Patch

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b53c243a142b..c62445cb01ca 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1701,6 +1701,12 @@  static int parse_options(char *options, struct super_block *sb,
 			return 0;
 		}
 	}
+	if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA &&
+	    test_opt(sb, JOURNAL_ASYNC_COMMIT)) {
+		ext4_msg(sb, KERN_ERR, "can't mount with journal_async_commit "
+			 "in data=ordered mode");
+		return 0;
+	}
 	return 1;
 }