usb: vstusb.c : new driver for spectrometers used by Vernier Software & Technology...
[linux-2.6] / include / linux / dlm_plock.h
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
18 enum {
19         DLM_PLOCK_OP_LOCK = 1,
20         DLM_PLOCK_OP_UNLOCK,
21         DLM_PLOCK_OP_GET,
22 };
23
24 struct 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__
41 int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
42                 int cmd, struct file_lock *fl);
43 int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
44                 struct file_lock *fl);
45 int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
46                 struct file_lock *fl);
47 #endif /* __KERNEL__ */
48
49 #endif
50