/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_DSL_POOL_H #define _SYS_DSL_POOL_H #include <sys/spa.h> #include <sys/txg.h> #include <sys/txg_impl.h> #include <sys/zfs_context.h> #include <sys/zio.h> #include <sys/dnode.h> #ifdef __cplusplus extern "C" { #endif struct objset; struct dsl_dir; struct dsl_dataset; struct dsl_pool; struct dmu_tx; enum scrub_func { SCRUB_FUNC_NONE, SCRUB_FUNC_CLEAN, SCRUB_FUNC_NUMFUNCS }; /* These macros are for indexing into the zfs_all_blkstats_t. */ #define DMU_OT_DEFERRED DMU_OT_NONE #define DMU_OT_TOTAL DMU_OT_NUMTYPES typedef struct zfs_blkstat { uint64_t zb_count; uint64_t zb_asize; uint64_t zb_lsize; uint64_t zb_psize; uint64_t zb_gangs; uint64_t zb_ditto_2_of_2_samevdev; uint64_t zb_ditto_2_of_3_samevdev; uint64_t zb_ditto_3_of_3_samevdev; } zfs_blkstat_t; typedef struct zfs_all_blkstats { zfs_blkstat_t zab_type[DN_MAX_LEVELS + 1][DMU_OT_TOTAL + 1]; } zfs_all_blkstats_t; typedef struct dsl_pool { /* Immutable */ spa_t *dp_spa; struct objset *dp_meta_objset; struct dsl_dir *dp_root_dir; struct dsl_dir *dp_mos_dir; struct dsl_dataset *dp_origin_snap; uint64_t dp_root_dir_obj; struct taskq *dp_vnrele_taskq; /* No lock needed - sync context only */ blkptr_t dp_meta_rootbp; list_t dp_synced_datasets; hrtime_t dp_read_overhead; uint64_t dp_throughput; uint64_t dp_write_limit; /* Uses dp_lock */ kmutex_t dp_lock; uint64_t dp_space_towrite[TXG_SIZE]; uint64_t dp_tempreserved[TXG_SIZE]; enum scrub_func dp_scrub_func; uint64_t dp_scrub_queue_obj; uint64_t dp_scrub_min_txg; uint64_t dp_scrub_max_txg; zbookmark_t dp_scrub_bookmark; boolean_t dp_scrub_pausing; boolean_t dp_scrub_isresilver; uint64_t dp_scrub_start_time; kmutex_t dp_scrub_cancel_lock; /* protects dp_scrub_restart */ boolean_t dp_scrub_restart; /* Has its own locking */ tx_state_t dp_tx; txg_list_t dp_dirty_datasets; txg_list_t dp_dirty_dirs; txg_list_t dp_sync_tasks; /* * Protects administrative changes (properties, namespace) * It is only held for write in syncing context. Therefore * syncing context does not need to ever have it for read, since * nobody else could possibly have it for write. */ krwlock_t dp_config_rwlock; zfs_all_blkstats_t *dp_blkstats; } dsl_pool_t; int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp); void dsl_pool_close(dsl_pool_t *dp); dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, uint64_t txg); void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg); void dsl_pool_zil_clean(dsl_pool_t *dp); int dsl_pool_sync_context(dsl_pool_t *dp); uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree); int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx); void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); void dsl_pool_memory_pressure(dsl_pool_t *dp); void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); int dsl_free(zio_t *pio, dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp, zio_done_func_t *done, void *private, uint32_t arc_flags); void dsl_pool_ds_destroyed(struct dsl_dataset *ds, struct dmu_tx *tx); void dsl_pool_ds_snapshotted(struct dsl_dataset *ds, struct dmu_tx *tx); void dsl_pool_ds_clone_swapped(struct dsl_dataset *ds1, struct dsl_dataset *ds2, struct dmu_tx *tx); void dsl_pool_create_origin(dsl_pool_t *dp, dmu_tx_t *tx); void dsl_pool_upgrade_clones(dsl_pool_t *dp, dmu_tx_t *tx); int dsl_pool_scrub_cancel(dsl_pool_t *dp); int dsl_pool_scrub_clean(dsl_pool_t *dp); void dsl_pool_scrub_sync(dsl_pool_t *dp, dmu_tx_t *tx); void dsl_pool_scrub_restart(dsl_pool_t *dp); taskq_t *dsl_pool_vnrele_taskq(dsl_pool_t *dp); #ifdef __cplusplus } #endif #endif /* _SYS_DSL_POOL_H */