06eeb2ad640ce72d394ac521094bed7681044408ek/*
06eeb2ad640ce72d394ac521094bed7681044408ek * CDDL HEADER START
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * The contents of this file are subject to the terms of the
06eeb2ad640ce72d394ac521094bed7681044408ek * Common Development and Distribution License (the "License").
06eeb2ad640ce72d394ac521094bed7681044408ek * You may not use this file except in compliance with the License.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
06eeb2ad640ce72d394ac521094bed7681044408ek * or http://www.opensolaris.org/os/licensing.
06eeb2ad640ce72d394ac521094bed7681044408ek * See the License for the specific language governing permissions
06eeb2ad640ce72d394ac521094bed7681044408ek * and limitations under the License.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * When distributing Covered Code, include this CDDL HEADER in each
06eeb2ad640ce72d394ac521094bed7681044408ek * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
06eeb2ad640ce72d394ac521094bed7681044408ek * If applicable, add the following below this CDDL HEADER, with the
06eeb2ad640ce72d394ac521094bed7681044408ek * fields enclosed by brackets "[]" replaced with your own identifying
06eeb2ad640ce72d394ac521094bed7681044408ek * information: Portions Copyright [yyyy] [name of copyright owner]
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * CDDL HEADER END
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek/*
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrens * Copyright (c) 2011, 2015 by Delphix. All rights reserved.
c3d26abc9ee97b4f60233556aadeb57e0bd30bb9Matthew Ahrens * Copyright (c) 2014 Integros [integros.com]
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/spa.h>
06eeb2ad640ce72d394ac521094bed7681044408ek#include <sys/spa_impl.h>
06eeb2ad640ce72d394ac521094bed7681044408ek#include <sys/zap.h>
06eeb2ad640ce72d394ac521094bed7681044408ek#include <sys/dsl_synctask.h>
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/dmu_tx.h>
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/dmu_objset.h>
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens#include <sys/dsl_dataset.h>
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens#include <sys/dsl_dir.h>
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/utsname.h>
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/cmn_err.h>
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/sunddi.h>
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens#include <sys/cred.h>
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling#include "zfs_comutil.h"
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#ifdef _KERNEL
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#include <sys/zone.h>
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#endif
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek/*
06eeb2ad640ce72d394ac521094bed7681044408ek * Routines to manage the on-disk history log.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * The history log is stored as a dmu object containing
06eeb2ad640ce72d394ac521094bed7681044408ek * <packed record length, record nvlist> tuples.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * Where "record nvlist" is a nvlist containing uint64_ts and strings, and
06eeb2ad640ce72d394ac521094bed7681044408ek * "packed record length" is the packed length of the "record nvlist" stored
06eeb2ad640ce72d394ac521094bed7681044408ek * as a little endian uint64_t.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * The log is implemented as a ring buffer, though the original creation
06eeb2ad640ce72d394ac521094bed7681044408ek * of the pool ('zpool create') is never overwritten.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * The history log is tracked as object 'spa_t::spa_history'. The bonus buffer
06eeb2ad640ce72d394ac521094bed7681044408ek * of 'spa_history' stores the offsets for logging/retrieving history as
06eeb2ad640ce72d394ac521094bed7681044408ek * 'spa_history_phys_t'. 'sh_pool_create_len' is the ending offset in bytes of
06eeb2ad640ce72d394ac521094bed7681044408ek * where the 'zpool create' record is stored. This allows us to never
06eeb2ad640ce72d394ac521094bed7681044408ek * overwrite the original creation of the pool. 'sh_phys_max_off' is the
06eeb2ad640ce72d394ac521094bed7681044408ek * physical ending offset in bytes of the log. This tells you the length of
06eeb2ad640ce72d394ac521094bed7681044408ek * the buffer. 'sh_eof' is the logical EOF (in bytes). Whenever a record
06eeb2ad640ce72d394ac521094bed7681044408ek * is added, 'sh_eof' is incremented by the the size of the record.
