spa.c revision b7b97454b9b1f6625e7e655e9651e744a8dee09d
1fa9e406ahrens/*
2fa9e406ahrens * CDDL HEADER START
3fa9e406ahrens *
4fa9e406ahrens * The contents of this file are subject to the terms of the
5ea8dc4beschrock * Common Development and Distribution License (the "License").
6ea8dc4beschrock * You may not use this file except in compliance with the License.
7fa9e406ahrens *
8fa9e406ahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9fa9e406ahrens * or http://www.opensolaris.org/os/licensing.
10fa9e406ahrens * See the License for the specific language governing permissions
11fa9e406ahrens * and limitations under the License.
12fa9e406ahrens *
13fa9e406ahrens * When distributing Covered Code, include this CDDL HEADER in each
14fa9e406ahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15fa9e406ahrens * If applicable, add the following below this CDDL HEADER, with the
16fa9e406ahrens * fields enclosed by brackets "[]" replaced with your own identifying
17fa9e406ahrens * information: Portions Copyright [yyyy] [name of copyright owner]
18fa9e406ahrens *
19fa9e406ahrens * CDDL HEADER END
20fa9e406ahrens */
2199653d4eschrock
22fa9e406ahrens/*
23b01c3b5eschrock * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24fa9e406ahrens * Use is subject to license terms.
25fa9e406ahrens */
26fa9e406ahrens
27fa9e406ahrens#pragma ident	"%Z%%M%	%I%	%E% SMI"
28fa9e406ahrens
29fa9e406ahrens/*
30fa9e406ahrens * This file contains all the routines used when modifying on-disk SPA state.
31fa9e406ahrens * This includes opening, importing, destroying, exporting a pool, and syncing a
32fa9e406ahrens * pool.
33fa9e406ahrens */
34fa9e406ahrens
35fa9e406ahrens#include <sys/zfs_context.h>
36ea8dc4beschrock#include <sys/fm/fs/zfs.h>
37fa9e406ahrens#include <sys/spa_impl.h>
38fa9e406ahrens#include <sys/zio.h>
39fa9e406ahrens#include <sys/zio_checksum.h>
40fa9e406ahrens#include <sys/zio_compress.h>
41fa9e406ahrens#include <sys/dmu.h>
42fa9e406ahrens#include <sys/dmu_tx.h>
43fa9e406ahrens#include <sys/zap.h>
44fa9e406ahrens#include <sys/zil.h>
45fa9e406ahrens#include <sys/vdev_impl.h>
46fa9e406ahrens#include <sys/metaslab.h>
47fa9e406ahrens#include <sys/uberblock_impl.h>
48fa9e406ahrens#include <sys/txg.h>
49fa9e406ahrens#include <sys/avl.h>
50fa9e406ahrens#include <sys/dmu_traverse.h>
51b1b8ab3lling#include <sys/dmu_objset.h>
52fa9e406ahrens#include <sys/unique.h>
53fa9e406ahrens#include <sys/dsl_pool.h>
54b1b8ab3lling#include <sys/dsl_dataset.h>
55fa9e406ahrens#include <sys/dsl_dir.h>
56fa9e406ahrens#include <sys/dsl_prop.h>
57b1b8ab3lling#include <sys/dsl_synctask.h>
58fa9e406ahrens#include <sys/fs/zfs.h>
59fa94a07brendan#include <sys/arc.h>
60fa9e406ahrens#include <sys/callb.h>
619517395ek#include <sys/systeminfo.h>
629517395ek#include <sys/sunddi.h>
63fa9e406ahrens
64990b485lling#include "zfs_prop.h"
65b7b9745perrin#include "zfs_comutil.h"
66990b485lling
67416e0cdekint zio_taskq_threads = 8;
68416e0cdek
69990b485llingstatic void spa_sync_props(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx);
70990b485lling
71990b485lling/*
72990b485lling * ==========================================================================
73990b485lling * SPA properties routines
74990b485lling * ==========================================================================
75990b485lling */
76990b485lling
77990b485lling/*
78990b485lling * Add a (source=src, propname=propval) list to an nvlist.
