blob: 2dd21243104ffd72dff12fb7cfa70d1b77de0f69 [file] [log] [blame]
David Teigland24022112008-03-14 15:09:15 -05001/*
2 * Copyright (C) 2005-2008 Red Hat, Inc. All rights reserved.
3 *
4 * This copyrighted material is made available to anyone wishing to use,
5 * modify, copy, or redistribute it subject to the terms and conditions
6 * of the GNU General Public License v.2.
7 */
8
9#ifndef __DLM_PLOCK_DOT_H__
10#define __DLM_PLOCK_DOT_H__
11
Jaswinder Singh Rajput37eb1f42009-01-30 20:51:30 +053012#include <linux/types.h>
13
David Teigland24022112008-03-14 15:09:15 -050014#define DLM_PLOCK_MISC_NAME "dlm_plock"
15
16#define DLM_PLOCK_VERSION_MAJOR 1
17#define DLM_PLOCK_VERSION_MINOR 1
18#define DLM_PLOCK_VERSION_PATCH 0
19
20enum {
21 DLM_PLOCK_OP_LOCK = 1,
22 DLM_PLOCK_OP_UNLOCK,
23 DLM_PLOCK_OP_GET,
24};
25
26struct dlm_plock_info {
27 __u32 version[3];
28 __u8 optype;
29 __u8 ex;
30 __u8 wait;
31 __u8 pad;
32 __u32 pid;
33 __s32 nodeid;
34 __s32 rv;
35 __u32 fsid;
36 __u64 number;
37 __u64 start;
38 __u64 end;
39 __u64 owner;
40};
41
42#ifdef __KERNEL__
43int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
44 int cmd, struct file_lock *fl);
45int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
46 struct file_lock *fl);
47int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
48 struct file_lock *fl);
49#endif /* __KERNEL__ */
50
51#endif
52