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mirror_zfs/module/zcommon/zpool_prop.c
Don Brady 5caeef02fa
RAID-Z expansion feature 
This feature allows disks to be added one at a time to a RAID-Z group,
expanding its capacity incrementally.  This feature is especially useful
for small pools (typically with only one RAID-Z group), where there
isn't sufficient hardware to add capacity by adding a whole new RAID-Z
group (typically doubling the number of disks).

== Initiating expansion ==

A new device (disk) can be attached to an existing RAIDZ vdev, by
running `zpool attach POOL raidzP-N NEW_DEVICE`, e.g. `zpool attach tank
raidz2-0 sda`.  The new device will become part of the RAIDZ group.  A
"raidz expansion" will be initiated, and the new device will contribute
additional space to the RAIDZ group once the expansion completes.

The `feature@raidz_expansion` on-disk feature flag must be `enabled` to
initiate an expansion, and it remains `active` for the life of the pool.
In other words, pools with expanded RAIDZ vdevs can not be imported by
older releases of the ZFS software.

== During expansion ==

The expansion entails reading all allocated space from existing disks in
the RAIDZ group, and rewriting it to the new disks in the RAIDZ group
(including the newly added device).

The expansion progress can be monitored with `zpool status`.

Data redundancy is maintained during (and after) the expansion.  If a
disk fails while the expansion is in progress, the expansion pauses
until the health of the RAIDZ vdev is restored (e.g. by replacing the
failed disk and waiting for reconstruction to complete).

The pool remains accessible during expansion.  Following a reboot or
export/import, the expansion resumes where it left off.

== After expansion ==

When the expansion completes, the additional space is available for use,
and is reflected in the `available` zfs property (as seen in `zfs list`,
`df`, etc).

Expansion does not change the number of failures that can be tolerated
without data loss (e.g. a RAIDZ2 is still a RAIDZ2 even after
expansion).

A RAIDZ vdev can be expanded multiple times.

After the expansion completes, old blocks remain with their old
data-to-parity ratio (e.g. 5-wide RAIDZ2, has 3 data to 2 parity), but
distributed among the larger set of disks.  New blocks will be written
with the new data-to-parity ratio (e.g. a 5-wide RAIDZ2 which has been
expanded once to 6-wide, has 4 data to 2 parity).  However, the RAIDZ
vdev's "assumed parity ratio" does not change, so slightly less space
than is expected may be reported for newly-written blocks, according to
`zfs list`, `df`, `ls -s`, and similar tools.

Sponsored-by: The FreeBSD Foundation
Sponsored-by: iXsystems, Inc.
Sponsored-by: vStack
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Authored-by: Matthew Ahrens <mahrens@delphix.com>
Contributions-by: Fedor Uporov <fuporov.vstack@gmail.com>
Contributions-by: Stuart Maybee <stuart.maybee@comcast.net>
Contributions-by: Thorsten Behrens <tbehrens@outlook.com>
Contributions-by: Fmstrat <nospam@nowsci.com>
Contributions-by: Don Brady <dev.fs.zfs@gmail.com>
Signed-off-by: Don Brady <dev.fs.zfs@gmail.com>
Closes #15022
2023-11-08 10:19:41 -08:00

