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a448a2557e
The following patch introduces a few statistics on reads and writes grouped by dataset. These statistics are implemented as kstats (backed by aggregate sums for performance) and can be retrieved by using the dataset objset ID number. The motivation for this change is to provide some preliminary analytics on dataset usage/performance. Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com> Closes #7705
272 lines
8.3 KiB
C
272 lines
8.3 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
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* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
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* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
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*/
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#include <sys/zio.h>
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#include <sys/spa.h>
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#include <sys/zfs_acl.h>
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#include <sys/zfs_ioctl.h>
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#include <sys/fs/zfs.h>
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#include "zfs_prop.h"
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#if !defined(_KERNEL)
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#endif
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static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];
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zprop_desc_t *
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zpool_prop_get_table(void)
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{
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return (zpool_prop_table);
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}
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void
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zpool_prop_init(void)
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{
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static zprop_index_t boolean_table[] = {
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{ "off", 0},
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{ "on", 1},
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{ NULL }
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};
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static zprop_index_t failuremode_table[] = {
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{ "wait", ZIO_FAILURE_MODE_WAIT },
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{ "continue", ZIO_FAILURE_MODE_CONTINUE },
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{ "panic", ZIO_FAILURE_MODE_PANIC },
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{ NULL }
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};
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/* string properties */
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zprop_register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
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ZFS_TYPE_POOL, "<path>", "ALTROOT");
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zprop_register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
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ZFS_TYPE_POOL, "<filesystem>", "BOOTFS");
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zprop_register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL,
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PROP_DEFAULT, ZFS_TYPE_POOL, "<file> | none", "CACHEFILE");
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zprop_register_string(ZPOOL_PROP_COMMENT, "comment", NULL,
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PROP_DEFAULT, ZFS_TYPE_POOL, "<comment-string>", "COMMENT");
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/* readonly number properties */
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zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<size>", "SIZE");
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zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<size>", "FREE");
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zprop_register_number(ZPOOL_PROP_FREEING, "freeing", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<size>", "FREEING");
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zprop_register_number(ZPOOL_PROP_CHECKPOINT, "checkpoint", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<size>", "CKPOINT");
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zprop_register_number(ZPOOL_PROP_LEAKED, "leaked", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<size>", "LEAKED");
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zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC");
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zprop_register_number(ZPOOL_PROP_EXPANDSZ, "expandsize", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<size>", "EXPANDSZ");
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zprop_register_number(ZPOOL_PROP_FRAGMENTATION, "fragmentation", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<percent>", "FRAG");
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zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<size>", "CAP");
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zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<guid>", "GUID");
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zprop_register_number(ZPOOL_PROP_LOAD_GUID, "load_guid", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<load_guid>", "LOAD_GUID");
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zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
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ZFS_TYPE_POOL, "<state>", "HEALTH");
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zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
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"DEDUP");
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/* default number properties */
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zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
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PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
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zprop_register_number(ZPOOL_PROP_DEDUPDITTO, "dedupditto", 0,
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PROP_DEFAULT, ZFS_TYPE_POOL, "<threshold (min 100)>", "DEDUPDITTO");
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zprop_register_number(ZPOOL_PROP_ASHIFT, "ashift", 0, PROP_DEFAULT,
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ZFS_TYPE_POOL, "<ashift, 9-16, or 0=default>", "ASHIFT");
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/* default index (boolean) properties */
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zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
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PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
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boolean_table);
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zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
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PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
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zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
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PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
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boolean_table);
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zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
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PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table);
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zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
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PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table);
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zprop_register_index(ZPOOL_PROP_MULTIHOST, "multihost", 0,
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PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "MULTIHOST",
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boolean_table);
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/* default index properties */
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zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
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ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
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"wait | continue | panic", "FAILMODE", failuremode_table);
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/* hidden properties */
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zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
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PROP_READONLY, ZFS_TYPE_POOL, "NAME");
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zprop_register_hidden(ZPOOL_PROP_MAXBLOCKSIZE, "maxblocksize",
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PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE");
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zprop_register_hidden(ZPOOL_PROP_TNAME, "tname", PROP_TYPE_STRING,
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PROP_ONETIME, ZFS_TYPE_POOL, "TNAME");
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zprop_register_hidden(ZPOOL_PROP_MAXDNODESIZE, "maxdnodesize",
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PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXDNODESIZE");
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}
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/*
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* Given a property name and its type, returns the corresponding property ID.
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*/
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zpool_prop_t
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zpool_name_to_prop(const char *propname)
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{
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return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
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}
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/*
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* Given a pool property ID, returns the corresponding name.
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* Assuming the pool propety ID is valid.
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*/
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const char *
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zpool_prop_to_name(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_name);
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}
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zprop_type_t
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zpool_prop_get_type(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_proptype);
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}
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boolean_t
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zpool_prop_readonly(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
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}
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boolean_t
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zpool_prop_setonce(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_attr == PROP_ONETIME);
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}
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const char *
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zpool_prop_default_string(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_strdefault);
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}
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uint64_t
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zpool_prop_default_numeric(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_numdefault);
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}
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/*
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* Returns true if this is a valid feature@ property.
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*/
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boolean_t
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zpool_prop_feature(const char *name)
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{
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static const char *prefix = "feature@";
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return (strncmp(name, prefix, strlen(prefix)) == 0);
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}
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/*
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* Returns true if this is a valid unsupported@ property.
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*/
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boolean_t
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zpool_prop_unsupported(const char *name)
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{
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static const char *prefix = "unsupported@";
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return (strncmp(name, prefix, strlen(prefix)) == 0);
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}
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int
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zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
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uint64_t *index)
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{
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return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
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}
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int
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zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
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const char **string)
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{
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return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
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}
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uint64_t
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zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
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{
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return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
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}
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#ifndef _KERNEL
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const char *
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zpool_prop_values(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_values);
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}
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const char *
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zpool_prop_column_name(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_colname);
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}
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boolean_t
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zpool_prop_align_right(zpool_prop_t prop)
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{
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return (zpool_prop_table[prop].pd_rightalign);
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}
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#endif
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#if defined(_KERNEL)
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/* zpool property functions */
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EXPORT_SYMBOL(zpool_prop_init);
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EXPORT_SYMBOL(zpool_prop_get_type);
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EXPORT_SYMBOL(zpool_prop_get_table);
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/* Pool property functions shared between libzfs and kernel. */
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EXPORT_SYMBOL(zpool_name_to_prop);
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EXPORT_SYMBOL(zpool_prop_to_name);
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EXPORT_SYMBOL(zpool_prop_default_string);
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EXPORT_SYMBOL(zpool_prop_default_numeric);
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EXPORT_SYMBOL(zpool_prop_readonly);
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EXPORT_SYMBOL(zpool_prop_feature);
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EXPORT_SYMBOL(zpool_prop_unsupported);
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EXPORT_SYMBOL(zpool_prop_index_to_string);
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EXPORT_SYMBOL(zpool_prop_string_to_index);
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#endif
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