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
17 struct 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
28 struct inode {
29 e2fsck_t i_ctx;
30 ext2_ino_t i_ino;
31 struct ext2_inode i_ext2;
32 };
33
34 struct 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
42 typedef 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
49 extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
50
51 typedef 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__
65 typedef unsigned int __be32;
66 typedef __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
81 extern lkmem_cache_t * do_cache_create(int len);
82 extern void do_cache_destroy(lkmem_cache_t *cache);
83 extern 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
do_cache_create(int len)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
do_cache_destroy(lkmem_cache_t * cache)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 */
journal_tag_bytes(journal_t * journal)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 */
137 int journal_bmap(journal_t *journal, blk64_t block, unsigned long long *phys);
138 struct buffer_head *getblk(kdev_t ctx, blk64_t blocknr, int blocksize);
139 void sync_blockdev(kdev_t kdev);
140 void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
141 void mark_buffer_dirty(struct buffer_head *bh);
142 void mark_buffer_uptodate(struct buffer_head *bh, int val);
143 void brelse(struct buffer_head *bh);
144 int buffer_uptodate(struct buffer_head *bh);
145 void 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