zfeature.h revision 262093 
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) 2013 by Delphix. All rights reserved.
24 */
25
26#ifndef _SYS_ZFEATURE_H
27#define	_SYS_ZFEATURE_H
28
29#include <sys/nvpair.h>
30#include "zfeature_common.h"
31
32#ifdef	__cplusplus
33extern "C" {
34#endif
35
36struct spa;
37struct dmu_tx;
38struct objset;
39
40extern boolean_t feature_is_supported(struct objset *os, uint64_t obj,
41    uint64_t desc_obj, nvlist_t *unsup_feat, nvlist_t *enabled_feat);
42
43extern void spa_feature_create_zap_objects(struct spa *, struct dmu_tx *);
44extern void spa_feature_enable(struct spa *, zfeature_info_t *,
45    struct dmu_tx *);
46extern void spa_feature_incr(struct spa *, zfeature_info_t *, struct dmu_tx *);
47extern void spa_feature_decr(struct spa *, zfeature_info_t *, struct dmu_tx *);
48extern boolean_t spa_feature_is_enabled(struct spa *, zfeature_info_t *);
49extern boolean_t spa_feature_is_active(struct spa *, zfeature_info_t *);
50extern int spa_feature_get_refcount(struct spa *, zfeature_info_t *);
51
52#ifdef	__cplusplus
53}
54#endif
55
56#endif /* _SYS_ZFEATURE_H */
57