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 * 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 57 spa_free_bootprop(char *propname) 58 { 59 kmem_free(propname, strlen(propname) + 1); 60 } 61 62 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