/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2013 by Delphix. All rights reserved.
+ * Copyright (c) 2011, 2017 by Delphix. All rights reserved.
+ * Copyright (c) 2015, Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2013, 2014, Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
+ * Copyright 2013 Saso Kiselkov. All rights reserved.
+ * Copyright (c) 2014 Integros [integros.com]
+ * Copyright 2016 Toomas Soome <tsoome@me.com>
* Copyright (c) 2016 Actifio, Inc. All rights reserved.
+ * Copyright (c) 2017 Datto Inc.
+ * Copyright 2017 Joyent, Inc.
*/
/*
#include <sys/vdev_disk.h>
#include <sys/metaslab.h>
#include <sys/metaslab_impl.h>
+#include <sys/mmp.h>
#include <sys/uberblock_impl.h>
#include <sys/txg.h>
#include <sys/avl.h>
#include <sys/zvol.h>
#ifdef _KERNEL
+#include <sys/fm/protocol.h>
+#include <sys/fm/util.h>
#include <sys/bootprops.h>
#include <sys/callb.h>
#include <sys/cpupart.h>
#include "zfs_prop.h"
#include "zfs_comutil.h"
+/*
+ * The interval, in seconds, at which failed configuration cache file writes
+ * should be retried.
+ */
+static int zfs_ccw_retry_interval = 300;
+
typedef enum zti_modes {
ZTI_MODE_FIXED, /* value is # of threads (min 1) */
ZTI_MODE_BATCH, /* cpu-intensive; value is ignored */
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL }, /* IOCTL */
};
+static sysevent_t *spa_event_create(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl,
+ const char *name);
+static void spa_event_post(sysevent_t *ev);
static void spa_sync_version(void *arg, dmu_tx_t *tx);
static void spa_sync_props(void *arg, dmu_tx_t *tx);
static boolean_t spa_has_active_shared_spare(spa_t *spa);
vdev_t *rvd = spa->spa_root_vdev;
dsl_pool_t *pool = spa->spa_dsl_pool;
uint64_t size, alloc, cap, version;
- zprop_source_t src = ZPROP_SRC_NONE;
+ const zprop_source_t src = ZPROP_SRC_NONE;
spa_config_dirent_t *dp;
metaslab_class_t *mc = spa_normal_class(spa);
rvd->vdev_state, src);
version = spa_version(spa);
- if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION))
- src = ZPROP_SRC_DEFAULT;
- else
- src = ZPROP_SRC_LOCAL;
- spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL, version, src);
+ if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION)) {
+ spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL,
+ version, ZPROP_SRC_DEFAULT);
+ } else {
+ spa_prop_add_list(*nvp, ZPOOL_PROP_VERSION, NULL,
+ version, ZPROP_SRC_LOCAL);
+ }
}
if (pool != NULL) {
SPA_OLD_MAXBLOCKSIZE, ZPROP_SRC_NONE);
}
+ if (spa_feature_is_enabled(spa, SPA_FEATURE_LARGE_DNODE)) {
+ spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL,
+ DNODE_MAX_SIZE, ZPROP_SRC_NONE);
+ } else {
+ spa_prop_add_list(*nvp, ZPOOL_PROP_MAXDNODESIZE, NULL,
+ DNODE_MIN_SIZE, ZPROP_SRC_NONE);
+ }
+
if ((dp = list_head(&spa->spa_config_list)) != NULL) {
if (dp->scd_path == NULL) {
spa_prop_add_list(*nvp, ZPOOL_PROP_CACHEFILE,
break;
}
- strval = kmem_alloc(
- MAXNAMELEN + strlen(MOS_DIR_NAME) + 1,
+ strval = kmem_alloc(ZFS_MAX_DATASET_NAME_LEN,
KM_SLEEP);
dsl_dataset_name(ds, strval);
dsl_dataset_rele(ds, FTAG);
spa_prop_add_list(*nvp, prop, strval, intval, src);
if (strval != NULL)
- kmem_free(strval,
- MAXNAMELEN + strlen(MOS_DIR_NAME) + 1);
+ kmem_free(strval, ZFS_MAX_DATASET_NAME_LEN);
break;
error = SET_ERROR(EINVAL);
break;
+ case ZPOOL_PROP_MULTIHOST:
+ error = nvpair_value_uint64(elem, &intval);
+ if (!error && intval > 1)
+ error = SET_ERROR(EINVAL);
+
+ if (!error && !spa_get_hostid())
+ error = SET_ERROR(ENOTSUP);
+
+ break;
+
case ZPOOL_PROP_BOOTFS:
/*
* If the pool version is less than SPA_VERSION_BOOTFS,
/*
* Must be ZPL, and its property settings
* must be supported by GRUB (compression
- * is not gzip, and large blocks are not used).
+ * is not gzip, and large blocks or large
+ * dnodes are not used).
*/
if (dmu_objset_type(os) != DMU_OST_ZFS) {
error = SET_ERROR(ENOTSUP);
} else if ((error =
dsl_prop_get_int_ds(dmu_objset_ds(os),
- zfs_prop_to_name(ZFS_PROP_RECORDSIZE),
+ zfs_prop_to_name(ZFS_PROP_DNODESIZE),
&propval)) == 0 &&
- propval > SPA_OLD_MAXBLOCKSIZE) {
+ propval != ZFS_DNSIZE_LEGACY) {
error = SET_ERROR(ENOTSUP);
} else {
objnum = dmu_objset_id(os);
case ZPOOL_PROP_FAILUREMODE:
error = nvpair_value_uint64(elem, &intval);
- if (!error && (intval < ZIO_FAILURE_MODE_WAIT ||
- intval > ZIO_FAILURE_MODE_PANIC))
+ if (!error && intval > ZIO_FAILURE_MODE_PANIC)
error = SET_ERROR(EINVAL);
/*
error = SET_ERROR(EINVAL);
break;
}
- check++;
}
if (strlen(strval) > ZPROP_MAX_COMMENT)
error = SET_ERROR(E2BIG);
if (error == 0) {
spa_config_sync(spa, B_FALSE, B_TRUE);
- spa_event_notify(spa, NULL, FM_EREPORT_ZFS_POOL_REGUID);
+ spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_REGUID);
}
mutex_exit(&spa_namespace_lock);
static int
spa_error_entry_compare(const void *a, const void *b)
{
- spa_error_entry_t *sa = (spa_error_entry_t *)a;
- spa_error_entry_t *sb = (spa_error_entry_t *)b;
+ const spa_error_entry_t *sa = (const spa_error_entry_t *)a;
+ const spa_error_entry_t *sb = (const spa_error_entry_t *)b;
int ret;
- ret = bcmp(&sa->se_bookmark, &sb->se_bookmark,
+ ret = memcmp(&sa->se_bookmark, &sb->se_bookmark,
sizeof (zbookmark_phys_t));
- if (ret < 0)
- return (-1);
- else if (ret > 0)
- return (1);
- else
- return (0);
+ return (AVL_ISIGN(ret));
}
/*
list_create(&spa->spa_state_dirty_list, sizeof (vdev_t),
offsetof(vdev_t, vdev_state_dirty_node));
- txg_list_create(&spa->spa_vdev_txg_list,
+ txg_list_create(&spa->spa_vdev_txg_list, spa,
offsetof(struct vdev, vdev_txg_node));
avl_create(&spa->spa_errlist_scrub,
*/
spa->spa_zvol_taskq = taskq_create("z_zvol", 1, defclsyspri,
1, INT_MAX, 0);
+
+ /*
+ * The taskq to upgrade datasets in this pool. Currently used by
+ * feature SPA_FEATURE_USEROBJ_ACCOUNTING.