06eeb2ad640ce72d394ac521094bed7681044408ek * 'sh_eof' is never decremented. 'sh_bof' is the logical BOF (in bytes).
06eeb2ad640ce72d394ac521094bed7681044408ek * This is where the consumer should start reading from after reading in
06eeb2ad640ce72d394ac521094bed7681044408ek * the 'zpool create' portion of the log.
06eeb2ad640ce72d394ac521094bed7681044408ek *
06eeb2ad640ce72d394ac521094bed7681044408ek * 'sh_records_lost' keeps track of how many records have been overwritten
06eeb2ad640ce72d394ac521094bed7681044408ek * and permanently lost.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek/* convert a logical offset to physical */
06eeb2ad640ce72d394ac521094bed7681044408ekstatic uint64_t
06eeb2ad640ce72d394ac521094bed7681044408ekspa_history_log_to_phys(uint64_t log_off, spa_history_phys_t *shpp)
06eeb2ad640ce72d394ac521094bed7681044408ek{
06eeb2ad640ce72d394ac521094bed7681044408ek uint64_t phys_len;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek phys_len = shpp->sh_phys_max_off - shpp->sh_pool_create_len;
06eeb2ad640ce72d394ac521094bed7681044408ek return ((log_off - shpp->sh_pool_create_len) % phys_len
06eeb2ad640ce72d394ac521094bed7681044408ek + shpp->sh_pool_create_len);
06eeb2ad640ce72d394ac521094bed7681044408ek}
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ekvoid
06eeb2ad640ce72d394ac521094bed7681044408ekspa_history_create_obj(spa_t *spa, dmu_tx_t *tx)
06eeb2ad640ce72d394ac521094bed7681044408ek{
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_t *dbp;
06eeb2ad640ce72d394ac521094bed7681044408ek spa_history_phys_t *shpp;
06eeb2ad640ce72d394ac521094bed7681044408ek objset_t *mos = spa->spa_meta_objset;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek ASSERT(spa->spa_history == 0);
06eeb2ad640ce72d394ac521094bed7681044408ek spa->spa_history = dmu_object_alloc(mos, DMU_OT_SPA_HISTORY,
b515258426fed6c7311fd3f1dea697cfbd4085c6Matthew Ahrens SPA_OLD_MAXBLOCKSIZE, DMU_OT_SPA_HISTORY_OFFSETS,
06eeb2ad640ce72d394ac521094bed7681044408ek sizeof (spa_history_phys_t), tx);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek VERIFY(zap_add(mos, DMU_POOL_DIRECTORY_OBJECT,
06eeb2ad640ce72d394ac521094bed7681044408ek DMU_POOL_HISTORY, sizeof (uint64_t), 1,
06eeb2ad640ce72d394ac521094bed7681044408ek &spa->spa_history, tx) == 0);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek VERIFY(0 == dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp));
06eeb2ad640ce72d394ac521094bed7681044408ek ASSERT(dbp->db_size >= sizeof (spa_history_phys_t));
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek shpp = dbp->db_data;
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_will_dirty(dbp, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /*
06eeb2ad640ce72d394ac521094bed7681044408ek * Figure out maximum size of history log. We set it at
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrens * 0.1% of pool size, with a max of 1G and min of 128KB.
