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- /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 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.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
- #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 */
- } 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 unlikely(x) (x)
- #define min(a,b) ((a) < (b) ? (a) : (b))
-
- #if (__GNUC__ < 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ <= 95))
- # define xlog_warn(fmt,args...) \
- ( fprintf(stderr,fmt,## args), fputc('\n', stderr) )
- # define cmn_err(sev,fmt,args...) \
- xlog_warn(fmt,## args)
- # define xlog_exit(fmt,args...) \
- ( xlog_warn(fmt,## args), exit(1) )
- # define xlog_panic(fmt,args...) \
- xlog_exit(fmt,## args)
- #else
- # define xlog_warn(...) \
- ( fprintf(stderr,__VA_ARGS__), fputc('\n', stderr) )
- # define cmn_err(sev,...) \
- xlog_warn(__VA_ARGS__)
- # define xlog_exit(...) \
- ( xlog_warn(__VA_ARGS__), exit(1) )
- # define xlog_panic(...) \
- xlog_exit(__VA_ARGS__)
- #endif
-
- #define xlog_get_bp(log,bbs) libxfs_getbuf(x.logdev, 0, (bbs))
- #define xlog_put_bp(bp) libxfs_putbuf(bp)
- #define xlog_bread(log,blkno,bbs,bp) \
- (libxfs_readbufr(x.logdev, \
- (log)->l_logBBstart+(blkno), bp, (bbs), 1), 0)
- #define xlog_align(log,blkno,nbblks,bp) XFS_BUF_PTR(bp)
-
- #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 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 */
-