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 typedef struct dsl_dataset_phys { 28 uint64_t ds_dir_obj; 29 uint64_t ds_prev_snap_obj; 30 uint64_t ds_prev_snap_txg; 31 uint64_t ds_next_snap_obj; 32 uint64_t ds_snapnames_zapobj; /* zap obj of snaps; ==0 for snaps */ 33 uint64_t ds_num_children; /* clone/snap children; ==0 for head */ 34 uint64_t ds_creation_time; /* seconds since 1970 */ 35 uint64_t ds_creation_txg; 36 uint64_t ds_deadlist_obj; 37 uint64_t ds_used_bytes; 38 uint64_t ds_compressed_bytes; 39 uint64_t ds_uncompressed_bytes; 40 uint64_t ds_unique_bytes; /* only relevant to snapshots */ 41 /* 42 * The ds_fsid_guid is a 56-bit ID that can change to avoid 43 * collisions. The ds_guid is a 64-bit ID that will never 44 * change, so there is a small probability that it will collide. 45 */ 46 uint64_t ds_fsid_guid; 47 uint64_t ds_guid; 48 uint64_t ds_flags; 49 blkptr_t ds_bp; 50 uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */ 51 } dsl_dataset_phys_t; 52 53 #endif /* _SYS_DSL_DATASET_H */ 54