From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 20 Apr 2015 18:52:23 +0000 (-0700)
Subject: f2fs: add missing version info in superblock
X-Git-Tag: v4.2-rc1~123^2~77
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0040b933187b11f78e83dd162a31d64a46be4e37;p=karo-tx-linux.git

f2fs: add missing version info in superblock

The mkfs.f2fs remains kernel version in superblock, but f2fs module has not
added that so far.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index 591f8c3ef410..8d345c24bcf7 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -50,6 +50,8 @@
 #define MAX_ACTIVE_NODE_LOGS	8
 #define MAX_ACTIVE_DATA_LOGS	8
 
+#define VERSION_LEN	256
+
 /*
  * For superblock
  */
@@ -86,6 +88,9 @@ struct f2fs_super_block {
 	__le32 extension_count;		/* # of extensions below */
 	__u8 extension_list[F2FS_MAX_EXTENSION][8];	/* extension array */
 	__le32 cp_payload;
+	__u8 version[VERSION_LEN];	/* the kernel version */
+	__u8 init_version[VERSION_LEN];	/* the initial kernel version */
+	__u8 reserved[892];		/* valid reserved region */
 } __packed;
 
 /*