06eeb2ad640ce72d394ac521094bed7681044408ek */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick shpp->sh_phys_max_off =
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrens metaslab_class_get_dspace(spa_normal_class(spa)) / 1000;
19b94df933188a15d4f0d6c568f0bab3f127892eMatthew Ahrens shpp->sh_phys_max_off = MIN(shpp->sh_phys_max_off, 1<<30);
06eeb2ad640ce72d394ac521094bed7681044408ek shpp->sh_phys_max_off = MAX(shpp->sh_phys_max_off, 128<<10);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_rele(dbp, FTAG);
06eeb2ad640ce72d394ac521094bed7681044408ek}
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek/*
06eeb2ad640ce72d394ac521094bed7681044408ek * Change 'sh_bof' to the beginning of the next record.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ekstatic int
06eeb2ad640ce72d394ac521094bed7681044408ekspa_history_advance_bof(spa_t *spa, spa_history_phys_t *shpp)
06eeb2ad640ce72d394ac521094bed7681044408ek{
06eeb2ad640ce72d394ac521094bed7681044408ek objset_t *mos = spa->spa_meta_objset;
06eeb2ad640ce72d394ac521094bed7681044408ek uint64_t firstread, reclen, phys_bof;
06eeb2ad640ce72d394ac521094bed7681044408ek char buf[sizeof (reclen)];
06eeb2ad640ce72d394ac521094bed7681044408ek int err;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek phys_bof = spa_history_log_to_phys(shpp->sh_bof, shpp);
06eeb2ad640ce72d394ac521094bed7681044408ek firstread = MIN(sizeof (reclen), shpp->sh_phys_max_off - phys_bof);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek if ((err = dmu_read(mos, spa->spa_history, phys_bof, firstread,
7bfdf011e081684f853a3242d0296695110d9d84Neil Perrin buf, DMU_READ_PREFETCH)) != 0)
06eeb2ad640ce72d394ac521094bed7681044408ek return (err);
06eeb2ad640ce72d394ac521094bed7681044408ek if (firstread != sizeof (reclen)) {
06eeb2ad640ce72d394ac521094bed7681044408ek if ((err = dmu_read(mos, spa->spa_history,
06eeb2ad640ce72d394ac521094bed7681044408ek shpp->sh_pool_create_len, sizeof (reclen) - firstread,
7bfdf011e081684f853a3242d0296695110d9d84Neil Perrin buf + firstread, DMU_READ_PREFETCH)) != 0)
06eeb2ad640ce72d394ac521094bed7681044408ek return (err);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek reclen = LE_64(*((uint64_t *)buf));
06eeb2ad640ce72d394ac521094bed7681044408ek shpp->sh_bof += reclen + sizeof (reclen);
06eeb2ad640ce72d394ac521094bed7681044408ek shpp->sh_records_lost++;
06eeb2ad640ce72d394ac521094bed7681044408ek return (0);
06eeb2ad640ce72d394ac521094bed7681044408ek}
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ekstatic int
06eeb2ad640ce72d394ac521094bed7681044408ekspa_history_write(spa_t *spa, void *buf, uint64_t len, spa_history_phys_t *shpp,
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_tx_t *tx)
06eeb2ad640ce72d394ac521094bed7681044408ek{
06eeb2ad640ce72d394ac521094bed7681044408ek uint64_t firstwrite, phys_eof;
06eeb2ad640ce72d394ac521094bed7681044408ek objset_t *mos = spa->spa_meta_objset;
06eeb2ad640ce72d394ac521094bed7681044408ek int err;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek ASSERT(MUTEX_HELD(&spa->spa_history_lock));
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /* see if we need to reset logical BOF */
06eeb2ad640ce72d394ac521094bed7681044408ek while (shpp->sh_phys_max_off - shpp->sh_pool_create_len -
06eeb2ad640ce72d394ac521094bed7681044408ek (shpp->sh_eof - shpp->sh_bof) <= len) {
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks if ((err = spa_history_advance_bof(spa, shpp)) != 0) {
06eeb2ad640ce72d394ac521094bed7681044408ek return (err);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks }
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp);
06eeb2ad640ce72d394ac521094bed7681044408ek firstwrite = MIN(len, shpp->sh_phys_max_off - phys_eof);
06eeb2ad640ce72d394ac521094bed7681044408ek shpp->sh_eof += len;
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_write(mos, spa->spa_history, phys_eof, firstwrite, buf, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek len -= firstwrite;
06eeb2ad640ce72d394ac521094bed7681044408ek if (len > 0) {
06eeb2ad640ce72d394ac521094bed7681044408ek /* write out the rest at the beginning of physical file */
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_write(mos, spa->spa_history, shpp->sh_pool_create_len,
06eeb2ad640ce72d394ac521094bed7681044408ek len, (char *)buf + firstwrite, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek return (0);
06eeb2ad640ce72d394ac521094bed7681044408ek}
06eeb2ad640ce72d394ac521094bed7681044408ek
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarksstatic char *
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_zone(void)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#ifdef _KERNEL
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens if (INGLOBALZONE(curproc))
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens return (NULL);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks return (curproc->p_zone->zone_name);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#else
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens return (NULL);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#endif
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
06eeb2ad640ce72d394ac521094bed7681044408ek/*
06eeb2ad640ce72d394ac521094bed7681044408ek * Write out a history event.
