fs/ocfs2/cluster/nodemanager.h

   1 /* -*- mode: c; c-basic-offset: 8; -*-
   2  * vim: noexpandtab sw=8 ts=8 sts=0:
   3  *
   4  * nodemanager.h
   5  *
   6  * Function prototypes
   7  *
   8  * Copyright (C) 2004 Oracle.  All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2 of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public
  21  * License along with this program; if not, write to the
  22  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  23  * Boston, MA 021110-1307, USA.
  24  *
  25  */
  26
  27 #ifndef O2CLUSTER_NODEMANAGER_H
  28 #define O2CLUSTER_NODEMANAGER_H
  29
  30 #include "ocfs2_nodemanager.h"
  31
  32 /* This totally doesn't belong here. */
  33 #include <linux/configfs.h>
  34 #include <linux/rbtree.h>
  35
  36 #define KERN_OCFS2              988
  37 #define KERN_OCFS2_NM           1
  38
  39 const char *o2nm_get_hb_ctl_path(void);
  40
  41 struct o2nm_node {
  42         spinlock_t              nd_lock;
  43         struct config_item      nd_item;
  44         char                    nd_name[O2NM_MAX_NAME_LEN+1]; /* replace? */
  45         __u8                    nd_num;
  46         /* only one address per node, as attributes, for now. */
  47         __be32                  nd_ipv4_address;
  48         __be16                  nd_ipv4_port;
  49         struct rb_node          nd_ip_node;
  50         /* there can be only one local node for now */
  51         int                     nd_local;
  52
  53         unsigned long           nd_set_attributes;
  54 };
  55
  56 u8 o2nm_this_node(void);
  57
  58 int o2nm_configured_node_map(unsigned long *map, unsigned bytes);
  59 struct o2nm_node *o2nm_get_node_by_num(u8 node_num);
  60 struct o2nm_node *o2nm_get_node_by_ip(__be32 addr);
  61 void o2nm_node_get(struct o2nm_node *node);
  62 void o2nm_node_put(struct o2nm_node *node);
  63
  64 #endif /* O2CLUSTER_NODEMANAGER_H */