Mercurial > illumos > illumos-gate
view usr/src/uts/intel/zfs/spa_boot.c @ 13869:921a99998bb4
3246 ZFS I/O deadman thread
Reviewed by: Matt Ahrens <matthew.ahrens@delphix.com>
Reviewed by: Eric Schrock <eric.schrock@delphix.com>
Reviewed by: Christopher Siden <chris.siden@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>
author | George.Wilson <george.wilson@delphix.com> |
---|---|
date | Mon, 29 Oct 2012 12:08:09 -0500 |
parents | e2081f502306 |
children |
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/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* * Copyright (c) 2012 by Delphix. All rights reserved. */ #include <sys/zio.h> #include <sys/spa.h> #include <sys/sunddi.h> #include <sys/x86_archext.h> extern int zfs_deadman_enabled; char * spa_get_bootprop(char *propname) { char *value; if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), DDI_PROP_DONTPASS, propname, &value) != DDI_SUCCESS) return (NULL); return (value); } void spa_free_bootprop(char *value) { ddi_prop_free(value); } void spa_arch_init(void) { /* * Configure the default settings for the zfs deadman unless * overriden by /etc/system. */ if (zfs_deadman_enabled == -1) { /* * Disable the zfs deadman logic on VMware deployments. */ if (get_hwenv() == HW_VMWARE) zfs_deadman_enabled = 0; else zfs_deadman_enabled = 1; } }