931 lines
28 KiB
C
931 lines
28 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2011 by Delphix. All rights reserved.
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*/
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/* Portions Copyright 2010 Robert Milkowski */
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#ifndef _SYS_FS_ZFS_H
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#define _SYS_FS_ZFS_H
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#include <sys/time.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Types and constants shared between userland and the kernel.
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*/
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/*
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* Each dataset can be one of the following types. These constants can be
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* combined into masks that can be passed to various functions.
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*/
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typedef enum {
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ZFS_TYPE_FILESYSTEM = 0x1,
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ZFS_TYPE_SNAPSHOT = 0x2,
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ZFS_TYPE_VOLUME = 0x4,
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ZFS_TYPE_POOL = 0x8
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} zfs_type_t;
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#define ZFS_TYPE_DATASET \
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(ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT)
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#define ZAP_MAXNAMELEN 256
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#define ZAP_MAXVALUELEN (1024 * 8)
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#define ZAP_OLDMAXVALUELEN 1024
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/*
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* Dataset properties are identified by these constants and must be added to
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* the end of this list to ensure that external consumers are not affected
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* by the change. If you make any changes to this list, be sure to update
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* the property table in usr/src/common/zfs/zfs_prop.c.
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*/
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typedef enum {
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ZFS_PROP_TYPE,
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ZFS_PROP_CREATION,
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ZFS_PROP_USED,
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ZFS_PROP_AVAILABLE,
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ZFS_PROP_REFERENCED,
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ZFS_PROP_COMPRESSRATIO,
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ZFS_PROP_MOUNTED,
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ZFS_PROP_ORIGIN,
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ZFS_PROP_QUOTA,
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ZFS_PROP_RESERVATION,
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ZFS_PROP_VOLSIZE,
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ZFS_PROP_VOLBLOCKSIZE,
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ZFS_PROP_RECORDSIZE,
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ZFS_PROP_MOUNTPOINT,
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ZFS_PROP_SHARENFS,
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ZFS_PROP_CHECKSUM,
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ZFS_PROP_COMPRESSION,
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ZFS_PROP_ATIME,
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ZFS_PROP_DEVICES,
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ZFS_PROP_EXEC,
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ZFS_PROP_SETUID,
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ZFS_PROP_READONLY,
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ZFS_PROP_ZONED,
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ZFS_PROP_SNAPDIR,
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ZFS_PROP_PRIVATE, /* not exposed to user, temporary */
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ZFS_PROP_ACLINHERIT,
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ZFS_PROP_CREATETXG, /* not exposed to the user */
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ZFS_PROP_NAME, /* not exposed to the user */
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ZFS_PROP_CANMOUNT,
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ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */
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ZFS_PROP_XATTR,
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ZFS_PROP_NUMCLONES, /* not exposed to the user */
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ZFS_PROP_COPIES,
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ZFS_PROP_VERSION,
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ZFS_PROP_UTF8ONLY,
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ZFS_PROP_NORMALIZE,
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ZFS_PROP_CASE,
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ZFS_PROP_VSCAN,
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ZFS_PROP_NBMAND,
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ZFS_PROP_SHARESMB,
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ZFS_PROP_REFQUOTA,
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ZFS_PROP_REFRESERVATION,
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ZFS_PROP_GUID,
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ZFS_PROP_PRIMARYCACHE,
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ZFS_PROP_SECONDARYCACHE,
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ZFS_PROP_USEDSNAP,
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ZFS_PROP_USEDDS,
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ZFS_PROP_USEDCHILD,
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ZFS_PROP_USEDREFRESERV,
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ZFS_PROP_USERACCOUNTING, /* not exposed to the user */
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ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */
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ZFS_PROP_DEFER_DESTROY,
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ZFS_PROP_USERREFS,
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ZFS_PROP_LOGBIAS,
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ZFS_PROP_UNIQUE, /* not exposed to the user */
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ZFS_PROP_OBJSETID, /* not exposed to the user */
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ZFS_PROP_DEDUP,
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ZFS_PROP_MLSLABEL,
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ZFS_PROP_SYNC,
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ZFS_PROP_REFRATIO,
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ZFS_NUM_PROPS
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} zfs_prop_t;
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typedef enum {
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ZFS_PROP_USERUSED,
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ZFS_PROP_USERQUOTA,
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ZFS_PROP_GROUPUSED,
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ZFS_PROP_GROUPQUOTA,
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ZFS_NUM_USERQUOTA_PROPS
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} zfs_userquota_prop_t;
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extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS];
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/*
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* Pool properties are identified by these constants and must be added to the
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* end of this list to ensure that external consumers are not affected
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* by the change. If you make any changes to this list, be sure to update
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* the property table in usr/src/common/zfs/zpool_prop.c.
