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mirror_zfs/module/zcommon/zpool_prop.c
Allan Jude c7ada64bb6
ddt: dedup table quota enforcement 
This adds two new pool properties:
- dedup_table_size, the total size of all DDTs on the pool; and
- dedup_table_quota, the maximum possible size of all DDTs in the pool

When set, quota will be enforced by checking when a new entry is about
to be created. If the pool is over its dedup quota, the entry won't be
created, and the corresponding write will be converted to a regular
non-dedup write. Note that existing entries can be updated (ie their
refcounts changed), as that reuses the space rather than requiring more.

dedup_table_quota can be set to 'auto', which will set it based on the
size of the devices backing the "dedup" allocation device. This makes it
possible to limit the DDTs to the size of a dedup vdev only, such that
when the device fills, no new blocks are deduplicated.

Sponsored-by: iXsystems, Inc.
Sponsored-By: Klara Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Don Brady <don.brady@klarasystems.com>
Co-authored-by: Don Brady <don.brady@klarasystems.com>
Co-authored-by: Rob Wing <rob.wing@klarasystems.com>
Co-authored-by: Sean Eric Fagan <sean.fagan@klarasystems.com>
Closes #15889
2024-07-25 09:47:36 -07:00

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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, 2023, 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);
zprop_register_number(ZPOOL_PROP_DEDUP_TABLE_SIZE, "dedup_table_size",
0, PROP_READONLY, ZFS_TYPE_POOL, "<size>", "DDTSIZE", 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);
zprop_register_number(ZPOOL_PROP_DEDUP_TABLE_QUOTA, "dedup_table_quota",
UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_POOL, "<size>", "DDTQUOTA",
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_TRIM_ERRORS, "trim_errors", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<errors>", "TRIMERR", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_SLOW_IOS, "slow_ios", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "<slowios>", "SLOW", 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);
zprop_register_number(VDEV_PROP_SLOW_IO_N, "slow_io_n", UINT64_MAX,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<events>", "SLOW_IO_N", B_FALSE,
sfeatures);
zprop_register_number(VDEV_PROP_SLOW_IO_T, "slow_io_t", UINT64_MAX,
PROP_DEFAULT, ZFS_TYPE_VDEV, "<seconds>", "SLOW_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);
zprop_register_index(VDEV_PROP_TRIM_SUPPORT, "trim_support", 0,
PROP_READONLY, ZFS_TYPE_VDEV, "on | off", "TRIMSUP",
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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