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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. |
492f64e9 | 23 | * Copyright (c) 2011, 2018 by Delphix. All rights reserved. |
cc99f275 | 24 | * Copyright (c) 2017, Intel Corporation. |
34dc7c2f BB |
25 | */ |
26 | ||
27 | #ifndef _SYS_METASLAB_H | |
28 | #define _SYS_METASLAB_H | |
29 | ||
34dc7c2f BB |
30 | #include <sys/spa.h> |
31 | #include <sys/space_map.h> | |
32 | #include <sys/txg.h> | |
33 | #include <sys/zio.h> | |
34 | #include <sys/avl.h> | |
35 | ||
36 | #ifdef __cplusplus | |
37 | extern "C" { | |
38 | #endif | |
39 | ||
4e21fd06 | 40 | |
93cf2076 | 41 | typedef struct metaslab_ops { |
4e21fd06 | 42 | uint64_t (*msop_alloc)(metaslab_t *, uint64_t); |
93cf2076 | 43 | } metaslab_ops_t; |
9babb374 | 44 | |
4e21fd06 | 45 | |
93cf2076 GW |
46 | extern metaslab_ops_t *zfs_metaslab_ops; |
47 | ||
fb42a493 PS |
48 | int metaslab_init(metaslab_group_t *, uint64_t, uint64_t, uint64_t, |
49 | metaslab_t **); | |
f3a7f661 | 50 | void metaslab_fini(metaslab_t *); |
93cf2076 | 51 | |
f3a7f661 GW |
52 | int metaslab_load(metaslab_t *); |
53 | void metaslab_unload(metaslab_t *); | |
425d3237 SD |
54 | |
55 | uint64_t metaslab_allocated_space(metaslab_t *); | |
93cf2076 | 56 | |
f3a7f661 GW |
57 | void metaslab_sync(metaslab_t *, uint64_t); |
58 | void metaslab_sync_done(metaslab_t *, uint64_t); | |
59 | void metaslab_sync_reassess(metaslab_group_t *); | |
60 | uint64_t metaslab_block_maxsize(metaslab_t *); | |
34dc7c2f | 61 | |
cc99f275 DB |
62 | /* |
63 | * metaslab alloc flags | |
64 | */ | |
3dfb57a3 DB |
65 | #define METASLAB_HINTBP_FAVOR 0x0 |
66 | #define METASLAB_HINTBP_AVOID 0x1 | |
67 | #define METASLAB_GANG_HEADER 0x2 | |
68 | #define METASLAB_GANG_CHILD 0x4 | |
69 | #define METASLAB_ASYNC_ALLOC 0x8 | |
70 | #define METASLAB_DONT_THROTTLE 0x10 | |
cc99f275 DB |
71 | #define METASLAB_MUST_RESERVE 0x20 |
72 | #define METASLAB_FASTWRITE 0x40 | |
b128c09f | 73 | |
f3a7f661 | 74 | int metaslab_alloc(spa_t *, metaslab_class_t *, uint64_t, |
492f64e9 PD |
75 | blkptr_t *, int, uint64_t, blkptr_t *, int, zio_alloc_list_t *, zio_t *, |
76 | int); | |
a1d477c2 | 77 | int metaslab_alloc_dva(spa_t *, metaslab_class_t *, uint64_t, |
492f64e9 | 78 | dva_t *, int, dva_t *, uint64_t, int, zio_alloc_list_t *, int); |
f3a7f661 | 79 | void metaslab_free(spa_t *, const blkptr_t *, uint64_t, boolean_t); |
d2734cce SD |
80 | void metaslab_free_concrete(vdev_t *, uint64_t, uint64_t, boolean_t); |
81 | void metaslab_free_dva(spa_t *, const dva_t *, boolean_t); | |
a1d477c2 MA |
82 | void metaslab_free_impl_cb(uint64_t, vdev_t *, uint64_t, uint64_t, void *); |
83 | void metaslab_unalloc_dva(spa_t *, const dva_t *, uint64_t); | |
f3a7f661 | 84 | int metaslab_claim(spa_t *, const blkptr_t *, uint64_t); |
a1d477c2 | 85 | int metaslab_claim_impl(vdev_t *, uint64_t, uint64_t, uint64_t); |
f3a7f661 GW |
86 | void metaslab_check_free(spa_t *, const blkptr_t *); |
87 | void metaslab_fastwrite_mark(spa_t *, const blkptr_t *); | |
88 | void metaslab_fastwrite_unmark(spa_t *, const blkptr_t *); | |
34dc7c2f | 89 | |
4e21fd06 DB |
90 | void metaslab_alloc_trace_init(void); |
91 | void metaslab_alloc_trace_fini(void); | |
92 | void metaslab_trace_init(zio_alloc_list_t *); | |
93 | void metaslab_trace_fini(zio_alloc_list_t *); | |
94 | ||
f3a7f661 GW |
95 | metaslab_class_t *metaslab_class_create(spa_t *, metaslab_ops_t *); |
96 | void metaslab_class_destroy(metaslab_class_t *); | |
97 | int metaslab_class_validate(metaslab_class_t *); | |
98 | void metaslab_class_histogram_verify(metaslab_class_t *); | |
99 | uint64_t metaslab_class_fragmentation(metaslab_class_t *); | |
100 | uint64_t metaslab_class_expandable_space(metaslab_class_t *); | |
492f64e9 | 101 | boolean_t metaslab_class_throttle_reserve(metaslab_class_t *, int, int, |
3dfb57a3 | 102 | zio_t *, int); |
492f64e9 | 103 | void metaslab_class_throttle_unreserve(metaslab_class_t *, int, int, zio_t *); |
428870ff | 104 | |
f3a7f661 GW |
105 | uint64_t metaslab_class_get_alloc(metaslab_class_t *); |
106 | uint64_t metaslab_class_get_space(metaslab_class_t *); | |
107 | uint64_t metaslab_class_get_dspace(metaslab_class_t *); | |
108 | uint64_t metaslab_class_get_deferred(metaslab_class_t *); | |
34dc7c2f | 109 | |
492f64e9 | 110 | metaslab_group_t *metaslab_group_create(metaslab_class_t *, vdev_t *, int); |
f3a7f661 GW |
111 | void metaslab_group_destroy(metaslab_group_t *); |
112 | void metaslab_group_activate(metaslab_group_t *); | |
113 | void metaslab_group_passivate(metaslab_group_t *); | |
3dfb57a3 | 114 | boolean_t metaslab_group_initialized(metaslab_group_t *); |
f3a7f661 GW |
115 | uint64_t metaslab_group_get_space(metaslab_group_t *); |
116 | void metaslab_group_histogram_verify(metaslab_group_t *); | |
117 | uint64_t metaslab_group_fragmentation(metaslab_group_t *); | |
118 | void metaslab_group_histogram_remove(metaslab_group_t *, metaslab_t *); | |
492f64e9 PD |
119 | void metaslab_group_alloc_decrement(spa_t *, uint64_t, void *, int, int, |
120 | boolean_t); | |
121 | void metaslab_group_alloc_verify(spa_t *, const blkptr_t *, void *, int); | |
34dc7c2f BB |
122 | |
123 | #ifdef __cplusplus | |
124 | } | |
125 | #endif | |
126 | ||
127 | #endif /* _SYS_METASLAB_H */ |