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	e2fsck_t	b_ctx;
19	io_channel 	b_io;
20	int	 	b_size;
21	unsigned long long b_blocknr;
22	int	 	b_dirty;
23	int	 	b_uptodate;
24	int	 	b_err;
25	char		b_data[1024];
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} lkmem_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#define cond_resched()	do { } while (0)
63
64#ifndef __BIONIC__
65typedef unsigned int __be32;
66typedef __u64 __be64;
67#endif
68
69#define __init
70
71/*
72 * Now pull in the real linux/jfs.h definitions.
73 */
74#include <ext2fs/kernel-jbd.h>
75
76/*
77 * We use the standard libext2fs portability tricks for inline
78 * functions.
79 */
80#ifdef NO_INLINE_FUNCS
81extern lkmem_cache_t * do_cache_create(int len);
82extern void do_cache_destroy(lkmem_cache_t *cache);
83extern size_t journal_tag_bytes(journal_t *journal);
84#endif
85
86#if (defined(E2FSCK_INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
87#ifdef E2FSCK_INCLUDE_INLINE_FUNCS
88#if (__STDC_VERSION__ >= 199901L)
89#define _INLINE_ extern inline
90#else
91#define _INLINE_ inline
92#endif
93#else /* !E2FSCK_INCLUDE_INLINE FUNCS */
94#if (__STDC_VERSION__ >= 199901L)
95#define _INLINE_ inline
96#else /* not C99 */
97#ifdef __GNUC__
98#define _INLINE_ extern __inline__
99#else				/* For Watcom C */
100#define _INLINE_ extern inline
101#endif /* __GNUC__ */
102#endif /* __STDC_VERSION__ >= 199901L */
103#endif /* E2FSCK_INCLUDE_INLINE_FUNCS */
104
105
106_INLINE_ lkmem_cache_t * do_cache_create(int len)
107{
108	lkmem_cache_t *new_cache;
109	new_cache = malloc(sizeof(*new_cache));
110	if (new_cache)
111		new_cache->object_length = len;
112	return new_cache;
113}
114
115_INLINE_ void do_cache_destroy(lkmem_cache_t *cache)
116{
117	free(cache);
118}
119
120/*
121 * helper functions to deal with 32 or 64bit block numbers.
122 */
123_INLINE_ size_t journal_tag_bytes(journal_t *journal)
124{
125	if (JFS_HAS_INCOMPAT_FEATURE(journal, JFS_FEATURE_INCOMPAT_64BIT))
126		return JBD_TAG_SIZE64;
127	else
128		return JBD_TAG_SIZE32;
129}
130
131#undef _INLINE_
132#endif
133
134/*
135 * Kernel compatibility functions are defined in journal.c
136 */
137int journal_bmap(journal_t *journal, blk64_t block, unsigned long long *phys);
138struct buffer_head *getblk(kdev_t ctx, blk64_t blocknr, int blocksize);
139void sync_blockdev(kdev_t kdev);
140void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
141void mark_buffer_dirty(struct buffer_head *bh);
142void mark_buffer_uptodate(struct buffer_head *bh, int val);
143void brelse(struct buffer_head *bh);
144int buffer_uptodate(struct buffer_head *bh);
145void wait_on_buffer(struct buffer_head *bh);
146
147/*
148 * Define newer 2.5 interfaces
149 */
150#define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize)
151#define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1)
152