mirror of https://gitee.com/openkylin/linux.git
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_LOG_RECOVER_H__
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#define __XFS_LOG_RECOVER_H__
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/*
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* Macros, structures, prototypes for internal log manager use.
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*/
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#define XLOG_RHASH_BITS 4
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#define XLOG_RHASH_SIZE 16
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#define XLOG_RHASH_SHIFT 2
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#define XLOG_RHASH(tid) \
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((((uint32_t)tid)>>XLOG_RHASH_SHIFT) & (XLOG_RHASH_SIZE-1))
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#define XLOG_MAX_REGIONS_IN_ITEM (XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK / 2 + 1)
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/*
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* item headers are in ri_buf[0]. Additional buffers follow.
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*/
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typedef struct xlog_recover_item {
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struct list_head ri_list;
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int ri_type;
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int ri_cnt; /* count of regions found */
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int ri_total; /* total regions */
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xfs_log_iovec_t *ri_buf; /* ptr to regions buffer */
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} xlog_recover_item_t;
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typedef struct xlog_recover {
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struct hlist_node r_list;
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xlog_tid_t r_log_tid; /* log's transaction id */
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xfs_trans_header_t r_theader; /* trans header for partial */
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int r_state; /* not needed */
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xfs_lsn_t r_lsn; /* xact lsn */
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struct list_head r_itemq; /* q for items */
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} xlog_recover_t;
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#define ITEM_TYPE(i) (*(unsigned short *)(i)->ri_buf[0].i_addr)
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/*
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* This is the number of entries in the l_buf_cancel_table used during
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* recovery.
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*/
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#define XLOG_BC_TABLE_SIZE 64
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#define XLOG_RECOVER_CRCPASS 0
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#define XLOG_RECOVER_PASS1 1
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#define XLOG_RECOVER_PASS2 2
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#endif /* __XFS_LOG_RECOVER_H__ */
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