Index: linux-stage/fs/ext4/super.c
===================================================================
--- linux-stage.orig/fs/ext4/super.c
+++ linux-stage/fs/ext4/super.c
@@ -2457,7 +2457,7 @@ static int ext4_fill_super(struct super_
 	sbi->s_resgid = le16_to_cpu(es->s_def_resgid);
 
 	set_opt(sbi->s_mount_opt, RESERVATION);
-	set_opt(sbi->s_mount_opt, BARRIER);
+	/* set_opt(sbi->s_mount_opt, BARRIER); */
 
 	/*
 	 * turn on extents feature by default in ext4 filesystem