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authorArve Hjønnevåg <arve@android.com>2010-05-18 20:35:30 -0700
committerDan Willemsen <dwillemsen@nvidia.com>2011-11-30 21:38:10 -0800
commit62a5ed5185d19e163afbf7be97b7491f880ec7bb (patch)
treea391b7d6419bcdd72525580f471677f60fad058b /fs/yaffs2/yaffs_tagsvalidity.c
parentf472945b310e1d6bbb51efa38e0f4c0248eec068 (diff)
fs: yaffs: Import yaffs from Thu Dec 23 13:31:37 2010 +1300
commit ddf33fed15c2376bfb602d62dd018c63fce60df8 Author: Timothy Manning <tfhmanning@gmail.com> Date: Thu Dec 23 13:31:37 2010 +1300 yaffs updated direct/timothy_tests/quick_tests Signed-off-by: Timothy Manning <tfhmanning@gmail.com> Change-Id: I5bbe5a05277bdf8a6fe188bbe4c77725b3fa2aae Signed-off-by: Dima Zavin <dima@android.com>
Diffstat (limited to 'fs/yaffs2/yaffs_tagsvalidity.c')
-rw-r--r--fs/yaffs2/yaffs_tagsvalidity.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/yaffs2/yaffs_tagsvalidity.c b/fs/yaffs2/yaffs_tagsvalidity.c
new file mode 100644
index 000000000000..4358d79d4bec
--- /dev/null
+++ b/fs/yaffs2/yaffs_tagsvalidity.c
@@ -0,0 +1,27 @@
+/*
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2010 Aleph One Ltd.
+ * for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "yaffs_tagsvalidity.h"
+
+void yaffs_init_tags(struct yaffs_ext_tags *tags)
+{
+ memset(tags, 0, sizeof(struct yaffs_ext_tags));
+ tags->validity0 = 0xAAAAAAAA;
+ tags->validity1 = 0x55555555;
+}
+
+int yaffs_validate_tags(struct yaffs_ext_tags *tags)
+{
+ return (tags->validity0 == 0xAAAAAAAA && tags->validity1 == 0x55555555);
+
+}