1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * GRUB -- GRand Unified Bootloader 3*4882a593Smuzhiyun * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun /* 8*4882a593Smuzhiyun * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 9*4882a593Smuzhiyun * Use is subject to license terms. 10*4882a593Smuzhiyun */ 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #ifndef _SYS_DSL_DATASET_H 13*4882a593Smuzhiyun #define _SYS_DSL_DATASET_H 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun typedef struct dsl_dataset_phys { 16*4882a593Smuzhiyun uint64_t ds_dir_obj; 17*4882a593Smuzhiyun uint64_t ds_prev_snap_obj; 18*4882a593Smuzhiyun uint64_t ds_prev_snap_txg; 19*4882a593Smuzhiyun uint64_t ds_next_snap_obj; 20*4882a593Smuzhiyun uint64_t ds_snapnames_zapobj; /* zap obj of snaps; ==0 for snaps */ 21*4882a593Smuzhiyun uint64_t ds_num_children; /* clone/snap children; ==0 for head */ 22*4882a593Smuzhiyun uint64_t ds_creation_time; /* seconds since 1970 */ 23*4882a593Smuzhiyun uint64_t ds_creation_txg; 24*4882a593Smuzhiyun uint64_t ds_deadlist_obj; 25*4882a593Smuzhiyun uint64_t ds_used_bytes; 26*4882a593Smuzhiyun uint64_t ds_compressed_bytes; 27*4882a593Smuzhiyun uint64_t ds_uncompressed_bytes; 28*4882a593Smuzhiyun uint64_t ds_unique_bytes; /* only relevant to snapshots */ 29*4882a593Smuzhiyun /* 30*4882a593Smuzhiyun * The ds_fsid_guid is a 56-bit ID that can change to avoid 31*4882a593Smuzhiyun * collisions. The ds_guid is a 64-bit ID that will never 32*4882a593Smuzhiyun * change, so there is a small probability that it will collide. 33*4882a593Smuzhiyun */ 34*4882a593Smuzhiyun uint64_t ds_fsid_guid; 35*4882a593Smuzhiyun uint64_t ds_guid; 36*4882a593Smuzhiyun uint64_t ds_flags; 37*4882a593Smuzhiyun blkptr_t ds_bp; 38*4882a593Smuzhiyun uint64_t ds_pad[8]; /* pad out to 320 bytes for good measure */ 39*4882a593Smuzhiyun } dsl_dataset_phys_t; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #endif /* _SYS_DSL_DATASET_H */ 42