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) 2012 by Delphix. All rights reserved.
24 * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
25 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
28 #ifndef _ZFEATURE_COMMON_H
29 #define _ZFEATURE_COMMON_H
31 #include <sys/fs/zfs.h>
32 #include <sys/types.h>
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 */
49 typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg);
51 #define ZFS_FEATURE_DEBUG
53 static enum spa_feature {
54 SPA_FEATURE_ASYNC_DESTROY,
55 SPA_FEATURE_EMPTY_BPOBJ,
56 SPA_FEATURE_LZ4_COMPRESS,
57 SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
61 extern zfeature_info_t spa_feature_table[SPA_FEATURES];
63 extern boolean_t zfeature_is_valid_guid(const char *);
65 extern boolean_t zfeature_is_supported(const char *);
66 extern int zfeature_lookup_guid(const char *, zfeature_info_t **res);
67 extern int zfeature_lookup_name(const char *, zfeature_info_t **res);
69 extern void zpool_feature_init(void);
75 #endif /* _ZFEATURE_COMMON_H */