* GNU General Public License version 2 or at your discretion
* any later version.
*/
+#ifndef _JFS_USER_H
+#define _JFS_USER_H
+#ifdef DEBUGFS
+#include <stdio.h>
+#include <stdlib.h>
+#if EXT2_FLAT_INCLUDES
+#include "ext2_fs.h"
+#include "ext2fs.h"
+#include "blkid.h"
+#else
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+#include "blkid/blkid.h"
+#endif
+#else
/*
* Pull in the definition of the e2fsck context structure
*/
+#include "config.h"
#include "e2fsck.h"
+#endif
+
+#if __STDC_VERSION__ < 199901L
+# if __GNUC__ >= 2 || _MSC_VER >= 1300
+# define __func__ __FUNCTION__
+# else
+# define __func__ "<unknown>"
+# endif
+#endif
struct buffer_head {
+#ifdef DEBUGFS
+ ext2_filsys b_fs;
+#else
e2fsck_t b_ctx;
- io_channel b_io;
- int b_size;
+#endif
+ io_channel b_io;
+ int b_size;
+ int b_err;
+ unsigned int b_dirty:1;
+ unsigned int b_uptodate:1;
unsigned long long b_blocknr;
- int b_dirty;
- int b_uptodate;
- int b_err;
char b_data[1024];
};
struct inode {
+#ifdef DEBUGFS
+ ext2_filsys i_fs;
+#else
e2fsck_t i_ctx;
+#endif
ext2_ino_t i_ino;
struct ext2_inode i_ext2;
};
struct kdev_s {
+#ifdef DEBUGFS
+ ext2_filsys k_fs;
+#else
e2fsck_t k_ctx;
+#endif
int k_dev;
};
#define K_DEV_FS 1
#define K_DEV_JOURNAL 2
-typedef struct kdev_s *kdev_t;
-
-#define lock_buffer(bh) do {} while(0)
-#define unlock_buffer(bh) do {} while(0)
+#define lock_buffer(bh) do {} while (0)
+#define unlock_buffer(bh) do {} while (0)
#define buffer_req(bh) 1
-#define do_readahead(journal, start) do {} while(0)
-
-extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+#define do_readahead(journal, start) do {} while (0)
typedef struct {
int object_length;
} lkmem_cache_t;
-#define kmem_cache_alloc(cache,flags) malloc((cache)->object_length)
-#define kmem_cache_free(cache,obj) free(obj)
-#define kmem_cache_create(name,len,a,b,c,d) do_cache_create(len)
+#define kmem_cache_alloc(cache, flags) malloc((cache)->object_length)
+#define kmem_cache_free(cache, obj) free(obj)
+#define kmem_cache_create(name, len, a, b, c) do_cache_create(len)
#define kmem_cache_destroy(cache) do_cache_destroy(cache)
-#define kmalloc(len,flags) malloc(len)
+#define kmalloc(len, flags) malloc(len)
#define kfree(p) free(p)
#define cond_resched() do { } while (0)
-typedef unsigned int __be32;
-typedef __u64 __be64;
-
#define __init
/*
* functions.
*/
#ifdef NO_INLINE_FUNCS
-extern lkmem_cache_t * do_cache_create(int len);
+extern lkmem_cache_t *do_cache_create(int len);
extern void do_cache_destroy(lkmem_cache_t *cache);
extern size_t journal_tag_bytes(journal_t *journal);
+extern __u32 __hash_32(__u32 val);
+extern __u32 hash_32(__u32 val, unsigned int bits);
+extern __u32 hash_64(__u64 val, unsigned int bits);
#endif
#if (defined(E2FSCK_INCLUDE_INLINE_FUNCS) || !defined(NO_INLINE_FUNCS))
#endif /* __STDC_VERSION__ >= 199901L */
#endif /* E2FSCK_INCLUDE_INLINE_FUNCS */
-
-_INLINE_ lkmem_cache_t * do_cache_create(int len)
+_INLINE_ lkmem_cache_t *do_cache_create(int len)
{
lkmem_cache_t *new_cache;
+
new_cache = malloc(sizeof(*new_cache));
if (new_cache)
new_cache->object_length = len;
free(cache);
}
+/* generic hashing taken from the Linux kernel */
+#define GOLDEN_RATIO_32 0x61C88647
+#define GOLDEN_RATIO_64 0x61C8864680B583EBull
+
