106eeb2adSek /* 206eeb2adSek * CDDL HEADER START 306eeb2adSek * 406eeb2adSek * The contents of this file are subject to the terms of the 506eeb2adSek * Common Development and Distribution License (the "License"). 606eeb2adSek * You may not use this file except in compliance with the License. 706eeb2adSek * 806eeb2adSek * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 906eeb2adSek * or http://www.opensolaris.org/os/licensing. 1006eeb2adSek * See the License for the specific language governing permissions 1106eeb2adSek * and limitations under the License. 1206eeb2adSek * 1306eeb2adSek * When distributing Covered Code, include this CDDL HEADER in each 1406eeb2adSek * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 1506eeb2adSek * If applicable, add the following below this CDDL HEADER, with the 1606eeb2adSek * fields enclosed by brackets "[]" replaced with your own identifying 1706eeb2adSek * information: Portions Copyright [yyyy] [name of copyright owner] 1806eeb2adSek * 1906eeb2adSek * CDDL HEADER END 2006eeb2adSek */ 2106eeb2adSek 2206eeb2adSek /* 237bfdf011SNeil Perrin * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 2406eeb2adSek * Use is subject to license terms. 2506eeb2adSek */ 2606eeb2adSek 27ecd6cf80Smarks #include <sys/spa.h> 2806eeb2adSek #include <sys/spa_impl.h> 2906eeb2adSek #include <sys/zap.h> 3006eeb2adSek #include <sys/dsl_synctask.h> 31ecd6cf80Smarks #include <sys/dmu_tx.h> 32ecd6cf80Smarks #include <sys/dmu_objset.h> 33ecd6cf80Smarks #include <sys/utsname.h> 34ecd6cf80Smarks #include <sys/cmn_err.h> 35ecd6cf80Smarks #include <sys/sunddi.h> 36ecd6cf80Smarks #ifdef _KERNEL 37ecd6cf80Smarks #include <sys/zone.h> 38ecd6cf80Smarks #endif 3906eeb2adSek 4006eeb2adSek /* 4106eeb2adSek * Routines to manage the on-disk history log. 4206eeb2adSek * 4306eeb2adSek * The history log is stored as a dmu object containing 4406eeb2adSek * <packed record length, record nvlist> tuples. 4506eeb2adSek * 4606eeb2adSek * Where "record nvlist" is a nvlist containing uint64_ts and strings, and 4706eeb2adSek * "packed record length" is the packed length of the "record nvlist" stored 4806eeb2adSek * as a little endian uint64_t. 4906eeb2adSek * 5006eeb2adSek * The log is implemented as a ring buffer, though the original creation 5106eeb2adSek * of the pool ('zpool create') is never overwritten. 5206eeb2adSek * 5306eeb2adSek * The history log is tracked as object 'spa_t::spa_history'. The bonus buffer 5406eeb2adSek * of 'spa_history' stores the offsets for logging/retrieving history as 5506eeb2adSek * 'spa_history_phys_t'. 'sh_pool_create_len' is the ending offset in bytes of 5606eeb2adSek * where the 'zpool create' record is stored. This allows us to never 5706eeb2adSek * overwrite the original creation of the pool. 'sh_phys_max_off' is the 5806eeb2adSek * physical ending offset in bytes of the log. This tells you the length of 5906eeb2adSek * the buffer. 