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_METASLAB_H 28 #define _SYS_METASLAB_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/spa.h> 33 #include <sys/space_map.h> 34 #include <sys/txg.h> 35 #include <sys/zio.h> 36 #include <sys/avl.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 typedef struct metaslab_class metaslab_class_t; 43 typedef struct metaslab_group metaslab_group_t; 44 45 extern void metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, 46 metaslab_t **mspp, uint64_t offset, uint64_t size, uint64_t txg); 47 extern void metaslab_fini(metaslab_t *msp); 48 extern void metaslab_sync(metaslab_t *msp, uint64_t txg); 49 extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg); 50 51 extern int metaslab_alloc(spa_t *spa, uint64_t size, dva_t *dva, uint64_t txg); 52 extern void metaslab_free(spa_t *spa, dva_t *dva, uint64_t txg); 53 extern int metaslab_claim(spa_t *spa, dva_t *dva, uint64_t txg); 54 55 extern metaslab_class_t *metaslab_class_create(void); 56 extern void metaslab_class_destroy(metaslab_class_t *mc); 57 extern void metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg); 58 extern void metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg); 59 60 extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc, 61 vdev_t *vd); 62 extern void metaslab_group_destroy(metaslab_group_t *mg); 63 extern void metaslab_group_add(metaslab_group_t *mg, metaslab_t *msp, 64 uint64_t weight); 65 extern void metaslab_group_remove(metaslab_group_t *mg, metaslab_t *msp); 66 extern void metaslab_group_sort(metaslab_group_t *mg, metaslab_t *msp, 67 uint64_t weight); 68 69 #ifdef __cplusplus 70 } 71 #endif 72 73 #endif /* _SYS_METASLAB_H */ 74