79990b485lling */
80990b485llingstatic int
81990b485llingspa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval,
82990b485lling    uint64_t intval, zprop_source_t src)
83990b485lling{
84990b485lling	const char *propname = zpool_prop_to_name(prop);
85990b485lling	nvlist_t *propval;
86990b485lling	int err = 0;
87990b485lling
88990b485lling	if (err = nvlist_alloc(&propval, NV_UNIQUE_NAME, KM_SLEEP))
89990b485lling		return (err);
90990b485lling
91990b485lling	if (err = nvlist_add_uint64(propval, ZPROP_SOURCE, src))
92990b485lling		goto out;
93990b485lling
94990b485lling	if (strval != NULL) {
95990b485lling		if (err = nvlist_add_string(propval, ZPROP_VALUE, strval))
96990b485lling			goto out;
97990b485lling	} else {
98990b485lling		if (err = nvlist_add_uint64(propval, ZPROP_VALUE, intval))
99990b485lling			goto out;
100990b485lling	}
101990b485lling
102990b485lling	err = nvlist_add_nvlist(nvl, propname, propval);
103990b485llingout:
104990b485lling	nvlist_free(propval);
105990b485lling	return (err);
106990b485lling}
107990b485lling
108990b485lling/*
109990b485lling * Get property values from the spa configuration.
110990b485lling */
111990b485llingstatic int
112990b485llingspa_prop_get_config(spa_t *spa, nvlist_t **nvp)
113990b485lling{
114990b485lling	uint64_t size = spa_get_space(spa);
115990b485lling	uint64_t used = spa_get_alloc(spa);
116990b485lling	uint64_t cap, version;
117990b485lling	zprop_source_t src = ZPROP_SRC_NONE;
118990b485lling	int err;
1192f8aaabeschrock	char *cachefile;
1202f8aaabeschrock	size_t len;
121990b485lling
122990b485lling	/*
123990b485lling	 * readonly properties
124990b485lling	 */
125990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa->spa_name,
126990b485lling	    0, src))
127990b485lling		return (err);
128990b485lling
129990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_SIZE, NULL, size, src))
130990b485lling		return (err);
131990b485lling
132990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_USED, NULL, used, src))
133990b485lling		return (err);
134990b485lling
135990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_AVAILABLE, NULL,
136990b485lling	    size - used, src))
137990b485lling		return (err);
138990b485lling
139990b485lling	cap = (size == 0) ? 0 : (used * 100 / size);
140990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_CAPACITY, NULL, cap, src))
141990b485lling		return (err);
142990b485lling
143990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL,
144990b485lling	    spa_guid(spa), src))
145990b485lling		return (err);
146990b485lling
147990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL,
148990b485lling	    spa->spa_root_vdev->vdev_state, src))
149990b485lling		return (err);
150990b485lling
151990b485lling	/*
152990b485lling	 * settable properties that are not stored in the pool property object.
153990b485lling	 */
154990b485lling	version = spa_version(spa);
155990b485lling	if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION))
156990b485lling		src = ZPROP_SRC_DEFAULT;
157990b485lling	else
158990b485lling		src = ZPROP_SRC_LOCAL;
159990b485lling	if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL,
160990b485lling	    version, src))
161990b485lling		return (err);
162990b485lling
163990b485lling	if (spa->spa_root != NULL) {
164990b485lling		src = ZPROP_SRC_LOCAL;
165990b485lling		if (err = spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT,
166990b485lling		    spa->spa_root, 0, src))
167990b485lling			return (err);
168990b485lling	}
169990b485lling
1702f8aaabeschrock	if (spa->spa_config_dir != NULL) {
1712f8aaabeschrock		if (strcmp(spa->spa_config_dir, "none") == 0) {
1722f8aaabeschrock			err = spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
1732f8aaabeschrock			    spa->spa_config_dir, 0, ZPROP_SRC_LOCAL);
1742f8aaabeschrock		} else {
1752f8aaabeschrock			len = strlen(spa->spa_config_dir) +
1762f8aaabeschrock			    strlen(spa->spa_config_file) + 2;
1772f8aaabeschrock			cachefile = kmem_alloc(len, KM_SLEEP);
1782f8aaabeschrock			(void) snprintf(cachefile, len, "%s/%s",
1792f8aaabeschrock			    spa->spa_config_dir, spa->spa_config_file);
1802f8aaabeschrock			err = spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
1812f8aaabeschrock			    cachefile, 0, ZPROP_SRC_LOCAL);
1822f8aaabeschrock			kmem_free(cachefile, len);
1832f8aaabeschrock		}
1842f8aaabeschrock
1852f8aaabeschrock		if (err)
1862f8aaabeschrock			return (err);
1872f8aaabeschrock	}
188990b485lling
189990b485lling	return (0);
190990b485lling}
191990b485lling
192990b485lling/*
193990b485lling * Get zpool property values.
