On 6/2/23 09:38, mwilck@xxxxxxxx wrote:
@@ -2910,6 +2904,13 @@ scsi_target_block(struct device *dev)
device_block);
else
device_for_each_child(dev, NULL, target_block);
+
+ /*
+ * SCSI never enables blk-mq's BLK_MQ_F_BLOCKING flag,
+ * so blk_mq_wait_quiesce_done() comes down to just synchronize_rcu().
+ * Just calling it once is enough.
+ */
+ synchronize_rcu();
}
EXPORT_SYMBOL_GPL(scsi_target_block);
The above comment is wrong. See also commit b125bb99559e ("scsi:
core: Support setting BLK_MQ_F_BLOCKING").
Bart.