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*/
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typedef enum {
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ZPOOL_PROP_NAME,
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ZPOOL_PROP_SIZE,
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ZPOOL_PROP_CAPACITY,
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ZPOOL_PROP_ALTROOT,
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ZPOOL_PROP_HEALTH,
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ZPOOL_PROP_GUID,
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ZPOOL_PROP_VERSION,
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ZPOOL_PROP_BOOTFS,
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ZPOOL_PROP_DELEGATION,
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ZPOOL_PROP_AUTOREPLACE,
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ZPOOL_PROP_CACHEFILE,
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ZPOOL_PROP_FAILUREMODE,
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ZPOOL_PROP_LISTSNAPS,
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ZPOOL_PROP_AUTOEXPAND,
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ZPOOL_PROP_DEDUPDITTO,
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ZPOOL_PROP_DEDUPRATIO,
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ZPOOL_PROP_FREE,
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ZPOOL_PROP_ALLOCATED,
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ZPOOL_PROP_READONLY,
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ZPOOL_PROP_ASHIFT,
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ZPOOL_NUM_PROPS
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} zpool_prop_t;
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#define ZPROP_CONT -2
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#define ZPROP_INVAL -1
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#define ZPROP_VALUE "value"
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#define ZPROP_SOURCE "source"
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typedef enum {
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ZPROP_SRC_NONE = 0x1,
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ZPROP_SRC_DEFAULT = 0x2,
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ZPROP_SRC_TEMPORARY = 0x4,
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ZPROP_SRC_LOCAL = 0x8,
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ZPROP_SRC_INHERITED = 0x10,
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ZPROP_SRC_RECEIVED = 0x20
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} zprop_source_t;
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#define ZPROP_SRC_ALL 0x3f
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#define ZPROP_SOURCE_VAL_RECVD "$recvd"
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#define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS"
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/*
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* Dataset flag implemented as a special entry in the props zap object
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* indicating that the dataset has received properties on or after
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* SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties
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* just as it did in earlier versions, and thereafter, local properties are
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* preserved.
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*/
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#define ZPROP_HAS_RECVD "$hasrecvd"
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typedef enum {
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ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */
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ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */
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} zprop_errflags_t;
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typedef int (*zprop_func)(int, void *);
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/*
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* Properties to be set on the root file system of a new pool
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* are stuffed into their own nvlist, which is then included in
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* the properties nvlist with the pool properties.
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*/
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#define ZPOOL_ROOTFS_PROPS "root-props-nvl"
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/*
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* Dataset property functions shared between libzfs and kernel.
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*/
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const char *zfs_prop_default_string(zfs_prop_t);
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uint64_t zfs_prop_default_numeric(zfs_prop_t);
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boolean_t zfs_prop_readonly(zfs_prop_t);
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boolean_t zfs_prop_inheritable(zfs_prop_t);
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boolean_t zfs_prop_setonce(zfs_prop_t);
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const char *zfs_prop_to_name(zfs_prop_t);
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zfs_prop_t zfs_name_to_prop(const char *);
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boolean_t zfs_prop_user(const char *);
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boolean_t zfs_prop_userquota(const char *);
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int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **);
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int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *);
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uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed);
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boolean_t zfs_prop_valid_for_type(int, zfs_type_t);
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/*
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* Pool property functions shared between libzfs and kernel.
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*/
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zpool_prop_t zpool_name_to_prop(const char *);
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const char *zpool_prop_to_name(zpool_prop_t);
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const char *zpool_prop_default_string(zpool_prop_t);
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uint64_t zpool_prop_default_numeric(zpool_prop_t);
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boolean_t zpool_prop_readonly(zpool_prop_t);
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int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **);
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int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *);
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uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed);
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/*
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* Definitions for the Delegation.
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*/
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typedef enum {
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ZFS_DELEG_WHO_UNKNOWN = 0,
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ZFS_DELEG_USER = 'u',
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ZFS_DELEG_USER_SETS = 'U',
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ZFS_DELEG_GROUP = 'g',
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ZFS_DELEG_GROUP_SETS = 'G',
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ZFS_DELEG_EVERYONE = 'e',
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ZFS_DELEG_EVERYONE_SETS = 'E',
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ZFS_DELEG_CREATE = 'c',
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ZFS_DELEG_CREATE_SETS = 'C',
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ZFS_DELEG_NAMED_SET = 's',
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ZFS_DELEG_NAMED_SET_SETS = 'S'
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} zfs_deleg_who_type_t;
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typedef enum {
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ZFS_DELEG_NONE = 0,
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ZFS_DELEG_PERM_LOCAL = 1,
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ZFS_DELEG_PERM_DESCENDENT = 2,
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ZFS_DELEG_PERM_LOCALDESCENDENT = 3,
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ZFS_DELEG_PERM_CREATE = 4
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} zfs_deleg_inherit_t;
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#define ZFS_DELEG_PERM_UID "uid"
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#define ZFS_DELEG_PERM_GID "gid"
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#define ZFS_DELEG_PERM_GROUPS "groups"
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#define ZFS_MLSLABEL_DEFAULT "none"
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#define ZFS_SMB_ACL_SRC "src"
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#define ZFS_SMB_ACL_TARGET "target"
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typedef enum {
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ZFS_CANMOUNT_OFF = 0,
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ZFS_CANMOUNT_ON = 1,
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ZFS_CANMOUNT_NOAUTO = 2
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} zfs_canmount_type_t;
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typedef enum {
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ZFS_LOGBIAS_LATENCY = 0,
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ZFS_LOGBIAS_THROUGHPUT = 1
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} zfs_logbias_op_t;
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typedef enum zfs_share_op {
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ZFS_SHARE_NFS = 0,
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ZFS_UNSHARE_NFS = 1,
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ZFS_SHARE_SMB = 2,
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ZFS_UNSHARE_SMB = 3
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} zfs_share_op_t;
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typedef enum zfs_smb_acl_op {
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ZFS_SMB_ACL_ADD,
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ZFS_SMB_ACL_REMOVE,
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ZFS_SMB_ACL_RENAME,
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ZFS_SMB_ACL_PURGE
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} zfs_smb_acl_op_t;
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typedef enum zfs_cache_type {
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ZFS_CACHE_NONE = 0,
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ZFS_CACHE_METADATA = 1,
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ZFS_CACHE_ALL = 2
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} zfs_cache_type_t;
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typedef enum {
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ZFS_SYNC_STANDARD = 0,
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ZFS_SYNC_ALWAYS = 1,
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ZFS_SYNC_DISABLED = 2
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} zfs_sync_type_t;
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typedef enum {
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ZFS_XATTR_OFF = 0,
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ZFS_XATTR_DIR = 1,
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ZFS_XATTR_SA = 2
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} zfs_xattr_type_t;
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/*
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* On-disk version number.
