mirror of
https://github.com/torvalds/linux.git
synced 2024-11-30 16:11:38 +00:00
7b71876980
boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/*
|
|
* 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 __XFS_LOG_RECOVER_H__
|
|
#define __XFS_LOG_RECOVER_H__
|
|
|
|
/*
|
|
* Macros, structures, prototypes for internal log manager use.
|
|
*/
|
|
|
|
#define XLOG_RHASH_BITS 4
|
|
#define XLOG_RHASH_SIZE 16
|
|
#define XLOG_RHASH_SHIFT 2
|
|
#define XLOG_RHASH(tid) \
|
|
((((__uint32_t)tid)>>XLOG_RHASH_SHIFT) & (XLOG_RHASH_SIZE-1))
|
|
|
|
#define XLOG_MAX_REGIONS_IN_ITEM (XFS_MAX_BLOCKSIZE / XFS_BLI_CHUNK / 2 + 1)
|
|
|
|
|
|
/*
|
|
* item headers are in ri_buf[0]. Additional buffers follow.
|
|
*/
|
|
typedef struct xlog_recover_item {
|
|
struct xlog_recover_item *ri_next;
|
|
struct xlog_recover_item *ri_prev;
|
|
int ri_type;
|
|
int ri_cnt; /* count of regions found */
|
|
int ri_total; /* total regions */
|
|
xfs_log_iovec_t *ri_buf; /* ptr to regions buffer */
|
|
} xlog_recover_item_t;
|
|
|
|
struct xlog_tid;
|
|
typedef struct xlog_recover {
|
|
struct xlog_recover *r_next;
|
|
xlog_tid_t r_log_tid; /* log's transaction id */
|
|
xfs_trans_header_t r_theader; /* trans header for partial */
|
|
int r_state; /* not needed */
|
|
xfs_lsn_t r_lsn; /* xact lsn */
|
|
xlog_recover_item_t *r_itemq; /* q for items */
|
|
} xlog_recover_t;
|
|
|
|
#define ITEM_TYPE(i) (*(ushort *)(i)->ri_buf[0].i_addr)
|
|
|
|
/*
|
|
* This is the number of entries in the l_buf_cancel_table used during
|
|
* recovery.
|
|
*/
|
|
#define XLOG_BC_TABLE_SIZE 64
|
|
|
|
#define XLOG_RECOVER_PASS1 1
|
|
#define XLOG_RECOVER_PASS2 2
|
|
|
|
#endif /* __XFS_LOG_RECOVER_H__ */
|