X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fspa.c;h=40849bcb7f4924014c1e058e44b9786e1dbcf47a;hb=2ee4a18b2ac9c155e099db06cec320bd8cee3150;hp=93650386e651761fc1c968add69069061bccaa0c;hpb=451041db531dfec52c9e70fbd5d4179e30d61e2f;p=zfs.git diff --git a/module/zfs/spa.c b/module/zfs/spa.c index 9365038..40849bc 100644 --- a/module/zfs/spa.c +++ b/module/zfs/spa.c @@ -21,6 +21,8 @@ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. + * Copyright 2011 Nexenta Systems, Inc. All rights reserved. + * Copyright (c) 2011 by Delphix. All rights reserved. */ /* @@ -106,8 +108,8 @@ const zio_taskq_info_t zio_taskqs[ZIO_TYPES][ZIO_TASKQ_TYPES] = { /* ISSUE ISSUE_HIGH INTR INTR_HIGH */ { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, { ZTI_FIX(8), ZTI_NULL, ZTI_BATCH, ZTI_NULL }, - { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(8), ZTI_FIX(5) }, - { ZTI_FIX(100), ZTI_NULL, ZTI_ONE, ZTI_NULL }, + { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(16), ZTI_FIX(5) }, + { ZTI_PCT(100), ZTI_NULL, ZTI_ONE, ZTI_NULL }, { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, { ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, }; @@ -569,6 +571,43 @@ spa_prop_clear_bootfs(spa_t *spa, uint64_t dsobj, dmu_tx_t *tx) } /* + * Change the GUID for the pool. This is done so that we can later + * re-import a pool built from a clone of our own vdevs. We will modify + * the root vdev's guid, our own pool guid, and then mark all of our + * vdevs dirty. Note that we must make sure that all our vdevs are + * online when we do this, or else any vdevs that weren't present + * would be orphaned from our pool. We are also going to issue a + * sysevent to update any watchers. + */ +int +spa_change_guid(spa_t *spa) +{ + uint64_t oldguid, newguid; + uint64_t txg; + + if (!(spa_mode_global & FWRITE)) + return (EROFS); + + txg = spa_vdev_enter(spa); + + if (spa->spa_root_vdev->vdev_state != VDEV_STATE_HEALTHY) + return (spa_vdev_exit(spa, NULL, txg, ENXIO)); + + oldguid = spa_guid(spa); + newguid = spa_generate_guid(NULL); + ASSERT3U(oldguid, !=, newguid); + + spa->spa_root_vdev->vdev_guid = newguid; + spa->spa_root_vdev->vdev_guid_sum += (newguid - oldguid); + + vdev_config_dirty(spa->spa_root_vdev); + + spa_event_notify(spa, NULL, FM_EREPORT_ZFS_POOL_REGUID); + + return (spa_vdev_exit(spa, NULL, txg, 0)); +} + +/* * ========================================================================== * SPA state manipulation (open/create/destroy/import/export) * ========================================================================== @@ -614,9 +653,8 @@ spa_get_errlists(spa_t *spa, avl_tree_t *last, avl_tree_t *scrub) static taskq_t * spa_taskq_create(spa_t *spa, const char *name, enum zti_modes mode, - uint_t value) + uint_t value, uint_t flags) { - uint_t flags = TASKQ_PREPOPULATE; boolean_t batch = B_FALSE; switch (mode) { @@ -666,13 +704,17 @@ spa_create_zio_taskqs(spa_t *spa) const zio_taskq_info_t *ztip = &zio_taskqs[t][q]; enum zti_modes mode = ztip->zti_mode; uint_t value = ztip->zti_value; + uint_t flags = 0; char name[32]; + if (t == ZIO_TYPE_WRITE) + flags |= TASKQ_NORECLAIM; + (void) snprintf(name, sizeof (name), "%s_%s", zio_type_name[t], zio_taskq_types[q]); spa->spa_zio_taskq[t][q] = - spa_taskq_create(spa, name, mode, value); + spa_taskq_create(spa, name, mode, value, flags); } } } @@ -1001,8 +1043,10 @@ spa_unload(spa_t *spa) } spa->spa_spares.sav_count = 0; - for (i = 0; i < spa->spa_l2cache.sav_count; i++) + for (i = 0; i < spa->spa_l2cache.sav_count; i++) { + vdev_clear_stats(spa->spa_l2cache.sav_vdevs[i]); vdev_free(spa->spa_l2cache.sav_vdevs[i]); + } if (spa->spa_l2cache.sav_vdevs) { kmem_free(spa->spa_l2cache.sav_vdevs, spa->spa_l2cache.sav_count * sizeof (void *)); @@ -1225,11 +1269,13 @@ spa_load_l2cache(spa_t *spa) vd = oldvdevs[i]; if (vd != NULL) { + ASSERT(vd->vdev_isl2cache); + if (spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL && l2arc_vdev_present(vd)) l2arc_remove_vdev(vd); - (void) vdev_close(vd); - spa_l2cache_remove(vd); + vdev_clear_stats(vd); + vdev_free(vd); } } @@ -1763,7 +1809,7 @@ spa_load(spa_t *spa, spa_load_state_t state, spa_import_type_t type, spa_guid_exists(pool_guid, 0)) { error = EEXIST; } else { - spa->spa_load_guid = pool_guid; + spa->spa_config_guid = pool_guid; if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT, &nvl) == 0) { @@ -1876,7 +1922,7 @@ spa_load_impl(spa_t *spa, uint64_t pool_guid, nvlist_t *config, */ if (type != SPA_IMPORT_ASSEMBLE) { spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER); - error = vdev_validate(rvd); + error = vdev_validate(rvd, mosconfig); spa_config_exit(spa, SCL_ALL, FTAG); if (error != 0) @@ -1973,7 +2019,7 @@ spa_load_impl(spa_t *spa, uint64_t pool_guid, nvlist_t *config, cmn_err(CE_WARN, "pool '%s' could not be " "loaded as it was last accessed by " "another system (host: %s hostid: 0x%lx). " - "See: http://www.sun.com/msg/ZFS-8000-EY", + "See: http://zfsonlinux.org/msg/ZFS-8000-EY", spa_name(spa), hostname, (unsigned long)hostid); return (EBADF); @@ -2737,6 +2783,7 @@ spa_validate_aux_devs(spa_t *spa, nvlist_t *nvroot, uint64_t crtxg, int mode, if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) && strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) { error = ENOTBLK; + vdev_free(vd); goto out; } #endif @@ -2846,10 +2893,6 @@ spa_l2cache_drop(spa_t *spa) if (spa_l2cache_exists(vd->vdev_guid, &pool) && pool != 0ULL && l2arc_vdev_present(vd)) l2arc_remove_vdev(vd); - if (vd->vdev_isl2cache) - spa_l2cache_remove(vd); - vdev_clear_stats(vd); - (void) vdev_close(vd); } } @@ -3845,7 +3888,7 @@ spa_vdev_attach(spa_t *spa, uint64_t guid, nvlist_t *nvroot, int replacing) pvd = oldvd->vdev_parent; if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0, - VDEV_ALLOC_ADD)) != 0) + VDEV_ALLOC_ATTACH)) != 0) return (spa_vdev_exit(spa, NULL, txg, EINVAL)); if (newrootvd->vdev_children != 1)