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*/
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#define SPA_VERSION_1 1ULL
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#define SPA_VERSION_2 2ULL
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#define SPA_VERSION_3 3ULL
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#define SPA_VERSION_4 4ULL
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#define SPA_VERSION_5 5ULL
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#define SPA_VERSION_6 6ULL
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#define SPA_VERSION_7 7ULL
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#define SPA_VERSION_8 8ULL
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#define SPA_VERSION_9 9ULL
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#define SPA_VERSION_10 10ULL
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#define SPA_VERSION_11 11ULL
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#define SPA_VERSION_12 12ULL
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#define SPA_VERSION_13 13ULL
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#define SPA_VERSION_14 14ULL
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#define SPA_VERSION_15 15ULL
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#define SPA_VERSION_16 16ULL
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#define SPA_VERSION_17 17ULL
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#define SPA_VERSION_18 18ULL
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#define SPA_VERSION_19 19ULL
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#define SPA_VERSION_20 20ULL
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#define SPA_VERSION_21 21ULL
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#define SPA_VERSION_22 22ULL
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#define SPA_VERSION_23 23ULL
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#define SPA_VERSION_24 24ULL
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#define SPA_VERSION_25 25ULL
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#define SPA_VERSION_26 26ULL
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#define SPA_VERSION_27 27ULL
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#define SPA_VERSION_28 28ULL
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/*
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* When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk
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* format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*},
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* and do the appropriate changes. Also bump the version number in
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* usr/src/grub/capability.
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*/
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#define SPA_VERSION SPA_VERSION_28
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#define SPA_VERSION_STRING "28"
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/*
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* Symbolic names for the changes that caused a SPA_VERSION switch.
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* Used in the code when checking for presence or absence of a feature.
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* Feel free to define multiple symbolic names for each version if there
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* were multiple changes to on-disk structures during that version.
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*
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* NOTE: When checking the current SPA_VERSION in your code, be sure
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* to use spa_version() since it reports the version of the
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* last synced uberblock. Checking the in-flight version can
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* be dangerous in some cases.
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*/
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#define SPA_VERSION_INITIAL SPA_VERSION_1
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#define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2
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#define SPA_VERSION_SPARES SPA_VERSION_3
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#define SPA_VERSION_RAIDZ2 SPA_VERSION_3
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#define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3
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#define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3
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#define SPA_VERSION_DNODE_BYTES SPA_VERSION_3
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#define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4
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#define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5
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#define SPA_VERSION_BOOTFS SPA_VERSION_6
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#define SPA_VERSION_SLOGS SPA_VERSION_7
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#define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8
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#define SPA_VERSION_FUID SPA_VERSION_9
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#define SPA_VERSION_REFRESERVATION SPA_VERSION_9
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#define SPA_VERSION_REFQUOTA SPA_VERSION_9
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#define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9
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#define SPA_VERSION_L2CACHE SPA_VERSION_10
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#define SPA_VERSION_NEXT_CLONES SPA_VERSION_11
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#define SPA_VERSION_ORIGIN SPA_VERSION_11
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#define SPA_VERSION_DSL_SCRUB SPA_VERSION_11
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#define SPA_VERSION_SNAP_PROPS SPA_VERSION_12
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#define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13
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#define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14
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#define SPA_VERSION_USERSPACE SPA_VERSION_15
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#define SPA_VERSION_STMF_PROP SPA_VERSION_16
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#define SPA_VERSION_RAIDZ3 SPA_VERSION_17
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#define SPA_VERSION_USERREFS SPA_VERSION_18
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#define SPA_VERSION_HOLES SPA_VERSION_19
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#define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20
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#define SPA_VERSION_DEDUP SPA_VERSION_21
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#define SPA_VERSION_RECVD_PROPS SPA_VERSION_22
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#define SPA_VERSION_SLIM_ZIL SPA_VERSION_23
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#define SPA_VERSION_SA SPA_VERSION_24
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#define SPA_VERSION_SCAN SPA_VERSION_25
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#define SPA_VERSION_DIR_CLONES SPA_VERSION_26
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#define SPA_VERSION_DEADLISTS SPA_VERSION_26
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#define SPA_VERSION_FAST_SNAP SPA_VERSION_27
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#define SPA_VERSION_MULTI_REPLACE SPA_VERSION_28
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/*
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* ZPL version - rev'd whenever an incompatible on-disk format change
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* occurs. This is independent of SPA/DMU/ZAP versioning. You must
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* also update the version_table[] and help message in zfs_prop.c.