06eeb2ad640ce72d394ac521094bed7681044408ek */
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens/*ARGSUSED*/
e7437265dc2a4920c197ed4337665539d358b22cahrensstatic void
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrensspa_history_log_sync(void *arg, dmu_tx_t *tx)
06eeb2ad640ce72d394ac521094bed7681044408ek{
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens nvlist_t *nvl = arg;
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens spa_t *spa = dmu_tx_pool(tx)->dp_spa;
06eeb2ad640ce72d394ac521094bed7681044408ek objset_t *mos = spa->spa_meta_objset;
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_t *dbp;
06eeb2ad640ce72d394ac521094bed7681044408ek spa_history_phys_t *shpp;
06eeb2ad640ce72d394ac521094bed7681044408ek size_t reclen;
06eeb2ad640ce72d394ac521094bed7681044408ek uint64_t le_len;
06eeb2ad640ce72d394ac521094bed7681044408ek char *record_packed = NULL;
06eeb2ad640ce72d394ac521094bed7681044408ek int ret;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /*
06eeb2ad640ce72d394ac521094bed7681044408ek * If we have an older pool that doesn't have a command
06eeb2ad640ce72d394ac521094bed7681044408ek * history object, create it now.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_enter(&spa->spa_history_lock);
06eeb2ad640ce72d394ac521094bed7681044408ek if (!spa->spa_history)
06eeb2ad640ce72d394ac521094bed7681044408ek spa_history_create_obj(spa, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_exit(&spa->spa_history_lock);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /*
06eeb2ad640ce72d394ac521094bed7681044408ek * Get the offset of where we need to write via the bonus buffer.
06eeb2ad640ce72d394ac521094bed7681044408ek * Update the offset when the write completes.
06eeb2ad640ce72d394ac521094bed7681044408ek */
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens VERIFY0(dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp));
06eeb2ad640ce72d394ac521094bed7681044408ek shpp = dbp->db_data;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_will_dirty(dbp, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek#ifdef ZFS_DEBUG
06eeb2ad640ce72d394ac521094bed7681044408ek {
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_object_info_t doi;
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_object_info_from_db(dbp, &doi);
06eeb2ad640ce72d394ac521094bed7681044408ek ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek#endif
06eeb2ad640ce72d394ac521094bed7681044408ek
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_uint64(nvl, ZPOOL_HIST_TIME, gethrestime_sec());
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#ifdef _KERNEL
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvl, ZPOOL_HIST_HOST, utsname.nodename);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks#endif
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens if (nvlist_exists(nvl, ZPOOL_HIST_CMD)) {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens zfs_dbgmsg("command: %s",
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_CMD));
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens } else if (nvlist_exists(nvl, ZPOOL_HIST_INT_NAME)) {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens if (nvlist_exists(nvl, ZPOOL_HIST_DSNAME)) {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens zfs_dbgmsg("txg %lld %s %s (id %llu) %s",
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG),
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME),
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_DSNAME),
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_uint64(nvl, ZPOOL_HIST_DSID),
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR));
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens } else {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens zfs_dbgmsg("txg %lld %s %s",
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_uint64(nvl, ZPOOL_HIST_TXG),
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_NAME),
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_INT_STR));
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens }
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens } else if (nvlist_exists(nvl, ZPOOL_HIST_IOCTL)) {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens zfs_dbgmsg("ioctl %s",
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_lookup_string(nvl, ZPOOL_HIST_IOCTL));
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks }
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens record_packed = fnvlist_pack(nvl, &reclen);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_enter(&spa->spa_history_lock);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /* write out the packed length as little endian */
55434c770c89aa1b84474f2559a106803511aba0ek le_len = LE_64((uint64_t)reclen);
06eeb2ad640ce72d394ac521094bed7681044408ek ret = spa_history_write(spa, &le_len, sizeof (le_len), shpp, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek if (!ret)
06eeb2ad640ce72d394ac521094bed7681044408ek ret = spa_history_write(spa, record_packed, reclen, shpp, tx);
06eeb2ad640ce72d394ac521094bed7681044408ek
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens /* The first command is the create, which we keep forever */
