270     blk_unref(blk);  in test_drv_cb_drain_all()
277     blk_unref(blk);  in test_drv_cb_drain()
290     blk_unref(blk);  in test_drv_cb_co_drain_all()
303     blk_unref(blk);  in test_drv_cb_co_drain()
340     blk_unref(blk);  in test_quiesce_drain_all()
347     blk_unref(blk);  in test_quiesce_drain()
360     blk_unref(blk);  in test_quiesce_co_drain_all()
373     blk_unref(blk);  in test_quiesce_co_drain()
425     blk_unref(blk);  in test_nested()
463     blk_unref(blk_a);  in test_graph_change_drain_all()
482     blk_unref(blk_b);  in test_graph_change_drain_all()
614     blk_unref(blk);  in test_iothread_common()
890     blk_unref(blk_src);  in test_blockjob_common_drain_node()
891     blk_unref(blk_target);  in test_blockjob_common_drain_node()
1130         blk_unref(blk);  in do_test_delete_by_drain()
1334     blk_unref(blk);  in test_detach_indirect()
1393     blk_unref(blk);  in test_append_to_drained()
2056     blk_unref(parent_blk);  in do_test_replace_child_mid_drain()