diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 36c451a9a0bf..e74cf1712778 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6291,8 +6291,8 @@ static int btrfs_dirty_inode(struct btrfs_inode *inode)
 }
 
 /*
- * This is a copy of file_update_time.  We need this so we can return error on
- * ENOSPC for updating the inode in the case of file write and mmap writes.
+ * We need our own ->update_time so that we can return error on ENOSPC for
+ * updating the inode in the case of file write and mmap writes.
  */
 static int btrfs_update_time(struct inode *inode, int flags)
 {