+ */
+ spa->spa_upgrade_taskq = taskq_create("z_upgrade", boot_ncpus,
+ defclsyspri, 1, INT_MAX, TASKQ_DYNAMIC);
}
/*
spa->spa_zvol_taskq = NULL;
}
+ if (spa->spa_upgrade_taskq) {
+ taskq_destroy(spa->spa_upgrade_taskq);
+ spa->spa_upgrade_taskq = NULL;
+ }
+
txg_list_destroy(&spa->spa_vdev_txg_list);
list_destroy(&spa->spa_config_dirty_list);
list_destroy(&spa->spa_evicting_os_list);
list_destroy(&spa->spa_state_dirty_list);
- taskq_cancel_id(system_taskq, spa->spa_deadman_tqid);
+ taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid);
for (t = 0; t < ZIO_TYPES; t++) {
for (q = 0; q < ZIO_TASKQ_TYPES; q++) {
static void
spa_unload(spa_t *spa)
{
- int i;
+ int i, c;
ASSERT(MUTEX_HELD(&spa_namespace_lock));
spa->spa_sync_on = B_FALSE;
}
+ /*
+ * Even though vdev_free() also calls vdev_metaslab_fini, we need
+ * to call it earlier, before we wait for async i/o to complete.
+ * This ensures that there is no async metaslab prefetching, by
+ * calling taskq_wait(mg_taskq).
+ */
+ if (spa->spa_root_vdev != NULL) {
+ spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
+ for (c = 0; c < spa->spa_root_vdev->vdev_children; c++)
+ vdev_metaslab_fini(spa->spa_root_vdev->vdev_child[c]);
+ spa_config_exit(spa, SCL_ALL, FTAG);
+ }
+
+ if (spa->spa_mmp.mmp_thread)
+ mmp_thread_stop(spa);
+
/*
* Wait for any outstanding async I/O to complete.
*/
ddt_unload(spa);
-
/*
* Drop and purge level 2 cache
*/
ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == SCL_ALL);
- if (sav->sav_config != NULL) {
- VERIFY(nvlist_lookup_nvlist_array(sav->sav_config,
- ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0);
- newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP);
- } else {
- nl2cache = 0;
- newvdevs = NULL;
- }
-
oldvdevs = sav->sav_vdevs;
oldnvdevs = sav->sav_count;
sav->sav_vdevs = NULL;
sav->sav_count = 0;
+ if (sav->sav_config == NULL) {
+ nl2cache = 0;
+ newvdevs = NULL;
+ goto out;
+ }
+
+ VERIFY(nvlist_lookup_nvlist_array(sav->sav_config,
+ ZPOOL_CONFIG_L2CACHE, &l2cache, &nl2cache) == 0);
+ newvdevs = kmem_alloc(nl2cache * sizeof (void *), KM_SLEEP);
+
/*
* Process new nvlist of vdevs.
*/
}
}
+ sav->sav_vdevs = newvdevs;
+ sav->sav_count = (int)nl2cache;
+
+ /*
+ * Recompute the stashed list of l2cache devices, with status
+ * information this time.
+ */
+ VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE,
+ DATA_TYPE_NVLIST_ARRAY) == 0);
+
+ l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP);
+ for (i = 0; i < sav->sav_count; i++)
+ l2cache[i] = vdev_config_generate(spa,
+ sav->sav_vdevs[i], B_TRUE, VDEV_CONFIG_L2CACHE);
+ VERIFY(nvlist_add_nvlist_array(sav->sav_config,
+ ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0);
+
+out:
/*
* Purge vdevs that were dropped
*/
if (oldvdevs)
kmem_free(oldvdevs, oldnvdevs * sizeof (void *));
- if (sav->sav_config == NULL)
- goto out;
-
- sav->sav_vdevs = newvdevs;
- sav->sav_count = (int)nl2cache;
-
- /*
- * Recompute the stashed list of l2cache devices, with status
- * information this time.
- */
- VERIFY(nvlist_remove(sav->sav_config, ZPOOL_CONFIG_L2CACHE,
- DATA_TYPE_NVLIST_ARRAY) == 0);
-
- l2cache = kmem_alloc(sav->sav_count * sizeof (void *), KM_SLEEP);
- for (i = 0; i < sav->sav_count; i++)
- l2cache[i] = vdev_config_generate(spa,
- sav->sav_vdevs[i], B_TRUE, VDEV_CONFIG_L2CACHE);
- VERIFY(nvlist_add_nvlist_array(sav->sav_config,
- ZPOOL_CONFIG_L2CACHE, l2cache, sav->sav_count) == 0);
-out:
for (i = 0; i < sav->sav_count; i++)
nvlist_free(l2cache[i]);
if (sav->sav_count)
if (vd->vdev_ops->vdev_op_leaf && vdev_is_dead(vd) &&
!vd->vdev_ishole) {
- zfs_ereport_post(FM_EREPORT_RESOURCE_AUTOREPLACE,
- vd->vdev_spa, vd, NULL, 0, 0);
- spa_event_notify(vd->vdev_spa, vd, FM_EREPORT_ZFS_DEVICE_CHECK);
+ zfs_post_autoreplace(vd->vdev_spa, vd);
+ spa_event_notify(vd->vdev_spa, vd, NULL, ESC_ZFS_VDEV_CHECK);
+ }
+}
+
+static void
+spa_config_valid_zaps(vdev_t *vd, vdev_t *mvd)
+{
+ uint64_t i;
+
+ ASSERT3U(vd->vdev_children, ==, mvd->vdev_children);
+
+ vd->vdev_top_zap = mvd->vdev_top_zap;
+ vd->vdev_leaf_zap = mvd->vdev_leaf_zap;
+
+ for (i = 0; i < vd->vdev_children; i++) {
+ spa_config_valid_zaps(vd->vdev_child[i], mvd->vdev_child[i]);
}
}
nvlist_t **child, *nv;
uint64_t idx = 0;
- child = kmem_alloc(rvd->vdev_children * sizeof (nvlist_t **),
+ child = kmem_alloc(rvd->vdev_children * sizeof (nvlist_t *),
KM_SLEEP);
VERIFY(nvlist_alloc(&nv, NV_UNIQUE_NAME, KM_SLEEP) == 0);
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
vdev_reopen(rvd);
- } else if (mtvd->vdev_islog) {
+ } else {
+ if (mtvd->vdev_islog) {
+ /*
+ * Load the slog device's state from the MOS
+ * config since it's possible that the label
+ * does not contain the most up-to-date
+ * information.
+ */
+ vdev_load_log_state(tvd, mtvd);
+ vdev_reopen(tvd);
+ }
+
/*
- * Load the slog device's state from the MOS config
- * since it's possible that the label does not
- * contain the most up-to-date information.
+ * Per-vdev ZAP info is stored exclusively in the MOS.
