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 */ 104 105 106 _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 */ 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
