1/*
2 *  GRUB  --  GRand Unified Bootloader
3 *  Copyright (C) 1999,2000,2001,2002,2003,2004  Free Software Foundation, Inc.
4 *
5 *  This program is free software; you can redistribute it and/or modify
6 *  it under the terms of the GNU General Public License as published by
7 *  the Free Software Foundation; either version 2 of the License, or
8 *  (at your option) any later version.
9 *
10 *  This program is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 *  GNU General Public License for more details.
14 *
15 *  You should have received a copy of the GNU General Public License
16 *  along with this program; if not, write to the Free Software
17 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19/*
20 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
21 * Use is subject to license terms.
22 */
23
24#ifndef	_SYS_DSL_DATASET_H
25#define	_SYS_DSL_DATASET_H
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29typedef struct dsl_dataset_phys {
30	uint64_t ds_dir_obj;
31	uint64_t ds_prev_snap_obj;
32	uint64_t ds_prev_snap_txg;
33	uint64_t ds_next_snap_obj;
34	uint64_t ds_snapnames_zapobj;	/* zap obj of snaps; ==0 for snaps */
35	uint64_t ds_num_children;	/* clone/snap children; ==0 for head */
36	uint64_t ds_creation_time;	/* seconds since 1970 */
37	uint64_t ds_creation_txg;
38	uint64_t ds_deadlist_obj;
39	uint64_t ds_used_bytes;
40	uint64_t ds_compressed_bytes;
41	uint64_t ds_uncompressed_bytes;
42	uint64_t ds_unique_bytes;	/* only relevant to snapshots */
43	/*
44	 * The ds_fsid_guid is a 56-bit ID that can change to avoid
45	 * collisions.  The ds_guid is a 64-bit ID that will never
46	 * change, so there is a small probability that it will collide.
47	 */
48	uint64_t ds_fsid_guid;
49	uint64_t ds_guid;
50	uint64_t ds_flags;
51	blkptr_t ds_bp;
52	uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */
53} dsl_dataset_phys_t;
54
55#endif /* _SYS_DSL_DATASET_H */
56