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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 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. 12 * 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] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_METASLAB_H 27 #define _SYS_METASLAB_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/spa.h> 32 #include <sys/space_map.h> 33 #include <sys/txg.h> 34 #include <sys/zio.h> 35 #include <sys/avl.h> 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 typedef struct metaslab_class metaslab_class_t; 42 typedef struct metaslab_group metaslab_group_t; 43 44 extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, 45 uint64_t start, uint64_t size, uint64_t txg); 46 extern void metaslab_fini(metaslab_t *msp); 47 extern void metaslab_sync(metaslab_t *msp, uint64_t txg); 48 extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg); 49 50 extern int metaslab_alloc(spa_t *spa, uint64_t psize, blkptr_t *bp, 51 int ncopies, uint64_t txg, blkptr_t *hintbp, boolean_t hintbp_avoid); 52 extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg, 53 boolean_t now); 54 extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg); 55 56 extern metaslab_class_t *metaslab_class_create(void); 57 extern void metaslab_class_destroy(metaslab_class_t *mc); 58 extern void metaslab_class_add(metaslab_class_t *mc, metaslab_group_t *mg); 59 extern void metaslab_class_remove(metaslab_class_t *mc, metaslab_group_t *mg); 60 61 extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc, 62 vdev_t *vd); 63 extern void metaslab_group_destroy(metaslab_group_t *mg); 64 65 #ifdef __cplusplus 66 } 67 #endif 68 69 #endif /* _SYS_METASLAB_H */ 70