config/dracut/90zfs: handle cases where hostid(1) returns all zeros
[zfs.git] / include / os / linux / spl / sys / systeminfo.h
blobd4037a0900d0cef41583850f6eb3317f70b48843
1 /*
2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3 * Copyright (C) 2007 The Regents of the University of California.
4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
6 * UCRL-CODE-235197
8 * This file is part of the SPL, Solaris Porting Layer.
10 * The SPL is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
15 * The SPL is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 * for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
24 #ifndef _SPL_SYSTEMINFO_H
25 #define _SPL_SYSTEMINFO_H
27 #define HW_HOSTID_LEN 11 /* minimum buffer size needed */
28 /* to hold a decimal or hex */
29 /* hostid string */
31 /* Supplemental definitions for Linux. */
32 #define HW_HOSTID_PATH "/etc/hostid" /* binary configuration file */
33 #define HW_HOSTID_MASK 0xFFFFFFFF /* significant hostid bits */
35 #endif /* SPL_SYSTEMINFO_H */