1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 229d3574bfSNeil Perrin * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_DSL_POOL_H 27fa9e4066Sahrens #define _SYS_DSL_POOL_H 28fa9e4066Sahrens 29fa9e4066Sahrens #include <sys/spa.h> 30fa9e4066Sahrens #include <sys/txg.h> 31fa9e4066Sahrens #include <sys/txg_impl.h> 32fa9e4066Sahrens #include <sys/zfs_context.h> 33088f3894Sahrens #include <sys/zio.h> 3488b7b0f2SMatthew Ahrens #include <sys/dnode.h> 35fa9e4066Sahrens 36fa9e4066Sahrens #ifdef __cplusplus 37fa9e4066Sahrens extern "C" { 38fa9e4066Sahrens #endif 39fa9e4066Sahrens 40fa9e4066Sahrens struct objset; 41fa9e4066Sahrens struct dsl_dir; 42088f3894Sahrens struct dsl_dataset; 43088f3894Sahrens struct dsl_pool; 44088f3894Sahrens struct dmu_tx; 45088f3894Sahrens 46088f3894Sahrens enum scrub_func { 47088f3894Sahrens SCRUB_FUNC_NONE, 48088f3894Sahrens SCRUB_FUNC_CLEAN, 49088f3894Sahrens SCRUB_FUNC_NUMFUNCS 50088f3894Sahrens }; 51088f3894Sahrens 5288b7b0f2SMatthew Ahrens /* These macros are for indexing into the zfs_all_blkstats_t. */ 5388b7b0f2SMatthew Ahrens #define DMU_OT_DEFERRED DMU_OT_NONE 5488b7b0f2SMatthew Ahrens #define DMU_OT_TOTAL DMU_OT_NUMTYPES 5588b7b0f2SMatthew Ahrens 5688b7b0f2SMatthew Ahrens typedef struct zfs_blkstat { 5788b7b0f2SMatthew Ahrens uint64_t zb_count; 5888b7b0f2SMatthew Ahrens uint64_t zb_asize; 5988b7b0f2SMatthew Ahrens uint64_t zb_lsize; 6088b7b0f2SMatthew Ahrens uint64_t zb_psize; 6188b7b0f2SMatthew Ahrens uint64_t zb_gangs; 6288b7b0f2SMatthew Ahrens uint64_t zb_ditto_2_of_2_samevdev; 6388b7b0f2SMatthew Ahrens uint64_t zb_ditto_2_of_3_samevdev; 6488b7b0f2SMatthew Ahrens uint64_t zb_ditto_3_of_3_samevdev; 6588b7b0f2SMatthew Ahrens } zfs_blkstat_t; 6688b7b0f2SMatthew Ahrens 6788b7b0f2SMatthew Ahrens typedef struct zfs_all_blkstats { 6888b7b0f2SMatthew Ahrens zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1]; 6988b7b0f2SMatthew Ahrens } zfs_all_blkstats_t; 7088b7b0f2SMatthew Ahrens 71fa9e4066Sahrens 72fa9e4066Sahrens typedef struct dsl_pool { 73fa9e4066Sahrens /* Immutable */ 74fa9e4066Sahrens spa_t *dp_spa; 75fa9e4066Sahrens struct objset *dp_meta_objset; 76fa9e4066Sahrens struct dsl_dir *dp_root_dir; 77fa9e4066Sahrens struct dsl_dir *dp_mos_dir; 78088f3894Sahrens struct dsl_dataset *dp_origin_snap; 79fa9e4066Sahrens uint64_t dp_root_dir_obj; 809d3574bfSNeil Perrin struct taskq *dp_vnrele_taskq; 81fa9e4066Sahrens 82fa9e4066Sahrens /* No lock needed - sync context only */ 83fa9e4066Sahrens blkptr_t dp_meta_rootbp; 843cb34c60Sahrens list_t dp_synced_datasets; 8505715f94SMark Maybee hrtime_t dp_read_overhead; 8605715f94SMark Maybee uint64_t dp_throughput; 871ab7f2deSmaybee uint64_t dp_write_limit; 88ca45db41SChris Kirby uint64_t dp_tmp_userrefs_obj; 891ab7f2deSmaybee 901ab7f2deSmaybee /* Uses dp_lock */ 911ab7f2deSmaybee kmutex_t dp_lock; 921ab7f2deSmaybee uint64_t dp_space_towrite[TXG_SIZE]; 931ab7f2deSmaybee uint64_t dp_tempreserved[TXG_SIZE]; 94fa9e4066Sahrens 95088f3894Sahrens enum scrub_func dp_scrub_func; 96088f3894Sahrens uint64_t dp_scrub_queue_obj; 97088f3894Sahrens uint64_t dp_scrub_min_txg; 98088f3894Sahrens uint64_t dp_scrub_max_txg; 99088f3894Sahrens zbookmark_t dp_scrub_bookmark; 100088f3894Sahrens boolean_t dp_scrub_pausing; 101088f3894Sahrens boolean_t dp_scrub_isresilver; 102088f3894Sahrens uint64_t dp_scrub_start_time; 103088f3894Sahrens kmutex_t dp_scrub_cancel_lock; /* protects