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ca5fd24984
While we initially allowed you to set your ashift as large as 17 (SPA_MAXBLOCKSIZE) that is actually unsafe. What wasn't considered at the time is that each uberblock written to the vdev label ring buffer will be of this size. Now the buffer is statically sized to 128k and we need to be able to fit several uberblocks in it. With a large ashift that becomes a problem. Therefore I'm reducing the maximum configurable ashift value to 12. This is large enough for the 4k sector drives and small enough that we can still keep the most recent 32 uberblock in the vdev label ring buffer. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #425
223 lines
6.4 KiB
C
223 lines
6.4 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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*/
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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 <sys/systm.h>
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#else
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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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/* 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_ALLOCATED, "allocated", 0,
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PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC");
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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_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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/* readonly onetime number properties */
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zprop_register_number(ZPOOL_PROP_ASHIFT, "ashift", 0, PROP_ONETIME,
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ZFS_TYPE_POOL, "<ashift, 9-12, or 0=default>", "ASHIFT");
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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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/* 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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/* 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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}
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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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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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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) && defined(HAVE_SPL)
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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_index_to_string);
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EXPORT_SYMBOL(zpool_prop_string_to_index);
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#endif
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