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