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 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 */
26
27 /*
28 * Copyright (c) 2012 by Delphix. All rights reserved.
29 */
30
31 #include <sys/zio.h>
32 #include <sys/spa.h>
33 #include <sys/bootconf.h>
34
35 extern int zfs_deadman_enabled;
36
37 char *
spa_get_bootprop(char * propname)38 spa_get_bootprop(char *propname)
39 {
40 int proplen;
41 char *value;
42
43 proplen = BOP_GETPROPLEN(bootops, propname);
44 if (proplen <= 0)
45 return (NULL);
46
47 value = kmem_zalloc(proplen, KM_SLEEP);
48 if (BOP_GETPROP(bootops, propname, value) == -1) {
49 kmem_free(value, proplen);
50 return (NULL);
51 }
52
53 return (value);
54 }
55
56 void
spa_free_bootprop(char * propname)57 spa_free_bootprop(char *propname)
58 {
59 kmem_free(propname, strlen(propname) + 1);
60 }
61
62 void
spa_arch_init(void)63 spa_arch_init(void)
64 {
65 /*
66 * The deadman is disabled by default on sparc.
67 */
68 if (zfs_deadman_enabled == -1)
69 zfs_deadman_enabled = 0;
70 }
71