1/*
2 * Compatibility header file for e2fsck which should be included
3 * instead of linux/jfs.h
4 *
5 * Copyright (C) 2000 Stephen C. Tweedie
6 *
7 * This file may be redistributed under the terms of the
8 * GNU General Public License version 2 or at your discretion
9 * any later version.
10 */
11
12/*
13 * Pull in the definition of the e2fsck context structure
14 */
15#include "e2fsck.h"
16
17struct buffer_head {
18	char		b_data[8192];
19	e2fsck_t	b_ctx;
20	io_channel 	b_io;
21	int	 	b_size;
22	blk_t	 	b_blocknr;
23	int	 	b_dirty;
24	int	 	b_uptodate;
25	int	 	b_err;
26};
27
28struct inode {
29	e2fsck_t	i_ctx;
30	ext2_ino_t	i_ino;
31	struct ext2_inode i_ext2;
32};
33
34struct kdev_s {
35	e2fsck_t	k_ctx;
36	int		k_dev;
37};
38
39#define K_DEV_FS	1
40#define K_DEV_JOURNAL	2
41
42typedef struct kdev_s *kdev_t;
43
44#define lock_buffer(bh) do {} while(0)
45#define unlock_buffer(bh) do {} while(0)
46#define buffer_req(bh) 1
47#define do_readahead(journal, start) do {} while(0)
48
49extern e2fsck_t e2fsck_global_ctx;  /* Try your very best not to use this! */
50
51typedef struct {
52	int	object_length;
53} kmem_cache_t;
54
55#define kmem_cache_alloc(cache,flags) malloc((cache)->object_length)
56#define kmem_cache_free(cache,obj) free(obj)
57#define kmem_cache_create(name,len,a,b,c,d) do_cache_create(len)
58#define kmem_cache_destroy(cache) do_cache_destroy(cache)
59#define kmalloc(len,flags) malloc(len)
60#define kfree(p) free(p)
61
62/*
63 * We use the standard libext2fs portability tricks for inline
64 * functions.
65 */
66extern kmem_cache_t * do_cache_create(int len);
67extern void do_cache_destroy(kmem_cache_t *cache);
68
69#if (defined(E2FSCK_INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
70#ifdef E2FSCK_INCLUDE_INLINE_FUNCS
71#define _INLINE_ extern
72#else
73#ifdef __GNUC__
74#define _INLINE_ extern __inline__
75#else				/* For Watcom C */
76#define _INLINE_ extern inline
77#endif
78#endif
79
80_INLINE_ kmem_cache_t * do_cache_create(int len)
81{
82	kmem_cache_t *new_cache;
83	new_cache = malloc(sizeof(*new_cache));
84	if (new_cache)
85		new_cache->object_length = len;
86	return new_cache;
87}
88
89_INLINE_ void do_cache_destroy(kmem_cache_t *cache)
90{
91	free(cache);
92}
93#undef _INLINE_
94#endif
95
96#define __init
97
98/*
99 * Now pull in the real linux/jfs.h definitions.
100 */
101#include <ext2fs/kernel-jbd.h>
102
103/*
104 * Kernel compatibility functions are defined in journal.c
105 */
106int journal_bmap(journal_t *journal, blk_t block, unsigned long *phys);
107struct buffer_head *getblk(kdev_t ctx, blk_t blocknr, int blocksize);
108void sync_blockdev(kdev_t kdev);
109void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
110void mark_buffer_dirty(struct buffer_head *bh);
111void mark_buffer_uptodate(struct buffer_head *bh, int val);
112void brelse(struct buffer_head *bh);
113int buffer_uptodate(struct buffer_head *bh);
114void wait_on_buffer(struct buffer_head *bh);
115
116/*
117 * Define newer 2.5 interfaces
118 */
119#define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize)
120#define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1)
121