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 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 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