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9ae529ec CS |
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 | /* | |
ea04106b | 23 | * Copyright (c) 2013 by Delphix. All rights reserved. |
9ae529ec CS |
24 | */ |
25 | ||
26 | #ifndef _SYS_ZFEATURE_H | |
27 | #define _SYS_ZFEATURE_H | |
28 | ||
9ae529ec | 29 | #include <sys/nvpair.h> |
ea04106b | 30 | #include <sys/txg.h> |
9ae529ec CS |
31 | #include "zfeature_common.h" |
32 | ||
33 | #ifdef __cplusplus | |
34 | extern "C" { | |
35 | #endif | |
36 | ||
ea04106b AX |
37 | #define VALID_FEATURE_FID(fid) ((fid) >= 0 && (fid) < SPA_FEATURES) |
38 | #define VALID_FEATURE_OR_NONE(fid) ((fid) == SPA_FEATURE_NONE || \ | |
39 | VALID_FEATURE_FID(fid)) | |
40 | ||
a08ee875 LG |
41 | struct spa; |
42 | struct dmu_tx; | |
43 | struct objset; | |
44 | ||
a08ee875 | 45 | extern void spa_feature_create_zap_objects(struct spa *, struct dmu_tx *); |
ea04106b AX |
46 | extern void spa_feature_enable(struct spa *, spa_feature_t, |
47 | struct dmu_tx *); | |
48 | extern void spa_feature_incr(struct spa *, spa_feature_t, struct dmu_tx *); | |
49 | extern void spa_feature_decr(struct spa *, spa_feature_t, struct dmu_tx *); | |
50 | extern boolean_t spa_feature_is_enabled(struct spa *, spa_feature_t); | |
51 | extern boolean_t spa_feature_is_active(struct spa *, spa_feature_t); | |
52 | extern boolean_t spa_feature_enabled_txg(spa_t *spa, spa_feature_t fid, | |
53 | uint64_t *txg); | |
54 | extern uint64_t spa_feature_refcount(spa_t *, spa_feature_t, uint64_t); | |
55 | extern boolean_t spa_features_check(spa_t *, boolean_t, nvlist_t *, nvlist_t *); | |
56 | ||
57 | /* | |
58 | * These functions are only exported for zhack and zdb; normal callers should | |
59 | * use the above interfaces. | |
60 | */ | |
61 | extern int feature_get_refcount(struct spa *, zfeature_info_t *, uint64_t *); | |
62 | extern int feature_get_refcount_from_disk(spa_t *spa, zfeature_info_t *feature, | |
63 | uint64_t *res); | |
64 | extern void feature_enable_sync(struct spa *, zfeature_info_t *, | |
65 | struct dmu_tx *); | |
66 | extern void feature_sync(struct spa *, zfeature_info_t *, uint64_t, | |
a08ee875 | 67 | struct dmu_tx *); |
9ae529ec CS |
68 | |
69 | #ifdef __cplusplus | |
70 | } | |
71 | #endif | |
72 | ||
73 | #endif /* _SYS_ZFEATURE_H */ |