1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_DSL_POOL_H 27 #define _SYS_DSL_POOL_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/spa.h> 32 #include <sys/txg.h> 33 #include <sys/txg_impl.h> 34 #include <sys/zfs_context.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 struct objset; 41 struct dsl_dir; 42 43 typedef struct dsl_pool { 44 /* Immutable */ 45 spa_t *dp_spa; 46 struct objset *dp_meta_objset; 47 struct dsl_dir *dp_root_dir; 48 struct dsl_dir *dp_mos_dir; 49 uint64_t dp_root_dir_obj; 50 51 /* No lock needed - sync context only */ 52 blkptr_t dp_meta_rootbp; 53 list_t dp_synced_objsets; 54 55 /* Has its own locking */ 56 tx_state_t dp_tx; 57 txg_list_t dp_dirty_datasets; 58 txg_list_t dp_dirty_dirs; 59 txg_list_t dp_sync_tasks; 60 61 /* 62 * Protects administrative changes (properties, namespace) 63 * It is only held for write in syncing context. Therefore 64 * syncing context does not need to ever have it for read, since 65 * nobody else could possibly have it for write. 66 */ 67 krwlock_t dp_config_rwlock; 68 } dsl_pool_t; 69 70 int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp); 71 void dsl_pool_close(dsl_pool_t *dp); 72 dsl_pool_t *dsl_pool_create(spa_t *spa, uint64_t txg); 73 void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg); 74 void dsl_pool_zil_clean(dsl_pool_t *dp); 75 int dsl_pool_sync_context(dsl_pool_t *dp); 76 uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree); 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* _SYS_DSL_POOL_H */ 83