194990b485lling */
195990b485llingint
196990b485llingspa_prop_get(spa_t *spa, nvlist_t **nvp)
197990b485lling{
198990b485lling	zap_cursor_t zc;
199990b485lling	zap_attribute_t za;
200990b485lling	objset_t *mos = spa->spa_meta_objset;
201990b485lling	int err;
202990b485lling
203990b485lling	if (err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP))
204990b485lling		return (err);
205990b485lling
206990b485lling	/*
207990b485lling	 * Get properties from the spa config.
208990b485lling	 */
209990b485lling	if (err = spa_prop_get_config(spa, nvp))
210990b485lling		goto out;
211990b485lling
212990b485lling	mutex_enter(&spa->spa_props_lock);
213990b485lling	/* If no pool property object, no more prop to get. */
214990b485lling	if (spa->spa_pool_props_object == 0) {
215990b485lling		mutex_exit(&spa->spa_props_lock);
216990b485lling		return (0);
217990b485lling	}
218990b485lling
219990b485lling	/*
220990b485lling	 * Get properties from the MOS pool property object.
221990b485lling	 */
222990b485lling	for (zap_cursor_init(&zc, mos, spa->spa_pool_props_object);
223990b485lling	    (err = zap_cursor_retrieve(&zc, &za)) == 0;
224990b485lling	    zap_cursor_advance(&zc)) {
225990b485lling		uint64_t intval = 0;
226990b485lling		char *strval = NULL;
227990b485lling		zprop_source_t src = ZPROP_SRC_DEFAULT;
228990b485lling		zpool_prop_t prop;
229990b485lling
230990b485lling		if ((prop = zpool_name_to_prop(za.za_name)) == ZPROP_INVAL)
231990b485lling			continue;
232990b485lling
233990b485lling		switch (za.za_integer_length) {
234990b485lling		case 8:
235990b485lling			/* integer property */
236990b485lling			if (za.za_first_integer !=
237990b485lling			    zpool_prop_default_numeric(prop))
238990b485lling				src = ZPROP_SRC_LOCAL;
239990b485lling
240990b485lling			if (prop == ZPOOL_PROP_BOOTFS) {
241990b485lling				dsl_pool_t *dp;
242990b485lling				dsl_dataset_t *ds = NULL;
243990b485lling
244990b485lling				dp = spa_get_dsl(spa);
245990b485lling				rw_enter(&dp->dp_config_rwlock, RW_READER);
246990b485lling				if (err = dsl_dataset_open_obj(dp,
247990b485lling				    za.za_first_integer, NULL, DS_MODE_NONE,
248990b485lling				    FTAG, &ds)) {
249990b485lling					rw_exit(&dp->dp_config_rwlock);
250990b485lling					break;
251990b485lling				}
252990b485lling
253990b485lling				strval = kmem_alloc(
254990b485lling				    MAXNAMELEN + strlen(MOS_DIR_NAME) + 1,
255990b485lling				    KM_SLEEP);
256990b485lling				dsl_dataset_name(ds, strval);
257990b485lling				dsl_dataset_close(ds, DS_MODE_NONE, FTAG);
258990b485lling				rw_exit(&dp->dp_config_rwlock);
259990b485lling			} else {
260990b485lling				strval = NULL;
261990b485lling				intval = za.za_first_integer;
262990b485lling			}
263990b485lling
264990b485lling			err = spa_prop_add_list(*nvp, prop, strval,
265990b485lling			    intval, src);
266990b485lling
267990b485lling			if (strval != NULL)
268990b485lling				kmem_free(strval,
269990b485lling				    MAXNAMELEN + strlen(MOS_DIR_NAME) + 1);
