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spa.c (219089) spa.c (228103)
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

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16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

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16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2011 by Delphix. All rights reserved.
24 */
25
26/*
27 * This file contains all the routines used when modifying on-disk SPA state.
28 * This includes opening, importing, destroying, exporting a pool, and syncing a
29 * pool.
30 */
31

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207 src = ZPROP_SRC_DEFAULT;
208 else
209 src = ZPROP_SRC_LOCAL;
210 spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src);
211 }
212
213 spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src);
214
25 */
26
27/*
28 * This file contains all the routines used when modifying on-disk SPA state.
29 * This includes opening, importing, destroying, exporting a pool, and syncing a
30 * pool.
31 */
32

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208 src = ZPROP_SRC_DEFAULT;
209 else
210 src = ZPROP_SRC_LOCAL;
211 spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src);
212 }
213
214 spa_prop_add_list(*nvp, ZPOOL_PROP_GUID, NULL, spa_guid(spa), src);
215
216 if (spa->spa_comment != NULL) {
217 spa_prop_add_list(*nvp, ZPOOL_PROP_COMMENT, spa->spa_comment,
218 0, ZPROP_SRC_LOCAL);
219 }
220
215 if (spa->spa_root != NULL)
216 spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root,
217 0, ZPROP_SRC_LOCAL);
218
219 if ((dp = list_head(&spa->spa_config_list)) != NULL) {
220 if (dp->scd_path == NULL) {
221 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
222 "none", 0, ZPROP_SRC_LOCAL);

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346 uint64_t objnum;
347
348 elem = NULL;
349 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
350 zpool_prop_t prop;
351 char *propname, *strval;
352 uint64_t intval;
353 objset_t *os;
221 if (spa->spa_root != NULL)
222 spa_prop_add_list(*nvp, ZPOOL_PROP_ALTROOT, spa->spa_root,
223 0, ZPROP_SRC_LOCAL);
224
225 if ((dp = list_head(&spa->spa_config_list)) != NULL) {
226 if (dp->scd_path == NULL) {
227 spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
228 "none", 0, ZPROP_SRC_LOCAL);

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352 uint64_t objnum;
353
354 elem = NULL;
355 while ((elem = nvlist_next_nvpair(props, elem)) != NULL) {
356 zpool_prop_t prop;
357 char *propname, *strval;
358 uint64_t intval;
359 objset_t *os;
354 char *slash;
360 char *slash, *check;
355
356 propname = nvpair_name(elem);
357
358 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL)
359 return (EINVAL);
360
361 switch (prop) {
362 case ZPOOL_PROP_VERSION:

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466 slash = strrchr(strval, '/');
467 ASSERT(slash != NULL);
468
469 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 ||
470 strcmp(slash, "/..") == 0)
471 error = EINVAL;
472 break;
473
361
362 propname = nvpair_name(elem);
363
364 if ((prop = zpool_name_to_prop(propname)) == ZPROP_INVAL)
365 return (EINVAL);
366
367 switch (prop) {
368 case ZPOOL_PROP_VERSION:

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472 slash = strrchr(strval, '/');
473 ASSERT(slash != NULL);
474
475 if (slash[1] == '\0' || strcmp(slash, "/.") == 0 ||
476 strcmp(slash, "/..") == 0)
477 error = EINVAL;
478 break;
479
480 case ZPOOL_PROP_COMMENT:
481 if ((error = nvpair_value_string(elem, &strval)) != 0)
482 break;
483 for (check = strval; *check != '\0'; check++) {
484 /*
485 * The kernel doesn't have an easy isprint()
486 * check. For this kernel check, we merely
487 * check ASCII apart from DEL. Fix this if
488 * there is an easy-to-use kernel isprint().
489 */
490 if (*check >= 0x7f) {
491 error = EINVAL;
492 break;
493 }
494 check++;
495 }
496 if (strlen(strval) > ZPROP_MAX_COMMENT)
497 error = E2BIG;
498 break;
499
474 case ZPOOL_PROP_DEDUPDITTO:
475 if (spa_version(spa) < SPA_VERSION_DEDUP)
476 error = ENOTSUP;
477 else
478 error = nvpair_value_uint64(elem, &intval);
479 if (error == 0 &&
480 intval != 0 && intval < ZIO_DEDUPDITTO_MIN)
481 error = EINVAL;

