release/src-rt-6.x.4708/linux/linux-2.6.36/fs/ocfs2/slot_map.h

   1 /* -*- mode: c; c-basic-offset: 8; -*-
   2  * vim: noexpandtab sw=8 ts=8 sts=0:
   3  *
   4  * slotmap.h
   5  *
   6  * description here
   7  *
   8  * Copyright (C) 2002, 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 SLOTMAP_H
  28 #define SLOTMAP_H
  29
  30 int ocfs2_init_slot_info(struct ocfs2_super *osb);
  31 void ocfs2_free_slot_info(struct ocfs2_super *osb);
  32
  33 int ocfs2_find_slot(struct ocfs2_super *osb);
  34 void ocfs2_put_slot(struct ocfs2_super *osb);
  35
  36 int ocfs2_refresh_slot_info(struct ocfs2_super *osb);
  37
  38 int ocfs2_node_num_to_slot(struct ocfs2_super *osb, unsigned int node_num);
  39 int ocfs2_slot_to_node_num_locked(struct ocfs2_super *osb, int slot_num,
  40                                   unsigned int *node_num);
  41
  42 int ocfs2_clear_slot(struct ocfs2_super *osb, int slot_num);
  43
  44 #endif