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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note *//***************************************************************************************************************************************************************** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.**** This copyrighted material is made available to anyone wishing to use,** modify, copy, or redistribute it subject to the terms and conditions** of the GNU General Public License v.2.***************************************************************************************************************************************************************/
#ifndef _LINUX_DLM_DEVICE_H#define _LINUX_DLM_DEVICE_H
/* This is the device interface for dlm, most users will use a library * interface. */
#include <linux/dlm.h>#include <linux/types.h>
#define DLM_USER_LVB_LEN 32
/* Version of the device interface */#define DLM_DEVICE_VERSION_MAJOR 6#define DLM_DEVICE_VERSION_MINOR 0#define DLM_DEVICE_VERSION_PATCH 2
/* struct passed to the lock write */struct dlm_lock_params { __u8 mode; __u8 namelen; __u16 unused; __u32 flags; __u32 lkid; __u32 parent; __u64 xid; __u64 timeout; void __user *castparam; void __user *castaddr; void __user *bastparam; void __user *bastaddr; struct dlm_lksb __user *lksb; char lvb[DLM_USER_LVB_LEN]; char name[];};
struct dlm_lspace_params { __u32 flags; __u32 minor; char name[];};
struct dlm_purge_params { __u32 nodeid; __u32 pid;};
struct dlm_write_request { __u32 version[3]; __u8 cmd; __u8 is64bit; __u8 unused[2];
union { struct dlm_lock_params lock; struct dlm_lspace_params lspace; struct dlm_purge_params purge; } i;};
struct dlm_device_version { __u32 version[3];};
/* struct read from the "device" fd, consists mainly of userspace pointers for the library to use */
struct dlm_lock_result { __u32 version[3]; __u32 length; void __user * user_astaddr; void __user * user_astparam; struct dlm_lksb __user * user_lksb; struct dlm_lksb lksb; __u8 bast_mode; __u8 unused[3]; /* Offsets may be zero if no data is present */ __u32 lvb_offset;};
/* Commands passed to the device */#define DLM_USER_LOCK 1#define DLM_USER_UNLOCK 2#define DLM_USER_QUERY 3#define DLM_USER_CREATE_LOCKSPACE 4#define DLM_USER_REMOVE_LOCKSPACE 5#define DLM_USER_PURGE 6#define DLM_USER_DEADLOCK 7
/* Lockspace flags */#define DLM_USER_LSFLG_AUTOFREE 1#define DLM_USER_LSFLG_FORCEFREE 2
#endif