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567 VERIFY(zap_remove(spa->spa_meta_objset,
568 spa->spa_pool_props_object,
569 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0);
570 spa->spa_bootfs = 0;
571 }
572}
573
574/*
500 case ZPOOL_PROP_DEDUPDITTO:
501 if (spa_version(spa) < SPA_VERSION_DEDUP)
502 error = ENOTSUP;
503 else
504 error = nvpair_value_uint64(elem, &intval);
505 if (error == 0 &&
506 intval != 0 && intval < ZIO_DEDUPDITTO_MIN)
507 error = EINVAL;

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593 VERIFY(zap_remove(spa->spa_meta_objset,
594 spa->spa_pool_props_object,
595 zpool_prop_to_name(ZPOOL_PROP_BOOTFS), tx) == 0);
596 spa->spa_bootfs = 0;
597 }
598}
599
600/*
601 * Change the GUID for the pool. This is done so that we can later
602 * re-import a pool built from a clone of our own vdevs. We will modify
603 * the root vdev's guid, our own pool guid, and then mark all of our
604 * vdevs dirty. Note that we must make sure that all our vdevs are
605 * online when we do this, or else any vdevs that weren't present
606 * would be orphaned from our pool. We are also going to issue a
607 * sysevent to update any watchers.
608 */
609int
610spa_change_guid(spa_t *spa)
611{
612 uint64_t oldguid, newguid;
613 uint64_t txg;
614
615 if (!(spa_mode_global & FWRITE))
616 return (EROFS);
617
618 txg = spa_vdev_enter(spa);
619
620 if (spa->spa_root_vdev->vdev_state != VDEV_STATE_HEALTHY)
621 return (spa_vdev_exit(spa, NULL, txg, ENXIO));
622
623 oldguid = spa_guid(spa);
624 newguid = spa_generate_guid(NULL);
625 ASSERT3U(oldguid, !=, newguid);
626
627 spa->spa_root_vdev->vdev_guid = newguid;
628 spa->spa_root_vdev->vdev_guid_sum += (newguid - oldguid);
629
630 vdev_config_dirty(spa->spa_root_vdev);
631
632 spa_event_notify(spa, NULL, ESC_ZFS_POOL_REGUID);
633
634 return (spa_vdev_exit(spa, NULL, txg, 0));
635}
636
637/*
575 * ==========================================================================
576 * SPA state manipulation (open/create/destroy/import/export)
577 * ==========================================================================
578 */
579
580static int
581spa_error_entry_compare(const void *a, const void *b)
582{

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1020 if (spa->spa_l2cache.sav_config) {
1021 nvlist_free(spa->spa_l2cache.sav_config);
1022 spa->spa_l2cache.sav_config = NULL;
1023 }
1024 spa->spa_l2cache.sav_count = 0;
1025
1026 spa->spa_async_suspended = 0;
1027
638 * ==========================================================================
639 * SPA state manipulation (open/create/destroy/import/export)
640 * ==========================================================================
641 */
642
643static int
644spa_error_entry_compare(const void *a, const void *b)
645{

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1083 if (spa->spa_l2cache.sav_config) {
1084 nvlist_free(spa->spa_l2cache.sav_config);
1085 spa->spa_l2cache.sav_config = NULL;
1086 }
1087 spa->spa_l2cache.sav_count = 0;
1088
1089 spa->spa_async_suspended = 0;
1090
1091 if (spa->spa_comment != NULL) {
1092 spa_strfree(spa->spa_comment);
1093 spa->spa_comment = NULL;
1094 }
1095
1028 spa_config_exit(spa, SCL_ALL, FTAG);
1029}
1030
1031/*
1032 * Load (or re-load) the current list of vdevs describing the active spares for
1033 * this pool. When this is called, we have some form of basic information in
1034 * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and
1035 * then re-generate a more complete list including status information.

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1737}
1738
1739static int
1740spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type,
1741 boolean_t mosconfig)
1742{
1743 nvlist_t *config = spa->spa_config;
1744 char *ereport = FM_EREPORT_ZFS_POOL;
1096 spa_config_exit(spa, SCL_ALL, FTAG);
1097}
1098
1099/*
1100 * Load (or re-load) the current list of vdevs describing the active spares for
1101 * this pool. When this is called, we have some form of basic information in
1102 * 'spa_spares.sav_config'. We parse this into vdevs, try to open them, and
1103 * then re-generate a more complete list including status information.

