cgroup_subsys_state *css,  in blkcg_reset_stats()  argument
493 	struct blkcg *blkcg = css_to_blkcg(css);  in blkcg_reset_stats()
827 static void blkcg_rstat_flush(struct cgroup_subsys_state *css, int cpu)  in blkcg_rstat_flush()  argument
829 	struct blkcg *blkcg = css_to_blkcg(css);  in blkcg_rstat_flush()
833 	if (!cgroup_parent(css->cgroup))  in blkcg_rstat_flush()
972 		cgroup_rstat_flush(blkcg->css.cgroup);  in blkcg_print_stat()
1001 struct list_head *blkcg_get_cgwb_list(struct cgroup_subsys_state *css)  in blkcg_get_cgwb_list()  argument
1003 	return &css_to_blkcg(css)->cgwb_list;  in blkcg_get_cgwb_list()
1111 static void blkcg_css_offline(struct cgroup_subsys_state *css)  in blkcg_css_offline()  argument
1114 	wb_blkcg_offline(css);  in blkcg_css_offline()
1117 	blkcg_unpin_online(css);  in blkcg_css_offline()
1120 static void blkcg_css_free(struct cgroup_subsys_state *css)  in blkcg_css_free()  argument
1122 	struct blkcg *blkcg = css_to_blkcg(css);  in blkcg_css_free()
1192 	return &blkcg->css;  in blkcg_css_alloc()
1206 static int blkcg_css_online(struct cgroup_subsys_state *css)  in blkcg_css_online()  argument
1208 	struct blkcg *parent = blkcg_parent(css_to_blkcg(css));  in blkcg_css_online()
1216 		blkcg_pin_online(&parent->css);  in blkcg_css_online()
1850 		struct cgroup_subsys_state *css)  in blkg_tryget_closest()  argument
1855 	blkg = blkg_lookup_create(css_to_blkcg(css), bio->bi_bdev->bd_disk);  in blkg_tryget_closest()
1883 				 struct cgroup_subsys_state *css)  in bio_associate_blkg_from_css()  argument
1888 	if (css && css->parent) {  in bio_associate_blkg_from_css()
1889 		bio->bi_blkg = blkg_tryget_closest(bio, css);  in bio_associate_blkg_from_css()
1908 	struct cgroup_subsys_state *css;  in bio_associate_blkg()  local
1913 		css = bio_blkcg_css(bio);  in bio_associate_blkg()
1915 		css = blkcg_css();  in bio_associate_blkg()
1917 	bio_associate_blkg_from_css(bio, css);  in bio_associate_blkg()
1966 		cgroup_rstat_updated(bio->bi_blkg->blkcg->css.cgroup, cpu);  in blk_cgroup_bio_start()
1972 	struct cgroup_subsys_state *css;  in blk_cgroup_congested()  local
1976 	for (css = blkcg_css(); css; css = css->parent) {  in blk_cgroup_congested()
1977 		if (atomic_read(&css->cgroup->congestion_count)) {  in blk_cgroup_congested()