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-rw-r--r--include/linux/dlm_plock.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/include/linux/dlm_plock.h b/include/linux/dlm_plock.h
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+++ b/include/linux/dlm_plock.h
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1/*
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
12#define DLM_PLOCK_MISC_NAME "dlm_plock"
13
14#define DLM_PLOCK_VERSION_MAJOR 1
15#define DLM_PLOCK_VERSION_MINOR 1
16#define DLM_PLOCK_VERSION_PATCH 0
17
18enum {
19 DLM_PLOCK_OP_LOCK = 1,
20 DLM_PLOCK_OP_UNLOCK,
21 DLM_PLOCK_OP_GET,
22};
23
24struct dlm_plock_info {
25 __u32 version[3];
26 __u8 optype;
27 __u8 ex;
28 __u8 wait;
29 __u8 pad;
30 __u32 pid;
31 __s32 nodeid;
32 __s32 rv;
33 __u32 fsid;
34 __u64 number;
35 __u64 start;
36 __u64 end;
37 __u64 owner;
38};
39
40#ifdef __KERNEL__
41int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
42 int cmd, struct file_lock *fl);
43int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
44 struct file_lock *fl);
45int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
46 struct file_lock *fl);
47#endif /* __KERNEL__ */
48
49#endif
50