'sh_eof' is the logical EOF (in bytes). Whenever a record 6006eeb2adSek * is added, 'sh_eof' is incremented by the the size of the record. 6106eeb2adSek * 'sh_eof' is never decremented. 'sh_bof' is the logical BOF (in bytes). 6206eeb2adSek * This is where the consumer should start reading from after reading in 6306eeb2adSek * the 'zpool create' portion of the log. 6406eeb2adSek * 6506eeb2adSek * 'sh_records_lost' keeps track of how many records have been overwritten 6606eeb2adSek * and permanently lost. 6706eeb2adSek */ 6806eeb2adSek 6906eeb2adSek /* convert a logical offset to physical */ 7006eeb2adSek static uint64_t 7106eeb2adSek spa_history_log_to_phys(uint64_t log_off, spa_history_phys_t *shpp) 7206eeb2adSek { 7306eeb2adSek uint64_t phys_len; 7406eeb2adSek 7506eeb2adSek phys_len = shpp->sh_phys_max_off - shpp->sh_pool_create_len; 7606eeb2adSek return ((log_off - shpp->sh_pool_create_len) % phys_len 7706eeb2adSek + shpp->sh_pool_create_len); 7806eeb2adSek } 7906eeb2adSek 8006eeb2adSek void 8106eeb2adSek spa_history_create_obj(spa_t *spa, dmu_tx_t *tx) 8206eeb2adSek { 8306eeb2adSek dmu_buf_t *dbp; 8406eeb2adSek spa_history_phys_t *shpp; 8506eeb2adSek objset_t *mos = spa->spa_meta_objset; 8606eeb2adSek 8706eeb2adSek ASSERT(spa->spa_history == 0); 8806eeb2adSek spa->spa_history = dmu_object_alloc(mos, DMU_OT_SPA_HISTORY, 8906eeb2adSek SPA_MAXBLOCKSIZE, DMU_OT_SPA_HISTORY_OFFSETS, 9006eeb2adSek sizeof (spa_history_phys_t), tx); 9106eeb2adSek 9206eeb2adSek VERIFY(zap_add(mos, DMU_POOL_DIRECTORY_OBJECT, 9306eeb2adSek DMU_POOL_HISTORY, sizeof (uint64_t), 1, 9406eeb2adSek &spa->spa_history, tx) == 0); 9506eeb2adSek 9606eeb2adSek VERIFY(0 == dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)); 9706eeb2adSek ASSERT(dbp->db_size >= sizeof (spa_history_phys_t)); 9806eeb2adSek 9906eeb2adSek shpp = dbp->db_data; 10006eeb2adSek dmu_buf_will_dirty(dbp, tx); 10106eeb2adSek 10206eeb2adSek /* 10306eeb2adSek * Figure out maximum size of history log. We set it at 10406eeb2adSek * 1% of pool size, with a max of 32MB and min of 128KB. 10506eeb2adSek */ 106*b24ab676SJeff Bonwick shpp->sh_phys_max_off = 107*b24ab676SJeff Bonwick metaslab_class_get_dspace(spa_normal_class(spa)) / 100; 10806eeb2adSek shpp->sh_phys_max_off = MIN(shpp->sh_phys_max_off, 32<<20); 10906eeb2adSek shpp->sh_phys_max_off = MAX(shpp->sh_phys_max_off, 128<<10); 11006eeb2adSek 11106eeb2adSek dmu_buf_rele(dbp, FTAG); 11206eeb2adSek } 11306eeb2adSek 11406eeb2adSek /* 11506eeb2adSek * Change 'sh_bof' to the beginning of the next record. 11606eeb2adSek */ 11706eeb2adSek static int 11806eeb2adSek spa_history_advance_bof(spa_t *spa, spa_history_phys_t *shpp) 11906eeb2adSek { 12006eeb2adSek objset_t *mos = spa->spa_meta_objset; 12106eeb2adSek uint64_t firstread, reclen, phys_bof; 12206eeb2adSek char buf[sizeof (reclen)]; 12306eeb2adSek int err; 12406eeb2adSek 12506eeb2adSek phys_bof = spa_history_log_to_phys(shpp->sh_bof, shpp); 12606eeb2adSek firstread = MIN(sizeof (reclen), shpp->sh_phys_max_off - phys_bof); 12706eeb2adSek 12806eeb2adSek if ((err = dmu_read(mos, spa->spa_history, phys_bof, firstread, 1297bfdf011SNeil Perrin buf, DMU_READ_PREFETCH)) != 0) 13006eeb2adSek return (err); 13106eeb2adSek if (firstread != sizeof (reclen)) { 13206eeb2adSek if ((err = dmu_read(mos, spa->spa_history, 13306eeb2adSek shpp->sh_pool_create_len, sizeof (reclen) - firstread, 1347bfdf011SNeil Perrin buf + firstread, DMU_READ_PREFETCH)) != 0) 13506eeb2adSek return (err); 13606eeb2adSek } 13706eeb2adSek 13806eeb2adSek reclen = LE_64(*((uint64_t *)buf)); 13906eeb2adSek shpp->sh_bof += reclen + sizeof (reclen); 14006eeb2adSek shpp->sh_records_lost++; 14106eeb2adSek return (0); 14206eeb2adSek } 14306eeb2adSek 14406eeb2adSek static int 14506eeb2adSek spa_history_write(spa_t *spa, void *buf, uint64_t len, spa_history_phys_t *shpp, 14606eeb2adSek dmu_tx_t *tx) 14706eeb2adSek { 14806eeb2adSek uint64_t firstwrite, phys_eof; 14906eeb2adSek objset_t *mos = spa->spa_meta_objset; 15006eeb2adSek int err; 15106eeb2adSek 15206eeb2adSek ASSERT(MUTEX_HELD(&spa->spa_history_lock)); 15306eeb2adSek 15406eeb2adSek /* see if we need to reset logical BOF */ 15506eeb2adSek while (shpp->sh_phys_max_off - shpp->sh_pool_create_len - 15606eeb2adSek (shpp->sh_eof - shpp->sh_bof) <= len) { 157ecd6cf80Smarks if ((err = spa_history_advance_bof(spa, shpp)) != 0) { 15806eeb2adSek return (err); 159ecd6cf80Smarks } 16006eeb2adSek } 16106eeb2adSek 16206eeb2adSek phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp); 16306eeb2adSek firstwrite = MIN(len, shpp->sh_phys_max_off - phys_eof); 16406eeb2adSek shpp->sh_eof += len; 16506eeb2adSek dmu_write(mos, spa->spa_history, phys_eof, firstwrite, buf, tx); 16606eeb2adSek 16706eeb2adSek len -= firstwrite; 16806eeb2adSek if (len > 0) { 16906eeb2adSek /* write out the rest at the beginning of physical file */ 17006eeb2adSek dmu_write(mos, spa->spa_history, shpp->sh_pool_create_len, 17106eeb2adSek len, (char *)buf + firstwrite, tx); 17206eeb2adSek } 17306eeb2adSek 17406eeb2adSek return (0); 17506eeb2adSek } 17606eeb2adSek 177ecd6cf80Smarks static char * 178ecd6cf80Smarks spa_history_zone() 179ecd6cf80Smarks { 180ecd6cf80Smarks #ifdef _KERNEL 181ecd6cf80Smarks return (curproc->p_zone->zone_name); 182ecd6cf80Smarks #else 183ecd6cf80Smarks return ("global"); 184ecd6cf80Smarks #endif 185ecd6cf80Smarks } 186ecd6cf80Smarks 18706eeb2adSek /* 18806eeb2adSek * Write out a history event. 18906eeb2adSek */ 190e7437265Sahrens static void 191ecd6cf80Smarks spa_history_log_sync(void *arg1, void *arg2, cred_t *cr, dmu_tx_t *tx) 19206eeb2adSek { 19306eeb2adSek spa_t *spa = arg1; 19406eeb2adSek history_arg_t *hap = arg2; 19506eeb2adSek const char *history_str = hap->ha_history_str; 19606eeb2adSek objset_t *mos = spa->spa_meta_objset; 19706eeb2adSek dmu_buf_t *dbp; 19806eeb2adSek spa_history_phys_t *shpp; 19906eeb2adSek size_t reclen; 20006eeb2adSek uint64_t le_len; 20106eeb2adSek nvlist_t *nvrecord; 