*/
- vdev_load_log_state(tvd, mtvd);
- vdev_reopen(tvd);
+ spa_config_valid_zaps(tvd, mtvd);
}
}
+
vdev_free(mrvd);
spa_config_exit(spa, SCL_ALL, FTAG);
int error = zio->io_error;
spa_t *spa = zio->io_spa;
+ abd_free(zio->io_abd);
if (error) {
if ((BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)) &&
type != DMU_OT_INTENT_LOG)
- atomic_add_64(&sle->sle_meta_count, 1);
+ atomic_inc_64(&sle->sle_meta_count);
else
- atomic_add_64(&sle->sle_data_count, 1);
+ atomic_inc_64(&sle->sle_data_count);
}
- zio_data_buf_free(zio->io_data, zio->io_size);
mutex_enter(&spa->spa_scrub_lock);
spa->spa_scrub_inflight--;
{
zio_t *rio;
size_t size;
- void *data;
- if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
+ if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
return (0);
/*
* Note: normally this routine will not be called if
*/
if (!spa_load_verify_metadata)
return (0);
- if (BP_GET_BUFC_TYPE(bp) == ARC_BUFC_DATA && !spa_load_verify_data)
+ if (!BP_IS_METADATA(bp) && !spa_load_verify_data)
return (0);
rio = arg;
size = BP_GET_PSIZE(bp);
- data = zio_data_buf_alloc(size);
mutex_enter(&spa->spa_scrub_lock);
while (spa->spa_scrub_inflight >= spa_load_verify_maxinflight)
spa->spa_scrub_inflight++;
mutex_exit(&spa->spa_scrub_lock);
- zio_nowait(zio_read(rio, spa, bp, data, size,
+ zio_nowait(zio_read(rio, spa, bp, abd_alloc_for_io(size, B_FALSE), size,
spa_load_verify_done, rio->io_private, ZIO_PRIORITY_SCRUB,
ZIO_FLAG_SPECULATIVE | ZIO_FLAG_CANFAIL |
ZIO_FLAG_SCRUB | ZIO_FLAG_RAW, zb));
return (error);
}
+#ifdef ZFS_DEBUG
+/*
+ * Count the number of per-vdev ZAPs associated with all of the vdevs in the
+ * vdev tree rooted in the given vd, and ensure that each ZAP is present in the
+ * spa's per-vdev ZAP list.
+ */
+static uint64_t
+vdev_count_verify_zaps(vdev_t *vd)
+{
+ spa_t *spa = vd->vdev_spa;
+ uint64_t total = 0;
+ uint64_t i;
+
+ if (vd->vdev_top_zap != 0) {
+ total++;
+ ASSERT0(zap_lookup_int(spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps, vd->vdev_top_zap));
+ }
+ if (vd->vdev_leaf_zap != 0) {
+ total++;
+ ASSERT0(zap_lookup_int(spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps, vd->vdev_leaf_zap));
+ }
+
+ for (i = 0; i < vd->vdev_children; i++) {
+ total += vdev_count_verify_zaps(vd->vdev_child[i]);
+ }
+
+ return (total);
+}
+#endif
+
+/*
+ * Determine whether the activity check is required.
+ */
+static boolean_t
+spa_activity_check_required(spa_t *spa, uberblock_t *ub, nvlist_t *config)
+{
+ uint64_t state = 0;
+ uint64_t hostid = 0;
+ uint64_t tryconfig_txg = 0;
+ uint64_t tryconfig_timestamp = 0;
+ nvlist_t *nvinfo;
+
+ if (nvlist_exists(config, ZPOOL_CONFIG_LOAD_INFO)) {
+ nvinfo = fnvlist_lookup_nvlist(config, ZPOOL_CONFIG_LOAD_INFO);
+ (void) nvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_MMP_TXG,
+ &tryconfig_txg);
+ (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_TIMESTAMP,
+ &tryconfig_timestamp);
+ }
+
+ (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_POOL_STATE, &state);
+ (void) nvlist_lookup_uint64(config, ZPOOL_CONFIG_HOSTID, &hostid);
+
+ /*
+ * Disable the MMP activity check - This is used by zdb which
+ * is intended to be used on potentially active pools.
+ */
+ if (spa->spa_import_flags & ZFS_IMPORT_SKIP_MMP)
+ return (B_FALSE);
+
+ /*
+ * Skip the activity check when the MMP feature is disabled.
+ */
+ if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay == 0)
+ return (B_FALSE);
+ /*
+ * If the tryconfig_* values are nonzero, they are the results of an
+ * earlier tryimport. If they match the uberblock we just found, then
+ * the pool has not changed and we return false so we do not test a
+ * second time.
+ */
+ if (tryconfig_txg && tryconfig_txg == ub->ub_txg &&
+ tryconfig_timestamp && tryconfig_timestamp == ub->ub_timestamp)
+ return (B_FALSE);
+
+ /*
+ * Allow the activity check to be skipped when importing the pool
+ * on the same host which last imported it.
+ */
+ if (hostid == spa_get_hostid())
+ return (B_FALSE);
+
+ /*
+ * Skip the activity test when the pool was cleanly exported.
+ */
+ if (state != POOL_STATE_ACTIVE)
+ return (B_FALSE);
+
+ return (B_TRUE);
+}
+
+/*
+ * Perform the import activity check. If the user canceled the import or
+ * we detected activity then fail.
+ */
+static int
+spa_activity_check(spa_t *spa, uberblock_t *ub, nvlist_t *config)
+{
+ uint64_t import_intervals = MAX(zfs_multihost_import_intervals, 1);
+ uint64_t txg = ub->ub_txg;
+ uint64_t timestamp = ub->ub_timestamp;
+ uint64_t import_delay = NANOSEC;
+ hrtime_t import_expire;
+ nvlist_t *mmp_label = NULL;
+ vdev_t *rvd = spa->spa_root_vdev;
+ kcondvar_t cv;
+ kmutex_t mtx;
+ int error = 0;
+
+ cv_init(&cv, NULL, CV_DEFAULT, NULL);
+ mutex_init(&mtx, NULL, MUTEX_DEFAULT, NULL);
+ mutex_enter(&mtx);
+
+ /*
+ * If ZPOOL_CONFIG_MMP_TXG is present an activity check was performed
+ * during the earlier tryimport. If the txg recorded there is 0 then
+ * the pool is known to be active on another host.
+ *
+ * Otherwise, the pool might be in use on another node. Check for
+ * changes in the uberblocks on disk if necessary.
+ */
+ if (nvlist_exists(config, ZPOOL_CONFIG_LOAD_INFO)) {
+ nvlist_t *nvinfo = fnvlist_lookup_nvlist(config,
+ ZPOOL_CONFIG_LOAD_INFO);
+
+ if (nvlist_exists(nvinfo, ZPOOL_CONFIG_MMP_TXG) &&
+ fnvlist_lookup_uint64(nvinfo, ZPOOL_CONFIG_MMP_TXG) == 0) {
+ vdev_uberblock_load(rvd, ub, &mmp_label);
+ error = SET_ERROR(EREMOTEIO);
+ goto out;
+ }
+ }
+
+ /*
+ * Preferentially use the zfs_multihost_interval from the node which
+ * last imported the pool. This value is stored in an MMP uberblock as.