dp_scrub_restart */ 104088f3894Sahrens boolean_t dp_scrub_restart; 105*b24ab676SJeff Bonwick boolean_t dp_scrub_ditto; 106088f3894Sahrens 107fa9e4066Sahrens /* Has its own locking */ 108fa9e4066Sahrens tx_state_t dp_tx; 109fa9e4066Sahrens txg_list_t dp_dirty_datasets; 110fa9e4066Sahrens txg_list_t dp_dirty_dirs; 1111d452cf5Sahrens txg_list_t dp_sync_tasks; 112fa9e4066Sahrens 113fa9e4066Sahrens /* 114fa9e4066Sahrens * Protects administrative changes (properties, namespace) 115fa9e4066Sahrens * It is only held for write in syncing context. Therefore 116fa9e4066Sahrens * syncing context does not need to ever have it for read, since 117fa9e4066Sahrens * nobody else could possibly have it for write. 118fa9e4066Sahrens */ 119fa9e4066Sahrens krwlock_t dp_config_rwlock; 12088b7b0f2SMatthew Ahrens 12188b7b0f2SMatthew Ahrens zfs_all_blkstats_t *dp_blkstats; 122fa9e4066Sahrens } dsl_pool_t; 123fa9e4066Sahrens 124ea8dc4b6Seschrock int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp); 125fa9e4066Sahrens void dsl_pool_close(dsl_pool_t *dp); 1260a48a24eStimh dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg); 127fa9e4066Sahrens void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg); 128*b24ab676SJeff Bonwick void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg); 129fa9e4066Sahrens int dsl_pool_sync_context(dsl_pool_t *dp); 130fa9e4066Sahrens uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree); 131468c413aSTim Haley uint64_t dsl_pool_adjustedfree(dsl_pool_t *dp, boolean_t netfree); 1321ab7f2deSmaybee int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx); 1331ab7f2deSmaybee void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); 1341ab7f2deSmaybee void dsl_pool_memory_pressure(dsl_pool_t *dp); 1351ab7f2deSmaybee void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); 136*b24ab676SJeff Bonwick void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp); 137088f3894Sahrens void dsl_pool_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); 138088f3894Sahrens void dsl_pool_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); 13988b7b0f2SMatthew Ahrens void dsl_pool_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, 14088b7b0f2SMatthew Ahrens struct dmu_tx *tx); 141088f3894Sahrens void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx); 142088f3894Sahrens void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx); 143088f3894Sahrens 144088f3894Sahrens int dsl_pool_scrub_cancel(dsl_pool_t *dp); 145088f3894Sahrens int dsl_pool_scrub_clean(dsl_pool_t *dp); 146088f3894Sahrens void dsl_pool_scrub_sync(dsl_pool_t *dp, dmu_tx_t *tx); 147088f3894Sahrens void dsl_pool_scrub_restart(dsl_pool_t *dp); 148fa9e4066Sahrens 1499d3574bfSNeil Perrin taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp); 1509d3574bfSNeil Perrin 151ca45db41SChris Kirby extern int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj, 152ca45db41SChris Kirby const char *tag, time_t *t, dmu_tx_t *tx); 153ca45db41SChris Kirby extern int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj, 154ca45db41SChris Kirby const char *tag, dmu_tx_t *tx); 155ca45db41SChris Kirby extern void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp); 156ca45db41SChris Kirby 157fa9e4066Sahrens #ifdef __cplusplus 158fa9e4066Sahrens } 159fa9e4066Sahrens #endif 160fa9e4066Sahrens 161fa9e4066Sahrens #endif /* _SYS_DSL_POOL_H */ 162