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2012, 2018 by Delphix. All rights reserved.
* Copyright (c) 2021, Colm Buckley <colm@tuatha.org>
* Copyright (c) 2021, Klara Inc.
*/
#include <sys/zio.h>
#include <sys/spa.h>
#include <sys/zfs_acl.h>
#include <sys/zfs_ioctl.h>
#include <sys/fs/zfs.h>
#include "zfs_prop.h"
#if !defined(_KERNEL)
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#endif
static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];
static zprop_desc_t vdev_prop_table[VDEV_NUM_PROPS];
zprop_desc_t *
zpool_prop_get_table(void)
{
return (zpool_prop_table);
}
void
zpool_prop_init(void)
{
static const zprop_index_t boolean_table[] = {
{ "off", 0},
{ "on", 1},
{ NULL }
};
static const zprop_index_t failuremode_table[] = {
{ "wait", ZIO_FAILURE_MODE_WAIT },
{ "continue", ZIO_FAILURE_MODE_CONTINUE },
{ "panic", ZIO_FAILURE_MODE_PANIC },
{ NULL }
};
struct zfs_mod_supported_features *sfeatures =
zfs_mod_list_supported(ZFS_SYSFS_POOL_PROPERTIES);
/* string properties */
zprop_register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
ZFS_TYPE_POOL, "<path>", "ALTROOT", sfeatures);
zprop_register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
ZFS_TYPE_POOL, "<filesystem>", "BOOTFS", sfeatures);
zprop_register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL,
PROP_DEFAULT, ZFS_TYPE_POOL, "<file> | none", "CACHEFILE",
sfeatures);
zprop_register_string(ZPOOL_PROP_COMMENT, "comment", NULL,
PROP_DEFAULT, ZFS_TYPE_POOL, "<comment-string>", "COMMENT",
sfeatures);
zprop_register_string(ZPOOL_PROP_COMPATIBILITY, "compatibility",
"off", PROP_DEFAULT, ZFS_TYPE_POOL,
"<file[,file...]> | off | legacy", "COMPATIBILITY", sfeatures);
/* readonly number properties */
zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<size>", "SIZE", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<size>", "FREE", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_FREEING, "freeing", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<size>", "FREEING", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_CHECKPOINT, "checkpoint", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<size>", "CKPOINT", B_FALSE,
sfeatures);
zprop_register_number(ZPOOL_PROP_LEAKED, "leaked", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<size>", "LEAKED", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC", B_FALSE,
sfeatures);
zprop_register_number(ZPOOL_PROP_EXPANDSZ, "expandsize", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<size>", "EXPANDSZ", B_FALSE,
sfeatures);
zprop_register_number(ZPOOL_PROP_FRAGMENTATION, "fragmentation", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<percent>", "FRAG", B_FALSE,
sfeatures);
zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<size>", "CAP", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<guid>", "GUID", B_TRUE, sfeatures);
zprop_register_number(ZPOOL_PROP_LOAD_GUID, "load_guid", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<load_guid>", "LOAD_GUID",
B_TRUE, sfeatures);
zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
ZFS_TYPE_POOL, "<state>", "HEALTH", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
"DEDUP", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_BCLONEUSED, "bcloneused", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<size>",
"BCLONE_USED", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_BCLONESAVED, "bclonesaved", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<size>",
"BCLONE_SAVED", B_FALSE, sfeatures);
zprop_register_number(ZPOOL_PROP_BCLONERATIO, "bcloneratio", 0,
PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if cloned>",
"BCLONE_RATIO", B_FALSE, sfeatures);
/* default number properties */
zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION", B_FALSE,
sfeatures);
zprop_register_number(ZPOOL_PROP_ASHIFT, "ashift", 0, PROP_DEFAULT,
ZFS_TYPE_POOL, "<ashift, 9-16, or 0=default>", "ASHIFT", B_FALSE,
sfeatures);
/* default index (boolean) properties */
zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
boolean_table, sfeatures);
zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table,
sfeatures);
zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
boolean_table, sfeatures);
zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table,
sfeatures);
zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table,
sfeatures);
zprop_register_index(ZPOOL_PROP_MULTIHOST, "multihost", 0,
PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "MULTIHOST",
boolean_table, sfeatures);
/* default index properties */
zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
