ocfs2_nodemanager.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * ocfs2_nodemanager.h
 4 *
 5 * Header describing the interface between userspace and the kernel
 6 * for the ocfs2_nodemanager module.
 7 *
 8 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
 9 */
10
11#ifndef _OCFS2_NODEMANAGER_H
12#define _OCFS2_NODEMANAGER_H
13
14#define O2NM_API_VERSION	5
15
16#define O2NM_MAX_NODES		255
17#define O2NM_INVALID_NODE_NUM	255
18
19/* host name, group name, cluster name all 64 bytes */
20#define O2NM_MAX_NAME_LEN        64    // __NEW_UTS_LEN
21
22/*
23 * Maximum number of global heartbeat regions allowed.
24 * **CAUTION**  Changing this number will break dlm compatibility.
25 */
26#define O2NM_MAX_REGIONS	32
27
28#endif /* _OCFS2_NODEMANAGER_H */