diff --git a/[refs] b/[refs]
index 7fa25f7dc09e..820bbd5610cf 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3a2d63f87989e01437ba994df5f297528c353d7d
+refs/heads/master: a83e814b5bb948850e903585d18b6298b7093cb2
diff --git a/trunk/drivers/block/nbd.c b/trunk/drivers/block/nbd.c
index 869861a87f40..52003d7a69ae 100644
--- a/trunk/drivers/block/nbd.c
+++ b/trunk/drivers/block/nbd.c
@@ -703,6 +703,8 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 
 		mutex_unlock(&nbd->tx_lock);
 
+		if (nbd->flags & NBD_FLAG_READ_ONLY)
+			set_device_ro(bdev, true);
 		if (nbd->flags & NBD_FLAG_SEND_TRIM)
 			queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
 				nbd->disk->queue);
@@ -730,6 +732,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 		dev_warn(disk_to_dev(nbd->disk), "queue cleared\n");
 		kill_bdev(bdev);
 		queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
+		set_device_ro(bdev, false);
 		if (file)
 			fput(file);
 		nbd->flags = 0;