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*
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* When changing, be sure to teach GRUB how to read the new format!
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* See usr/src/grub/grub-0.97/stage2/{zfs-include/,fsys_zfs*}
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*/
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#define ZPL_VERSION_1 1ULL
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#define ZPL_VERSION_2 2ULL
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#define ZPL_VERSION_3 3ULL
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#define ZPL_VERSION_4 4ULL
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#define ZPL_VERSION_5 5ULL
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#define ZPL_VERSION ZPL_VERSION_5
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#define ZPL_VERSION_STRING "5"
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#define ZPL_VERSION_INITIAL ZPL_VERSION_1
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#define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2
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#define ZPL_VERSION_FUID ZPL_VERSION_3
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#define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3
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#define ZPL_VERSION_SYSATTR ZPL_VERSION_3
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#define ZPL_VERSION_USERSPACE ZPL_VERSION_4
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#define ZPL_VERSION_SA ZPL_VERSION_5
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/* Rewind request information */
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#define ZPOOL_NO_REWIND 1 /* No policy - default behavior */
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#define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */
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#define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */
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#define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */
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#define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */
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#define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */
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#define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */
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|
|
typedef struct zpool_rewind_policy {
|
|
uint32_t zrp_request; /* rewind behavior requested */
|
|
uint64_t zrp_maxmeta; /* max acceptable meta-data errors */
|
|
uint64_t zrp_maxdata; /* max acceptable data errors */
|
|
uint64_t zrp_txg; /* specific txg to load */
|
|
} zpool_rewind_policy_t;
|
|
|
|
/*
|
|
* The following are configuration names used in the nvlist describing a pool's
|
|
* configuration.
|
|
*/
|
|
#define ZPOOL_CONFIG_VERSION "version"
|
|
#define ZPOOL_CONFIG_POOL_NAME "name"
|
|
#define ZPOOL_CONFIG_POOL_STATE "state"
|
|
#define ZPOOL_CONFIG_POOL_TXG "txg"
|
|
#define ZPOOL_CONFIG_POOL_GUID "pool_guid"
|
|
#define ZPOOL_CONFIG_CREATE_TXG "create_txg"
|
|
#define ZPOOL_CONFIG_TOP_GUID "top_guid"
|
|
#define ZPOOL_CONFIG_VDEV_TREE "vdev_tree"
|
|
#define ZPOOL_CONFIG_TYPE "type"
|
|
#define ZPOOL_CONFIG_CHILDREN "children"
|
|
#define ZPOOL_CONFIG_ID "id"
|
|
#define ZPOOL_CONFIG_GUID "guid"
|
|
#define ZPOOL_CONFIG_PATH "path"
|
|
#define ZPOOL_CONFIG_DEVID "devid"
|
|
#define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array"
|
|
#define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift"
|
|
#define ZPOOL_CONFIG_ASHIFT "ashift"
|
|
#define ZPOOL_CONFIG_ASIZE "asize"
|
|
#define ZPOOL_CONFIG_DTL "DTL"
|
|
#define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */
|
|
#define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */
|
|
#define ZPOOL_CONFIG_WHOLE_DISK "whole_disk"
|
|
#define ZPOOL_CONFIG_ERRCOUNT "error_count"
|
|
#define ZPOOL_CONFIG_NOT_PRESENT "not_present"
|
|
#define ZPOOL_CONFIG_SPARES "spares"
|
|
#define ZPOOL_CONFIG_IS_SPARE "is_spare"
|
|
#define ZPOOL_CONFIG_NPARITY "nparity"
|
|
#define ZPOOL_CONFIG_HOSTID "hostid"
|
|
#define ZPOOL_CONFIG_HOSTNAME "hostname"
|
|
#define ZPOOL_CONFIG_LOADED_TIME "initial_load_time"
|
|
#define ZPOOL_CONFIG_UNSPARE "unspare"
|
|
#define ZPOOL_CONFIG_PHYS_PATH "phys_path"
|
|
#define ZPOOL_CONFIG_IS_LOG "is_log"
|
|
#define ZPOOL_CONFIG_L2CACHE "l2cache"
|
|
#define ZPOOL_CONFIG_HOLE_ARRAY "hole_array"
|
|
#define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children"
|
|
#define ZPOOL_CONFIG_IS_HOLE "is_hole"
|
|
#define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram"
|
|
#define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats"
|
|
#define ZPOOL_CONFIG_DDT_STATS "ddt_stats"
|
|
#define ZPOOL_CONFIG_SPLIT "splitcfg"
|
|
#define ZPOOL_CONFIG_ORIG_GUID "orig_guid"
|
|
#define ZPOOL_CONFIG_SPLIT_GUID "split_guid"
|
|
#define ZPOOL_CONFIG_SPLIT_LIST "guid_list"
|
|
#define ZPOOL_CONFIG_REMOVING "removing"
|
|
#define ZPOOL_CONFIG_RESILVERING "resilvering"
|
|
#define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */
|
|
#define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */
|
|
#define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */
|
|
#define ZPOOL_CONFIG_MISSING_DEVICES "missing_vdevs" /* not stored on disk */
|
|
#define ZPOOL_CONFIG_LOAD_INFO "load_info" /* not stored on disk */
|
|
/*
|
|
* The persistent vdev state is stored as separate values rather than a single
|
|
* 'vdev_state' entry. This is because a device can be in multiple states, such
|
|
* as offline and degraded.