+ *
+ * ub_mmp_delay * vdev_count_leaves() == zfs_multihost_interval
+ */
+ if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay)
+ import_delay = MAX(import_delay, import_intervals *
+ ub->ub_mmp_delay * MAX(vdev_count_leaves(spa), 1));
+
+ /* Apply a floor using the local default values. */
+ import_delay = MAX(import_delay, import_intervals *
+ MSEC2NSEC(MAX(zfs_multihost_interval, MMP_MIN_INTERVAL)));
+
+ /* Add a small random factor in case of simultaneous imports (0-25%) */
+ import_expire = gethrtime() + import_delay +
+ (import_delay * spa_get_random(250) / 1000);
+
+ while (gethrtime() < import_expire) {
+ vdev_uberblock_load(rvd, ub, &mmp_label);
+
+ if (txg != ub->ub_txg || timestamp != ub->ub_timestamp) {
+ error = SET_ERROR(EREMOTEIO);
+ break;
+ }
+
+ if (mmp_label) {
+ nvlist_free(mmp_label);
+ mmp_label = NULL;
+ }
+
+ error = cv_timedwait_sig(&cv, &mtx, ddi_get_lbolt() + hz);
+ if (error != -1) {
+ error = SET_ERROR(EINTR);
+ break;
+ }
+ error = 0;
+ }
+
+out:
+ mutex_exit(&mtx);
+ mutex_destroy(&mtx);
+ cv_destroy(&cv);
+
+ /*
+ * If the pool is determined to be active store the status in the
+ * spa->spa_load_info nvlist. If the remote hostname or hostid are
+ * available from configuration read from disk store them as well.
+ * This allows 'zpool import' to generate a more useful message.
+ *
+ * ZPOOL_CONFIG_MMP_STATE - observed pool status (mandatory)
+ * ZPOOL_CONFIG_MMP_HOSTNAME - hostname from the active pool
+ * ZPOOL_CONFIG_MMP_HOSTID - hostid from the active pool
+ */
+ if (error == EREMOTEIO) {
+ char *hostname = "<unknown>";
+ uint64_t hostid = 0;
+
+ if (mmp_label) {
+ if (nvlist_exists(mmp_label, ZPOOL_CONFIG_HOSTNAME)) {
+ hostname = fnvlist_lookup_string(mmp_label,
+ ZPOOL_CONFIG_HOSTNAME);
+ fnvlist_add_string(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_HOSTNAME, hostname);
+ }
+
+ if (nvlist_exists(mmp_label, ZPOOL_CONFIG_HOSTID)) {
+ hostid = fnvlist_lookup_uint64(mmp_label,
+ ZPOOL_CONFIG_HOSTID);
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_HOSTID, hostid);
+ }
+ }
+
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_STATE, MMP_STATE_ACTIVE);
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_TXG, 0);
+
+ error = spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO);
+ }
+
+ if (mmp_label)
+ nvlist_free(mmp_label);
+
+ return (error);
+}
+
/*
* Load an existing storage pool, using the pool's builtin spa_config as a
* source of configuration information.
int parse, i;
uint64_t obj;
boolean_t missing_feat_write = B_FALSE;
+ boolean_t activity_check = B_FALSE;
+ nvlist_t *mos_config;
/*
* If this is an untrusted config, access the pool in read-only mode.
return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, ENXIO));
}
+ /*
+ * For pools which have the multihost property on determine if the
+ * pool is truly inactive and can be safely imported. Prevent
+ * hosts which don't have a hostid set from importing the pool.
+ */
+ activity_check = spa_activity_check_required(spa, ub, config);
+ if (activity_check) {
+ if (ub->ub_mmp_magic == MMP_MAGIC && ub->ub_mmp_delay &&
+ spa_get_hostid() == 0) {
+ nvlist_free(label);
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_STATE, MMP_STATE_NO_HOSTID);
+ return (spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO));
+ }
+
+ error = spa_activity_check(spa, ub, config);
+ if (error) {
+ nvlist_free(label);
+ return (error);
+ }
+
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_STATE, MMP_STATE_INACTIVE);
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_TXG, ub->ub_txg);
+ }
+
/*
* If the pool has an unsupported version we can't open it.
*/
VERIFY(nvlist_lookup_string(nvconfig,
ZPOOL_CONFIG_HOSTNAME, &hostname) == 0);
-#ifdef _KERNEL
- myhostid = zone_get_hostid(NULL);
-#else /* _KERNEL */
- /*
- * We're emulating the system's hostid in userland, so
- * we can't use zone_get_hostid().
- */
- (void) ddi_strtoul(hw_serial, NULL, 10, &myhostid);
-#endif /* _KERNEL */
- if (hostid != 0 && myhostid != 0 &&
- hostid != myhostid) {
+ myhostid = spa_get_hostid();
+ if (hostid && myhostid && hostid != myhostid) {
nvlist_free(nvconfig);
- 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://zfsonlinux.org/msg/ZFS-8000-EY",
- spa_name(spa), hostname,
- (unsigned long)hostid);
return (SET_ERROR(EBADF));
}
}
return (spa_load(spa, state, SPA_IMPORT_EXISTING, B_TRUE));
}
+ /* Grab the checksum salt from the MOS. */
+ error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
+ DMU_POOL_CHECKSUM_SALT, 1,
+ sizeof (spa->spa_cksum_salt.zcs_bytes),
+ spa->spa_cksum_salt.zcs_bytes);
+ if (error == ENOENT) {
+ /* Generate a new salt for subsequent use */
+ (void) random_get_pseudo_bytes(spa->spa_cksum_salt.zcs_bytes,
+ sizeof (spa->spa_cksum_salt.zcs_bytes));
+ } else if (error != 0) {
+ return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO));
+ }
+
if (spa_dir_prop(spa, DMU_POOL_SYNC_BPOBJ, &obj) != 0)
return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO));
error = bpobj_open(&spa->spa_deferred_bpobj, spa->spa_meta_objset, obj);
if (error != 0 && error != ENOENT)
return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO));
+ /*
+ * Load the per-vdev ZAP map. If we have an older pool, this will not
+ * be present; in this case, defer its creation to a later time to
+ * avoid dirtying the MOS this early / out of sync context. See
+ * spa_sync_config_object.
+ */
+
+ /* The sentinel is only available in the MOS config. */
+ if (load_nvlist(spa, spa->spa_config_object, &mos_config) != 0)
+ return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO));
+
+ error = spa_dir_prop(spa, DMU_POOL_VDEV_ZAP_MAP,
+ &spa->spa_all_vdev_zaps);
+
+ if (error == ENOENT) {
+ VERIFY(!nvlist_exists(mos_config,
+ ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS));
+ spa->spa_avz_action = AVZ_ACTION_INITIALIZE;
+ ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev));
+ } else if (error != 0) {
+ return (spa_vdev_err(rvd, VDEV_AUX_CORRUPT_DATA, EIO));
+ } else if (!nvlist_exists(mos_config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS)) {
+ /*
+ * An older version of ZFS overwrote the sentinel value, so
+ * we have orphaned per-vdev ZAPs in the MOS. Defer their
+ * destruction to later; see spa_sync_config_object.
+ */
+ spa->spa_avz_action = AVZ_ACTION_DESTROY;
+ /*
+ * We're assuming that no vdevs have had their ZAPs created
+ * before this. Better be sure of it.