270990b485lling
271990b485lling			break;
272990b485lling
273990b485lling		case 1:
274990b485lling			/* string property */
275990b485lling			strval = kmem_alloc(za.za_num_integers, KM_SLEEP);
276990b485lling			err = zap_lookup(mos, spa->spa_pool_props_object,
277990b485lling			    za.za_name, 1, za.za_num_integers, strval);
278990b485lling			if (err) {
279990b485lling				kmem_free(strval, za.za_num_integers);
280990b485lling				break;
281990b485lling			}
282990b485lling			err = spa_prop_add_list(*nvp, prop, strval, 0, src);
283990b485lling			kmem_free(strval, za.za_num_integers);
284990b485lling			break;
285990b485lling
286990b485lling		default:
287990b485lling			break;
288990b485lling		}
289990b485lling	}
290990b485lling	zap_cursor_fini(&zc);
291990b485lling	mutex_exit(&spa->spa_props_lock);
292990b485llingout:
293990b485lling	if (err && err != ENOENT) {
294990b485lling		nvlist_free(*nvp);
295990b485lling		return (err);
296990b485lling	}
297990b485lling
298990b485lling	return (0);
299990b485lling}
300990b485lling
301990b485lling/*
302990b485lling * Validate the given pool properties nvlist and modify the list
303990b485lling * for the property values to be set.
304990b485lling */
305990b485llingstatic int
306990b485llingspa_prop_validate(spa_t *spa, nvlist_t *props)
307990b485lling{
308990b485lling	nvpair_t *elem;
309990b485lling	int error = 0, reset_bootfs = 0;
310990b485lling	uint64_t objnum;
311990b485lling
312990b485lling	elem = NULL;
313990b485lling	while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
314990b485lling		zpool_prop_t prop;
315990b485lling		char *propname, *strval;
316990b485lling		uint64_t intval;
317990b485lling		vdev_t *rvdev;
318990b485lling		char *vdev_type;
319990b485lling		objset_t *os;
3202f8aaabeschrock		char *slash;
321990b485lling
322990b485lling		propname = nvpair_name(elem);
323990b485lling
324990b485lling		if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL)
325990b485lling			return (EINVAL);
326990b485lling
327990b485lling		switch (prop) {
328990b485lling		case ZPOOL_PROP_VERSION:
329990b485lling			error = nvpair_value_uint64(elem, &intval);
330990b485lling			if (!error &&
331990b485lling			    (intval < spa_version(spa) || intval > SPA_VERSION))
332990b485lling				error = EINVAL;
333990b485lling			break;
334990b485lling
335990b485lling		case ZPOOL_PROP_DELEGATION:
336990b485lling		case ZPOOL_PROP_AUTOREPLACE:
337990b485lling			error = nvpair_value_uint64(elem, &intval);
338990b485lling			if (!error && intval > 1)
339990b485lling				error = EINVAL;
340990b485lling			break;
341990b485lling
342990b485lling		case ZPOOL_PROP_BOOTFS:
343990b485lling			if (spa_version(spa) < SPA_VERSION_BOOTFS) {
344990b485lling				error = ENOTSUP;
345990b485lling				break;
346990b485lling			}
347990b485lling
348990b485lling			/*
349990b485lling			 * A bootable filesystem can not be on a RAIDZ pool
350990b485lling			 * nor a striped pool with more than 1 device.