"wait | continue | panic", "FAILMODE", failuremode_table,
sfeatures);
zprop_register_index(ZPOOL_PROP_AUTOTRIM, "autotrim",
SPA_AUTOTRIM_OFF, PROP_DEFAULT, ZFS_TYPE_POOL,
"on | off", "AUTOTRIM", boolean_table, sfeatures);
/* hidden properties */
zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_POOL, "NAME", B_TRUE, sfeatures);
zprop_register_hidden(ZPOOL_PROP_MAXBLOCKSIZE, "maxblocksize",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE",
B_FALSE, sfeatures);
zprop_register_hidden(ZPOOL_PROP_TNAME, "tname", PROP_TYPE_STRING,
PROP_ONETIME, ZFS_TYPE_POOL, "TNAME", B_TRUE, sfeatures);
zprop_register_hidden(ZPOOL_PROP_MAXDNODESIZE, "maxdnodesize",
PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXDNODESIZE",
B_FALSE, sfeatures);
zprop_register_hidden(ZPOOL_PROP_DEDUPDITTO, "dedupditto",
PROP_TYPE_NUMBER, PROP_DEFAULT, ZFS_TYPE_POOL, "DEDUPDITTO",
B_FALSE, sfeatures);
zfs_mod_list_supported_free(sfeatures);
}
/*
* Given a property name and its type, returns the corresponding property ID.
*/
zpool_prop_t
zpool_name_to_prop(const char *propname)
{
return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
}
/*
* Given a pool property ID, returns the corresponding name.
* Assuming the pool property ID is valid.
*/
const char *
zpool_prop_to_name(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_name);
}
zprop_type_t
zpool_prop_get_type(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_proptype);
}
boolean_t
zpool_prop_readonly(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
}
boolean_t
zpool_prop_setonce(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_attr == PROP_ONETIME);
}
const char *
zpool_prop_default_string(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_strdefault);
}
uint64_t
zpool_prop_default_numeric(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_numdefault);
}
/*
* Returns true if this is a valid feature@ property.
*/
boolean_t
zpool_prop_feature(const char *name)
{
static const char *prefix = "feature@";
return (strncmp(name, prefix, strlen(prefix)) == 0);
}
/*
* Returns true if this is a valid unsupported@ property.
*/
boolean_t
zpool_prop_unsupported(const char *name)
{
static const char *prefix = "unsupported@";
return (strncmp(name, prefix, strlen(prefix)) == 0);
}
int
zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
uint64_t *index)
{
return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
}
int
zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
const char **string)
{
return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
}
uint64_t
zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
{
return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
}
#ifndef _KERNEL
#include <libzfs.h>
const char *
zpool_prop_values(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_values);
}
const char *
zpool_prop_column_name(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_colname);
}
boolean_t
zpool_prop_align_right(zpool_prop_t prop)
{
return (zpool_prop_table[prop].pd_rightalign);
}
#endif
zprop_desc_t *
vdev_prop_get_table(void)
{
return (vdev_prop_table);
}
void
vdev_prop_init(void)
{
static const zprop_index_t boolean_table[] = {
{ "off", 0},
{ "on", 1},
{ NULL }
};
static const zprop_index_t boolean_na_table[] = {
{ "off", 0},
{ "on", 1},
{ "-", 2}, /* ZPROP_BOOLEAN_NA */
{ NULL }
};
struct zfs_mod_supported_features *sfeatures =
zfs_mod_list_supported(ZFS_SYSFS_VDEV_PROPERTIES);
/* string properties */
zprop_register_string(VDEV_PROP_COMMENT, "comment", NULL,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<comment-string>", "COMMENT",
sfeatures);
zprop_register_string(VDEV_PROP_PATH, "path", NULL,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<device-path>", "PATH", sfeatures);
zprop_register_string(VDEV_PROP_DEVID, "devid", NULL,
PROP_READONLY, ZFS_TYPE_VDEV, "<devid>", "DEVID", sfeatures);
zprop_register_string(VDEV_PROP_PHYS_PATH, "physpath", NULL,
PROP_READONLY, ZFS_TYPE_VDEV, "<physpath>", "PHYSPATH", sfeatures);
zprop_register_string(VDEV_PROP_ENC_PATH, "encpath", NULL,
PROP_READONLY, ZFS_TYPE_VDEV, "<encpath>", "ENCPATH", sfeatures);
zprop_register_string(VDEV_PROP_FRU, "fru", NULL,
PROP_READONLY, ZFS_TYPE_VDEV, "<fru>", "FRU", sfeatures);
zprop_register_string(VDEV_PROP_PARENT, "parent", NULL,
PROP_READONLY, ZFS_TYPE_VDEV, "<parent>", "PARENT", sfeatures);
zprop_register_string(VDEV_PROP_CHILDREN, "children", NULL,
PROP_READONLY, ZFS_TYPE_VDEV, "<child[,...]>", "CHILDREN",
sfeatures);
/* readonly number properties */
