/*

 * 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

 */

/*

 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

#ifndef _SYS_METASLAB_H

#define	_SYS_METASLAB_H

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

#include <sys/spa.h>

#include <sys/space_map.h>

#include <sys/txg.h>

#include <sys/zio.h>

#include <sys/avl.h>

#ifdef	__cplusplus

extern "C" {

#endif

typedef struct metaslab_class metaslab_class_t;

typedef struct metaslab_group metaslab_group_t;

extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo,

    uint64_t start, uint64_t size, uint64_t txg);

extern void metaslab_fini(metaslab_t *msp);

extern void metaslab_sync(metaslab_t *msp, uint64_t txg);

extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg);

extern int metaslab_alloc(spa_t *spa, uint64_t psize, blkptr_t *bp,

    int ncopies, uint64_t txg, blkptr_t *hintbp);

extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg,

    boolean_t now);

extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg);

extern metaslab_class_t *metaslab_class_create(void);

extern void metaslab_class_destroy(metaslab_class_t *mc);

extern void metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg);

extern void metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg);

extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc,

    vdev_t *vd);

extern void metaslab_group_destroy(metaslab_group_t *mg);

#ifdef	__cplusplus

}

#endif

#endif	/* _SYS_METASLAB_H */