513 	WARN_ON(!radix_tree_delete(&wb->bdi->cgwb_tree, wb->memcg_css->id));  in cgwb_kill()
545 	wb = radix_tree_lookup(&bdi->cgwb_tree, memcg_css->id);  in cgwb_create()
561 	ret = wb_init(wb, bdi, blkcg_css->id, gfp);  in cgwb_create()
589 		ret = radix_tree_insert(&bdi->cgwb_tree, memcg_css->id, wb);  in cgwb_create()
652 	wb = radix_tree_lookup(&bdi->cgwb_tree, memcg_css->id);  in wb_get_lookup()
884 static struct rb_node **bdi_lookup_rb_node(u64 id, struct rb_node **parentp)  in bdi_lookup_rb_node()  argument
896 		if (bdi->id > id)  in bdi_lookup_rb_node()
898 		else if (bdi->id < id)  in bdi_lookup_rb_node()
916 struct backing_dev_info *bdi_get_by_id(u64 id)  in bdi_get_by_id()  argument
922 	p = bdi_lookup_rb_node(id, NULL);  in bdi_get_by_id()
952 	bdi->id = ++bdi_id_cursor;  in bdi_register_va()
954 	p = bdi_lookup_rb_node(bdi->id, &parent);  in bdi_register_va()