zprop_register_number(VDEV_PROP_SIZE, "size", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<size>", "SIZE", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_FREE, "free", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<size>", "FREE", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_ALLOCATED, "allocated", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<size>", "ALLOC", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_EXPANDSZ, "expandsize", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<size>", "EXPANDSZ", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_FRAGMENTATION, "fragmentation", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<percent>", "FRAG", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<size>", "CAP", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_GUID, "guid", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<guid>", "GUID", B_TRUE, sfeatures);
zprop_register_number(VDEV_PROP_STATE, "state", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<state>", "STATE", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_BOOTSIZE, "bootsize", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<size>", "BOOTSIZE", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_ASIZE, "asize", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<asize>", "ASIZE", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_PSIZE, "psize", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<psize>", "PSIZE", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_ASHIFT, "ashift", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<ashift>", "ASHIFT", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_PARITY, "parity", 0, PROP_READONLY,
ZFS_TYPE_VDEV, "<parity>", "PARITY", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_NUMCHILDREN, "numchildren", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<number-of-children>", "NUMCHILD",
B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_READ_ERRORS, "read_errors", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<errors>", "RDERR", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_WRITE_ERRORS, "write_errors", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<errors>", "WRERR", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_CHECKSUM_ERRORS, "checksum_errors", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<errors>", "CKERR", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_INITIALIZE_ERRORS,
"initialize_errors", 0, PROP_READONLY, ZFS_TYPE_VDEV, "<errors>",
"INITERR", B_FALSE, sfeatures);
zprop_register_number(VDEV_PROP_OPS_NULL, "null_ops", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<operations>", "NULLOP", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_OPS_READ, "read_ops", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<operations>", "READOP", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_OPS_WRITE, "write_ops", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<operations>", "WRITEOP", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_OPS_FREE, "free_ops", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<operations>", "FREEOP", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_OPS_CLAIM, "claim_ops", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<operations>", "CLAIMOP", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_OPS_TRIM, "trim_ops", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<operations>", "TRIMOP", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_BYTES_NULL, "null_bytes", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<bytes>", "NULLBYTE", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_BYTES_READ, "read_bytes", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<bytes>", "READBYTE", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_BYTES_WRITE, "write_bytes", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<bytes>", "WRITEBYTE", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_BYTES_FREE, "free_bytes", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<bytes>", "FREEBYTE", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_BYTES_CLAIM, "claim_bytes", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<bytes>", "CLAIMBYTE", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_BYTES_TRIM, "trim_bytes", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<bytes>", "TRIMBYTE", B_FALSE,
sfeatures);
/* default numeric properties */
