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 <sys/txg.h> 31 #include "zfeature_common.h" 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 struct spa; 38 struct dmu_tx; 39 struct objset; 40 41 extern void spa_feature_create_zap_objects(struct spa *, struct dmu_tx *); 42 extern void spa_feature_enable(struct spa *, spa_feature_t, 43 struct dmu_tx *); 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 *); 50 51 /* 52 * These functions are only exported for zhack and zdb; normal callers should 53 * use the above interfaces. 54 */ 55 extern int feature_get_refcount(struct spa *, zfeature_info_t *, uint64_t *); 56 extern void feature_enable_sync(struct spa *, zfeature_info_t *, 57 struct dmu_tx *); 58 extern void feature_sync(struct spa *, zfeature_info_t *, uint64_t, 59 struct dmu_tx *); 60 61 #ifdef __cplusplus 62 } 63 #endif 64 65 #endif /* _SYS_ZFEATURE_H */ 66