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/*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef LIBXLOG_H
#define LIBXLOG_H
#include <xfs/libxfs.h>
/*
* define the userlevel xlog_t to be the subset of the kernel's
* xlog_t that we actually need to get our work done, avoiding
* the need to define any exotic kernel types in userland.
*/
typedef struct log {
xfs_lsn_t l_tail_lsn; /* lsn of 1st LR w/ unflush buffers */
xfs_lsn_t l_last_sync_lsn;/* lsn of last LR on disk */
xfs_mount_t *l_mp; /* mount point */
dev_t l_dev; /* dev_t of log */
xfs_daddr_t l_logBBstart; /* start block of log */
int l_logsize; /* size of log in bytes */
int l_logBBsize; /* size of log in 512 byte chunks */
int l_curr_cycle; /* Cycle number of log writes */
int l_prev_cycle; /* Cycle # b4 last block increment */
int l_curr_block; /* current logical block of log */
int l_prev_block; /* previous logical block of log */
int l_iclog_size; /* size of log in bytes */
int l_iclog_size_log;/* log power size of log */
int l_iclog_bufs; /* number of iclog buffers */
int l_grant_reserve_cycle; /* */
int l_grant_reserve_bytes; /* */
int l_grant_write_cycle; /* */
int l_grant_write_bytes; /* */
uint l_sectbb_log; /* log2 of sector size in bbs */
uint l_sectbb_mask; /* sector size (in BBs)
* alignment mask */
} xlog_t;
#include <xfs/xfs_log_recover.h>
#include <xfs/xfs_buf_item.h>
#include <xfs/xfs_inode_item.h>
#include <xfs/xfs_extfree_item.h>
typedef union {
xlog_rec_header_t hic_header;
xlog_rec_ext_header_t hic_xheader;
char hic_sector[XLOG_HEADER_SIZE];
} xlog_in_core_2_t;
/*
* macros mapping kernel code to user code
*/
#ifndef EFSCORRUPTED
#define EFSCORRUPTED 990
#endif
#define STATIC static
#define XFS_ERROR(e) (e)
#ifdef DEBUG
#define XFS_ERROR_REPORT(e,l,mp) fprintf(stderr, "ERROR: %s\n", e)
#else
#define XFS_ERROR_REPORT(e,l,mp) ((void) 0)
#endif
#define XFS_CORRUPTION_ERROR(e,l,mp,m) ((void) 0)
#define XFS_MOUNT_WAS_CLEAN 0x1
#define unlikely(x) (x)
#define min(a,b) ((a) < (b) ? (a) : (b))
extern void xlog_warn(char *fmt,...);
extern void xlog_exit(char *fmt,...);
extern void xlog_panic(char *fmt,...);
#define kmem_zalloc(size, foo) calloc(size,1)
#define kmem_alloc(size, foo) calloc(size,1)
#define kmem_free(ptr, foo) free(ptr)
#define kmem_realloc(ptr, len, old, foo) realloc(ptr, len)
/* exports */
extern int print_exit;
extern int print_skip_uuid;
extern int print_record_header;
/* libxfs parameters */
extern libxfs_init_t x;
extern struct xfs_buf *xlog_get_bp(xlog_t *, int);
extern void xlog_put_bp(struct xfs_buf *);
extern int xlog_bread(xlog_t *, xfs_daddr_t, int, struct xfs_buf *);
extern int xlog_find_zeroed(xlog_t *log, xfs_daddr_t *blk_no);
extern int xlog_find_cycle_start(xlog_t *log, xfs_buf_t *bp,
xfs_daddr_t first_blk, xfs_daddr_t *last_blk, uint cycle);
extern int xlog_find_tail(xlog_t *log, xfs_daddr_t *head_blk,
xfs_daddr_t *tail_blk, int readonly);
extern int xlog_test_footer(xlog_t *log);
extern int xlog_recover(xlog_t *log, int readonly);
extern void xlog_recover_print_data(xfs_caddr_t p, int len);
extern void xlog_recover_print_logitem(xlog_recover_item_t *item);
extern void xlog_recover_print_trans_head(xlog_recover_t *tr);
extern int xlog_print_find_oldest(xlog_t *log, xfs_daddr_t *last_blk);
/* for transactional view */
extern void xlog_recover_print_trans_head(xlog_recover_t *tr);
extern void xlog_recover_print_trans( xlog_recover_t *trans,
xlog_recover_item_t *itemq,
int print);
extern int xlog_do_recovery_pass( xlog_t *log,
xfs_daddr_t head_blk,
xfs_daddr_t tail_blk,
int pass);
extern int xlog_recover_do_trans( xlog_t *log,
xlog_recover_t *trans,
int pass);
extern int xlog_header_check_recover( xfs_mount_t *mp,
xlog_rec_header_t *head);
extern int xlog_header_check_mount( xfs_mount_t *mp,
xlog_rec_header_t *head);
#endif /* LIBXLOG_H */
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