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ea2034416b
Adds new dlm message DLM_QUERY_REGION that sends the names of all active heartbeat regions. This message is only sent in the global heartbeat mode. If the regions in the joining node do not fully match the ones in the active nodes, the join domain request is rejected. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* ocfs2_nodemanager.h
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*
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* Header describing the interface between userspace and the kernel
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* for the ocfs2_nodemanager module.
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*
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* Copyright (C) 2002, 2004 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*
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*/
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#ifndef _OCFS2_NODEMANAGER_H
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#define _OCFS2_NODEMANAGER_H
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#define O2NM_API_VERSION 5
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#define O2NM_MAX_NODES 255
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#define O2NM_INVALID_NODE_NUM 255
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/* host name, group name, cluster name all 64 bytes */
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#define O2NM_MAX_NAME_LEN 64 // __NEW_UTS_LEN
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/*
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* Maximum number of global heartbeat regions allowed.
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* **CAUTION** Changing this number will break dlm compatibility.
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*/
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#define O2NM_MAX_REGIONS 32
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#endif /* _OCFS2_NODEMANAGER_H */
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