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.
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.
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]
23 * Copyright (c) 2013 by Delphix. All rights reserved.
26 #ifndef _SYS_ZFEATURE_H
27 #define _SYS_ZFEATURE_H
29 #include <sys/nvpair.h>
31 #include "zfeature_common.h"
41 extern void spa_feature_create_zap_objects(struct spa *, struct dmu_tx *);
42 extern void spa_feature_enable(struct spa *, spa_feature_t,
44 extern void spa_feature_incr(struct spa *, spa_feature_t, struct dmu_tx *);
45 extern void spa_feature_decr(struct spa *, spa_feature_t, struct dmu_tx *);
46 extern boolean_t spa_feature_is_enabled(struct spa *, spa_feature_t);
47 extern boolean_t spa_feature_is_active(struct spa *, spa_feature_t);
48 extern uint64_t spa_feature_refcount(spa_t *, spa_feature_t, uint64_t);
49 extern boolean_t spa_features_check(spa_t *, boolean_t, nvlist_t *, nvlist_t *);
52 * These functions are only exported for zhack and zdb; normal callers should
53 * use the above interfaces.
55 extern int feature_get_refcount(struct spa *, zfeature_info_t *, uint64_t *);
56 extern void feature_enable_sync(struct spa *, zfeature_info_t *,
58 extern void feature_sync(struct spa *, zfeature_info_t *, uint64_t,
65 #endif /* _SYS_ZFEATURE_H */