1 files changed, 3 insertions, 3 deletions

diff --git a/fs/buffer.c b/fs/buffer.c
index 263f88e4dffb..3b116078b4c3 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -180,7 +180,7 @@ int fsync_bdev(struct block_device *bdev)
  * freeze_bdev  --  lock a filesystem and force it into a consistent state
  * @bdev:       blockdevice to lock
  *
- * This takes the block device bd_mount_mutex to make sure no new mounts
+ * This takes the block device bd_mount_sem to make sure no new mounts
  * happen on bdev until thaw_bdev() is called.
  * If a superblock is found on this device, we take the s_umount semaphore
  * on it to make sure nobody unmounts until the snapshot creation is done.
@@ -189,7 +189,7 @@ struct super_block *freeze_bdev(struct block_device *bdev)
 {
         struct super_block *sb;
 
-        mutex_lock(&bdev->bd_mount_mutex);
+        down(&bdev->bd_mount_sem);
         sb = get_super(bdev);
         if (sb && !(sb->s_flags & MS_RDONLY)) {
                 sb->s_frozen = SB_FREEZE_WRITE;
@@ -231,7 +231,7 @@ void thaw_bdev(struct block_device *bdev, struct super_block *sb)
                 drop_super(sb);
         }
 
-        mutex_unlock(&bdev->bd_mount_mutex);
+        up(&bdev->bd_mount_sem);
 }
 EXPORT_SYMBOL(thaw_bdev);