diff --git a/[refs] b/[refs]
index 807dbb4f5b86..9a251b7fad4a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d4308febf3551d46884561b7c3fdd62ad3ca7ff2
+refs/heads/master: 5370019dc2d2c2ff90e95d181468071362934f3a
diff --git a/trunk/drivers/block/loop.c b/trunk/drivers/block/loop.c
index ae1251270624..7f8065392064 100644
--- a/trunk/drivers/block/loop.c
+++ b/trunk/drivers/block/loop.c
@@ -1285,11 +1285,9 @@ static int loop_set_capacity(struct loop_device *lo, struct block_device *bdev)
 	/* the width of sector_t may be narrow for bit-shift */
 	sz = sec;
 	sz <<= 9;
-	mutex_lock(&bdev->bd_mutex);
 	bd_set_size(bdev, sz);
 	/* let user-space know about the new size */
 	kobject_uevent(&disk_to_dev(bdev->bd_disk)->kobj, KOBJ_CHANGE);
-	mutex_unlock(&bdev->bd_mutex);
 
  out:
 	return err;