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 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
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 } 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 */
66 extern kmem_cache_t * do_cache_create(int len);
67 extern 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
do_cache_create(int len)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
do_cache_destroy(kmem_cache_t * cache)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 */
106 int journal_bmap(journal_t *journal, blk_t block, unsigned long *phys);
107 struct buffer_head *getblk(kdev_t ctx, blk_t blocknr, int blocksize);
108 void sync_blockdev(kdev_t kdev);
109 void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
110 void mark_buffer_dirty(struct buffer_head *bh);
111 void mark_buffer_uptodate(struct buffer_head *bh, int val);
112 void brelse(struct buffer_head *bh);
113 int buffer_uptodate(struct buffer_head *bh);
114 void 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