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens if (ret == 0 && shpp->sh_pool_create_len == 0 &&
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvlist_exists(nvl, ZPOOL_HIST_CMD)) {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens shpp->sh_pool_create_len = shpp->sh_bof = shpp->sh_eof;
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_exit(&spa->spa_history_lock);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_pack_free(record_packed, reclen);
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_rele(dbp, FTAG);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_free(nvl);
06eeb2ad640ce72d394ac521094bed7681044408ek}
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek/*
06eeb2ad640ce72d394ac521094bed7681044408ek * Write out a history event.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ekint
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_log(spa_t *spa, const char *msg)
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens{
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens int err;
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvlist_t *nvl = fnvlist_alloc();
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvl, ZPOOL_HIST_CMD, msg);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens err = spa_history_log_nvl(spa, nvl);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_free(nvl);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens return (err);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens}
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensint
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_log_nvl(spa_t *spa, nvlist_t *nvl)
06eeb2ad640ce72d394ac521094bed7681044408ek{
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens int err = 0;
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens dmu_tx_t *tx;
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvlist_t *nvarg;
06eeb2ad640ce72d394ac521094bed7681044408ek
cd1c8b85eb30b568e9816221430c479ace7a559dMatthew Ahrens if (spa_version(spa) < SPA_VERSION_ZPOOL_HISTORY || !spa_writeable(spa))
be6fd75a69ae679453d9cda5bff3326111e6d1caMatthew Ahrens return (SET_ERROR(EINVAL));
e7437265dc2a4920c197ed4337665539d358b22cahrens
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens err = dmu_tx_assign(tx, TXG_WAIT);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens if (err) {
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens dmu_tx_abort(tx);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens return (err);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens }
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvarg = fnvlist_dup(nvl);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens if (spa_history_zone() != NULL) {
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvarg, ZPOOL_HIST_ZONE,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens spa_history_zone());
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens }
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_uint64(nvarg, ZPOOL_HIST_WHO, crgetruid(CRED()));
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens /* Kick this off asynchronously; errors are ignored. */
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dsl_sync_task_nowait(spa_get_dsl(spa), spa_history_log_sync,
7d46dc6ca63a6f3f0d51aa655bfcf10cf2405a9eMatthew Ahrens nvarg, 0, ZFS_SPACE_CHECK_NONE, tx);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens dmu_tx_commit(tx);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens /* spa_history_log_sync will free nvl */
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens return (err);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
06eeb2ad640ce72d394ac521094bed7681044408ek}
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek/*
06eeb2ad640ce72d394ac521094bed7681044408ek * Read out the command history.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ekint
06eeb2ad640ce72d394ac521094bed7681044408ekspa_history_get(spa_t *spa, uint64_t *offp, uint64_t *len, char *buf)
06eeb2ad640ce72d394ac521094bed7681044408ek{
06eeb2ad640ce72d394ac521094bed7681044408ek objset_t *mos = spa->spa_meta_objset;
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_t *dbp;
06eeb2ad640ce72d394ac521094bed7681044408ek uint64_t read_len, phys_read_off, phys_eof;
06eeb2ad640ce72d394ac521094bed7681044408ek uint64_t leftover = 0;
06eeb2ad640ce72d394ac521094bed7681044408ek spa_history_phys_t *shpp;
06eeb2ad640ce72d394ac521094bed7681044408ek int err;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /*
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens * If the command history doesn't exist (older pool),
06eeb2ad640ce72d394ac521094bed7681044408ek * that's ok, just return ENOENT.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek if (!spa->spa_history)
be6fd75a69ae679453d9cda5bff3326111e6d1caMatthew Ahrens return (SET_ERROR(ENOENT));
06eeb2ad640ce72d394ac521094bed7681044408ek
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens /*
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens * The history is logged asynchronously, so when they request
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens * the first chunk of history, make sure everything has been
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens * synced to disk so that we get it.
