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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 | /* | |
23 | * Copyright (c) 2012 by Delphix. All rights reserved. | |
9759c60f | 24 | * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. |
9ae529ec CS |
25 | */ |
26 | ||
27 | #ifndef _ZFEATURE_COMMON_H | |
28 | #define _ZFEATURE_COMMON_H | |
29 | ||
30 | #include <sys/fs/zfs.h> | |
31 | #include <sys/inttypes.h> | |
32 | #include <sys/types.h> | |
33 | ||
34 | #ifdef __cplusplus | |
35 | extern "C" { | |
36 | #endif | |
37 | ||
38 | struct zfeature_info; | |
39 | ||
40 | typedef struct zfeature_info { | |
41 | const char *fi_uname; /* User-facing feature name */ | |
42 | const char *fi_guid; /* On-disk feature identifier */ | |
43 | const char *fi_desc; /* Feature description */ | |
44 | boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */ | |
45 | boolean_t fi_mos; /* Is the feature necessary to read the MOS? */ | |
46 | struct zfeature_info **fi_depends; /* array; null terminated */ | |
47 | } zfeature_info_t; | |
48 | ||
49 | typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg); | |
50 | ||
51 | #define ZFS_FEATURE_DEBUG | |
52 | ||
53 | typedef enum spa_feature { | |
54 | SPA_FEATURE_ASYNC_DESTROY, | |
753c3839 | 55 | SPA_FEATURE_EMPTY_BPOBJ, |
9759c60f | 56 | SPA_FEATURE_LZ4_COMPRESS, |
9ae529ec CS |
57 | SPA_FEATURES |
58 | } spa_feature_t; | |
59 | ||
60 | extern zfeature_info_t spa_feature_table[SPA_FEATURES]; | |
61 | ||
62 | extern boolean_t zfeature_is_valid_guid(const char *); | |
63 | ||
64 | extern boolean_t zfeature_is_supported(const char *); | |
65 | extern int zfeature_lookup_guid(const char *, zfeature_info_t **res); | |
66 | extern int zfeature_lookup_name(const char *, zfeature_info_t **res); | |
67 | ||
68 | extern void zpool_feature_init(void); | |
69 | ||
70 | #ifdef __cplusplus | |
71 | } | |
72 | #endif | |
73 | ||
74 | #endif /* _ZFEATURE_COMMON_H */ |