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, see <http://www.gnu.org/licenses/>.
17  */
18 /*
19  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
20  * Use is subject to license terms.
21  */
22 
23 #ifndef	_SYS_DSL_DATASET_H
24 #define	_SYS_DSL_DATASET_H
25 
26 #pragma ident	"%Z%%M%	%I%	%E% SMI"
27 
28 typedef struct dsl_dataset_phys {
29 	uint64_t ds_dir_obj;
30 	uint64_t ds_prev_snap_obj;
31 	uint64_t ds_prev_snap_txg;
32 	uint64_t ds_next_snap_obj;
33 	uint64_t ds_snapnames_zapobj;	/* zap obj of snaps; ==0 for snaps */
34 	uint64_t ds_num_children;	/* clone/snap children; ==0 for head */
35 	uint64_t ds_creation_time;	/* seconds since 1970 */
36 	uint64_t ds_creation_txg;
37 	uint64_t ds_deadlist_obj;
38 	uint64_t ds_used_bytes;
39 	uint64_t ds_compressed_bytes;
40 	uint64_t ds_uncompressed_bytes;
41 	uint64_t ds_unique_bytes;	/* only relevant to snapshots */
42 	/*
43 	 * The ds_fsid_guid is a 56-bit ID that can change to avoid
44 	 * collisions.  The ds_guid is a 64-bit ID that will never
45 	 * change, so there is a small probability that it will collide.
46 	 */
47 	uint64_t ds_fsid_guid;
48 	uint64_t ds_guid;
49 	uint64_t ds_flags;
50 	blkptr_t ds_bp;
51 	uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */
52 } dsl_dataset_phys_t;
53 
54 #endif /* _SYS_DSL_DATASET_H */
55