20206eeb2adSek char *record_packed = NULL; 20306eeb2adSek int ret; 20406eeb2adSek 20506eeb2adSek /* 20606eeb2adSek * If we have an older pool that doesn't have a command 20706eeb2adSek * history object, create it now. 20806eeb2adSek */ 20906eeb2adSek mutex_enter(&spa->spa_history_lock); 21006eeb2adSek if (!spa->spa_history) 21106eeb2adSek spa_history_create_obj(spa, tx); 21206eeb2adSek mutex_exit(&spa->spa_history_lock); 21306eeb2adSek 21406eeb2adSek /* 21506eeb2adSek * Get the offset of where we need to write via the bonus buffer. 21606eeb2adSek * Update the offset when the write completes. 21706eeb2adSek */ 21806eeb2adSek VERIFY(0 == dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)); 21906eeb2adSek shpp = dbp->db_data; 22006eeb2adSek 22106eeb2adSek dmu_buf_will_dirty(dbp, tx); 22206eeb2adSek 22306eeb2adSek #ifdef ZFS_DEBUG 22406eeb2adSek { 22506eeb2adSek dmu_object_info_t doi; 22606eeb2adSek dmu_object_info_from_db(dbp, &doi); 22706eeb2adSek ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS); 22806eeb2adSek } 22906eeb2adSek #endif 23006eeb2adSek 23106eeb2adSek VERIFY(nvlist_alloc(&nvrecord, NV_UNIQUE_NAME, KM_SLEEP) == 0); 23206eeb2adSek VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_TIME, 23306eeb2adSek gethrestime_sec()) == 0); 234ecd6cf80Smarks VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_WHO, 235ecd6cf80Smarks (uint64_t)crgetuid(cr)) == 0); 236ecd6cf80Smarks if (hap->ha_zone[0] != '\0') 237ecd6cf80Smarks VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_ZONE, 238ecd6cf80Smarks hap->ha_zone) == 0); 239ecd6cf80Smarks #ifdef _KERNEL 240ecd6cf80Smarks VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_HOST, 241ecd6cf80Smarks utsname.nodename) == 0); 242ecd6cf80Smarks #endif 243ecd6cf80Smarks if (hap->ha_log_type == LOG_CMD_POOL_CREATE || 244ecd6cf80Smarks hap->ha_log_type == LOG_CMD_NORMAL) { 245ecd6cf80Smarks VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_CMD, 246ecd6cf80Smarks history_str) == 0); 247ecd6cf80Smarks } else { 248ecd6cf80Smarks VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_INT_EVENT, 249ecd6cf80Smarks hap->ha_event) == 0); 250ecd6cf80Smarks VERIFY(nvlist_add_uint64(nvrecord, ZPOOL_HIST_TXG, 251ecd6cf80Smarks tx->tx_txg) == 0); 252ecd6cf80Smarks VERIFY(nvlist_add_string(nvrecord, ZPOOL_HIST_INT_STR, 253ecd6cf80Smarks history_str) == 0); 254ecd6cf80Smarks } 255ecd6cf80Smarks 256da165920Smarks VERIFY(nvlist_size(nvrecord, &reclen, NV_ENCODE_XDR) == 0); 257da165920Smarks record_packed = kmem_alloc(reclen, KM_SLEEP); 258da165920Smarks 25906eeb2adSek VERIFY(nvlist_pack(nvrecord, &record_packed, &reclen, 26006eeb2adSek NV_ENCODE_XDR, KM_SLEEP) == 0); 26106eeb2adSek 26206eeb2adSek mutex_enter(&spa->spa_history_lock); 263ecd6cf80Smarks if (hap->ha_log_type == LOG_CMD_POOL_CREATE) 26406eeb2adSek VERIFY(shpp->sh_eof == shpp->sh_pool_create_len); 26506eeb2adSek 26606eeb2adSek /* write out the packed length as little endian */ 26755434c77Sek