1e7cbe64fSgw /* 2e7cbe64fSgw * CDDL HEADER START 3e7cbe64fSgw * 4e7cbe64fSgw * The contents of this file are subject to the terms of the 5e7cbe64fSgw * Common Development and Distribution License (the "License"). 6e7cbe64fSgw * You may not use this file except in compliance with the License. 7e7cbe64fSgw * 8e7cbe64fSgw * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9e7cbe64fSgw * or http://www.opensolaris.org/os/licensing. 10e7cbe64fSgw * See the License for the specific language governing permissions 11e7cbe64fSgw * and limitations under the License. 12e7cbe64fSgw * 13e7cbe64fSgw * When distributing Covered Code, include this CDDL HEADER in each 14e7cbe64fSgw * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15e7cbe64fSgw * If applicable, add the following below this CDDL HEADER, with the 16e7cbe64fSgw * fields enclosed by brackets "[]" replaced with your own identifying 17e7cbe64fSgw * information: Portions Copyright [yyyy] [name of copyright owner] 18e7cbe64fSgw * 19e7cbe64fSgw * CDDL HEADER END 20e7cbe64fSgw */ 21e7cbe64fSgw 22e7cbe64fSgw /* 23b24ab676SJeff Bonwick * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24e7cbe64fSgw * Use is subject to license terms. 25e7cbe64fSgw */ 26e7cbe64fSgw 27283b8460SGeorge.Wilson /* 28283b8460SGeorge.Wilson * Copyright (c) 2012 by Delphix. All rights reserved. 29*30c304d9SJoshua M. Clulow * Copyright 2020 Joshua M. Clulow <josh@sysmgr.org> 30283b8460SGeorge.Wilson */ 31283b8460SGeorge.Wilson 32b24ab676SJeff Bonwick #include <sys/zio.h> 33e7cbe64fSgw #include <sys/spa.h> 34e7cbe64fSgw #include <sys/bootconf.h> 35e7cbe64fSgw 36283b8460SGeorge.Wilson extern int zfs_deadman_enabled; 37283b8460SGeorge.Wilson 38e7cbe64fSgw char * 39*30c304d9SJoshua M. Clulow spa_get_bootprop(const char *propname) 40e7cbe64fSgw { 41e7cbe64fSgw int proplen; 42051aabe6Staylor char *value; 43e7cbe64fSgw 44051aabe6Staylor proplen = BOP_GETPROPLEN(bootops, propname); 45051aabe6Staylor if (proplen <= 0) 46e7cbe64fSgw return (NULL); 47e7cbe64fSgw 48051aabe6Staylor value = kmem_zalloc(proplen, KM_SLEEP); 49051aabe6Staylor if (BOP_GETPROP(bootops, propname, value) == -1) { 50051aabe6Staylor kmem_free(value, proplen); 51e7cbe64fSgw return (NULL); 52e7cbe64fSgw } 53e7cbe64fSgw 54051aabe6Staylor return (value); 55e7cbe64fSgw } 56e7cbe64fSgw 57e7cbe64fSgw void 58*30c304d9SJoshua M. Clulow spa_free_bootprop(char *propval) 59e7cbe64fSgw { 60*30c304d9SJoshua M. Clulow if (propval == NULL) { 61*30c304d9SJoshua M. Clulow return; 62*30c304d9SJoshua M. Clulow } 63*30c304d9SJoshua M. Clulow 64*30c304d9SJoshua M. Clulow kmem_free(propval, strlen(propval) + 1); 65e7cbe64fSgw } 66283b8460SGeorge.Wilson 67283b8460SGeorge.Wilson void 68283b8460SGeorge.Wilson spa_arch_init(void) 69283b8460SGeorge.Wilson { 70283b8460SGeorge.Wilson /* 71283b8460SGeorge.Wilson * The deadman is disabled by default on sparc. 72283b8460SGeorge.Wilson */ 73283b8460SGeorge.Wilson if (zfs_deadman_enabled == -1) 74283b8460SGeorge.Wilson zfs_deadman_enabled = 0; 75283b8460SGeorge.Wilson } 76