|
|
*/
|
|
#define ZPOOL_CONFIG_OFFLINE "offline"
|
|
#define ZPOOL_CONFIG_FAULTED "faulted"
|
|
#define ZPOOL_CONFIG_DEGRADED "degraded"
|
|
#define ZPOOL_CONFIG_REMOVED "removed"
|
|
#define ZPOOL_CONFIG_FRU "fru"
|
|
#define ZPOOL_CONFIG_AUX_STATE "aux_state"
|
|
|
|
/* Rewind policy parameters */
|
|
#define ZPOOL_REWIND_POLICY "rewind-policy"
|
|
#define ZPOOL_REWIND_REQUEST "rewind-request"
|
|
#define ZPOOL_REWIND_REQUEST_TXG "rewind-request-txg"
|
|
#define ZPOOL_REWIND_META_THRESH "rewind-meta-thresh"
|
|
#define ZPOOL_REWIND_DATA_THRESH "rewind-data-thresh"
|
|
|
|
/* Rewind data discovered */
|
|
#define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts"
|
|
#define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors"
|
|
#define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind"
|
|
|
|
#define VDEV_TYPE_ROOT "root"
|
|
#define VDEV_TYPE_MIRROR "mirror"
|
|
#define VDEV_TYPE_REPLACING "replacing"
|
|
#define VDEV_TYPE_RAIDZ "raidz"
|
|
#define VDEV_TYPE_DISK "disk"
|
|
#define VDEV_TYPE_FILE "file"
|
|
#define VDEV_TYPE_MISSING "missing"
|
|
#define VDEV_TYPE_HOLE "hole"
|
|
#define VDEV_TYPE_SPARE "spare"
|
|
#define VDEV_TYPE_LOG "log"
|
|
#define VDEV_TYPE_L2CACHE "l2cache"
|
|
|
|
/*
|
|
* This is needed in userland to report the minimum necessary device size.
|
|
*/
|
|
#define SPA_MINDEVSIZE (64ULL << 20)
|
|
|
|
/*
|
|
* The location of the pool configuration repository, shared between kernel and
|
|
* userland.
|
|
*/
|
|
#define ZPOOL_CACHE "/etc/zfs/zpool.cache"
|
|
|
|
/*
|
|
* vdev states are ordered from least to most healthy.
|
|
* A vdev that's CANT_OPEN or below is considered unusable.
|
|
*/
|
|
typedef enum vdev_state {
|
|
VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */
|
|
VDEV_STATE_CLOSED, /* Not currently open */
|
|
VDEV_STATE_OFFLINE, /* Not allowed to open */
|
|
VDEV_STATE_REMOVED, /* Explicitly removed from system */
|
|
VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */
|
|
VDEV_STATE_FAULTED, /* External request to fault device */
|
|
VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */
|
|
VDEV_STATE_HEALTHY /* Presumed good */
|
|
} vdev_state_t;
|
|
|
|
#define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY
|
|
|
|
/*
|
|
* vdev aux states. When a vdev is in the CANT_OPEN state, the aux field
|
|
* of the vdev stats structure uses these constants to distinguish why.
|
|
*/
|
|
typedef enum vdev_aux {
|
|
VDEV_AUX_NONE, /* no error */
|
|
VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */
|
|
VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */
|
|
VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */
|
|
VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */
|
|
VDEV_AUX_TOO_SMALL, /* vdev size is too small */
|
|
VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */
|
|
VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */
|
|
VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */
|
|
VDEV_AUX_SPARED, /* hot spare used in another pool */
|
|
VDEV_AUX_ERR_EXCEEDED, /* too many errors */
|
|
VDEV_AUX_IO_FAILURE, /* experienced I/O failure */
|
|
VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */
|
|
VDEV_AUX_EXTERNAL, /* external diagnosis */
|
|
VDEV_AUX_SPLIT_POOL /* vdev was split off into another pool */
|
|
} vdev_aux_t;
|
|
|
|
/*
|
|
* pool state. The following states are written to disk as part of the normal
|
|
* SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining
|
|
* states are software abstractions used at various levels to communicate
|
|
* pool state.
|
|
*/
|
|
typedef enum pool_state {
|
|
POOL_STATE_ACTIVE = 0, /* In active use */
|
|
POOL_STATE_EXPORTED, /* Explicitly exported */
|
|
POOL_STATE_DESTROYED, /* Explicitly destroyed */
|
|
POOL_STATE_SPARE, /* Reserved for hot spare use */
|
|
POOL_STATE_L2CACHE, /* Level 2 ARC device */
|
|
POOL_STATE_UNINITIALIZED, /* Internal spa_t state */
|
|
POOL_STATE_UNAVAIL, /* Internal libzfs state */
|
|
POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */
|
|
} pool_state_t;
|
|
|
|
/*
|
|
* Scan Functions.
