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.
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.
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]
22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
26 #ifndef _SYS_DSL_POOL_H
27 #define _SYS_DSL_POOL_H
29 #pragma ident "@(#)dsl_pool.h 1.5 08/03/20 SMI"
33 #include <sys/txg_impl.h>
34 #include <sys/zfs_context.h>
43 typedef struct dsl_pool {
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;
51 /* No lock needed - sync context only */
52 blkptr_t dp_meta_rootbp;
53 list_t dp_synced_datasets;
54 uint64_t dp_write_limit;
58 uint64_t dp_space_towrite[TXG_SIZE];
59 uint64_t dp_tempreserved[TXG_SIZE];
61 /* Has its own locking */
63 txg_list_t dp_dirty_datasets;
64 txg_list_t dp_dirty_dirs;
65 txg_list_t dp_sync_tasks;
68 * Protects administrative changes (properties, namespace)
69 * It is only held for write in syncing context. Therefore
70 * syncing context does not need to ever have it for read, since
71 * nobody else could possibly have it for write.
73 krwlock_t dp_config_rwlock;
76 int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);
77 void dsl_pool_close(dsl_pool_t *dp);
78 dsl_pool_t *dsl_pool_create(spa_t *spa, uint64_t txg);
79 void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);
80 void dsl_pool_zil_clean(dsl_pool_t *dp);
81 int dsl_pool_sync_context(dsl_pool_t *dp);
82 uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);
83 int dsl_pool_tempreserve_space(dsl_pool_t *dp, uint64_t space, dmu_tx_t *tx);
84 void dsl_pool_tempreserve_clear(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
85 void dsl_pool_memory_pressure(dsl_pool_t *dp);
86 void dsl_pool_willuse_space(dsl_pool_t *dp, int64_t space, dmu_tx_t *tx);
92 #endif /* _SYS_DSL_POOL_H */