+ */
+ ASSERT0(vdev_count_verify_zaps(spa->spa_root_vdev));
+ }
+ nvlist_free(mos_config);
+
/*
* If we're assembling the pool from the split-off vdevs of
* an existing pool, we don't want to attach the spares & cache
spa_prop_find(spa, ZPOOL_PROP_DELEGATION, &spa->spa_delegation);
spa_prop_find(spa, ZPOOL_PROP_FAILUREMODE, &spa->spa_failmode);
spa_prop_find(spa, ZPOOL_PROP_AUTOEXPAND, &spa->spa_autoexpand);
+ spa_prop_find(spa, ZPOOL_PROP_MULTIHOST, &spa->spa_multihost);
spa_prop_find(spa, ZPOOL_PROP_DEDUPDITTO,
&spa->spa_dedup_ditto);
spa->spa_autoreplace = (autoreplace != 0);
}
+ /*
+ * If the 'multihost' property is set, then never allow a pool to
+ * be imported when the system hostid is zero. The exception to
+ * this rule is zdb which is always allowed to access pools.
+ */
+ if (spa_multihost(spa) && spa_get_hostid() == 0 &&
+ (spa->spa_import_flags & ZFS_IMPORT_SKIP_MMP) == 0) {
+ fnvlist_add_uint64(spa->spa_load_info,
+ ZPOOL_CONFIG_MMP_STATE, MMP_STATE_NO_HOSTID);
+ return (spa_vdev_err(rvd, VDEV_AUX_ACTIVE, EREMOTEIO));
+ }
+
/*
* If the 'autoreplace' property is set, then post a resource notifying
* the ZFS DE that it should not issue any faults for unopenable
spa_set_log_state(spa, SPA_LOG_GOOD);
spa->spa_sync_on = B_TRUE;
txg_sync_start(spa->spa_dsl_pool);
+ mmp_thread_start(spa);
/*
* Wait for all claims to sync. We sync up to the highest
if (config && (rewind_error || state != SPA_LOAD_RECOVER))
spa_config_set(spa, config);
+ else
+ nvlist_free(config);
if (state == SPA_LOAD_RECOVER) {
ASSERT3P(loadinfo, ==, NULL);
ZPOOL_CONFIG_VDEV_STATS, (uint64_t **)&vs, &vsc)
== 0);
vdev_get_stats(vd, vs);
+ vdev_config_generate_stats(vd, l2cache[i]);
+
}
}
}
goto out;
}
- /*
- * The L2ARC currently only supports disk devices in
- * kernel context. For user-level testing, we allow it.
- */
-#ifdef _KERNEL
- if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) &&
- strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) {
- error = SET_ERROR(ENOTBLK);
- vdev_free(vd);
- goto out;
- }
-#endif
vd->vdev_top = vd;
if ((error = vdev_open(vd)) == 0 &&
nvlist_t **newdevs;
/*
- * Generate new dev list by concatentating with the
+ * Generate new dev list by concatenating with the
* current dev list.
*/
VERIFY(nvlist_lookup_nvlist_array(sav->sav_config, config,
spa->spa_uberblock.ub_txg = txg - 1;
spa->spa_uberblock.ub_version = version;
spa->spa_ubsync = spa->spa_uberblock;
+ spa->spa_load_state = SPA_LOAD_CREATE;
/*
* Create "The Godfather" zio to hold all async IOs
if (version >= SPA_VERSION_ZPOOL_HISTORY)
spa_history_create_obj(spa, tx);
+ /*
+ * Generate some random noise for salted checksums to operate on.
+ */
+ (void) random_get_pseudo_bytes(spa->spa_cksum_salt.zcs_bytes,
+ sizeof (spa->spa_cksum_salt.zcs_bytes));
+
/*
* Set pool properties.
*/
spa->spa_delegation = zpool_prop_default_numeric(ZPOOL_PROP_DELEGATION);
spa->spa_failmode = zpool_prop_default_numeric(ZPOOL_PROP_FAILUREMODE);
spa->spa_autoexpand = zpool_prop_default_numeric(ZPOOL_PROP_AUTOEXPAND);
+ spa->spa_multihost = zpool_prop_default_numeric(ZPOOL_PROP_MULTIHOST);
if (props != NULL) {
spa_configfile_set(spa, props, B_FALSE);
spa->spa_sync_on = B_TRUE;
txg_sync_start(spa->spa_dsl_pool);
+ mmp_thread_start(spa);
/*
* We explicitly wait for the first transaction to complete so that our
txg_wait_synced(spa->spa_dsl_pool, txg);
spa_config_sync(spa, B_FALSE, B_TRUE);
+ spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_CREATE);
spa_history_log_version(spa, "create");
*/
spa_evicting_os_wait(spa);
spa->spa_minref = refcount_count(&spa->spa_refcount);
+ spa->spa_load_state = SPA_LOAD_NONE;
mutex_exit(&spa_namespace_lock);
spa_configfile_set(spa, props, B_FALSE);
spa_config_sync(spa, B_FALSE, B_TRUE);
+ spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_IMPORT);
mutex_exit(&spa_namespace_lock);
return (0);
*/
spa_async_request(spa, SPA_ASYNC_AUTOEXPAND);
- mutex_exit(&spa_namespace_lock);
spa_history_log_version(spa, "import");
+
+ spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_IMPORT);
+
zvol_create_minors(spa, pool, B_TRUE);
+ mutex_exit(&spa_namespace_lock);
+
return (0);
}
}
export_spa:
- spa_event_notify(spa, NULL, FM_EREPORT_ZFS_POOL_DESTROY);
+ spa_event_notify(spa, NULL, NULL, ESC_ZFS_POOL_DESTROY);
if (spa->spa_state != POOL_STATE_UNINITIALIZED) {
spa_unload(spa);
mutex_enter(&spa_namespace_lock);
spa_config_update(spa, SPA_CONFIG_UPDATE_POOL);
+ spa_event_notify(spa, NULL, NULL, ESC_ZFS_VDEV_ADD);
mutex_exit(&spa_namespace_lock);
return (0);
newvd->vdev_crtxg = oldvd->vdev_crtxg;
vdev_add_child(pvd, newvd);
+ /*
+ * Reevaluate the parent vdev state.
+ */
+ vdev_propagate_state(pvd);
+
tvd = newvd->vdev_top;
ASSERT(pvd->vdev_top == tvd);
ASSERT(tvd->vdev_parent == rvd);
if (newvd->vdev_isspare) {
spa_spare_activate(newvd);
- spa_event_notify(spa, newvd, FM_EREPORT_ZFS_DEVICE_SPARE);
+ spa_event_notify(spa, newvd, NULL, ESC_ZFS_VDEV_SPARE);
}
oldvdpath = spa_strdup(oldvd->vdev_path);
*/
dsl_resilver_restart(spa->spa_dsl_pool, dtl_max_txg);
+ if (spa->spa_bootfs)
+ spa_event_notify(spa, newvd, NULL, ESC_ZFS_BOOTFS_VDEV_ATTACH);
+
+ spa_event_notify(spa, newvd, NULL, ESC_ZFS_VDEV_ATTACH);
+
/*
* Commit the config
*/
spa_strfree(oldvdpath);
spa_strfree(newvdpath);
- if (spa->spa_bootfs)
- spa_event_notify(spa, newvd, FM_EREPORT_ZFS_BOOTFS_VDEV_ATTACH);
-
return (0);
}
* But first make sure we're not on any *other* txg's DTL list, to
* prevent vd from being accessed after it's freed.