le_len = LE_64((uint64_t)reclen); 26806eeb2adSek ret = spa_history_write(spa, &le_len, sizeof (le_len), shpp, tx); 26906eeb2adSek if (!ret) 27006eeb2adSek ret = spa_history_write(spa, record_packed, reclen, shpp, tx); 27106eeb2adSek 272ecd6cf80Smarks if (!ret && hap->ha_log_type == LOG_CMD_POOL_CREATE) { 27306eeb2adSek shpp->sh_pool_create_len += sizeof (le_len) + reclen; 27406eeb2adSek shpp->sh_bof = shpp->sh_pool_create_len; 27506eeb2adSek } 27606eeb2adSek 27706eeb2adSek mutex_exit(&spa->spa_history_lock); 27806eeb2adSek nvlist_free(nvrecord); 27906eeb2adSek kmem_free(record_packed, reclen); 28006eeb2adSek dmu_buf_rele(dbp, FTAG); 281e7437265Sahrens 282e7437265Sahrens if (hap->ha_log_type == LOG_INTERNAL) { 283e7437265Sahrens kmem_free((void*)hap->ha_history_str, HIS_MAX_RECORD_LEN); 284e7437265Sahrens kmem_free(hap, sizeof (history_arg_t)); 285e7437265Sahrens } 28606eeb2adSek } 28706eeb2adSek 28806eeb2adSek /* 28906eeb2adSek * Write out a history event. 29006eeb2adSek */ 29106eeb2adSek int 292ecd6cf80Smarks spa_history_log(spa_t *spa, const char *history_str, history_log_type_t what) 29306eeb2adSek { 29406eeb2adSek history_arg_t ha; 29506eeb2adSek 296e7437265Sahrens ASSERT(what != LOG_INTERNAL); 297e7437265Sahrens 29806eeb2adSek ha.ha_history_str = history_str; 299ecd6cf80Smarks ha.ha_log_type = what; 300ecd6cf80Smarks (void) strlcpy(ha.ha_zone, spa_history_zone(), sizeof (ha.ha_zone)); 30106eeb2adSek return (dsl_sync_task_do(spa_get_dsl(spa), NULL, spa_history_log_sync, 30206eeb2adSek spa, &ha, 0)); 30306eeb2adSek } 30406eeb2adSek 30506eeb2adSek /* 30606eeb2adSek * Read out the command history. 30706eeb2adSek */ 30806eeb2adSek int 30906eeb2adSek spa_history_get(spa_t *spa, uint64_t *offp, uint64_t *len, char *buf) 31006eeb2adSek { 31106eeb2adSek objset_t *mos = spa->spa_meta_objset; 31206eeb2adSek dmu_buf_t *dbp; 31306eeb2adSek uint64_t read_len, phys_read_off, phys_eof; 31406eeb2adSek uint64_t leftover = 0; 31506eeb2adSek spa_history_phys_t *shpp; 31606eeb2adSek int err; 31706eeb2adSek 31806eeb2adSek /* 31906eeb2adSek * If the command history doesn't exist (older pool), 32006eeb2adSek * that's ok, just return ENOENT. 32106eeb2adSek */ 32206eeb2adSek if (!spa->spa_history) 32306eeb2adSek return (ENOENT); 32406eeb2adSek 32506eeb2adSek if ((err = dmu_bonus_hold(mos, spa->spa_history, FTAG, &dbp)) != 0) 32606eeb2adSek return (err); 32706eeb2adSek shpp = dbp->db_data; 32806eeb2adSek 32906eeb2adSek #ifdef ZFS_DEBUG 33006eeb2adSek { 33106eeb2adSek dmu_object_info_t doi; 33206eeb2adSek dmu_object_info_from_db(dbp, &doi); 33306eeb2adSek ASSERT3U(doi.doi_bonus_type, ==, DMU_OT_SPA_HISTORY_OFFSETS); 33406eeb2adSek } 33506eeb2adSek #endif 33606eeb2adSek 33706eeb2adSek mutex_enter(&spa->spa_history_lock); 33806eeb2adSek phys_eof = spa_history_log_to_phys(shpp->sh_eof, shpp); 33906eeb2adSek 34006eeb2adSek if (*offp < shpp->sh_pool_create_len) { 34106eeb2adSek /* read in just the zpool create history */ 34206eeb2adSek phys_read_off = *offp; 34306eeb2adSek read_len = MIN(*len, shpp->sh_pool_create_len - 34406eeb2adSek phys_read_off); 34506eeb2adSek } else { 34606eeb2adSek /* 34706eeb2adSek * Need to reset passed in offset to BOF if the passed in 34806eeb2adSek * offset has since been overwritten. 