From d29f5ece8b534180076e2859dcc014b3c36b00cf Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@swtch.com>
Date: Sun, 1 Jun 2008 08:47:06 -0400
Subject: libdiskfs: ext2 revision 1 tweaks (Fazlul Shahriar)

---
 src/libdiskfs/ext2.h | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

(limited to 'src/libdiskfs/ext2.h')

diff --git a/src/libdiskfs/ext2.h b/src/libdiskfs/ext2.h
index 6109974d..7ddd400a 100644
--- a/src/libdiskfs/ext2.h
+++ b/src/libdiskfs/ext2.h
@@ -80,7 +80,12 @@ struct Super
 	u32int	revlevel;		/* Revision level */
 	u16int	defresuid;		/* Default uid for reserved blocks */
 	u16int	defresgid;		/* Default gid for reserved blocks */
-	u32int	reserved[235];	/* Padding to the end of the block */
+	
+	/* the following are only available with revlevel = 1 */
+	u32int	firstino;		/* First non-reserved inode */
+	u16int	inosize;		/* size of inode structure */
+	u16int	blockgroupnr;	/* block group # of this super block */
+	u32int	reserved[233];	/* Padding to the end of the block */
 };
 
 /*
@@ -122,10 +127,6 @@ struct Inode
 	u32int	diracl;	/* Directory ACL or high size bits */
 	u32int	faddr;		/* Fragment address */
 };
-enum
-{
-	InodeSize = 128
-};
 
 /*
  * Directory entry
@@ -153,6 +154,7 @@ struct Ext2
 	uint	inospergroup;
 	uint	blockspergroup;
 	uint	inosperblock;
+	uint	inosize;
 	uint	groupaddr;
 	uint	descperblock;
 	uint	firstblock;
-- 
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