diff --git a/[refs] b/[refs]
index dc73201ab9bc..ad7669429912 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6a8736d10cb413be95ea443ba40f25c93f4ef9b2
+refs/heads/master: 05447420f99c1c44063c7f00054667c022cc1365
diff --git a/trunk/drivers/md/dm.c b/trunk/drivers/md/dm.c
index 2011704b8ba0..cd2f7e77b625 100644
--- a/trunk/drivers/md/dm.c
+++ b/trunk/drivers/md/dm.c
@@ -512,9 +512,11 @@ static void end_io_acct(struct dm_io *io)
  */
 static void queue_io(struct mapped_device *md, struct bio *bio)
 {
-	spin_lock_irq(&md->deferred_lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&md->deferred_lock, flags);
 	bio_list_add(&md->deferred, bio);
-	spin_unlock_irq(&md->deferred_lock);
+	spin_unlock_irqrestore(&md->deferred_lock, flags);
 	queue_work(md->wq, &md->work);
 }