xref: /linux/fs/ocfs2/slot_map.h (revision fd639726bf15fca8ee1a00dce8e0096d0ad9bd18)
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
45