/* * 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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. * Copyright (c) 2013, 2017 by Delphix. All rights reserved. * Copyright 2016 Nexenta Systems, Inc. All rights reserved. */ #ifndef _SYS_DSL_POOL_H #define _SYS_DSL_POOL_H #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef __cplusplus extern "C" { #endif extern int zfs_txg_synctime_ms; struct objset; struct dsl_dir; struct dsl_dataset; struct dsl_pool; struct dmu_tx; struct dsl_scan; struct dsl_crypto_params; extern unsigned long zfs_dirty_data_max; extern unsigned long zfs_dirty_data_max_max; extern int zfs_dirty_data_sync_percent; extern int zfs_dirty_data_max_percent; extern int zfs_dirty_data_max_max_percent; extern int zfs_delay_min_dirty_percent; extern unsigned long zfs_delay_scale; /* These macros are for indexing into the zfs_all_blkstats_t. */ #define DMU_OT_DEFERRED DMU_OT_NONE #define DMU_OT_OTHER DMU_OT_NUMTYPES /* place holder for DMU_OT() types */ #define DMU_OT_TOTAL (DMU_OT_NUMTYPES + 1) 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]; kmutex_t zab_lock; } 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_dir *dp_free_dir; struct dsl_dir *dp_leak_dir; struct dsl_dataset *dp_origin_snap; uint64_t dp_root_dir_obj; struct taskq *dp_iput_taskq; /* No lock needed - sync context only */ blkptr_t dp_meta_rootbp; uint64_t dp_tmp_userrefs_obj; bpobj_t dp_free_bpobj; uint64_t dp_bptree_obj; uint64_t dp_empty_bpobj; bpobj_t dp_obsolete_bpobj; struct dsl_scan *dp_scan; /* Uses dp_lock */ kmutex_t dp_lock; kcondvar_t dp_spaceavail_cv; uint64_t dp_dirty_pertxg[TXG_SIZE]; uint64_t dp_dirty_total; uint64_t dp_long_free_dirty_pertxg[TXG_SIZE]; uint64_t dp_mos_used_delta; uint64_t dp_mos_compressed_delta; uint64_t dp_mos_uncompressed_delta; /* * Time of most recently scheduled (furthest in the future) * wakeup for delayed transactions. */ hrtime_t dp_last_wakeup; /* Has its own locking */ tx_state_t dp_tx; txg_list_t dp_dirty_datasets; txg_list_t dp_dirty_zilogs; txg_list_t dp_dirty_dirs; txg_list_t dp_sync_tasks; txg_list_t dp_early_sync_tasks; taskq_t *dp_sync_taskq; taskq_t *dp_zil_clean_taskq; /* * 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. */ rrwlock_t dp_config_rwlock; zfs_all_blkstats_t *dp_blkstats; } dsl_pool_t; int dsl_pool_init(spa_t *spa, uint64_t txg, dsl_pool_t **dpp); int dsl_pool_open(dsl_pool_t *dp); void dsl_pool_close(dsl_pool_t *dp); dsl_pool_t *dsl_pool_create(spa_t *spa, nvlist_t *zplprops, struct dsl_crypto_params *dcp, uint64_t txg); void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg); void dsl_pool_sync_done(dsl_pool_t *dp, uint64_t txg); int dsl_pool_sync_context(dsl_pool_t *dp); uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, zfs_space_check_t slop_policy); uint64_t dsl_pool_unreserved_space(dsl_pool_t *dp, zfs_space_check_t slop_policy); void dsl_pool_dirty_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); void dsl_pool_undirty_space(dsl_pool_t *dp, int64_t space, uint64_t txg); void dsl_free(dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp); void dsl_free_sync(zio_t *pio, dsl_pool_t *dp, uint64_t txg, const blkptr_t *bpp); 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); void dsl_pool_upgrade_dir_clones(dsl_pool_t *dp, dmu_tx_t *tx); void dsl_pool_mos_diduse_space(dsl_pool_t *dp, int64_t used, int64_t comp, int64_t uncomp); void dsl_pool_ckpoint_diduse_space(dsl_pool_t *dp, int64_t used, int64_t comp, int64_t uncomp); boolean_t dsl_pool_need_dirty_delay(dsl_pool_t *dp); void dsl_pool_config_enter(dsl_pool_t *dp, void *tag); void dsl_pool_config_enter_prio(dsl_pool_t *dp, void *tag); void dsl_pool_config_exit(dsl_pool_t *dp, void *tag); boolean_t dsl_pool_config_held(dsl_pool_t *dp); boolean_t dsl_pool_config_held_writer(dsl_pool_t *dp); taskq_t *dsl_pool_iput_taskq(dsl_pool_t *dp); int dsl_pool_user_hold(dsl_pool_t *dp, uint64_t dsobj, const char *tag, uint64_t now, dmu_tx_t *tx); int dsl_pool_user_release(dsl_pool_t *dp, uint64_t dsobj, const char *tag, dmu_tx_t *tx); void dsl_pool_clean_tmp_userrefs(dsl_pool_t *dp); int dsl_pool_open_special_dir(dsl_pool_t *dp, const char *name, dsl_dir_t **); int dsl_pool_hold(const char *name, void *tag, dsl_pool_t **dp); void dsl_pool_rele(dsl_pool_t *dp, void *tag); void dsl_pool_create_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx); void dsl_pool_destroy_obsolete_bpobj(dsl_pool_t *dp, dmu_tx_t *tx); #ifdef __cplusplus } #endif #endif /* _SYS_DSL_POOL_H */