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git.ipfire.org Git - thirdparty/linux.git/blob - include/uapi/linux/dlm_device.h
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /******************************************************************************
3 *******************************************************************************
5 ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
6 ** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
8 ** This copyrighted material is made available to anyone wishing to use,
9 ** modify, copy, or redistribute it subject to the terms and conditions
10 ** of the GNU General Public License v.2.
12 *******************************************************************************
13 ******************************************************************************/
15 #ifndef _LINUX_DLM_DEVICE_H
16 #define _LINUX_DLM_DEVICE_H
18 /* This is the device interface for dlm, most users will use a library
22 #include <linux/dlm.h>
23 #include <linux/types.h>
25 #define DLM_USER_LVB_LEN 32
27 /* Version of the device interface */
28 #define DLM_DEVICE_VERSION_MAJOR 6
29 #define DLM_DEVICE_VERSION_MINOR 0
30 #define DLM_DEVICE_VERSION_PATCH 2
32 /* struct passed to the lock write */
33 struct dlm_lock_params
{
42 void __user
*castparam
;
43 void __user
*castaddr
;
44 void __user
*bastparam
;
45 void __user
*bastaddr
;
46 struct dlm_lksb __user
*lksb
;
47 char lvb
[DLM_USER_LVB_LEN
];
51 struct dlm_lspace_params
{
57 struct dlm_purge_params
{
62 struct dlm_write_request
{
69 struct dlm_lock_params lock
;
70 struct dlm_lspace_params lspace
;
71 struct dlm_purge_params purge
;
75 struct dlm_device_version
{
79 /* struct read from the "device" fd,
80 consists mainly of userspace pointers for the library to use */
82 struct dlm_lock_result
{
85 void __user
* user_astaddr
;
86 void __user
* user_astparam
;
87 struct dlm_lksb __user
* user_lksb
;
91 /* Offsets may be zero if no data is present */
95 /* Commands passed to the device */
96 #define DLM_USER_LOCK 1
97 #define DLM_USER_UNLOCK 2
98 #define DLM_USER_QUERY 3
99 #define DLM_USER_CREATE_LOCKSPACE 4
100 #define DLM_USER_REMOVE_LOCKSPACE 5
101 #define DLM_USER_PURGE 6
102 #define DLM_USER_DEADLOCK 7
104 /* Lockspace flags */
105 #define DLM_USER_LSFLG_AUTOFREE 1
106 #define DLM_USER_LSFLG_FORCEFREE 2