projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 | 1 | /* |
| 7b718769 NS |
2 | * Copyright (c) 2000,2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. | |
| 1da177e4 | 4 | * |
| 7b718769 NS |
5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as | |
| 1da177e4 LT |
7 | * published by the Free Software Foundation. |
| 8 | * | |
| 7b718769 NS |
9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 1da177e4 | 13 | * |
| 7b718769 NS |
14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, | |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 1da177e4 LT |
17 | */ |
| 18 | #ifndef __XFS_LOG_RECOVER_H__ | |
| 19 | #define __XFS_LOG_RECOVER_H__ | |
| 20 | ||
| 21 | /* | |
| 22 | * Macros, structures, prototypes for internal log manager use. | |
| 23 | */ | |
| 24 | ||
| 25 | #define XLOG_RHASH_BITS 4 | |
| 26 | #define XLOG_RHASH_SIZE 16 | |
| 27 | #define XLOG_RHASH_SHIFT 2 | |
| 28 | #define XLOG_RHASH(tid) \ | |
| 29 | ((((__uint32_t)tid)>>XLOG_RHASH_SHIFT) & (XLOG_RHASH_SIZE-1)) | |
| 30 | ||
| c1155410 | 31 | #define XLOG_MAX_REGIONS_IN_ITEM (XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK / 2 + 1) |
| 1da177e4 LT |
32 | |
| 33 | ||
| 34 | /* | |
| 35 | * item headers are in ri_buf[0]. Additional buffers follow. | |
| 36 | */ | |
| 37 | typedef struct xlog_recover_item { | |
| f0a76953 DC |
38 | struct list_head ri_list; |
| 39 | int ri_type; | |
| 40 | int ri_cnt; /* count of regions found */ | |
| 41 | int ri_total; /* total regions */ | |
| 42 | xfs_log_iovec_t *ri_buf; /* ptr to regions buffer */ | |
| 1da177e4 LT |
43 | } xlog_recover_item_t; |
| 44 | ||
| 45 | struct xlog_tid; | |
| 46 | typedef struct xlog_recover { | |
| f0a76953 DC |
47 | struct hlist_node r_list; |
| 48 | xlog_tid_t r_log_tid; /* log's transaction id */ | |
| 49 | xfs_trans_header_t r_theader; /* trans header for partial */ | |
| 50 | int r_state; /* not needed */ | |
| 51 | xfs_lsn_t r_lsn; /* xact lsn */ | |
| 52 | struct list_head r_itemq; /* q for items */ | |
| 1da177e4 LT |
53 | } xlog_recover_t; |
| 54 | ||
| 55 | #define ITEM_TYPE(i) (*(ushort *)(i)->ri_buf[0].i_addr) | |
| 56 | ||
| 57 | /* | |
| 58 | * This is the number of entries in the l_buf_cancel_table used during | |
| 59 | * recovery. | |
| 60 | */ | |
| 61 | #define XLOG_BC_TABLE_SIZE 64 | |
| 62 | ||
| 63 | #define XLOG_RECOVER_PASS1 1 | |
| 64 | #define XLOG_RECOVER_PASS2 2 | |
| 65 | ||
| 66 | #endif /* __XFS_LOG_RECOVER_H__ */ |