494 	struct blkcg *blkcg = css_to_blkcg(wb->blkcg_css);  in cgwb_release_workfn()
500 	css_put(wb->blkcg_css);  in cgwb_release_workfn()
540 	struct cgroup_subsys_state *blkcg_css;  in cgwb_create()  local
548 	blkcg_css = cgroup_get_e_css(memcg_css->cgroup, &io_cgrp_subsys);  in cgwb_create()
549 	blkcg = css_to_blkcg(blkcg_css);  in cgwb_create()
556 	if (wb && wb->blkcg_css != blkcg_css) {  in cgwb_create()
571 	ret = wb_init(wb, bdi, blkcg_css->id, gfp);  in cgwb_create()
584 	wb->blkcg_css = blkcg_css;  in cgwb_create()
606 			css_get(blkcg_css);  in cgwb_create()
626 	css_put(blkcg_css);  in cgwb_create()
669 			struct cgroup_subsys_state *blkcg_css;  in wb_get_create()  local
672 			blkcg_css = cgroup_get_e_css(memcg_css->cgroup,  in wb_get_create()
674 			if (unlikely(wb->blkcg_css != blkcg_css ||  in wb_get_create()
677 			css_put(blkcg_css);  in wb_get_create()
696 		bdi->wb.blkcg_css = blkcg_root_css;  in cgwb_bdi_init()