97 	if (blkg->parent)  in __blkg_release()
98 		blkg_put(blkg->parent);  in __blkg_release()
266 		blkg->parent = __blkg_lookup(blkcg_parent(blkcg), q, false);  in blkg_create()
267 		if (WARN_ON_ONCE(!blkg->parent)) {  in blkg_create()
271 		blkg_get(blkg->parent);  in blkg_create()
350 		struct blkcg *parent = blkcg_parent(blkcg);  in blkg_lookup_create()  local
353 		while (parent) {  in blkg_lookup_create()
354 			blkg = __blkg_lookup(parent, q, false);  in blkg_lookup_create()
360 			pos = parent;  in blkg_lookup_create()
361 			parent = blkcg_parent(parent);  in blkg_lookup_create()
675 		struct blkcg *parent;  in blkg_conf_prep()  local
678 		parent = blkcg_parent(blkcg);  in blkg_conf_prep()
679 		while (parent && !__blkg_lookup(parent, q, false)) {  in blkg_conf_prep()
680 			pos = parent;  in blkg_conf_prep()
681 			parent = blkcg_parent(parent);  in blkg_conf_prep()
813 		struct blkcg_gq *parent = blkg->parent;  in blkcg_rstat_flush()  local
834 		if (parent && parent->parent) {  in blkcg_rstat_flush()
835 			flags = u64_stats_update_begin_irqsave(&parent->iostat.sync);  in blkcg_rstat_flush()
838 			blkg_iostat_add(&parent->iostat.cur, &delta);  in blkcg_rstat_flush()
840 			u64_stats_update_end_irqrestore(&parent->iostat.sync, flags);  in blkcg_rstat_flush()
961 	if (!seq_css(sf)->parent)  in blkcg_print_stat()
1162 	struct blkcg *parent = blkcg_parent(blkcg);  in blkcg_css_online()  local
1169 	if (parent)  in blkcg_css_online()
1170 		blkcg_pin_online(parent);  in blkcg_css_online()
1583 	if (!blkg->parent)  in __blkcg_punt_bio_submit()
1666 	while (blkg->parent) {  in blkcg_maybe_throttle_blkg()
1679 		blkg = blkg->parent;  in blkcg_maybe_throttle_blkg()
1837 		blkg = blkg->parent;  in blkg_tryget_closest()
1864 	if (css && css->parent) {  in bio_associate_blkg_from_css()