+_INLINE_ __u32 __hash_32(__u32 val)
+{
+ return val * GOLDEN_RATIO_32;
+}
+
+_INLINE_ __u32 hash_32(__u32 val, unsigned int bits)
+{
+ /* High bits are more random, so use them. */
+ return __hash_32(val) >> (32 - bits);
+}
+
+_INLINE_ __u32 hash_64(__u64 val, unsigned int bits)
+{
+ if (sizeof(long) >= 8) {
+ /* 64x64-bit multiply is efficient on all 64-bit processors */
+ return val * GOLDEN_RATIO_64 >> (64 - bits);
+ } else {
+ /* Hash 64 bits using only 32x32-bit multiply. */
+ return hash_32((__u32)val ^ __hash_32(val >> 32), bits);
+ }
+}
+
#undef _INLINE_
#endif
/*
* Kernel compatibility functions are defined in journal.c
*/
-int journal_bmap(journal_t *journal, blk64_t block, unsigned long long *phys);
+int jbd2_journal_bmap(journal_t *journal, blk64_t block,
+ unsigned long long *phys);
struct buffer_head *getblk(kdev_t ctx, blk64_t blocknr, int blocksize);
-void sync_blockdev(kdev_t kdev);
-void ll_rw_block(int rw, int dummy, struct buffer_head *bh[]);
+int sync_blockdev(kdev_t kdev);
+void ll_rw_block(int rw, int op_flags, int nr, struct buffer_head *bh[]);
void mark_buffer_dirty(struct buffer_head *bh);
void mark_buffer_uptodate(struct buffer_head *bh, int val);
void brelse(struct buffer_head *bh);
*/
#define __getblk(dev, blocknr, blocksize) getblk(dev, blocknr, blocksize)
#define set_buffer_uptodate(bh) mark_buffer_uptodate(bh, 1)
+
+#ifdef DEBUGFS
+#include <assert.h>
+#undef J_ASSERT
+#define J_ASSERT(x) assert(x)
+
+#define JSB_HAS_INCOMPAT_FEATURE(jsb, mask) \
+ ((jsb)->s_header.h_blocktype == ext2fs_cpu_to_be32(JBD2_SUPERBLOCK_V2) && \
+ ((jsb)->s_feature_incompat & ext2fs_cpu_to_be32((mask))))
+#else /* !DEBUGFS */
+
+extern e2fsck_t e2fsck_global_ctx; /* Try your very best not to use this! */
+
+#define J_ASSERT(assert) \
+ do { if (!(assert)) { \
+ printf ("Assertion failure in %s() at %s line %d: " \
+ "\"%s\"\n", \
+ __func__, __FILE__, __LINE__, # assert); \
+ fatal_error(e2fsck_global_ctx, 0); \
+ } } while (0)
+
+#endif /* DEBUGFS */
+
+#ifndef EFSBADCRC
+#define EFSBADCRC EXT2_ET_BAD_CRC
+#endif
+#ifndef EFSCORRUPTED
+#define EFSCORRUPTED EXT2_ET_FILESYSTEM_CORRUPTED
+#endif
+
+static inline void jbd2_descriptor_block_csum_set(journal_t *j,
+ struct buffer_head *bh)
+{
+ struct jbd2_journal_block_tail *tail;
+ __u32 csum;
+
+ if (!jbd2_journal_has_csum_v2or3(j))
+ return;
+
+ tail = (struct jbd2_journal_block_tail *)(bh->b_data + j->j_blocksize -
+ sizeof(struct jbd2_journal_block_tail));
+ tail->t_checksum = 0;
+ csum = jbd2_chksum(j, j->j_csum_seed, bh->b_data, j->j_blocksize);
+ tail->t_checksum = cpu_to_be32(csum);
+}
+
+/* recovery.c */
+extern int jbd2_journal_recover (journal_t *journal);
+extern int jbd2_journal_skip_recovery (journal_t *);
+
+/* revoke.c */
+extern int jbd2_journal_init_revoke(journal_t *, int);
+extern void jbd2_journal_destroy_revoke(journal_t *);
+extern void jbd2_journal_destroy_revoke_caches(void);
+extern int jbd2_journal_init_revoke_caches(void);
+
+extern int jbd2_journal_set_revoke(journal_t *, unsigned long long, tid_t);
+extern int jbd2_journal_test_revoke(journal_t *, unsigned long long, tid_t);
+extern void jbd2_journal_clear_revoke(journal_t *);
+
+#endif /* _JFS_USER_H */
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff