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 #ifndef _JFS_USER_H 12 #define _JFS_USER_H 13 14 #ifdef DEBUGFS 15 #include <stdio.h> 16 #include <stdlib.h> 17 #if EXT2_FLAT_INCLUDES 18 #include "ext2_fs.h" 19 #include "ext2fs.h" 20 #include "blkid.h" 21 #else 22 #include "ext2fs/ext2_fs.h" 23 #include "ext2fs/ext2fs.h" 24 #include "blkid/blkid.h" 25 #endif 26 #else 27 /* 28 * Pull in the definition of the e2fsck context structure 29 */ 30 #include "e2fsck.h" 31 #endif 32 33 struct buffer_head { 34 #ifdef DEBUGFS 35 ext2_filsys b_fs; 36 #else 37 e2fsck_t b_ctx; 38 #endif 39 io_channel b_io; 40 int b_size; 41 int b_err; 42 unsigned int b_dirty:1; 43 unsigned int b_uptodate:1; 44 unsigned long long b_blocknr; 45 char b_data[1024]; 46 }; 47 48 struct inode { 49 #ifdef DEBUGFS 50 ext2_filsys i_fs; 51 #else 52 e2fsck_t i_ctx; 53 #endif 54 ext2_ino_t i_ino; 55 struct ext2_inode i_ext2; 56 }; 57 58 struct kdev_s { 59 #ifdef DEBUGFS 60 ext2_filsys k_fs; 61 #else 62 e2fsck_t k_ctx; 63 #endif 64 int k_dev; 65 }; 66 67 #define K_DEV_FS 1 68 #define K_DEV_JOURNAL 2 69 70 #define lock_buffer(bh) do {} while (0) 71 #define unlock_buffer(bh) do {} while (0) 72 #define buffer_req(bh) 1 73 #define do_readahead(journal, start) do {} while (0) 74 75 typedef struct { 76 int object_length; 77 } lkmem_cache_t; 78 79 #define kmem_cache_alloc(cache, flags) malloc((cache)->object_length) 80 #define kmem_cache_free(cache, obj) free(obj) 81 #define kmem_cache_create(name, len, a, b, c) do_cache_create(len) 82 #define kmem_cache_destroy(cache) do_cache_destroy(cache) 83 #define kmalloc(len, flags) malloc(len) 84 #define kfree(p) free(p) 85 86 #define cond_resched() do { } while (0) 87 88 #define __init 89 90 /* 91 * Now pull in the real linux/jfs.h definitions. 92 */ 93 #include <ext2fs/kernel-jbd.h> 94 95 /* 96 * We use the standard libext2fs portability tricks for inline 97 * functions. 98 */ 99 #ifdef NO_INLINE_FUNCS 100 extern lkmem_cache_t *do_cache_create(int len); 101 extern void do_cache_destroy(lkmem_cache_t *cache); 102 extern size_t journal_tag_bytes(journal_t *journal); 103 #endif 104 105 #if (defined(E2FSCK_INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS)) 106 #ifdef E2FSCK_INCLUDE_INLINE_FUNCS 107 #if (__STDC_VERSION__ >= 199901L) 108 #define _INLINE_ extern inline 109 #else 110 #define _INLINE_ inline 111 #endif 112 #else /* !E2FSCK_INCLUDE_INLINE FUNCS */ 113 #if (__STDC_VERSION__ >= 199901L) 114 #define _INLINE_ inline 115 #else /* not C99 */ 116 #ifdef __GNUC__ 117 #define _INLINE_ extern __inline__ 118 #else /* For Watcom C */ 119 #define _INLINE_ extern inline 120 #endif /* __GNUC__ */ 121 #endif /* __STDC_VERSION__ >= 199901L */ 122 #endif /* E2FSCK_INCLUDE_INLINE_FUNCS */ 123 124 125 _INLINE_ lkmem_cache_t *do_cache_create(int len) 126 { 127 lkmem_cache_t *new_cache; 128 129 new_cache = malloc(sizeof(*new_cache)); 130 if (new_cache) 131 new_cache->object_length = len; 132 return new_cache; 133 } 134 135 _INLINE_ void do_cache_destroy(lkmem_cache_t *cache) 136 { 137 free(cache); 138 } 139 140 #undef _INLINE_ 141 #endif 142 143 /* 144 * Kernel compatibility functions are defined in journal.c 145 */ 146 int journal_bmap(journal_t *journal, blk64_t block, unsigned long long *phys); 147 struct buffer_head *getblk(kdev_t ctx, blk64_t blocknr, int blocksize); 148 int sync_blockdev(kdev_t kdev); 149 void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]); 150 void mark_buffer_dirty(struct buffer_head *bh); 151 void mark_buffer_uptodate(struct buffer_head *bh, int val); 152 void brelse(struct buffer_head *bh); 153 int buffer_uptodate(struct buffer_head *bh); 154 void wait_on_buffer(struct buffer_head *bh); 155 156 /* 157 * Define newer 2.5 interfaces 158 */ 159 #define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize) 160 #define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1) 161 162 #ifdef DEBUGFS 163 #include <assert.h> 164 #undef J_ASSERT 165 #define J_ASSERT(x) assert(x) 166 167 #define JSB_HAS_INCOMPAT_FEATURE(jsb, mask) \ 168 ((jsb)->s_header.h_blocktype == ext2fs_cpu_to_be32(JFS_SUPERBLOCK_V2) && \ 169 ((jsb)->s_feature_incompat & ext2fs_cpu_to_be32((mask)))) 170 #else /* !DEBUGFS */ 171 172 extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */ 173 174 #define J_ASSERT(assert) \ 175 do { if (!(assert)) { \ 176 printf ("Assertion failure in %s() at %s line %d: " \ 177 "\"%s\"\n", \ 178 __FUNCTION__, __FILE__, __LINE__, # assert); \ 179 fatal_error(e2fsck_global_ctx, 0); \ 180 } } while (0) 181 182 #endif /* DEBUGFS */ 183 184 #ifndef EFSBADCRC 185 #define EFSBADCRC EXT2_ET_BAD_CRC 186 #endif 187 #ifndef EFSCORRUPTED 188 #define EFSCORRUPTED EXT2_ET_FILESYSTEM_CORRUPTED 189 #endif 190 191 /* recovery.c */ 192 extern int journal_recover (journal_t *journal); 193 extern int journal_skip_recovery (journal_t *); 194 195 /* revoke.c */ 196 extern int journal_init_revoke(journal_t *, int); 197 extern void journal_destroy_revoke(journal_t *); 198 extern void journal_destroy_revoke_caches(void); 199 extern int journal_init_revoke_caches(void); 200 201 extern int journal_set_revoke(journal_t *, unsigned long long, tid_t); 202 extern int journal_test_revoke(journal_t *, unsigned long long, tid_t); 203 extern void journal_clear_revoke(journal_t *); 204 205 #endif /* _JFS_USER_H */ 206