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens */
3c7085183f0ef423f05f8771514e371bce010539Mark J Musante if (*offp == 0 && spa_writeable(spa))
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens txg_wait_synced(spa_get_dsl(spa), 0);
495807d7dceb9c0357efb5f483dbf9f951dfeec6Matthew Ahrens
06eeb2ad640ce72d394ac521094bed7681044408ek if ((err = dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)) != 0)
06eeb2ad640ce72d394ac521094bed7681044408ek return (err);
06eeb2ad640ce72d394ac521094bed7681044408ek shpp = dbp->db_data;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek#ifdef ZFS_DEBUG
06eeb2ad640ce72d394ac521094bed7681044408ek {
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_object_info_t doi;
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_object_info_from_db(dbp, &doi);
06eeb2ad640ce72d394ac521094bed7681044408ek ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek#endif
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_enter(&spa->spa_history_lock);
06eeb2ad640ce72d394ac521094bed7681044408ek phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek if (*offp < shpp->sh_pool_create_len) {
06eeb2ad640ce72d394ac521094bed7681044408ek /* read in just the zpool create history */
06eeb2ad640ce72d394ac521094bed7681044408ek phys_read_off = *offp;
06eeb2ad640ce72d394ac521094bed7681044408ek read_len = MIN(*len, shpp->sh_pool_create_len -
06eeb2ad640ce72d394ac521094bed7681044408ek phys_read_off);
06eeb2ad640ce72d394ac521094bed7681044408ek } else {
06eeb2ad640ce72d394ac521094bed7681044408ek /*
06eeb2ad640ce72d394ac521094bed7681044408ek * Need to reset passed in offset to BOF if the passed in
06eeb2ad640ce72d394ac521094bed7681044408ek * offset has since been overwritten.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek *offp = MAX(*offp, shpp->sh_bof);
06eeb2ad640ce72d394ac521094bed7681044408ek phys_read_off = spa_history_log_to_phys(*offp, shpp);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /*
06eeb2ad640ce72d394ac521094bed7681044408ek * Read up to the minimum of what the user passed down or
06eeb2ad640ce72d394ac521094bed7681044408ek * the EOF (physical or logical). If we hit physical EOF,
06eeb2ad640ce72d394ac521094bed7681044408ek * use 'leftover' to read from the physical BOF.