|
|
*/
|
|
typedef enum pool_scan_func {
|
|
POOL_SCAN_NONE,
|
|
POOL_SCAN_SCRUB,
|
|
POOL_SCAN_RESILVER,
|
|
POOL_SCAN_FUNCS
|
|
} pool_scan_func_t;
|
|
|
|
/*
|
|
* ZIO types. Needed to interpret vdev statistics below.
|
|
*/
|
|
typedef enum zio_type {
|
|
ZIO_TYPE_NULL = 0,
|
|
ZIO_TYPE_READ,
|
|
ZIO_TYPE_WRITE,
|
|
ZIO_TYPE_FREE,
|
|
ZIO_TYPE_CLAIM,
|
|
ZIO_TYPE_IOCTL,
|
|
ZIO_TYPES
|
|
} zio_type_t;
|
|
|
|
/*
|
|
* Pool statistics. Note: all fields should be 64-bit because this
|
|
* is passed between kernel and userland as an nvlist uint64 array.
|
|
*/
|
|
typedef struct pool_scan_stat {
|
|
/* values stored on disk */
|
|
uint64_t pss_func; /* pool_scan_func_t */
|
|
uint64_t pss_state; /* dsl_scan_state_t */
|
|
uint64_t pss_start_time; /* scan start time */
|
|
uint64_t pss_end_time; /* scan end time */
|
|
uint64_t pss_to_examine; /* total bytes to scan */
|
|
uint64_t pss_examined; /* total examined bytes */
|
|
uint64_t pss_to_process; /* total bytes to process */
|
|
uint64_t pss_processed; /* total processed bytes */
|
|
uint64_t pss_errors; /* scan errors */
|
|
|
|
/* values not stored on disk */
|
|
uint64_t pss_pass_exam; /* examined bytes per scan pass */
|
|
uint64_t pss_pass_start; /* start time of a scan pass */
|
|
} pool_scan_stat_t;
|
|
|
|
typedef enum dsl_scan_state {
|
|
DSS_NONE,
|
|
DSS_SCANNING,
|
|
DSS_FINISHED,
|
|
DSS_CANCELED,
|
|
DSS_NUM_STATES
|
|
} dsl_scan_state_t;
|
|
|
|
|
|
/*
|
|
* Vdev statistics. Note: all fields should be 64-bit because this
|
|
* is passed between kernel and userland as an nvlist uint64 array.
|
|
*/
|
|
typedef struct vdev_stat {
|
|
hrtime_t vs_timestamp; /* time since vdev load */
|
|
uint64_t vs_state; /* vdev state */
|
|
uint64_t vs_aux; /* see vdev_aux_t */
|
|
uint64_t vs_alloc; /* space allocated */
|
|
uint64_t vs_space; /* total capacity */
|
|
uint64_t vs_dspace; /* deflated capacity */
|
|
uint64_t vs_rsize; /* replaceable dev size */
|
|
uint64_t vs_ops[ZIO_TYPES]; /* operation count */
|
|
uint64_t vs_bytes[ZIO_TYPES]; /* bytes read/written */
|
|
uint64_t vs_read_errors; /* read errors */
|
|
uint64_t vs_write_errors; /* write errors */
|
|
uint64_t vs_checksum_errors; /* checksum errors */
|
|
uint64_t vs_self_healed; /* self-healed bytes */
|
|
uint64_t vs_scan_removing; /* removing? */
|
|
uint64_t vs_scan_processed; /* scan processed bytes */
|
|
} vdev_stat_t;
|
|
|
|
/*
|
|
* DDT statistics. Note: all fields should be 64-bit because this
|
|
* is passed between kernel and userland as an nvlist uint64 array.
|
|
*/
|
|
typedef struct ddt_object {
|
|
uint64_t ddo_count; /* number of elments in ddt */
|
|
uint64_t ddo_dspace; /* size of ddt on disk */
|
|
uint64_t ddo_mspace; /* size of ddt in-core */
|
|
} ddt_object_t;
|
|
|
|
typedef struct ddt_stat {
|
|
uint64_t dds_blocks; /* blocks */
|
|
uint64_t dds_lsize; /* logical size */
|
|
uint64_t dds_psize; /* physical size */
|
|
uint64_t dds_dsize; /* deflated allocated size */
|
|
uint64_t dds_ref_blocks; /* referenced blocks */
|
|
uint64_t dds_ref_lsize; /* referenced lsize * refcnt */
|
|
uint64_t dds_ref_psize; /* referenced psize * refcnt */
|
|
uint64_t dds_ref_dsize; /* referenced dsize * refcnt */
|
|
} ddt_stat_t;
|
|
|
|
typedef struct ddt_histogram {
|
|
ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */
|
|
} ddt_histogram_t;
|
|
|
|
#define ZVOL_DRIVER "zvol"
|
|
#define ZFS_DRIVER "zfs"
|
|
#define ZFS_DEV "/dev/zfs"
|
|
|
|
/* general zvol path */
|
|
#define ZVOL_DIR "/dev"
|
|
|
|
#define ZVOL_MAJOR 230
|
|
#define ZVOL_MINOR_BITS 4
|
|
#define ZVOL_MINOR_MASK ((1U << ZVOL_MINOR_BITS) - 1)
|
|
#define ZVOL_MINORS (1 << 4)
|
|
#define ZVOL_DEV_NAME "zd"
|
|
|
|
#define ZVOL_PROP_NAME "name"
|
|
#define ZVOL_DEFAULT_BLOCKSIZE 8192
|
|
|
|
/*
|
|
* /dev/zfs ioctl numbers.