*/
- vdpath = spa_strdup(vd->vdev_path);
+ vdpath = spa_strdup(vd->vdev_path ? vd->vdev_path : "none");
for (t = 0; t < TXG_SIZE; t++)
(void) txg_list_remove_this(&tvd->vdev_dtl_list, vd, t);
vd->vdev_detached = B_TRUE;
vdev_dirty(tvd, VDD_DTL, vd, txg);
- spa_event_notify(spa, vd, FM_EREPORT_ZFS_DEVICE_REMOVE);
+ spa_event_notify(spa, vd, NULL, ESC_ZFS_VDEV_REMOVE);
/* hang on to the spa before we release the lock */
spa_open_ref(spa, FTAG);
vml[c]->vdev_top->vdev_asize) == 0);
VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_ASHIFT,
vml[c]->vdev_top->vdev_ashift) == 0);
+
+ /* transfer per-vdev ZAPs */
+ ASSERT3U(vml[c]->vdev_leaf_zap, !=, 0);
+ VERIFY0(nvlist_add_uint64(child[c],
+ ZPOOL_CONFIG_VDEV_LEAF_ZAP, vml[c]->vdev_leaf_zap));
+
+ ASSERT3U(vml[c]->vdev_top->vdev_top_zap, !=, 0);
+ VERIFY0(nvlist_add_uint64(child[c],
+ ZPOOL_CONFIG_VDEV_TOP_ZAP,
+ vml[c]->vdev_parent->vdev_top_zap));
}
if (error != 0) {
spa->spa_config_txg) == 0);
VERIFY(nvlist_add_uint64(config, ZPOOL_CONFIG_POOL_GUID,
spa_generate_guid(NULL)) == 0);
+ VERIFY0(nvlist_add_boolean(config, ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS));
(void) nvlist_lookup_string(props,
zpool_prop_to_name(ZPOOL_PROP_ALTROOT), &altroot);
/* add the new pool to the namespace */
newspa = spa_add(newname, config, altroot);
+ newspa->spa_avz_action = AVZ_ACTION_REBUILD;
newspa->spa_config_txg = spa->spa_config_txg;
spa_set_log_state(newspa, SPA_LOG_CLEAR);
if (error == 0)
spa_history_log_internal(spa, "detach", tx,
"vdev=%s", vml[c]->vdev_path);
+
vdev_free(vml[c]);
}
}
+ spa->spa_avz_action = AVZ_ACTION_REBUILD;
vdev_config_dirty(spa->spa_root_vdev);
spa->spa_config_splitting = NULL;
nvlist_free(nvl);
static void
spa_vdev_remove_aux(nvlist_t *config, char *name, nvlist_t **dev, int count,
- nvlist_t *dev_to_remove)
+ nvlist_t *dev_to_remove)
{
nvlist_t **newdev = NULL;
int i, j;
spa_vdev_remove(spa_t *spa, uint64_t guid, boolean_t unspare)
{
vdev_t *vd;
+ sysevent_t *ev = NULL;
metaslab_group_t *mg;
nvlist_t **spares, **l2cache, *nv;
uint64_t txg = 0;
* in this pool.
*/
if (vd == NULL || unspare) {
+ if (vd == NULL)
+ vd = spa_lookup_by_guid(spa, guid, B_TRUE);
+ ev = spa_event_create(spa, vd, NULL,
+ ESC_ZFS_VDEV_REMOVE_AUX);
spa_vdev_remove_aux(spa->spa_spares.sav_config,
ZPOOL_CONFIG_SPARES, spares, nspares, nv);
spa_load_spares(spa);
/*
* Cache devices can always be removed.
*/
+ vd = spa_lookup_by_guid(spa, guid, B_TRUE);
+ ev = spa_event_create(spa, vd, NULL, ESC_ZFS_VDEV_REMOVE_AUX);
spa_vdev_remove_aux(spa->spa_l2cache.sav_config,
ZPOOL_CONFIG_L2CACHE, l2cache, nl2cache, nv);
spa_load_l2cache(spa);
/*
* Clean up the vdev namespace.
*/
+ ev = spa_event_create(spa, vd, NULL, ESC_ZFS_VDEV_REMOVE_DEV);
spa_vdev_remove_from_namespace(spa, vd);
} else if (vd != NULL) {
}
if (!locked)
- return (spa_vdev_exit(spa, NULL, txg, error));
+ error = spa_vdev_exit(spa, NULL, txg, error);
+
+ if (ev)
+ spa_event_post(ev);
return (error);
}
* SPA Scanning
* ==========================================================================
*/
+int
+spa_scrub_pause_resume(spa_t *spa, pool_scrub_cmd_t cmd)
+{
+ ASSERT(spa_config_held(spa, SCL_ALL, RW_WRITER) == 0);
+
+ if (dsl_scan_resilvering(spa->spa_dsl_pool))
+ return (SET_ERROR(EBUSY));
+
+ return (dsl_scrub_set_pause_resume(spa->spa_dsl_pool, cmd));
+}
int
spa_scan_stop(spa_t *spa)
if (!vd->vdev_ops->vdev_op_leaf || vd->vdev_physpath == NULL)
return;
- spa_event_notify(vd->vdev_spa, vd, FM_EREPORT_ZFS_DEVICE_AUTOEXPAND);
+ spa_event_notify(vd->vdev_spa, vd, NULL, ESC_ZFS_VDEV_AUTOEXPAND);
}
static void
mutex_exit(&spa->spa_async_lock);
}
+static boolean_t
+spa_async_tasks_pending(spa_t *spa)
+{
+ uint_t non_config_tasks;
+ uint_t config_task;
+ boolean_t config_task_suspended;
+
+ non_config_tasks = spa->spa_async_tasks & ~SPA_ASYNC_CONFIG_UPDATE;
+ config_task = spa->spa_async_tasks & SPA_ASYNC_CONFIG_UPDATE;
+ if (spa->spa_ccw_fail_time == 0) {
+ config_task_suspended = B_FALSE;
+ } else {
+ config_task_suspended =
+ (gethrtime() - spa->spa_ccw_fail_time) <
+ ((hrtime_t)zfs_ccw_retry_interval * NANOSEC);
+ }
+
+ return (non_config_tasks || (config_task && !config_task_suspended));
+}
+
static void
spa_async_dispatch(spa_t *spa)
{
mutex_enter(&spa->spa_async_lock);
- if (spa->spa_async_tasks && !spa->spa_async_suspended &&
+ if (spa_async_tasks_pending(spa) &&
+ !spa->spa_async_suspended &&
spa->spa_async_thread == NULL &&
- rootdir != NULL && !vn_is_readonly(rootdir))
+ rootdir != NULL)
spa->spa_async_thread = thread_create(NULL, 0,
spa_async_thread, spa, 0, &p0, TS_RUN, maxclsyspri);
mutex_exit(&spa->spa_async_lock);
sav->sav_sync = B_FALSE;
}
+/*
+ * Rebuild spa's all-vdev ZAP from the vdev ZAPs indicated in each vdev_t.
