2 * Copyright (c) 2000-2005 Silicon Graphics, Inc.All Rights Reserved.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it would be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write the Free Software Foundation,
15 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <xfs/libxfs.h>
23 * define the userlevel xlog_t to be the subset of the kernel's
24 * xlog_t that we actually need to get our work done, avoiding
25 * the need to define any exotic kernel types in userland.
28 xfs_lsn_t l_tail_lsn
; /* lsn of 1st LR w/ unflush buffers */
29 xfs_lsn_t l_last_sync_lsn
;/* lsn of last LR on disk */
30 xfs_mount_t
*l_mp
; /* mount point */
31 dev_t l_dev
; /* dev_t of log */
32 xfs_daddr_t l_logBBstart
; /* start block of log */
33 int l_logsize
; /* size of log in bytes */
34 int l_logBBsize
; /* size of log in 512 byte chunks */
35 int l_curr_cycle
; /* Cycle number of log writes */
36 int l_prev_cycle
; /* Cycle # b4 last block increment */
37 int l_curr_block
; /* current logical block of log */
38 int l_prev_block
; /* previous logical block of log */
39 int l_iclog_size
; /* size of log in bytes */
40 int l_iclog_size_log
;/* log power size of log */
41 int l_iclog_bufs
; /* number of iclog buffers */
42 int l_grant_reserve_cycle
; /* */
43 int l_grant_reserve_bytes
; /* */
44 int l_grant_write_cycle
; /* */
45 int l_grant_write_bytes
; /* */
46 uint l_sectbb_log
; /* log2 of sector size in bbs */
47 uint l_sectbb_mask
; /* sector size (in BBs)
51 #include <xfs/xfs_log_recover.h>
52 #include <xfs/xfs_buf_item.h>
53 #include <xfs/xfs_inode_item.h>
54 #include <xfs/xfs_extfree_item.h>
57 xlog_rec_header_t hic_header
;
58 xlog_rec_ext_header_t hic_xheader
;
59 char hic_sector
[XLOG_HEADER_SIZE
];
63 * macros mapping kernel code to user code
66 #define EFSCORRUPTED 990
69 #define XFS_ERROR(e) (e)
71 #define XFS_ERROR_REPORT(e,l,mp) fprintf(stderr, "ERROR: %s\n", e)
73 #define XFS_ERROR_REPORT(e,l,mp) ((void) 0)
75 #define XFS_CORRUPTION_ERROR(e,l,mp,m) ((void) 0)
76 #define XFS_MOUNT_WAS_CLEAN 0x1
77 #define unlikely(x) (x)
78 #define min(a,b) ((a) < (b) ? (a) : (b))
80 extern void xlog_warn(char *fmt
,...);
81 extern void xlog_exit(char *fmt
,...);
82 extern void xlog_panic(char *fmt
,...);
84 #define kmem_zalloc(size, foo) calloc(size,1)
85 #define kmem_alloc(size, foo) calloc(size,1)
86 #define kmem_free(ptr, foo) free(ptr)
87 #define kmem_realloc(ptr, len, old, foo) realloc(ptr, len)
90 extern int print_exit
;
91 extern int print_skip_uuid
;
92 extern int print_record_header
;
94 /* libxfs parameters */
95 extern libxfs_init_t x
;
97 extern struct xfs_buf
*xlog_get_bp(xlog_t
*, int);
98 extern void xlog_put_bp(struct xfs_buf
*);
99 extern int xlog_bread(xlog_t
*, xfs_daddr_t
, int, struct xfs_buf
*);
101 extern int xlog_find_zeroed(xlog_t
*log
, xfs_daddr_t
*blk_no
);
102 extern int xlog_find_cycle_start(xlog_t
*log
, xfs_buf_t
*bp
,
103 xfs_daddr_t first_blk
, xfs_daddr_t
*last_blk
, uint cycle
);
104 extern int xlog_find_tail(xlog_t
*log
, xfs_daddr_t
*head_blk
,
105 xfs_daddr_t
*tail_blk
, int readonly
);
107 extern int xlog_test_footer(xlog_t
*log
);
108 extern int xlog_recover(xlog_t
*log
, int readonly
);
109 extern void xlog_recover_print_data(xfs_caddr_t p
, int len
);
110 extern void xlog_recover_print_logitem(xlog_recover_item_t
*item
);
111 extern void xlog_recover_print_trans_head(xlog_recover_t
*tr
);
112 extern int xlog_print_find_oldest(xlog_t
*log
, xfs_daddr_t
*last_blk
);
114 /* for transactional view */
115 extern void xlog_recover_print_trans_head(xlog_recover_t
*tr
);
117 extern void xlog_recover_print_trans( xlog_recover_t
*trans
,
118 xlog_recover_item_t
*itemq
,
121 extern int xlog_do_recovery_pass( xlog_t
*log
,
122 xfs_daddr_t head_blk
,
123 xfs_daddr_t tail_blk
,
125 extern int xlog_recover_do_trans( xlog_t
*log
,
126 xlog_recover_t
*trans
,
128 extern int xlog_header_check_recover( xfs_mount_t
*mp
,
129 xlog_rec_header_t
*head
);
130 extern int xlog_header_check_mount( xfs_mount_t
*mp
,
131 xlog_rec_header_t
*head
);
133 #endif /* LIBXLOG_H */