06eeb2ad640ce72d394ac521094bed7681044408ek */
06eeb2ad640ce72d394ac521094bed7681044408ek if (phys_read_off <= phys_eof) {
06eeb2ad640ce72d394ac521094bed7681044408ek read_len = MIN(*len, phys_eof - phys_read_off);
06eeb2ad640ce72d394ac521094bed7681044408ek } else {
06eeb2ad640ce72d394ac521094bed7681044408ek read_len = MIN(*len,
06eeb2ad640ce72d394ac521094bed7681044408ek shpp->sh_phys_max_off - phys_read_off);
06eeb2ad640ce72d394ac521094bed7681044408ek if (phys_read_off + *len > shpp->sh_phys_max_off) {
06eeb2ad640ce72d394ac521094bed7681044408ek leftover = MIN(*len - read_len,
06eeb2ad640ce72d394ac521094bed7681044408ek phys_eof - shpp->sh_pool_create_len);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /* offset for consumer to use next */
06eeb2ad640ce72d394ac521094bed7681044408ek *offp += read_len + leftover;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek /* tell the consumer how much you actually read */
06eeb2ad640ce72d394ac521094bed7681044408ek *len = read_len + leftover;
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek if (read_len == 0) {
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_exit(&spa->spa_history_lock);
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_rele(dbp, FTAG);
06eeb2ad640ce72d394ac521094bed7681044408ek return (0);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek
7bfdf011e081684f853a3242d0296695110d9d84Neil Perrin err = dmu_read(mos, spa->spa_history, phys_read_off, read_len, buf,
7bfdf011e081684f853a3242d0296695110d9d84Neil Perrin DMU_READ_PREFETCH);
06eeb2ad640ce72d394ac521094bed7681044408ek if (leftover && err == 0) {
06eeb2ad640ce72d394ac521094bed7681044408ek err = dmu_read(mos, spa->spa_history, shpp->sh_pool_create_len,
7bfdf011e081684f853a3242d0296695110d9d84Neil Perrin leftover, buf + read_len, DMU_READ_PREFETCH);
06eeb2ad640ce72d394ac521094bed7681044408ek }
06eeb2ad640ce72d394ac521094bed7681044408ek mutex_exit(&spa->spa_history_lock);
06eeb2ad640ce72d394ac521094bed7681044408ek
06eeb2ad640ce72d394ac521094bed7681044408ek dmu_buf_rele(dbp, FTAG);
06eeb2ad640ce72d394ac521094bed7681044408ek return (err);
06eeb2ad640ce72d394ac521094bed7681044408ek}
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens/*
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens * The nvlist will be consumed by this call.
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens */
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musantestatic void
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrenslog_internal(nvlist_t *nvl, const char *operation, spa_t *spa,
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling dmu_tx_t *tx, const char *fmt, va_list adx)
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks{
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens char *msg;
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
088f389458728c464569a5506b58070254fa4f7dahrens /*
088f389458728c464569a5506b58070254fa4f7dahrens * If this is part of creating a pool, not everything is
088f389458728c464569a5506b58070254fa4f7dahrens * initialized yet, so don't bother logging the internal events.
cd1c8b85eb30b568e9816221430c479ace7a559dMatthew Ahrens * Likewise if the pool is not writeable.
088f389458728c464569a5506b58070254fa4f7dahrens */
cd1c8b85eb30b568e9816221430c479ace7a559dMatthew Ahrens if (tx->tx_txg == TXG_INITIAL || !spa_writeable(spa)) {
347eec8e8d911407001c48ea3fad34d03bcfb742Christopher Siden fnvlist_free(nvl);
088f389458728c464569a5506b58070254fa4f7dahrens return;
347eec8e8d911407001c48ea3fad34d03bcfb742Christopher Siden }
088f389458728c464569a5506b58070254fa4f7dahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens msg = kmem_alloc(vsnprintf(NULL, 0, fmt, adx) + 1, KM_SLEEP);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens (void) vsprintf(msg, fmt, adx);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvl, ZPOOL_HIST_INT_STR, msg);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens strfree(msg);
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvl, ZPOOL_HIST_INT_NAME, operation);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_uint64(nvl, ZPOOL_HIST_TXG, tx->tx_txg);
e7437265dc2a4920c197ed4337665539d358b22cahrens
e7437265dc2a4920c197ed4337665539d358b22cahrens if (dmu_tx_is_syncing(tx)) {
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens spa_history_log_sync(nvl, tx);
e7437265dc2a4920c197ed4337665539d358b22cahrens } else {
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens dsl_sync_task_nowait(spa_get_dsl(spa),
7d46dc6ca63a6f3f0d51aa655bfcf10cf2405a9eMatthew Ahrens spa_history_log_sync, nvl, 0, ZFS_SPACE_CHECK_NONE, tx);
e7437265dc2a4920c197ed4337665539d358b22cahrens }
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens /* spa_history_log_sync() will free nvl */
ecd6cf800b63704be73fb264c3f5b6e0dafc068dmarks}
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musantevoid
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_log_internal(spa_t *spa, const char *operation,
3f9d6ad73e45c6823b409f93b0c8d4f62861d2d5Lin Ling dmu_tx_t *tx, const char *fmt, ...)
