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