fs/ocfs2/cluster/ocfs2_nodemanager.h

   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 */