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante{
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante dmu_tx_t *htx = tx;
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante va_list adx;
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante /* create a tx if we didn't get one */
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante if (tx == NULL) {
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante htx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir);
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante if (dmu_tx_assign(htx, TXG_WAIT) != 0) {
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante dmu_tx_abort(htx);
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante return;
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante }
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante }
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante va_start(adx, fmt);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens log_internal(fnvlist_alloc(), operation, spa, htx, fmt, adx);
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante va_end(adx);
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante /* if we didn't get a tx from the caller, commit the one we made */
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante if (tx == NULL)
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante dmu_tx_commit(htx);
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante}
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musantevoid
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_log_internal_ds(dsl_dataset_t *ds, const char *operation,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dmu_tx_t *tx, const char *fmt, ...)
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens{
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens va_list adx;
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrens char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvlist_t *nvl = fnvlist_alloc();
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens ASSERT(tx != NULL);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dsl_dataset_name(ds, namebuf);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvl, ZPOOL_HIST_DSNAME, namebuf);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_uint64(nvl, ZPOOL_HIST_DSID, ds->ds_object);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens va_start(adx, fmt);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens log_internal(nvl, operation, dsl_dataset_get_spa(ds), tx, fmt, adx);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens va_end(adx);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens}
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensvoid
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_log_internal_dd(dsl_dir_t *dd, const char *operation,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dmu_tx_t *tx, const char *fmt, ...)
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens{
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens va_list adx;
9adfa60d484ce2435f5af77cc99dcd4e692b6660Matthew Ahrens char namebuf[ZFS_MAX_DATASET_NAME_LEN];
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens nvlist_t *nvl = fnvlist_alloc();
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens ASSERT(tx != NULL);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens dsl_dir_name(dd, namebuf);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_string(nvl, ZPOOL_HIST_DSNAME, namebuf);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens fnvlist_add_uint64(nvl, ZPOOL_HIST_DSID,
c1379625401dfbe1c39b79136dd384a571d47fdeJustin T. Gibbs dsl_dir_phys(dd)->dd_head_dataset_obj);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens va_start(adx, fmt);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens log_internal(nvl, operation, dd->dd_pool->dp_spa, tx, fmt, adx);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens va_end(adx);
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens}
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensvoid
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrensspa_history_log_version(spa_t *spa, const char *operation)
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante{
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens spa_history_log_internal(spa, operation, NULL,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens "pool version %llu; software version %llu/%d; uts %s %s %s %s",
3b2aab18808792cbd248a12f1edf139b89833c13Matthew Ahrens (u_longlong_t)spa_version(spa), SPA_VERSION, ZPL_VERSION,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens utsname.nodename, utsname.release, utsname.version,
4445fffbbb1ea25fd0e9ea68b9380dd7a6709025Matthew Ahrens utsname.machine);
c8e1f6d2e1adb3a8cc413859aaa8c61813665ac6Mark J Musante}