/*

 * 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

 */

/*

 * Use is subject to license terms.

 */

#ifndef	_SYS_DSL_POOL_H

#define	_SYS_DSL_POOL_H

#pragma ident	"%Z%%M%	%I%	%E% SMI"

#include <sys/spa.h>

#include <sys/txg.h>

#include <sys/txg_impl.h>

#include <sys/zfs_context.h>

#ifdef	__cplusplus

extern "C" {

#endif

struct objset;

struct dsl_dir;

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;

	uint64_t dp_root_dir_obj;

	/* No lock needed - sync context only */

	blkptr_t dp_meta_rootbp;

	list_t dp_synced_datasets;

	/* Has its own locking */

	tx_state_t dp_tx;

	txg_list_t dp_dirty_datasets;

	txg_list_t dp_dirty_dirs;

	txg_list_t dp_sync_tasks;

	/*

	 * 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.

	 */

	krwlock_t dp_config_rwlock;

} dsl_pool_t;

int dsl_pool_open(spa_t *spa, uint64_t txg, dsl_pool_t **dpp);

void dsl_pool_close(dsl_pool_t *dp);

dsl_pool_t *dsl_pool_create(spa_t *spa, uint64_t txg);

void dsl_pool_sync(dsl_pool_t *dp, uint64_t txg);

void dsl_pool_zil_clean(dsl_pool_t *dp);

int dsl_pool_sync_context(dsl_pool_t *dp);

uint64_t dsl_pool_adjustedsize(dsl_pool_t *dp, boolean_t netfree);

#ifdef	__cplusplus

}

#endif

#endif /* _SYS_DSL_POOL_H */