|
|
*/
|
|
#define ZFS_IOC ('Z' << 8)
|
|
|
|
typedef enum zfs_ioc {
|
|
ZFS_IOC_POOL_CREATE = ZFS_IOC,
|
|
ZFS_IOC_POOL_DESTROY,
|
|
ZFS_IOC_POOL_IMPORT,
|
|
ZFS_IOC_POOL_EXPORT,
|
|
ZFS_IOC_POOL_CONFIGS,
|
|
ZFS_IOC_POOL_STATS,
|
|
ZFS_IOC_POOL_TRYIMPORT,
|
|
ZFS_IOC_POOL_SCAN,
|
|
ZFS_IOC_POOL_FREEZE,
|
|
ZFS_IOC_POOL_UPGRADE,
|
|
ZFS_IOC_POOL_GET_HISTORY,
|
|
ZFS_IOC_VDEV_ADD,
|
|
ZFS_IOC_VDEV_REMOVE,
|
|
ZFS_IOC_VDEV_SET_STATE,
|
|
ZFS_IOC_VDEV_ATTACH,
|
|
ZFS_IOC_VDEV_DETACH,
|
|
ZFS_IOC_VDEV_SETPATH,
|
|
ZFS_IOC_VDEV_SETFRU,
|
|
ZFS_IOC_OBJSET_STATS,
|
|
ZFS_IOC_OBJSET_ZPLPROPS,
|
|
ZFS_IOC_DATASET_LIST_NEXT,
|
|
ZFS_IOC_SNAPSHOT_LIST_NEXT,
|
|
ZFS_IOC_SET_PROP,
|
|
ZFS_IOC_CREATE_MINOR,
|
|
ZFS_IOC_REMOVE_MINOR,
|
|
ZFS_IOC_CREATE,
|
|
ZFS_IOC_DESTROY,
|
|
ZFS_IOC_ROLLBACK,
|
|
ZFS_IOC_RENAME,
|
|
ZFS_IOC_RECV,
|
|
ZFS_IOC_SEND,
|
|
ZFS_IOC_INJECT_FAULT,
|
|
ZFS_IOC_CLEAR_FAULT,
|
|
ZFS_IOC_INJECT_LIST_NEXT,
|
|
ZFS_IOC_ERROR_LOG,
|
|
ZFS_IOC_CLEAR,
|
|
ZFS_IOC_PROMOTE,
|
|
ZFS_IOC_DESTROY_SNAPS,
|
|
ZFS_IOC_SNAPSHOT,
|
|
ZFS_IOC_DSOBJ_TO_DSNAME,
|
|
ZFS_IOC_OBJ_TO_PATH,
|
|
ZFS_IOC_POOL_SET_PROPS,
|
|
ZFS_IOC_POOL_GET_PROPS,
|
|
ZFS_IOC_SET_FSACL,
|
|
ZFS_IOC_GET_FSACL,
|
|
ZFS_IOC_SHARE,
|
|
ZFS_IOC_INHERIT_PROP,
|
|
ZFS_IOC_SMB_ACL,
|
|
ZFS_IOC_USERSPACE_ONE,
|
|
ZFS_IOC_USERSPACE_MANY,
|
|
ZFS_IOC_USERSPACE_UPGRADE,
|
|
ZFS_IOC_HOLD,
|
|
ZFS_IOC_RELEASE,
|
|
ZFS_IOC_GET_HOLDS,
|
|
ZFS_IOC_OBJSET_RECVD_PROPS,
|
|
ZFS_IOC_VDEV_SPLIT,
|
|
ZFS_IOC_NEXT_OBJ,
|
|
ZFS_IOC_DIFF,
|
|
ZFS_IOC_TMP_SNAPSHOT,
|
|
ZFS_IOC_OBJ_TO_STATS,
|
|
ZFS_IOC_EVENTS_NEXT,
|
|
ZFS_IOC_EVENTS_CLEAR,
|
|
} zfs_ioc_t;
|
|
|
|
/*
|
|
* zvol ioctl to get dataset name
|
|
*/
|
|
#define BLKZNAME _IOR(0x12,125,char[ZFS_MAXNAMELEN])
|
|
|
|
/*
|
|
* Internal SPA load state. Used by FMA diagnosis engine.
|
|
*/
|
|
typedef enum {
|
|
SPA_LOAD_NONE, /* no load in progress */
|
|
SPA_LOAD_OPEN, /* normal open */
|
|
SPA_LOAD_IMPORT, /* import in progress */
|
|
SPA_LOAD_TRYIMPORT, /* tryimport in progress */
|
|
SPA_LOAD_RECOVER, /* recovery requested */
|
|
SPA_LOAD_ERROR /* load failed */
|
|
} spa_load_state_t;
|
|
|
|
/*
|
|
* Bookmark name values.
|
|
*/
|
|
#define ZPOOL_ERR_LIST "error list"
|
|
#define ZPOOL_ERR_DATASET "dataset"
|
|
#define ZPOOL_ERR_OBJECT "object"
|
|
|
|
#define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1)
|
|
|
|
/*
|
|
* The following are names used in the nvlist describing
|
|
* the pool's history log.
