[RFC][Update][Patch 16/16]Update ext3 superblock definition

[Mingming Cao]

The ext3 on-disk superblock definition in the kernel is lagging
behind some e2fsprogs-only fields (the backup of the journal inode,
and the mkfs timestamp), leading to the high bits of the fs size
being declared in a field already reserved by e2fsprogs.  Bring them
back in sync.

Signed-off-by: Stephen Tweedie <sct@xxxxxxxxxx>


---

 linux-2.6.17-ming/include/linux/ext3_fs.h |   10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diff -puN include/linux/ext3_fs.h~ext3-sb-struc-sync-with-e2fsprog include/linux/ext3_fs.h
--- linux-2.6.17/include/linux/ext3_fs.h~ext3-sb-struc-sync-with-e2fsprog	2006-06-28 16:47:18.377462723 -0700
+++ linux-2.6.17-ming/include/linux/ext3_fs.h	2006-06-28 16:47:18.381462264 -0700
@@ -532,13 +532,15 @@ struct ext3_super_block {
 	__u8	s_def_hash_version;	/* Default hash version to use */
 	__u8	s_reserved_char_pad;
 	__u16	s_reserved_word_pad;
-	__le32	s_default_mount_opts;
+/*100*/	__le32	s_default_mount_opts;
 	__le32	s_first_meta_bg; 	/* First metablock block group */
+	__le32	s_mkfs_time;		/* When the filesystem was created */
+	__le32	s_jnl_blocks[17]; 	/* Backup of the journal inode */
 	/* 64bit support valid if EXT3_FEATURE_COMPAT_64BIT */
-	__le32	s_blocks_count_hi;	/* Blocks count */
-/*100*/	__le32	s_r_blocks_count_hi;	/* Reserved blocks count */
+/*150*/	__le32	s_blocks_count_hi;	/* Blocks count */
+	__le32	s_r_blocks_count_hi;	/* Reserved blocks count */
 	__le32	s_free_blocks_count_hi;	/* Free blocks count */
-	__u32	s_reserved[187];	/* Padding to the end of the block */
+	__u32	s_reserved[169];	/* Padding to the end of the block */
 };
 
 

_


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