+ * The all-vdev ZAP must be empty.
+ */
+static void
+spa_avz_build(vdev_t *vd, uint64_t avz, dmu_tx_t *tx)
+{
+ spa_t *spa = vd->vdev_spa;
+ uint64_t i;
+
+ if (vd->vdev_top_zap != 0) {
+ VERIFY0(zap_add_int(spa->spa_meta_objset, avz,
+ vd->vdev_top_zap, tx));
+ }
+ if (vd->vdev_leaf_zap != 0) {
+ VERIFY0(zap_add_int(spa->spa_meta_objset, avz,
+ vd->vdev_leaf_zap, tx));
+ }
+ for (i = 0; i < vd->vdev_children; i++) {
+ spa_avz_build(vd->vdev_child[i], avz, tx);
+ }
+}
+
static void
spa_sync_config_object(spa_t *spa, dmu_tx_t *tx)
{
nvlist_t *config;
- if (list_is_empty(&spa->spa_config_dirty_list))
+ /*
+ * If the pool is being imported from a pre-per-vdev-ZAP version of ZFS,
+ * its config may not be dirty but we still need to build per-vdev ZAPs.
+ * Similarly, if the pool is being assembled (e.g. after a split), we
+ * need to rebuild the AVZ although the config may not be dirty.
+ */
+ if (list_is_empty(&spa->spa_config_dirty_list) &&
+ spa->spa_avz_action == AVZ_ACTION_NONE)
return;
spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
+ ASSERT(spa->spa_avz_action == AVZ_ACTION_NONE ||
+ spa->spa_avz_action == AVZ_ACTION_INITIALIZE ||
+ spa->spa_all_vdev_zaps != 0);
+
+ if (spa->spa_avz_action == AVZ_ACTION_REBUILD) {
+ zap_cursor_t zc;
+ zap_attribute_t za;
+
+ /* Make and build the new AVZ */
+ uint64_t new_avz = zap_create(spa->spa_meta_objset,
+ DMU_OTN_ZAP_METADATA, DMU_OT_NONE, 0, tx);
+ spa_avz_build(spa->spa_root_vdev, new_avz, tx);
+
+ /* Diff old AVZ with new one */
+ for (zap_cursor_init(&zc, spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps);
+ zap_cursor_retrieve(&zc, &za) == 0;
+ zap_cursor_advance(&zc)) {
+ uint64_t vdzap = za.za_first_integer;
+ if (zap_lookup_int(spa->spa_meta_objset, new_avz,
+ vdzap) == ENOENT) {
+ /*
+ * ZAP is listed in old AVZ but not in new one;
+ * destroy it
+ */
+ VERIFY0(zap_destroy(spa->spa_meta_objset, vdzap,
+ tx));
+ }
+ }
+
+ zap_cursor_fini(&zc);
+
+ /* Destroy the old AVZ */
+ VERIFY0(zap_destroy(spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps, tx));
+
+ /* Replace the old AVZ in the dir obj with the new one */
+ VERIFY0(zap_update(spa->spa_meta_objset,
+ DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_VDEV_ZAP_MAP,
+ sizeof (new_avz), 1, &new_avz, tx));
+
+ spa->spa_all_vdev_zaps = new_avz;
+ } else if (spa->spa_avz_action == AVZ_ACTION_DESTROY) {
+ zap_cursor_t zc;
+ zap_attribute_t za;
+
+ /* Walk through the AVZ and destroy all listed ZAPs */
+ for (zap_cursor_init(&zc, spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps);
+ zap_cursor_retrieve(&zc, &za) == 0;
+ zap_cursor_advance(&zc)) {
+ uint64_t zap = za.za_first_integer;
+ VERIFY0(zap_destroy(spa->spa_meta_objset, zap, tx));
+ }
+
+ zap_cursor_fini(&zc);
+
+ /* Destroy and unlink the AVZ itself */
+ VERIFY0(zap_destroy(spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps, tx));
+ VERIFY0(zap_remove(spa->spa_meta_objset,
+ DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_VDEV_ZAP_MAP, tx));
+ spa->spa_all_vdev_zaps = 0;
+ }
+
+ if (spa->spa_all_vdev_zaps == 0) {
+ spa->spa_all_vdev_zaps = zap_create_link(spa->spa_meta_objset,
+ DMU_OTN_ZAP_METADATA, DMU_POOL_DIRECTORY_OBJECT,
+ DMU_POOL_VDEV_ZAP_MAP, tx);
+ }
+ spa->spa_avz_action = AVZ_ACTION_NONE;
+
+ /* Create ZAPs for vdevs that don't have them. */
+ vdev_construct_zaps(spa->spa_root_vdev, tx);
+
config = spa_config_generate(spa, spa->spa_root_vdev,
dmu_tx_get_txg(tx), B_FALSE);
spa_config_exit(spa, SCL_STATE, FTAG);
- if (spa->spa_config_syncing)
- nvlist_free(spa->spa_config_syncing);
+ nvlist_free(spa->spa_config_syncing);
spa->spa_config_syncing = config;
spa_sync_nvlist(spa, spa->spa_config_object, config, tx);
case ZPOOL_PROP_VERSION:
intval = fnvpair_value_uint64(elem);
/*
- * The version is synced seperatly before other
+ * The version is synced separately before other
* properties and should be correct by now.
*/
ASSERT3U(spa_version(spa), >=, intval);
* We need to dirty the configuration on all the vdevs
* so that their labels get updated. It's unnecessary
* to do this for pool creation since the vdev's
- * configuratoin has already been dirtied.
+ * configuration has already been dirtied.
*/
if (tx->tx_txg != TXG_INITIAL)
vdev_config_dirty(spa->spa_root_vdev);
spa_async_request(spa,
SPA_ASYNC_AUTOEXPAND);
break;
+ case ZPOOL_PROP_MULTIHOST:
+ spa->spa_multihost = intval;
+ break;
case ZPOOL_PROP_DEDUPDITTO:
spa->spa_dedup_ditto = intval;
break;
if (lz4_en && !lz4_ac)
spa_feature_incr(spa, SPA_FEATURE_LZ4_COMPRESS, tx);
}
+
+ /*
+ * If we haven't written the salt, do so now. Note that the
+ * feature may not be activated yet, but that's fine since
+ * the presence of this ZAP entry is backwards compatible.