351990b485lling			 */
352990b485lling			rvdev = spa->spa_root_vdev;
353990b485lling			vdev_type =
354990b485lling			    rvdev->vdev_child[0]->vdev_ops->vdev_op_type;
355990b485lling			if (rvdev->vdev_children > 1 ||
356990b485lling			    strcmp(vdev_type, VDEV_TYPE_RAIDZ) == 0 ||
357990b485lling			    strcmp(vdev_type, VDEV_TYPE_MISSING) == 0) {
358990b485lling				error = ENOTSUP;
359990b485lling				break;
360990b485lling			}
361990b485lling
362990b485lling			reset_bootfs = 1;
363990b485lling
364990b485lling			error = nvpair_value_string(elem, &strval);
365990b485lling
366990b485lling			if (!error) {
367990b485lling				if (strval == NULL || strval[0] == '\0') {
368990b485lling					objnum = zpool_prop_default_numeric(
369990b485lling					    ZPOOL_PROP_BOOTFS);
370990b485lling					break;
371990b485lling				}
372990b485lling
373990b485lling				if (error = dmu_objset_open(strval, DMU_OST_ZFS,
374990b485lling				    DS_MODE_STANDARD | DS_MODE_READONLY, &os))
375990b485lling					break;
376990b485lling				objnum = dmu_objset_id(os);
377990b485lling				dmu_objset_close(os);
378990b485lling			}
379990b485lling			break;
3800a4e951gw		case ZPOOL_PROP_FAILUREMODE:
3810a4e951gw			error = nvpair_value_uint64(elem, &intval);
3820a4e951gw			if (!error && (intval < ZIO_FAILURE_MODE_WAIT ||
3830a4e951gw			    intval > ZIO_FAILURE_MODE_PANIC))
3840a4e951gw				error = EINVAL;
3850a4e951gw
3860a4e951gw			/*
3870a4e951gw			 * This is a special case which only occurs when
3880a4e951gw			 * the pool has completely failed. This allows
3890a4e951gw			 * the user to change the in-core failmode property
3900a4e951gw			 * without syncing it out to disk (I/Os might
3910a4e951gw			 * currently be blocked). We do this by returning
3920a4e951gw			 * EIO to the caller (spa_prop_set) to trick it
3930a4e951gw			 * into thinking we encountered a property validation
3940a4e951gw			 * error.
3950a4e951gw			 */
3960a4e951gw			if (!error && spa_state(spa) == POOL_STATE_IO_FAILURE) {
3970a4e951gw				spa->spa_failmode = intval;
3980a4e951gw				error = EIO;
3990a4e951gw			}
4000a4e951gw			break;
4012f8aaabeschrock
4022f8aaabeschrock		case ZPOOL_PROP_CACHEFILE:
4032f8aaabeschrock			if ((error = nvpair_value_string(elem, &strval)) != 0)
4042f8aaabeschrock				break;
4052f8aaabeschrock
4062f8aaabeschrock			if (strval[0] == '\0')
4072f8aaabeschrock				break;
4082f8aaabeschrock
4092f8aaabeschrock			if (strcmp(strval, "none") == 0)
4102f8aaabeschrock				break;
4112f8aaabeschrock
4122f8aaabeschrock			if (strval[0] != '/') {
4132f8aaabeschrock				error = EINVAL;
4142f8aaabeschrock				break;
4152f8aaabeschrock			}
4162f8aaabeschrock
4172f8aaabeschrock			slash = strrchr(strval, '/');
4182f8aaabeschrock			ASSERT(slash != NULL);
4192f8aaabeschrock
4202f8aaabeschrock			if (slash[1] == '\0' || strcmp(slash, "/.") == 0 ||
4212f8aaabeschrock			    strcmp(slash, "/..") == 0)
4222f8aaabeschrock				error = EINVAL;
4232f8aaabeschrock			break;
424990b485lling		}
425990b485lling
426990b485lling		if (error)
427990b485lling			break;
428990b485lling	}
429990b485lling
430990b485lling	if (!error && reset_bootfs) {
431990b485lling		error = nvlist_remove(props,
432990b485lling		    zpool_prop_to_name(ZPOOL_PROP_BOOTFS), DATA_TYPE_STRING);
433990b485lling
434990b485lling		if (!error) {
435990b485lling			error = nvlist_add_uint64(props,
436990b485lling			    zpool_prop_to_name(ZPOOL_PROP_BOOTFS), objnum);
437990b485lling		}
438990b485lling	}
439990b485lling
440990b485lling	return (error);
441990b485lling}
442990b485lling
443990b485llingint
444990b485llingspa_prop_set(spa_t *spa, nvlist_t *nvp)
445990b485lling{
446990b485lling	int error;
447990b485lling
448990b485lling	if ((error = spa_prop_validate(spa, nvp)) != 0)
449990b485lling		return (error);
450990b485lling
451990b485lling	return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_sync_props,
452990b485lling	    spa, nvp, 3));
453990b485lling}
454990b485lling
455990b485lling/*
456990b485lling * If the bootfs property value is dsobj, clear it.
