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70e083d2 TG |
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 (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. | |
86e3c28a | 23 | * Copyright (c) 2011, 2016 by Delphix. All rights reserved. |
70e083d2 TG |
24 | */ |
25 | ||
26 | #ifndef _SYS_METASLAB_H | |
27 | #define _SYS_METASLAB_H | |
28 | ||
29 | #include <sys/spa.h> | |
30 | #include <sys/space_map.h> | |
31 | #include <sys/txg.h> | |
32 | #include <sys/zio.h> | |
33 | #include <sys/avl.h> | |
34 | ||
35 | #ifdef __cplusplus | |
36 | extern "C" { | |
37 | #endif | |
38 | ||
86e3c28a | 39 | |
70e083d2 | 40 | typedef struct metaslab_ops { |
86e3c28a | 41 | uint64_t (*msop_alloc)(metaslab_t *, uint64_t); |
70e083d2 TG |
42 | } metaslab_ops_t; |
43 | ||
86e3c28a | 44 | |
70e083d2 TG |
45 | extern metaslab_ops_t *zfs_metaslab_ops; |
46 | ||
47 | int metaslab_init(metaslab_group_t *, uint64_t, uint64_t, uint64_t, | |
48 | metaslab_t **); | |
49 | void metaslab_fini(metaslab_t *); | |
50 | ||
51 | void metaslab_load_wait(metaslab_t *); | |
52 | int metaslab_load(metaslab_t *); | |
53 | void metaslab_unload(metaslab_t *); | |
54 | ||
55 | void metaslab_sync(metaslab_t *, uint64_t); | |
56 | void metaslab_sync_done(metaslab_t *, uint64_t); | |
57 | void metaslab_sync_reassess(metaslab_group_t *); | |
58 | uint64_t metaslab_block_maxsize(metaslab_t *); | |
59 | ||
86e3c28a CIK |
60 | #define METASLAB_HINTBP_FAVOR 0x0 |
61 | #define METASLAB_HINTBP_AVOID 0x1 | |
62 | #define METASLAB_GANG_HEADER 0x2 | |
63 | #define METASLAB_GANG_CHILD 0x4 | |
64 | #define METASLAB_ASYNC_ALLOC 0x8 | |
65 | #define METASLAB_DONT_THROTTLE 0x10 | |
66 | #define METASLAB_FASTWRITE 0x20 | |
70e083d2 TG |
67 | |
68 | int metaslab_alloc(spa_t *, metaslab_class_t *, uint64_t, | |
86e3c28a | 69 | blkptr_t *, int, uint64_t, blkptr_t *, int, zio_alloc_list_t *, zio_t *); |
70e083d2 TG |
70 | void metaslab_free(spa_t *, const blkptr_t *, uint64_t, boolean_t); |
71 | int metaslab_claim(spa_t *, const blkptr_t *, uint64_t); | |
72 | void metaslab_check_free(spa_t *, const blkptr_t *); | |
73 | void metaslab_fastwrite_mark(spa_t *, const blkptr_t *); | |
74 | void metaslab_fastwrite_unmark(spa_t *, const blkptr_t *); | |
75 | ||
86e3c28a CIK |
76 | void metaslab_alloc_trace_init(void); |
77 | void metaslab_alloc_trace_fini(void); | |
78 | void metaslab_trace_init(zio_alloc_list_t *); | |
79 | void metaslab_trace_fini(zio_alloc_list_t *); | |
80 | ||
70e083d2 TG |
81 | metaslab_class_t *metaslab_class_create(spa_t *, metaslab_ops_t *); |
82 | void metaslab_class_destroy(metaslab_class_t *); | |
83 | int metaslab_class_validate(metaslab_class_t *); | |
84 | void metaslab_class_histogram_verify(metaslab_class_t *); | |
85 | uint64_t metaslab_class_fragmentation(metaslab_class_t *); | |
86 | uint64_t metaslab_class_expandable_space(metaslab_class_t *); | |
86e3c28a CIK |
87 | boolean_t metaslab_class_throttle_reserve(metaslab_class_t *, int, |
88 | zio_t *, int); | |
89 | void metaslab_class_throttle_unreserve(metaslab_class_t *, int, zio_t *); | |
70e083d2 TG |
90 | |
91 | void metaslab_class_space_update(metaslab_class_t *, int64_t, int64_t, | |
92 | int64_t, int64_t); | |
93 | uint64_t metaslab_class_get_alloc(metaslab_class_t *); | |
94 | uint64_t metaslab_class_get_space(metaslab_class_t *); | |
95 | uint64_t metaslab_class_get_dspace(metaslab_class_t *); | |
96 | uint64_t metaslab_class_get_deferred(metaslab_class_t *); | |
97 | ||
98 | metaslab_group_t *metaslab_group_create(metaslab_class_t *, vdev_t *); | |
99 | void metaslab_group_destroy(metaslab_group_t *); | |
100 | void metaslab_group_activate(metaslab_group_t *); | |
101 | void metaslab_group_passivate(metaslab_group_t *); | |
86e3c28a | 102 | boolean_t metaslab_group_initialized(metaslab_group_t *); |
70e083d2 TG |
103 | uint64_t metaslab_group_get_space(metaslab_group_t *); |
104 | void metaslab_group_histogram_verify(metaslab_group_t *); | |
105 | uint64_t metaslab_group_fragmentation(metaslab_group_t *); | |
106 | void metaslab_group_histogram_remove(metaslab_group_t *, metaslab_t *); | |
86e3c28a CIK |
107 | void metaslab_group_alloc_decrement(spa_t *, uint64_t, void *, int); |
108 | void metaslab_group_alloc_verify(spa_t *, const blkptr_t *, void *); | |
70e083d2 TG |
109 | |
110 | #ifdef __cplusplus | |
111 | } | |
112 | #endif | |
113 | ||
114 | #endif /* _SYS_METASLAB_H */ |