1 /* -*- mode: c; c-basic-offset: 8; -*-
2  * vim: noexpandtab sw=8 ts=8 sts=0:
3  *
4  * ocfs2_nodemanager.h
5  *
6  * Header describing the interface between userspace and the kernel
7  * for the ocfs2_nodemanager module.
8  *
9  * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public
13  * License as published by the Free Software Foundation; either
14  * version 2 of the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
19  * General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public
22  * License along with this program; if not, write to the
23  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
24  * Boston, MA 021110-1307, USA.
25  *
26  */
27 
28 #ifndef _OCFS2_NODEMANAGER_H
29 #define _OCFS2_NODEMANAGER_H
30 
31 #define O2NM_API_VERSION	5
32 
33 #define O2NM_MAX_NODES		255
34 #define O2NM_INVALID_NODE_NUM	255
35 
36 /* host name, group name, cluster name all 64 bytes */
37 #define O2NM_MAX_NAME_LEN        64    // __NEW_UTS_LEN
38 
39 /*
40  * Maximum number of global heartbeat regions allowed.
41  * **CAUTION**  Changing this number will break dlm compatibility.
42  */
43 #define O2NM_MAX_REGIONS	32
44 
45 #endif /* _OCFS2_NODEMANAGER_H */
46