zprop_register_number(VDEV_PROP_CHECKSUM_N, "checksum_n", UINT64_MAX,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<events>", "CKSUM_N", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_CHECKSUM_T, "checksum_t", UINT64_MAX,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<seconds>", "CKSUM_T", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_IO_N, "io_n", UINT64_MAX,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<events>", "IO_N", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_IO_T, "io_t", UINT64_MAX,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<seconds>", "IO_T", B_FALSE,
sfeatures);
/* default index (boolean) properties */
zprop_register_index(VDEV_PROP_REMOVING, "removing", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "on | off", "REMOVING",
boolean_table, sfeatures);
zprop_register_index(VDEV_PROP_ALLOCATING, "allocating", 1,
PROP_DEFAULT, ZFS_TYPE_VDEV, "on | off", "ALLOCATING",
boolean_na_table, sfeatures);
zprop_register_index(VDEV_PROP_RAIDZ_EXPANDING, "raidz_expanding", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "on | off", "RAIDZ_EXPANDING",
boolean_table, sfeatures);
/* default index properties */
zprop_register_index(VDEV_PROP_FAILFAST, "failfast", B_TRUE,
PROP_DEFAULT, ZFS_TYPE_VDEV, "on | off", "FAILFAST", boolean_table,
sfeatures);
/* hidden properties */
zprop_register_hidden(VDEV_PROP_NAME, "name", PROP_TYPE_STRING,
PROP_READONLY, ZFS_TYPE_VDEV, "NAME", B_TRUE, sfeatures);
zfs_mod_list_supported_free(sfeatures);
}
/*
* Given a property name and its type, returns the corresponding property ID.
*/
vdev_prop_t
vdev_name_to_prop(const char *propname)
{
return (zprop_name_to_prop(propname, ZFS_TYPE_VDEV));
}
/*
* Returns true if this is a valid user-defined property (one with a ':').
*/
boolean_t
vdev_prop_user(const char *name)
{
int i;
char c;
boolean_t foundsep = B_FALSE;
for (i = 0; i < strlen(name); i++) {
c = name[i];
if (!zprop_valid_char(c))
return (B_FALSE);
if (c == ':')
foundsep = B_TRUE;
}
return (foundsep);
}
/*
* Given a pool property ID, returns the corresponding name.
* Assuming the pool property ID is valid.
*/
const char *
vdev_prop_to_name(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_name);
}
zprop_type_t
vdev_prop_get_type(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_proptype);
}
boolean_t
vdev_prop_readonly(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_attr == PROP_READONLY);
}
const char *
vdev_prop_default_string(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_strdefault);
}
uint64_t
vdev_prop_default_numeric(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_numdefault);
}
int
vdev_prop_string_to_index(vdev_prop_t prop, const char *string,
uint64_t *index)
{
return (zprop_string_to_index(prop, string, index, ZFS_TYPE_VDEV));
}
int
vdev_prop_index_to_string(vdev_prop_t prop, uint64_t index,
const char **string)
{
return (zprop_index_to_string(prop, index, string, ZFS_TYPE_VDEV));
}
/*
* Returns true if this is a valid vdev property.
*/
boolean_t
zpool_prop_vdev(const char *name)
{
return (vdev_name_to_prop(name) != VDEV_PROP_INVAL);
}
uint64_t
vdev_prop_random_value(vdev_prop_t prop, uint64_t seed)
{
return (zprop_random_value(prop, seed, ZFS_TYPE_VDEV));
}
#ifndef _KERNEL
const char *
vdev_prop_values(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_values);
}
const char *
vdev_prop_column_name(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_colname);
}
boolean_t
vdev_prop_align_right(vdev_prop_t prop)
{
return (vdev_prop_table[prop].pd_rightalign);
}
#endif
#if defined(_KERNEL)
/* zpool property functions */
EXPORT_SYMBOL(zpool_prop_init);
EXPORT_SYMBOL(zpool_prop_get_type);
EXPORT_SYMBOL(zpool_prop_get_table);
/* vdev property functions */
EXPORT_SYMBOL(vdev_prop_init);
EXPORT_SYMBOL(vdev_prop_get_type);
EXPORT_SYMBOL(vdev_prop_get_table);
/* Pool property functions shared between libzfs and kernel. */
EXPORT_SYMBOL(zpool_name_to_prop);
EXPORT_SYMBOL(zpool_prop_to_name);
EXPORT_SYMBOL(zpool_prop_default_string);
EXPORT_SYMBOL(zpool_prop_default_numeric);
EXPORT_SYMBOL(zpool_prop_readonly);
EXPORT_SYMBOL(zpool_prop_feature);
EXPORT_SYMBOL(zpool_prop_unsupported);
EXPORT_SYMBOL(zpool_prop_index_to_string);
EXPORT_SYMBOL(zpool_prop_string_to_index);
EXPORT_SYMBOL(zpool_prop_vdev);
/* vdev property functions shared between libzfs and kernel. */
EXPORT_SYMBOL(vdev_name_to_prop);
EXPORT_SYMBOL(vdev_prop_user);
EXPORT_SYMBOL(vdev_prop_to_name);
EXPORT_SYMBOL(vdev_prop_default_string);
EXPORT_SYMBOL(vdev_prop_default_numeric);
EXPORT_SYMBOL(vdev_prop_readonly);
EXPORT_SYMBOL(vdev_prop_index_to_string);
EXPORT_SYMBOL(vdev_prop_string_to_index);
#endif
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