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 /* 22*1ab7f2deSmaybee * Copyright 2008 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 #pragma ident "%Z%%M% %I% %E% SMI" 30fa9e4066Sahrens 31fa9e4066Sahrens #include <sys/spa.h> 32fa9e4066Sahrens #include <sys/txg.h> 33fa9e4066Sahrens #include <sys/txg_impl.h> 34fa9e4066Sahrens #include <sys/zfs_context.h> 35fa9e4066Sahrens 36fa9e4066Sahrens #ifdef __cplusplus 37fa9e4066Sahrens extern "C" { 38fa9e4066Sahrens #endif 39fa9e4066Sahrens 40fa9e4066Sahrens struct objset; 41fa9e4066Sahrens struct dsl_dir; 42fa9e4066Sahrens 43fa9e4066Sahrens typedef struct dsl_pool { 44fa9e4066Sahrens /* Immutable */ 45fa9e4066Sahrens spa_t *dp_spa; 46fa9e4066Sahrens struct objset *dp_meta_objset; 47fa9e4066Sahrens struct dsl_dir *dp_root_dir; 48fa9e4066Sahrens struct dsl_dir *dp_mos_dir; 49fa9e4066Sahrens uint64_t dp_root_dir_obj; 50fa9e4066Sahrens 51fa9e4066Sahrens /* No lock needed - sync context only */ 52fa9e4066Sahrens blkptr_t dp_meta_rootbp; 533cb34c60Sahrens list_t dp_synced_datasets; 54*1ab7f2deSmaybee uint64_t dp_write_limit; 55*1ab7f2deSmaybee 56*1ab7f2deSmaybee /* Uses dp_lock */ 57*1ab7f2deSmaybee kmutex_t dp_lock; 58*1ab7f2deSmaybee uint64_t dp_space_towrite[TXG_SIZE]; 59*1ab7f2deSmaybee uint64_t dp_tempreserved[TXG_SIZE]; 60fa9e4066Sahrens 61fa9e4066Sahrens /* Has its own locking */ 62fa9e4066Sahrens tx_state_t dp_tx; 63fa9e4066Sahrens txg_list_t dp_dirty_datasets; 64fa9e4066Sahrens txg_list_t dp_dirty_dirs; 651d452cf5Sahrens txg_list_t dp_sync_tasks; 66fa9e4066Sahrens 67fa9e4066Sahrens /* 68fa9e4066Sahrens * Protects administrative changes (properties, namespace) 69fa9e4066Sahrens * It is only held for write in syncing context. Therefore 70fa9e4066Sahrens * syncing context does not need to ever have it for read, since 71fa9e4066Sahrens * nobody else could possibly have it for write. 72fa9e4066Sahrens */ 73fa9e4066Sahrens krwlock_t dp_config_rwlock; 74fa9e4066Sahrens } dsl_pool_t; 75fa9e4066Sahrens 76ea8dc4b6Seschrock int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp); 77fa9e4066Sahrens void dsl_pool_close(dsl_pool_t *dp); 78fa9e4066Sahrens dsl_pool_t *dsl_pool_create(spa_t *spa, uint64_t txg); 79fa9e4066Sahrens void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg); 80fa9e4066Sahrens void dsl_pool_zil_clean(dsl_pool_t *dp); 81fa9e4066Sahrens int dsl_pool_sync_context(dsl_pool_t *dp); 82fa9e4066Sahrens uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree); 83*1ab7f2deSmaybee int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx); 84*1ab7f2deSmaybee void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); 85*1ab7f2deSmaybee void dsl_pool_memory_pressure(dsl_pool_t *dp); 86*1ab7f2deSmaybee void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx); 87fa9e4066Sahrens 88fa9e4066Sahrens #ifdef __cplusplus 89fa9e4066Sahrens } 90fa9e4066Sahrens #endif 91fa9e4066Sahrens 92fa9e4066Sahrens #endif /* _SYS_DSL_POOL_H */ 93