diff options
Diffstat (limited to 'fs/xfs/libxfs/xfs_log_recover.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_log_recover.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h new file mode 100644 index 000000000..f3d18eaec --- /dev/null +++ b/fs/xfs/libxfs/xfs_log_recover.h @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2000,2005 Silicon Graphics, Inc. + * All Rights Reserved. + */ +#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_BLF_CHUNK / 2 + 1) + + +/* + * item headers are in ri_buf[0]. Additional buffers follow. + */ +typedef struct xlog_recover_item { + struct list_head ri_list; + 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; + +typedef struct xlog_recover { + struct hlist_node r_list; + 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 */ + struct list_head r_itemq; /* q for items */ +} xlog_recover_t; + +#define ITEM_TYPE(i) (*(unsigned short *)(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_CRCPASS 0 +#define XLOG_RECOVER_PASS1 1 +#define XLOG_RECOVER_PASS2 2 + +#endif /* __XFS_LOG_RECOVER_H__ */ |