1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ecc2d604Sbonwick * Common Development and Distribution License (the "License"). 6ecc2d604Sbonwick * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 223f9d6ad7SLin Ling * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23*8363e80aSGeorge Wilson * Copyright (c) 2011, 2016 by Delphix. All rights reserved. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_METASLAB_H 27fa9e4066Sahrens #define _SYS_METASLAB_H 28fa9e4066Sahrens 29fa9e4066Sahrens #include <sys/spa.h> 30fa9e4066Sahrens #include <sys/space_map.h> 31fa9e4066Sahrens #include <sys/txg.h> 32fa9e4066Sahrens #include <sys/zio.h> 33fa9e4066Sahrens #include <sys/avl.h> 34fa9e4066Sahrens 35fa9e4066Sahrens #ifdef __cplusplus 36fa9e4066Sahrens extern "C" { 37fa9e4066Sahrens #endif 38fa9e4066Sahrens 39*8363e80aSGeorge Wilson 400713e232SGeorge Wilson typedef struct metaslab_ops { 41*8363e80aSGeorge Wilson uint64_t (*msop_alloc)(metaslab_t *, uint64_t); 420713e232SGeorge Wilson } metaslab_ops_t; 43d6e555bdSGeorge Wilson 44*8363e80aSGeorge Wilson 450713e232SGeorge Wilson extern metaslab_ops_t *zfs_metaslab_ops; 460713e232SGeorge Wilson 471e9bd7ecSPrakash Surya int metaslab_init(metaslab_group_t *, uint64_t, uint64_t, uint64_t, 481e9bd7ecSPrakash Surya metaslab_t **); 492e4c9986SGeorge Wilson void metaslab_fini(metaslab_t *); 500713e232SGeorge Wilson 512e4c9986SGeorge Wilson void metaslab_load_wait(metaslab_t *); 522e4c9986SGeorge Wilson int metaslab_load(metaslab_t *); 532e4c9986SGeorge Wilson void metaslab_unload(metaslab_t *); 540713e232SGeorge Wilson 552e4c9986SGeorge Wilson void metaslab_sync(metaslab_t *, uint64_t); 562e4c9986SGeorge Wilson void metaslab_sync_done(metaslab_t *, uint64_t); 572e4c9986SGeorge Wilson void metaslab_sync_reassess(metaslab_group_t *); 582e4c9986SGeorge Wilson uint64_t metaslab_block_maxsize(metaslab_t *); 59fa9e4066Sahrens 60e14bb325SJeff Bonwick #define METASLAB_HINTBP_FAVOR 0x0 61e14bb325SJeff Bonwick #define METASLAB_HINTBP_AVOID 0x1 62e14bb325SJeff Bonwick #define METASLAB_GANG_HEADER 0x2 6309c9d376SGeorge Wilson #define METASLAB_GANG_CHILD 0x4 640f7643c7SGeorge Wilson #define METASLAB_ASYNC_ALLOC 0x8 650f7643c7SGeorge Wilson #define METASLAB_DONT_THROTTLE 0x10 66e14bb325SJeff Bonwick 672e4c9986SGeorge Wilson int metaslab_alloc(spa_t *, metaslab_class_t *, uint64_t, 68*8363e80aSGeorge Wilson blkptr_t *, int, uint64_t, blkptr_t *, int, zio_alloc_list_t *, zio_t *); 692e4c9986SGeorge Wilson void metaslab_free(spa_t *, const blkptr_t *, uint64_t, boolean_t); 702e4c9986SGeorge Wilson int metaslab_claim(spa_t *, const blkptr_t *, uint64_t); 712e4c9986SGeorge Wilson void metaslab_check_free(spa_t *, const blkptr_t *); 72fa9e4066Sahrens 73*8363e80aSGeorge Wilson void metaslab_alloc_trace_init(void); 74*8363e80aSGeorge Wilson void metaslab_alloc_trace_fini(void); 75*8363e80aSGeorge Wilson void metaslab_trace_init(zio_alloc_list_t *); 76*8363e80aSGeorge Wilson void metaslab_trace_fini(zio_alloc_list_t *); 77*8363e80aSGeorge Wilson 782e4c9986SGeorge Wilson metaslab_class_t *metaslab_class_create(spa_t *, metaslab_ops_t *); 792e4c9986SGeorge Wilson void metaslab_class_destroy(metaslab_class_t *); 802e4c9986SGeorge Wilson int metaslab_class_validate(metaslab_class_t *); 812e4c9986SGeorge Wilson void metaslab_class_histogram_verify(metaslab_class_t *); 822e4c9986SGeorge Wilson uint64_t metaslab_class_fragmentation(metaslab_class_t *); 832e4c9986SGeorge Wilson uint64_t metaslab_class_expandable_space(metaslab_class_t *); 840f7643c7SGeorge Wilson boolean_t metaslab_class_throttle_reserve(metaslab_class_t *, int, 850f7643c7SGeorge Wilson zio_t *, int); 860f7643c7SGeorge Wilson void metaslab_class_throttle_unreserve(metaslab_class_t *, int, zio_t *); 87fa9e4066Sahrens 882e4c9986SGeorge Wilson void metaslab_class_space_update(metaslab_class_t *, int64_t, int64_t, 892e4c9986SGeorge Wilson int64_t, int64_t); 902e4c9986SGeorge Wilson uint64_t metaslab_class_get_alloc(metaslab_class_t *); 912e4c9986SGeorge Wilson uint64_t metaslab_class_get_space(metaslab_class_t *); 922e4c9986SGeorge Wilson uint64_t metaslab_class_get_dspace(metaslab_class_t *); 932e4c9986SGeorge Wilson uint64_t metaslab_class_get_deferred(metaslab_class_t *); 94b24ab676SJeff Bonwick 952e4c9986SGeorge Wilson metaslab_group_t *metaslab_group_create(metaslab_class_t *, vdev_t *); 962e4c9986SGeorge Wilson void metaslab_group_destroy(metaslab_group_t *); 972e4c9986SGeorge Wilson void metaslab_group_activate(metaslab_group_t *); 982e4c9986SGeorge Wilson void metaslab_group_passivate(metaslab_group_t *); 990f7643c7SGeorge Wilson boolean_t metaslab_group_initialized(metaslab_group_t *); 1002e4c9986SGeorge Wilson uint64_t metaslab_group_get_space(metaslab_group_t *); 1012e4c9986SGeorge Wilson void metaslab_group_histogram_verify(metaslab_group_t *); 1022e4c9986SGeorge Wilson uint64_t metaslab_group_fragmentation(metaslab_group_t *); 1032e4c9986SGeorge Wilson void metaslab_group_histogram_remove(metaslab_group_t *, metaslab_t *); 1040f7643c7SGeorge Wilson void metaslab_group_alloc_decrement(spa_t *, uint64_t, void *, int); 1050f7643c7SGeorge Wilson void metaslab_group_alloc_verify(spa_t *, const blkptr_t *, void *); 106fa9e4066Sahrens 107fa9e4066Sahrens #ifdef __cplusplus 108fa9e4066Sahrens } 109fa9e4066Sahrens #endif 110fa9e4066Sahrens 111fa9e4066Sahrens #endif /* _SYS_METASLAB_H */ 112