2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
5 * GRUB 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 3 of the License, or
8 * (at your option) any later version.
10 * GRUB 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.
15 * You should have received a copy of the GNU General Public License
16 * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
19 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
20 * Use is subject to license terms.
23 #ifndef _SYS_DSL_DATASET_H
24 #define _SYS_DSL_DATASET_H
26 typedef struct dsl_dataset_phys
{
27 grub_uint64_t ds_dir_obj
;
28 grub_uint64_t ds_prev_snap_obj
;
29 grub_uint64_t ds_prev_snap_txg
;
30 grub_uint64_t ds_next_snap_obj
;
31 grub_uint64_t ds_snapnames_zapobj
; /* zap obj of snaps; ==0 for snaps */
32 grub_uint64_t ds_num_children
; /* clone/snap children; ==0 for head */
33 grub_uint64_t ds_creation_time
; /* seconds since 1970 */
34 grub_uint64_t ds_creation_txg
;
35 grub_uint64_t ds_deadlist_obj
;
36 grub_uint64_t ds_used_bytes
;
37 grub_uint64_t ds_compressed_bytes
;
38 grub_uint64_t ds_uncompressed_bytes
;
39 grub_uint64_t ds_unique_bytes
; /* only relevant to snapshots */
41 * The ds_fsid_guid is a 56-bit ID that can change to avoid
42 * collisions. The ds_guid is a 64-bit ID that will never
43 * change, so there is a small probability that it will collide.
45 grub_uint64_t ds_fsid_guid
;
46 grub_uint64_t ds_guid
;
47 grub_uint64_t ds_flags
;
49 grub_uint64_t ds_pad
[8]; /* pad out to 320 bytes for good measure */
52 #endif /* _SYS_DSL_DATASET_H */