|
|
*/
|
|
#define ZPOOL_HIST_RECORD "history record"
|
|
#define ZPOOL_HIST_TIME "history time"
|
|
#define ZPOOL_HIST_CMD "history command"
|
|
#define ZPOOL_HIST_WHO "history who"
|
|
#define ZPOOL_HIST_ZONE "history zone"
|
|
#define ZPOOL_HIST_HOST "history hostname"
|
|
#define ZPOOL_HIST_TXG "history txg"
|
|
#define ZPOOL_HIST_INT_EVENT "history internal event"
|
|
#define ZPOOL_HIST_INT_STR "history internal str"
|
|
|
|
/*
|
|
* Flags for ZFS_IOC_VDEV_SET_STATE
|
|
*/
|
|
#define ZFS_ONLINE_CHECKREMOVE 0x1
|
|
#define ZFS_ONLINE_UNSPARE 0x2
|
|
#define ZFS_ONLINE_FORCEFAULT 0x4
|
|
#define ZFS_ONLINE_EXPAND 0x8
|
|
#define ZFS_OFFLINE_TEMPORARY 0x1
|
|
|
|
/*
|
|
* Flags for ZFS_IOC_POOL_IMPORT
|
|
*/
|
|
#define ZFS_IMPORT_NORMAL 0x0
|
|
#define ZFS_IMPORT_VERBATIM 0x1
|
|
#define ZFS_IMPORT_ANY_HOST 0x2
|
|
#define ZFS_IMPORT_MISSING_LOG 0x4
|
|
#define ZFS_IMPORT_ONLY 0x8
|
|
|
|
/*
|
|
* Sysevent payload members. ZFS will generate the following sysevents with the
|
|
* given payloads:
|
|
*
|
|
* ESC_ZFS_RESILVER_START
|
|
* ESC_ZFS_RESILVER_END
|
|
* ESC_ZFS_POOL_DESTROY
|
|
*
|
|
* ZFS_EV_POOL_NAME DATA_TYPE_STRING
|
|
* ZFS_EV_POOL_GUID DATA_TYPE_UINT64
|
|
*
|
|
* ESC_ZFS_VDEV_REMOVE
|
|
* ESC_ZFS_VDEV_CLEAR
|
|
* ESC_ZFS_VDEV_CHECK
|
|
*
|
|
* ZFS_EV_POOL_NAME DATA_TYPE_STRING
|
|
* ZFS_EV_POOL_GUID DATA_TYPE_UINT64
|
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* ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional)
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* ZFS_EV_VDEV_GUID DATA_TYPE_UINT64
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*/
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#define ZFS_EV_POOL_NAME "pool_name"
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#define ZFS_EV_POOL_GUID "pool_guid"
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#define ZFS_EV_VDEV_PATH "vdev_path"
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#define ZFS_EV_VDEV_GUID "vdev_guid"
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|
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/*
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* Note: This is encoded on-disk, so new events must be added to the
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|
* end, and unused events can not be removed. Be sure to edit
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* libzfs_pool.c: hist_event_table[].
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*/
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typedef enum history_internal_events {
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LOG_NO_EVENT = 0,
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LOG_POOL_CREATE,
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LOG_POOL_VDEV_ADD,
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LOG_POOL_REMOVE,
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LOG_POOL_DESTROY,
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LOG_POOL_EXPORT,
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|
LOG_POOL_IMPORT,
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LOG_POOL_VDEV_ATTACH,
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LOG_POOL_VDEV_REPLACE,
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|
LOG_POOL_VDEV_DETACH,
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LOG_POOL_VDEV_ONLINE,
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|
LOG_POOL_VDEV_OFFLINE,
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|
LOG_POOL_UPGRADE,
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|
LOG_POOL_CLEAR,
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|
LOG_POOL_SCAN,
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|
LOG_POOL_PROPSET,
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|
LOG_DS_CREATE,
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|
LOG_DS_CLONE,
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|
LOG_DS_DESTROY,
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|
LOG_DS_DESTROY_BEGIN,
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|
LOG_DS_INHERIT,
|
|
LOG_DS_PROPSET,
|
|
LOG_DS_QUOTA,
|
|
LOG_DS_PERM_UPDATE,
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|
LOG_DS_PERM_REMOVE,
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|
LOG_DS_PERM_WHO_REMOVE,
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|
LOG_DS_PROMOTE,
|
|
LOG_DS_RECEIVE,
|
|
LOG_DS_RENAME,
|
|
LOG_DS_RESERVATION,
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|
LOG_DS_REPLAY_INC_SYNC,
|
|
LOG_DS_REPLAY_FULL_SYNC,
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|
LOG_DS_ROLLBACK,
|
|
LOG_DS_SNAPSHOT,
|
|
LOG_DS_UPGRADE,
|
|
LOG_DS_REFQUOTA,
|
|
LOG_DS_REFRESERV,
|
|
LOG_POOL_SCAN_DONE,
|
|
LOG_DS_USER_HOLD,
|
|
LOG_DS_USER_RELEASE,
|
|
LOG_POOL_SPLIT,
|
|
LOG_END
|
|
} history_internal_events_t;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_FS_ZFS_H */
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