457990b485lling */
458990b485llingvoid
459990b485llingspa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx)
460990b485lling{
461990b485lling	if (spa->spa_bootfs == dsobj && spa->spa_pool_props_object != 0) {
462990b485lling		VERIFY(zap_remove(spa->spa_meta_objset,
463990b485lling		    spa->spa_pool_props_object,
464990b485lling		    zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0);
465990b485lling		spa->spa_bootfs = 0;
466990b485lling	}
467990b485lling}
468990b485lling
469fa9e406ahrens/*
470fa9e406ahrens * ==========================================================================
471fa9e406ahrens * SPA state manipulation (open/create/destroy/import/export)
472fa9e406ahrens * ==========================================================================
473fa9e406ahrens */
474fa9e406ahrens
475ea8dc4beschrockstatic int
476ea8dc4beschrockspa_error_entry_compare(const void *a, const void *b)
477ea8dc4beschrock{
478ea8dc4beschrock	spa_error_entry_t *sa = (spa_error_entry_t *)a;
479ea8dc4beschrock	spa_error_entry_t *sb = (spa_error_entry_t *)b;
480ea8dc4beschrock	int ret;
481ea8dc4beschrock
482ea8dc4beschrock	ret = bcmp(&sa->se_bookmark, &sb->se_bookmark,
483ea8dc4beschrock	    sizeof (zbookmark_t));
484ea8dc4beschrock
485ea8dc4beschrock	if (ret < 0)
486ea8dc4beschrock		return (-1);
487ea8dc4beschrock	else if (ret > 0)
488ea8dc4beschrock		return (1);
489ea8dc4beschrock	else
490ea8dc4beschrock		return (0);
491ea8dc4beschrock}
492ea8dc4beschrock
493ea8dc4beschrock/*
494ea8dc4beschrock * Utility function which retrieves copies of the current logs and
495ea8dc4beschrock * re-initializes them in the process.
496ea8dc4beschrock */
497ea8dc4beschrockvoid
498ea8dc4beschrockspa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub)
499ea8dc4beschrock{
500ea8dc4beschrock	ASSERT(MUTEX_HELD(&spa->spa_errlist_lock));
501ea8dc4beschrock
502ea8dc4beschrock	bcopy(&spa->spa_errlist_last, last, sizeof (avl_tree_t));
503ea8dc4beschrock	bcopy(&spa->spa_errlist_scrub, scrub, sizeof (avl_tree_t));
504ea8dc4beschrock
505ea8dc4beschrock	avl_create(&spa->spa_errlist_scrub,
506ea8dc4beschrock	    spa_error_entry_compare, sizeof (spa_error_entry_t),
507ea8dc4beschrock	    offsetof(spa_error_entry_t, se_avl));
508ea8dc4beschrock	avl_create(&spa->spa_errlist_last,
509ea8dc4beschrock	    spa_error_entry_compare, sizeof (spa_error_entry_t),
510ea8dc4beschrock	    offsetof(spa_error_entry_t, se_avl));
511ea8dc4beschrock}
512ea8dc4beschrock
513fa9e406ahrens/*
514fa9e406ahrens * Activate an uninitialized pool.
