Hello,
I have a question about device number extension in "e2fsprogs-1.35".
In Linux kernel 2.6, device number is extended from 16-bit to 32-bit. All utilities and libraries should make corresponding extension for this new feature in kernel 2.6.
Following operation defines type "kdev_t" as "unsigned short" type, thus the device number has only 16-bit.
In file lib/ext2fs/jfs_user.h: 4
typedef unsigned short kdev_t;
In file misc/jfs_user.h: 4
typedef unsigned short kdev_t;
In file debugfs/jfs_user.h: 4
typedef unsigned short kdev_t;
It seems not to correspond to device number extension.I think Kdev_t should be defined as 32-bit long int.
The attached patch is for device number extension.
As following:
--- e2fsprogs-1.35-orig/debugfs/jfs_user.h 2004-08-25 13:42:41.118920528 -0400
+++ e2fsprogs-1.35/debugfs/jfs_user.h 2004-08-25 13:47:00.732453272 -0400
@@ -1,7 +1,7 @@
#ifndef _JFS_USER_H
#define _JFS_USER_H
-typedef unsigned short kdev_t;
+typedef unsigned long kdev_t;
#include <ext2fs/kernel-jbd.h>
--- e2fsprogs-1.35-orig/lib/ext2fs/jfs_user.h 2004-08-25 13:42:41.136917792 -0400
+++ e2fsprogs-1.35/lib/ext2fs/jfs_user.h 2004-08-25 13:43:42.790545016 -0400
@@ -1,7 +1,7 @@
#ifndef _JFS_USER_H
#define _JFS_USER_H
-typedef unsigned short kdev_t;
+typedef unsigned long kdev_t;
#include "kernel-jbd.h"
--- e2fsprogs-1.35-orig/misc/jfs_user.h 2004-08-25 13:42:41.247900920 -0400
+++ e2fsprogs-1.35/misc/jfs_user.h 2004-08-25 13:46:38.840781312 -0400
@@ -1,7 +1,7 @@
#ifndef _JFS_USER_H
#define _JFS_USER_H
-typedef unsigned short kdev_t;
+typedef unsigned long kdev_t;
#include <ext2fs/kernel-jbd.h>
Best Regards,
Wang Chen
----------------------------------------------------------
Wang Chen
Dept. of Technology and Development
Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
No. 16-5, Guangzhou Rd., Nanjing, P.R.China 210008
PHONE : +86+25-86630523-636
FUJITSU INTERNAL: 79955-636
FAX : +86+25-83317685
Mail : wangchen@xxxxxxxxxxxxxxxx
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