34906eeb2adSek */ 35006eeb2adSek *offp = MAX(*offp, shpp->sh_bof); 35106eeb2adSek phys_read_off = spa_history_log_to_phys(*offp, shpp); 35206eeb2adSek 35306eeb2adSek /* 35406eeb2adSek * Read up to the minimum of what the user passed down or 35506eeb2adSek * the EOF (physical or logical). If we hit physical EOF, 35606eeb2adSek * use 'leftover' to read from the physical BOF. 35706eeb2adSek */ 35806eeb2adSek if (phys_read_off <= phys_eof) { 35906eeb2adSek read_len = MIN(*len, phys_eof - phys_read_off); 36006eeb2adSek } else { 36106eeb2adSek read_len = MIN(*len, 36206eeb2adSek shpp->sh_phys_max_off - phys_read_off); 36306eeb2adSek if (phys_read_off + *len > shpp->sh_phys_max_off) { 36406eeb2adSek leftover = MIN(*len - read_len, 36506eeb2adSek phys_eof - shpp->sh_pool_create_len); 36606eeb2adSek } 36706eeb2adSek } 36806eeb2adSek } 36906eeb2adSek 37006eeb2adSek /* offset for consumer to use next */ 37106eeb2adSek *offp += read_len + leftover; 37206eeb2adSek 37306eeb2adSek /* tell the consumer how much you actually read */ 37406eeb2adSek *len = read_len + leftover; 37506eeb2adSek 37606eeb2adSek if (read_len == 0) { 37706eeb2adSek mutex_exit(&spa->spa_history_lock); 37806eeb2adSek dmu_buf_rele(dbp, FTAG); 37906eeb2adSek return (0); 38006eeb2adSek } 38106eeb2adSek 3827bfdf011SNeil Perrin err = dmu_read(mos, spa->spa_history, phys_read_off, read_len, buf, 3837bfdf011SNeil Perrin DMU_READ_PREFETCH); 38406eeb2adSek if (leftover && err == 0) { 38506eeb2adSek err = dmu_read(mos, spa->spa_history, shpp->sh_pool_create_len, 3867bfdf011SNeil Perrin leftover, buf + read_len, DMU_READ_PREFETCH); 38706eeb2adSek } 38806eeb2adSek mutex_exit(&spa->spa_history_lock); 38906eeb2adSek 39006eeb2adSek dmu_buf_rele(dbp, FTAG); 39106eeb2adSek return (err); 39206eeb2adSek } 393ecd6cf80Smarks 394c8e1f6d2SMark J Musante static void 395c8e1f6d2SMark J Musante log_internal(history_internal_events_t event, spa_t *spa, 396c8e1f6d2SMark J Musante dmu_tx_t *tx, cred_t *cr, const char *fmt, va_list adx) 397ecd6cf80Smarks { 398e7437265Sahrens history_arg_t *hap; 399ecd6cf80Smarks char *str; 400ecd6cf80Smarks 401088f3894Sahrens /* 402088f3894Sahrens * If this is part of creating a pool, not everything is 403088f3894Sahrens * initialized yet, so don't bother logging the internal events. 