projects / mirror_zfs-debian.git / blame
| Commit | Line | Data |
|---|---|---|
| 34dc7c2f BB |
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 | /* | |
| 428870ff | 22 | * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
| 34dc7c2f BB |
23 | */ |
| 24 | ||
| 25 | #ifndef _SYS_METASLAB_H | |
| 26 | #define _SYS_METASLAB_H | |
| 27 | ||
| 34dc7c2f BB |
28 | #include <sys/spa.h> |
| 29 | #include <sys/space_map.h> | |
| 30 | #include <sys/txg.h> | |
| 31 | #include <sys/zio.h> | |
| 32 | #include <sys/avl.h> | |
| 33 | ||
| 34 | #ifdef __cplusplus | |
| 35 | extern "C" { | |
| 36 | #endif | |
| 37 | ||
| 9babb374 BB |
38 | extern space_map_ops_t *zfs_metaslab_ops; |
| 39 | ||
| 34dc7c2f BB |
40 | extern metaslab_t *metaslab_init(metaslab_group_t *mg, space_map_obj_t *smo, |
| 41 | uint64_t start, uint64_t size, uint64_t txg); | |
| 42 | extern void metaslab_fini(metaslab_t *msp); | |
| 43 | extern void metaslab_sync(metaslab_t *msp, uint64_t txg); | |
| 44 | extern void metaslab_sync_done(metaslab_t *msp, uint64_t txg); | |
| 428870ff | 45 | extern void metaslab_sync_reassess(metaslab_group_t *mg); |
| 34dc7c2f | 46 | |
| b128c09f BB |
47 | #define METASLAB_HINTBP_FAVOR 0x0 |
| 48 | #define METASLAB_HINTBP_AVOID 0x1 | |
| 49 | #define METASLAB_GANG_HEADER 0x2 | |
| 50 | ||
| 34dc7c2f | 51 | extern int metaslab_alloc(spa_t *spa, metaslab_class_t *mc, uint64_t psize, |
| b128c09f | 52 | blkptr_t *bp, int ncopies, uint64_t txg, blkptr_t *hintbp, int flags); |
| 34dc7c2f BB |
53 | extern void metaslab_free(spa_t *spa, const blkptr_t *bp, uint64_t txg, |
| 54 | boolean_t now); | |
| 55 | extern int metaslab_claim(spa_t *spa, const blkptr_t *bp, uint64_t txg); | |
| 56 | ||
| 428870ff BB |
57 | extern metaslab_class_t *metaslab_class_create(spa_t *spa, |
| 58 | space_map_ops_t *ops); | |
| 34dc7c2f | 59 | extern void metaslab_class_destroy(metaslab_class_t *mc); |
| 428870ff BB |
60 | extern int metaslab_class_validate(metaslab_class_t *mc); |
| 61 | ||
| 62 | extern void metaslab_class_space_update(metaslab_class_t *mc, | |
| 63 | int64_t alloc_delta, int64_t defer_delta, | |
| 64 | int64_t space_delta, int64_t dspace_delta); | |
| 65 | extern uint64_t metaslab_class_get_alloc(metaslab_class_t *mc); | |
| 66 | extern uint64_t metaslab_class_get_space(metaslab_class_t *mc); | |
| 67 | extern uint64_t metaslab_class_get_dspace(metaslab_class_t *mc); | |
| 68 | extern uint64_t metaslab_class_get_deferred(metaslab_class_t *mc); | |
| 34dc7c2f BB |
69 | |
| 70 | extern metaslab_group_t *metaslab_group_create(metaslab_class_t *mc, | |
| 71 | vdev_t *vd); | |
| 72 | extern void metaslab_group_destroy(metaslab_group_t *mg); | |
| 428870ff BB |
73 | extern void metaslab_group_activate(metaslab_group_t *mg); |
| 74 | extern void metaslab_group_passivate(metaslab_group_t *mg); | |
| 34dc7c2f BB |
75 | |
| 76 | #ifdef __cplusplus | |
| 77 | } | |
| 78 | #endif | |
| 79 | ||
| 80 | #endif /* _SYS_METASLAB_H */ |