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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_DSL_POOL_H 28 #define _SYS_DSL_POOL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/spa.h> 33 #include <sys/txg.h> 34 #include <sys/txg_impl.h> 35 #include <sys/zfs_context.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 struct objset; 42 struct dsl_dir; 43 44 typedef struct dsl_pool { 45 /* Immutable */ 46 spa_t *dp_spa; 47 struct objset *dp_meta_objset; 48 struct dsl_dir *dp_root_dir; 49 struct dsl_dir *dp_mos_dir; 50 uint64_t dp_root_dir_obj; 51 52 /* No lock needed - sync context only */ 53 blkptr_t dp_meta_rootbp; 54 list_t dp_synced_objsets; 55 56 /* Has its own locking */ 57 tx_state_t dp_tx; 58 txg_list_t dp_dirty_datasets; 59 txg_list_t dp_dirty_dirs; 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 dsl_pool_t *dsl_pool_open(spa_t *spa, uint64_t txg); 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