LXR linux/fs/ocfs2/cluster/ocfs2

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/* -*- mode: c; c-basic-offset: 8; -*-
   3 * vim: noexpandtab sw=8 ts=8 sts=0:
   4 *
   5 * ocfs2_nodemanager.h
   6 *
   7 * Header describing the interface between userspace and the kernel
   8 * for the ocfs2_nodemanager module.
   9 *
  10 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
  11 */
  12
  13#ifndef _OCFS2_NODEMANAGER_H
  14#define _OCFS2_NODEMANAGER_H
  15
  16#define O2NM_API_VERSION        5
  17
  18#define O2NM_MAX_NODES          255
  19#define O2NM_INVALID_NODE_NUM   255
  20
  21/* host name, group name, cluster name all 64 bytes */
  22#define O2NM_MAX_NAME_LEN        64    // __NEW_UTS_LEN
  23
  24/*
  25 * Maximum number of global heartbeat regions allowed.
  26 * **CAUTION**  Changing this number will break dlm compatibility.
  27 */
  28#define O2NM_MAX_REGIONS        32
  29
  30#endif /* _OCFS2_NODEMANAGER_H */
  31