515fa9e406ahrens */
516fa9e406ahrensstatic void
517fa9e406ahrensspa_activate(spa_t *spa)
518fa9e406ahrens{
519fa9e406ahrens	int t;
520fa9e406ahrens
521fa9e406ahrens	ASSERT(spa->spa_state == POOL_STATE_UNINITIALIZED);
522fa9e406ahrens
523fa9e406ahrens	spa->spa_state = POOL_STATE_ACTIVE;
524fa9e406ahrens
525fa9e406ahrens	spa->spa_normal_class = metaslab_class_create();
5268654d02perrin	spa->spa_log_class = metaslab_class_create();
527fa9e406ahrens
528fa9e406ahrens	for (t = 0; t < ZIO_TYPES; t++) {
529fa9e406ahrens		spa->spa_zio_issue_taskq[t] = taskq_create("spa_zio_issue",
530416e0cdek		    zio_taskq_threads, maxclsyspri, 50, INT_MAX,
531fa9e406ahrens		    TASKQ_PREPOPULATE);
532fa9e406ahrens		spa->spa_zio_intr_taskq[t] = taskq_create("spa_zio_intr",
533416e0cdek		    zio_taskq_threads, maxclsyspri, 50, INT_MAX,
534fa9e406ahrens		    TASKQ_PREPOPULATE);
535fa9e406ahrens	}
536fa9e406ahrens
537fa9e406ahrens	list_create(&spa->spa_dirty_list, sizeof (vdev_t),
538fa9e406ahrens	    offsetof(vdev_t, vdev_dirty_node));
5390a4e951gw	list_create(&spa->spa_zio_list, sizeof (zio_t),
5400a4e951gw	    offsetof(zio_t, zio_link_node));
541fa9e406ahrens
542fa9e406ahrens	txg_list_create(&spa->spa_vdev_txg_list,
543fa9e406ahrens	    offsetof(struct vdev, vdev_txg_node));
544ea8dc4beschrock
545ea8dc4beschrock	avl_create(&spa->spa_errlist_scrub,
546ea8dc4beschrock	    spa_error_entry_compare, sizeof (spa_error_entry_t),
547ea8dc4beschrock	    offsetof(spa_error_entry_t, se_avl));
548ea8dc4beschrock	avl_create(&spa->spa_errlist_last,
549ea8dc4beschrock	    spa_error_entry_compare, sizeof (spa_error_entry_t),
550ea8dc4beschrock	    offsetof(spa_error_entry_t, se_avl));
551fa9e406ahrens}
552fa9e406ahrens
553fa9e406ahrens/*
554fa9e406ahrens * Opposite of spa_activate().
555fa9e406ahrens */
556fa9e406ahrensstatic void
557fa9e406ahrensspa_deactivate(spa_t *spa)
558fa9e406ahrens{
559fa9e406ahrens	int t;
560fa9e406ahrens
561fa9e406ahrens	ASSERT(spa->spa_sync_on == B_FALSE);
562fa9e406ahrens	ASSERT(spa->spa_dsl_pool == NULL);
563fa9e406ahrens	ASSERT(spa->spa_root_vdev == NULL);
564fa9e406ahrens
565fa9e406ahrens	ASSERT(spa->spa_state != POOL_STATE_UNINITIALIZED);
566fa9e406ahrens
567fa9e406ahrens	txg_list_destroy(&spa->spa_vdev_txg_list);
568fa9e406ahrens
569fa9e406ahrens	list_destroy(&spa->spa_dirty_list);
5700a4e951gw	list_destroy(&spa->spa_zio_list);
571fa9e406ahrens
572fa9e406ahrens	for (t = 0; t < ZIO_TYPES; t++) {
573fa9e406ahrens		taskq_destroy(spa->spa_zio_issue_taskq[t]);
574fa9e406ahrens		taskq_destroy(spa->spa_zio_intr_taskq[t]);
575fa9e406ahrens		spa->spa_zio_issue_taskq[t] = NULL;
576fa9e406ahrens		spa->spa_zio_intr_taskq[t] = NULL;
577fa9e406ahrens	}
578fa9e406ahrens
579fa9e406ahrens	metaslab_class_destroy(spa->spa_normal_class);
580fa9e406ahrens	spa->spa_normal_class = NULL;
581fa9e406ahrens
5828654d02perrin	metaslab_class_destroy(spa->spa_log_class);
5838654d02perrin	spa->spa_log_class = NULL;
5848654d02perrin
585ea8dc4beschrock	/*
586ea8dc4beschrock	 * If this was part of an import or the open otherwise failed, we may
587ea8dc4beschrock	 * still have errors left in the queues.  Empty them just in case.
588ea8dc4beschrock	 */
589ea8dc4beschrock	spa_errlog_drain(spa);
590ea8dc4beschrock
591ea8dc4beschrock	avl_destroy(&spa->spa_errlist_scrub);
592ea8dc4beschrock	avl_destroy(&spa->spa_errlist_last);
593ea8dc4beschrock
594fa9e406ahrens	spa->spa_state = POOL_STATE_UNINITIALIZED;
595fa9e406ahrens}
596fa9e406ahrens
597fa9e406ahrens/*
598fa9e406ahrens * Verify a pool configuration, and construct the vdev tree appropriately.  This
599