404088f3894Sahrens */ 405088f3894Sahrens if (tx->tx_txg == TXG_INITIAL) 406088f3894Sahrens return; 407088f3894Sahrens 408e7437265Sahrens hap = kmem_alloc(sizeof (history_arg_t), KM_SLEEP); 409ecd6cf80Smarks str = kmem_alloc(HIS_MAX_RECORD_LEN, KM_SLEEP); 410ecd6cf80Smarks 411ecd6cf80Smarks (void) vsnprintf(str, HIS_MAX_RECORD_LEN, fmt, adx); 412ecd6cf80Smarks 413e7437265Sahrens hap->ha_log_type = LOG_INTERNAL; 414e7437265Sahrens hap->ha_history_str = str; 415e7437265Sahrens hap->ha_event = event; 416e7437265Sahrens hap->ha_zone[0] = '\0'; 417e7437265Sahrens 418e7437265Sahrens if (dmu_tx_is_syncing(tx)) { 419e7437265Sahrens spa_history_log_sync(spa, hap, cr, tx); 420e7437265Sahrens } else { 421e7437265Sahrens dsl_sync_task_do_nowait(spa_get_dsl(spa), NULL, 422e7437265Sahrens spa_history_log_sync, spa, hap, 0, tx); 423e7437265Sahrens } 424e7437265Sahrens /* spa_history_log_sync() will free hap and str */ 425ecd6cf80Smarks } 426c8e1f6d2SMark J Musante 427c8e1f6d2SMark J Musante void 428c8e1f6d2SMark J Musante spa_history_internal_log(history_internal_events_t event, spa_t *spa, 429c8e1f6d2SMark J Musante dmu_tx_t *tx, cred_t *cr, const char *fmt, ...) 430c8e1f6d2SMark J Musante { 431c8e1f6d2SMark J Musante dmu_tx_t *htx = tx; 432c8e1f6d2SMark J Musante va_list adx; 433c8e1f6d2SMark J Musante 434c8e1f6d2SMark J Musante /* create a tx if we didn't get one */ 435c8e1f6d2SMark J Musante if (tx == NULL) { 436c8e1f6d2SMark J Musante htx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir); 437c8e1f6d2SMark J Musante if (dmu_tx_assign(htx, TXG_WAIT) != 0) { 438c8e1f6d2SMark J Musante dmu_tx_abort(htx); 439c8e1f6d2SMark J Musante return; 440c8e1f6d2SMark J Musante } 441c8e1f6d2SMark J Musante } 442c8e1f6d2SMark J Musante 443c8e1f6d2SMark J Musante va_start(adx, fmt); 444c8e1f6d2SMark J Musante log_internal(event, spa, htx, cr, fmt, adx); 445c8e1f6d2SMark J Musante va_end(adx); 446c8e1f6d2SMark J Musante 447c8e1f6d2SMark J Musante /* if we didn't get a tx from the caller, commit the one we made */ 448c8e1f6d2SMark J Musante if (tx == NULL) 449c8e1f6d2SMark J Musante dmu_tx_commit(htx); 450c8e1f6d2SMark J Musante } 451c8e1f6d2SMark J Musante 452c8e1f6d2SMark J Musante void 453c8e1f6d2SMark J Musante spa_history_log_version(spa_t *spa, history_internal_events_t event) 454c8e1f6d2SMark J Musante { 455c8e1f6d2SMark J Musante #ifdef _KERNEL 456c8e1f6d2SMark J Musante uint64_t current_vers = spa_version(spa); 457c8e1f6d2SMark J Musante 458c8e1f6d2SMark J Musante if (current_vers >= SPA_VERSION_ZPOOL_HISTORY) { 459c8e1f6d2SMark J Musante spa_history_internal_log(event, spa, NULL, CRED(), 460c8e1f6d2SMark J Musante "pool spa %llu; zfs spa %llu; zpl %d; uts %s %s %s %s", 461c8e1f6d2SMark J Musante (u_longlong_t)current_vers, SPA_VERSION, ZPL_VERSION, 462c8e1f6d2SMark J Musante utsname.nodename, utsname.release, utsname.version, 463c8e1f6d2SMark J Musante utsname.machine); 464c8e1f6d2SMark J Musante } 465c8e1f6d2SMark J Musante cmn_err(CE_CONT, "!%s version %llu pool %s using %llu", 466c8e1f6d2SMark J Musante event == LOG_POOL_IMPORT ? "imported" : 467c8e1f6d2SMark J Musante event == LOG_POOL_CREATE ? "created" : "accessed", 468c8e1f6d2SMark J Musante (u_longlong_t)current_vers, spa_name(spa), SPA_VERSION); 469c8e1f6d2SMark J Musante #endif 470c8e1f6d2SMark J Musante } 471