xref: /titanic_41/usr/src/uts/sparc/zfs/spa_boot.c (revision 2b24ab6b3865caeede9eeb9db6b83e1d89dcd1ea)
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 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/spa.h>
30 #include <sys/bootconf.h>
31 
32 char *
33 spa_get_bootprop(char *propname)
34 {
35 	int proplen;
36 	char *value;
37 
38 	proplen = BOP_GETPROPLEN(bootops, propname);
39 	if (proplen <= 0)
40 		return (NULL);
41 
42 	value = kmem_zalloc(proplen, KM_SLEEP);
43 	if (BOP_GETPROP(bootops, propname, value) == -1) {
44 		kmem_free(value, proplen);
45 		return (NULL);
46 	}
47 
48 	return (value);
49 }
50 
51 void
52 spa_free_bootprop(char *propname)
53 {
54 	kmem_free(propname, strlen(propname) + 1);
55 }
56