metaslab.h revision fa9e4066f08beec538e775443c5be79dd423fcab
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 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 void metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo,
metaslab_t **mspp, uint64_t offset, 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 size, dva_t *dva, uint64_t txg);
extern void metaslab_free(spa_t *spa, dva_t *dva, uint64_t txg);
extern int metaslab_claim(spa_t *spa, dva_t *dva, 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);
extern void metaslab_group_add(metaslab_group_t *mg, metaslab_t *msp,
uint64_t weight);
extern void metaslab_group_remove(metaslab_group_t *mg, metaslab_t *msp);
extern void metaslab_group_sort(metaslab_group_t *mg, metaslab_t *msp,
uint64_t weight);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_METASLAB_H */