Btrfs: add GPLv2
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/hash.c b/fs/btrfs/hash.c
index 32de1ea..e5c7690 100644
--- a/fs/btrfs/hash.c
+++ b/fs/btrfs/hash.c
@@ -1,4 +1,22 @@
/*
+ * Copyright (C) 2007 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+/*
* Original copy from:
* linux/fs/ext3/hash.c
*