149 	struct blkcg_gq *blkg = tg_to_blkg(tg);  in tg_bps_limit()  local
153 	if (cgroup_subsys_on_dfl(io_cgrp_subsys) && !blkg->parent)  in tg_bps_limit()
160 		if (!list_empty(&blkg->blkcg->css.children) ||  in tg_bps_limit()
179 	struct blkcg_gq *blkg = tg_to_blkg(tg);  in tg_iops_limit()  local
183 	if (cgroup_subsys_on_dfl(io_cgrp_subsys) && !blkg->parent)  in tg_iops_limit()
190 		if (!list_empty(&blkg->blkcg->css.children) ||  in tg_iops_limit()
390 	struct blkcg_gq *blkg = tg_to_blkg(tg);  in throtl_pd_init()  local
391 	struct throtl_data *td = blkg->q->td;  in throtl_pd_init()
408 	if (cgroup_subsys_on_dfl(io_cgrp_subsys) && blkg->parent)  in throtl_pd_init()
409 		sq->parent_sq = &blkg_to_tg(blkg->parent)->service_queue;  in throtl_pd_init()
457 	struct blkcg_gq *blkg;  in blk_throtl_update_limit_valid()  local
461 	blkg_for_each_descendant_post(blkg, pos_css, td->queue->root_blkg) {  in blk_throtl_update_limit_valid()
462 		struct throtl_grp *tg = blkg_to_tg(blkg);  in blk_throtl_update_limit_valid()
1148 		q = tg->pd.blkg->q;  in throtl_pending_timer_fn()
1281 	struct blkcg_gq *blkg;  in tg_conf_updated()  local
1295 	blkg_for_each_descendant_pre(blkg, pos_css,  in tg_conf_updated()
1297 		struct throtl_grp *this_tg = blkg_to_tg(blkg);  in tg_conf_updated()
1302 		if (!cgroup_subsys_on_dfl(io_cgrp_subsys) || !blkg->parent ||  in tg_conf_updated()
1303 		    !blkg->parent->parent)  in tg_conf_updated()
1305 		parent_tg = blkg_to_tg(blkg->parent);  in tg_conf_updated()
1352 	tg = blkg_to_tg(ctx.blkg);  in tg_set_conf()
1456 	const char *dname = blkg_dev_name(pd->blkg);  in tg_prfill_limit()
1538 	tg = blkg_to_tg(ctx.blkg);  in tg_set_limit()
1783 	struct blkcg_gq *blkg;  in blk_throtl_cancel_bios()  local
1792 	blkg_for_each_descendant_post(blkg, pos_css, q->root_blkg) {  in blk_throtl_cancel_bios()
1793 		struct throtl_grp *tg = blkg_to_tg(blkg);  in blk_throtl_cancel_bios()
1800 		blkg_to_tg(blkg)->flags |= THROTL_TG_CANCELING;  in blk_throtl_cancel_bios()
1817 	struct blkcg_gq *blkg;  in throtl_can_upgrade()  local
1826 	blkg_for_each_descendant_post(blkg, pos_css, td->queue->root_blkg) {  in throtl_can_upgrade()
1827 		struct throtl_grp *tg = blkg_to_tg(blkg);  in throtl_can_upgrade()
1865 	struct blkcg_gq *blkg;  in throtl_upgrade_state()  local
1872 	blkg_for_each_descendant_post(blkg, pos_css, td->queue->root_blkg) {  in throtl_upgrade_state()
1873 		struct throtl_grp *tg = blkg_to_tg(blkg);  in throtl_upgrade_state()
2094 	struct blkcg_gq *blkg = bio->bi_blkg;  in __blk_throtl_bio()  local
2096 	struct throtl_grp *tg = blkg_to_tg(blkg);  in __blk_throtl_bio()
2235 	struct blkcg_gq *blkg;  in blk_throtl_bio_endio()  local
2243 	blkg = bio->bi_blkg;  in blk_throtl_bio_endio()
2244 	if (!blkg)  in blk_throtl_bio_endio()
2246 	tg = blkg_to_tg(blkg);  in blk_throtl_bio_endio()