+ */
+ if (zap_contains(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT,
+ DMU_POOL_CHECKSUM_SALT) == ENOENT) {
+ VERIFY0(zap_add(spa->spa_meta_objset,
+ DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_CHECKSUM_SALT, 1,
+ sizeof (spa->spa_cksum_salt.zcs_bytes),
+ spa->spa_cksum_salt.zcs_bytes, tx));
+ }
+
rrw_exit(&dp->dp_config_rwlock, FTAG);
}
dsl_pool_t *dp = spa->spa_dsl_pool;
objset_t *mos = spa->spa_meta_objset;
bplist_t *free_bpl = &spa->spa_free_bplist[txg & TXG_MASK];
+ metaslab_class_t *mc;
vdev_t *rvd = spa->spa_root_vdev;
vdev_t *vd;
dmu_tx_t *tx;
int error;
+ uint32_t max_queue_depth = zfs_vdev_async_write_max_active *
+ zfs_vdev_queue_depth_pct / 100;
+ uint64_t queue_depth_total;
int c;
VERIFY(spa_writeable(spa));
spa->spa_syncing_txg = txg;
spa->spa_sync_pass = 0;
+ mutex_enter(&spa->spa_alloc_lock);
+ VERIFY0(avl_numnodes(&spa->spa_alloc_tree));
+ mutex_exit(&spa->spa_alloc_lock);
+
/*
* If there are any pending vdev state changes, convert them
* into config changes that go out with this transaction group.
tx = dmu_tx_create_assigned(dp, txg);
spa->spa_sync_starttime = gethrtime();
- taskq_cancel_id(system_taskq, spa->spa_deadman_tqid);
- spa->spa_deadman_tqid = taskq_dispatch_delay(system_taskq,
+ taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid);
+ spa->spa_deadman_tqid = taskq_dispatch_delay(system_delay_taskq,
spa_deadman, spa, TQ_SLEEP, ddi_get_lbolt() +
NSEC_TO_TICK(spa->spa_deadman_synctime));
}
}
+ /*
+ * Set the top-level vdev's max queue depth. Evaluate each
+ * top-level's async write queue depth in case it changed.
+ * The max queue depth will not change in the middle of syncing
+ * out this txg.
+ */
+ queue_depth_total = 0;
+ for (c = 0; c < rvd->vdev_children; c++) {
+ vdev_t *tvd = rvd->vdev_child[c];
+ metaslab_group_t *mg = tvd->vdev_mg;
+
+ if (mg == NULL || mg->mg_class != spa_normal_class(spa) ||
+ !metaslab_group_initialized(mg))
+ continue;
+
+ /*
+ * It is safe to do a lock-free check here because only async
+ * allocations look at mg_max_alloc_queue_depth, and async
+ * allocations all happen from spa_sync().
+ */
+ ASSERT0(refcount_count(&mg->mg_alloc_queue_depth));
+ mg->mg_max_alloc_queue_depth = max_queue_depth;
+ queue_depth_total += mg->mg_max_alloc_queue_depth;
+ }
+ mc = spa_normal_class(spa);
+ ASSERT0(refcount_count(&mc->mc_alloc_slots));
+ mc->mc_alloc_max_slots = queue_depth_total;
+ mc->mc_alloc_throttle_enabled = zio_dva_throttle_enabled;
+
+ ASSERT3U(mc->mc_alloc_max_slots, <=,
+ max_queue_depth * rvd->vdev_children);
+
/*
* Iterate to convergence.
*/
} while (dmu_objset_is_dirty(mos, txg));
+#ifdef ZFS_DEBUG
+ if (!list_is_empty(&spa->spa_config_dirty_list)) {
+ /*
+ * Make sure that the number of ZAPs for all the vdevs matches
+ * the number of ZAPs in the per-vdev ZAP list. This only gets
+ * called if the config is dirty; otherwise there may be
+ * outstanding AVZ operations that weren't completed in
+ * spa_sync_config_object.
+ */
+ uint64_t all_vdev_zap_entry_count;
+ ASSERT0(zap_count(spa->spa_meta_objset,
+ spa->spa_all_vdev_zaps, &all_vdev_zap_entry_count));
+ ASSERT3U(vdev_count_verify_zaps(spa->spa_root_vdev), ==,
+ all_vdev_zap_entry_count);
+ }
+#endif
+
/*
* Rewrite the vdev configuration (which includes the uberblock)
* to commit the transaction group.
if (svdcount == SPA_DVAS_PER_BP)
break;
}
- error = vdev_config_sync(svd, svdcount, txg, B_FALSE);
- if (error != 0)
- error = vdev_config_sync(svd, svdcount, txg,
- B_TRUE);
+ error = vdev_config_sync(svd, svdcount, txg);
} else {
error = vdev_config_sync(rvd->vdev_child,
- rvd->vdev_children, txg, B_FALSE);
- if (error != 0)
- error = vdev_config_sync(rvd->vdev_child,
- rvd->vdev_children, txg, B_TRUE);
+ rvd->vdev_children, txg);
}
if (error == 0)
}
dmu_tx_commit(tx);
- taskq_cancel_id(system_taskq, spa->spa_deadman_tqid);
+ taskq_cancel_id(system_delay_taskq, spa->spa_deadman_tqid);
spa->spa_deadman_tqid = 0;
/*
spa->spa_config_syncing = NULL;
}
- spa->spa_ubsync = spa->spa_uberblock;
-
dsl_pool_sync_done(dp, txg);
+ mutex_enter(&spa->spa_alloc_lock);
+ VERIFY0(avl_numnodes(&spa->spa_alloc_tree));
+ mutex_exit(&spa->spa_alloc_lock);
+
/*
* Update usable space statistics.
*/
spa->spa_sync_pass = 0;
+ /*
+ * Update the last synced uberblock here. We want to do this at
+ * the end of spa_sync() so that consumers of spa_last_synced_txg()
+ * will be guaranteed that all the processing associated with
+ * that txg has been completed.
+ */
+ spa->spa_ubsync = spa->spa_uberblock;
spa_config_exit(spa, SCL_CONFIG, FTAG);
spa_handle_ignored_writes(spa);
return (B_FALSE);
}
+static sysevent_t *
+spa_event_create(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, const char *name)
+{
+ sysevent_t *ev = NULL;
+#ifdef _KERNEL
+ nvlist_t *resource;
+
+ resource = zfs_event_create(spa, vd, FM_SYSEVENT_CLASS, name, hist_nvl);
+ if (resource) {
+ ev = kmem_alloc(sizeof (sysevent_t), KM_SLEEP);
+ ev->resource = resource;
+ }
+#endif
+ return (ev);
+}
+
+static void
+spa_event_post(sysevent_t *ev)
+{
+#ifdef _KERNEL
+ if (ev) {
+ zfs_zevent_post(ev->resource, NULL, zfs_zevent_post_cb);
+ kmem_free(ev, sizeof (*ev));
+ }
+#endif
+}
+
/*
- * Post a FM_EREPORT_ZFS_* event from sys/fm/fs/zfs.h. The payload will be
+ * Post a zevent corresponding to the given sysevent. The 'name' must be one
+ * of the event definitions in sys/sysevent/eventdefs.h. The payload will be
* filled in from the spa and (optionally) the vdev. This doesn't do anything
* in the userland libzpool, as we don't want consumers to misinterpret ztest
* or zdb as real changes.
*/
void
-spa_event_notify(spa_t *spa, vdev_t *vd, const char *name)
+spa_event_notify(spa_t *spa, vdev_t *vd, nvlist_t *hist_nvl, const char *name)
{
-#ifdef _KERNEL
- zfs_ereport_post(name, spa, vd, NULL, 0, 0);
-#endif
+ spa_event_post(spa_event_create(spa, vd, hist_nvl, name));
}
#if defined(_KERNEL) && defined(HAVE_SPL)
MODULE_PARM_DESC(spa_load_verify_data,
"Set to traverse data on pool import");
+/* CSTYLED */
module_param(zio_taskq_batch_pct, uint, 0444);
MODULE_PARM_DESC(zio_taskq_batch_pct,
"Percentage of CPUs to run an IO worker thread");
projects / mirror_ubuntu-bionic-kernel.git / blobdiff