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1805}
1806
1807static int
1808spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type,
1809 boolean_t mosconfig)
1810{
1811 nvlist_t *config = spa->spa_config;
1812 char *ereport = FM_EREPORT_ZFS_POOL;
1813 char *comment;
1745 int error;
1746 uint64_t pool_guid;
1747 nvlist_t *nvl;
1748
1749 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid))
1750 return (EINVAL);
1751
1814 int error;
1815 uint64_t pool_guid;
1816 nvlist_t *nvl;
1817
1818 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_GUID, &pool_guid))
1819 return (EINVAL);
1820
1821 ASSERT(spa->spa_comment == NULL);
1822 if (nvlist_lookup_string(config, ZPOOL_CONFIG_COMMENT, &comment) == 0)
1823 spa->spa_comment = spa_strdup(comment);
1824
1752 /*
1753 * Versioning wasn't explicitly added to the label until later, so if
1754 * it's not present treat it as the initial version.
1755 */
1756 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
1757 &spa->spa_ubsync.ub_version) != 0)
1758 spa->spa_ubsync.ub_version = SPA_VERSION_INITIAL;
1759
1760 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG,
1761 &spa->spa_config_txg);
1762
1763 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) &&
1764 spa_guid_exists(pool_guid, 0)) {
1765 error = EEXIST;
1766 } else {
1825 /*
1826 * Versioning wasn't explicitly added to the label until later, so if
1827 * it's not present treat it as the initial version.
1828 */
1829 if (nvlist_lookup_uint64(config, ZPOOL_CONFIG_VERSION,
1830 &spa->spa_ubsync.ub_version) != 0)
1831 spa->spa_ubsync.ub_version = SPA_VERSION_INITIAL;
1832
1833 (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_TXG,
1834 &spa->spa_config_txg);
1835
1836 if ((state == SPA_LOAD_IMPORT || state == SPA_LOAD_TRYIMPORT) &&
1837 spa_guid_exists(pool_guid, 0)) {
1838 error = EEXIST;
1839 } else {
1767 spa->spa_load_guid = pool_guid;
1840 spa->spa_config_guid = pool_guid;
1768
1769 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT,
1770 &nvl) == 0) {
1771 VERIFY(nvlist_dup(nvl, &spa->spa_config_splitting,
1772 KM_SLEEP) == 0);
1773 }
1774
1775 gethrestime(&spa->spa_loaded_ts);

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5375
5376 case ZPOOL_PROP_READONLY:
5377 case ZPOOL_PROP_CACHEFILE:
5378 /*
5379 * 'readonly' and 'cachefile' are also non-persisitent
5380 * properties.
5381 */
5382 break;
1841
1842 if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT,
1843 &nvl) == 0) {
1844 VERIFY(nvlist_dup(nvl, &spa->spa_config_splitting,
1845 KM_SLEEP) == 0);
1846 }
1847
1848 gethrestime(&spa->spa_loaded_ts);

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5448
5449 case ZPOOL_PROP_READONLY:
5450 case ZPOOL_PROP_CACHEFILE:
5451 /*
5452 * 'readonly' and 'cachefile' are also non-persisitent
5453 * properties.
5454 */
5455 break;
5456 case ZPOOL_PROP_COMMENT:
5457 VERIFY(nvpair_value_string(elem, &strval) == 0);
5458 if (spa->spa_comment != NULL)
5459 spa_strfree(spa->spa_comment);
5460 spa->spa_comment = spa_strdup(strval);
5461 /*
5462 * We need to dirty the configuration on all the vdevs
5463 * so that their labels get updated. It's unnecessary
5464 * to do this for pool creation since the vdev's
5465 * configuratoin has already been dirtied.
5466 */
5467 if (tx->tx_txg != TXG_INITIAL)
5468 vdev_config_dirty(spa->spa_root_vdev);
5469 break;
5383 default:
5384 /*
5385 * Set pool property values in the poolprops mos object.
5386 */
5387 if (spa->spa_pool_props_object == 0) {
5388 VERIFY((spa->spa_pool_props_object =
5389 zap_create(mos, DMU_OT_POOL_PROPS,
5390 DMU_OT_NONE, 0, tx)) > 0);

--- 540 unchanged lines hidden --- 		5470 default:
5471 /*
5472 * Set pool property values in the poolprops mos object.
5473 */
5474 if (spa->spa_pool_props_object == 0) {
5475 VERIFY((spa->spa_pool_props_object =
5476 zap_create(mos, DMU_OT_POOL_PROPS,
5477 DMU_OT_NONE, 0, tx)) > 0);

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