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Jorgen Lundman4d3c95f2012-07-19 20:48:25 +00001/*
2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
Jorgen Lundman4d3c95f2012-07-19 20:48:25 +00006 */
7/*
8 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
9 * Use is subject to license terms.
10 */
11
12#ifndef _SYS_DSL_DATASET_H
13#define _SYS_DSL_DATASET_H
14
15typedef struct dsl_dataset_phys {
16 uint64_t ds_dir_obj;
17 uint64_t ds_prev_snap_obj;
18 uint64_t ds_prev_snap_txg;
19 uint64_t ds_next_snap_obj;
20 uint64_t ds_snapnames_zapobj; /* zap obj of snaps; ==0 for snaps */
21 uint64_t ds_num_children; /* clone/snap children; ==0 for head */
22 uint64_t ds_creation_time; /* seconds since 1970 */
23 uint64_t ds_creation_txg;
24 uint64_t ds_deadlist_obj;
25 uint64_t ds_used_bytes;
26 uint64_t ds_compressed_bytes;
27 uint64_t ds_uncompressed_bytes;
28 uint64_t ds_unique_bytes; /* only relevant to snapshots */
29 /*
30 * The ds_fsid_guid is a 56-bit ID that can change to avoid
31 * collisions. The ds_guid is a 64-bit ID that will never
32 * change, so there is a small probability that it will collide.
33 */
34 uint64_t ds_fsid_guid;
35 uint64_t ds_guid;
36 uint64_t ds_flags;
37 blkptr_t ds_bp;
38 uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */
39} dsl_dataset_phys_t;
40
41#endif /* _SYS_DSL_DATASET_H */