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- /*
- * GRUB -- GRand Unified Bootloader
- * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
- /*
- * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
- */
- #ifndef _SYS_ZIL_H
- #define _SYS_ZIL_H
- /*
- * Intent log format:
- *
- * Each objset has its own intent log. The log header (zil_header_t)
- * for objset N's intent log is kept in the Nth object of the SPA's
- * intent_log objset. The log header points to a chain of log blocks,
- * each of which contains log records (i.e., transactions) followed by
- * a log block trailer (zil_trailer_t). The format of a log record
- * depends on the record (or transaction) type, but all records begin
- * with a common structure that defines the type, length, and txg.
- */
- /*
- * Intent log header - this on disk structure holds fields to manage
- * the log. All fields are 64 bit to easily handle cross architectures.
- */
- typedef struct zil_header {
- uint64_t zh_claim_txg; /* txg in which log blocks were claimed */
- uint64_t zh_replay_seq; /* highest replayed sequence number */
- blkptr_t zh_log; /* log chain */
- uint64_t zh_claim_seq; /* highest claimed sequence number */
- uint64_t zh_flags; /* header flags */
- uint64_t zh_pad[4];
- } zil_header_t;
- /*
- * zh_flags bit settings
- */
- #define ZIL_REPLAY_NEEDED 0x1 /* replay needed - internal only */
- #endif /* _SYS_ZIL_H */
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