1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/*
* xia.h - xiafs-specific include file for the Linux file system
* degragmenter.
* $Id: xia.h,v 1.3 1997/08/10 16:32:10 linux Exp $
*
* Copyleft (C) 1993 Alexey Vovenko (vovenko@ixwin.ihep.su)
* Copyright (C) 1992 Stephen Tweedie (sct@dcs.ed.ac.uk)
* Copyright (C) 1992 Remy Card (card@masi.ibp.fr)
* Copyright (C) 1991 Linus Torvalds (torvalds@kruuna.helsinki.fi)
*
* This file may be redistributed under the terms of the GNU General
* Public License.
*
*/
#include <linux/fs.h>
#include <linux/xia_fs.h>
#include <linux/xia_fs_sb.h>
#define ROOT_INO _XIAFS_ROOT_INO
#define BAD_INO _XIAFS_BAD_INO
#define FIRST_USER_INODE 3
#define DIRECT_ZONES 8
typedef int Block;
#define d_inode xiafs_inode
#define UPPER(size,n) ((size + ((n) - 1)) / (n))
#define INODE_SIZE (sizeof (struct d_inode))
#define INODE_BLOCKS UPPER(INODES, _XIAFS_INODES_PER_BLOCK)
#define INODE_BUFFER_SIZE (INODE_BLOCKS * BLOCK_SIZE)
#define BITS_PER_BLOCK (BLOCK_SIZE<<3)
#define Super (* (struct xiafs_super_block *) super_block_buffer)
#define INODES ((unsigned long)Super.s_ninodes)
#define ZONES ((unsigned long)Super.s_nzones)
#define IMAPS ((unsigned long)Super.s_imap_zones)
#define ZMAPS ((unsigned long)Super.s_zmap_zones)
#define FIRSTZONE ((unsigned long)Super.s_firstdatazone)
#define ZONESIZE ((unsigned long)Super.s_zone_size)
#define MAXSIZE ((unsigned long)Super.s_max_size)
#define MAGIC (Super.s_magic)
#define NORM_FIRSTZONE (1+IMAPS+ZMAPS+INODE_BLOCKS)
#define INODES_PER_BLOCK (BLOCK_SIZE >> 2)
|
