forked from Minki/linux
e7fd41792f
This is the core of the distributed lock manager which is required to use GFS2 as a cluster filesystem. It is also used by CLVM and can be used as a standalone lock manager independantly of either of these two projects. It implements VAX-style locking modes. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steve Whitehouse <swhiteho@redhat.com>
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/******************************************************************************
|
|
*******************************************************************************
|
|
**
|
|
** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
|
** Copyright (C) 2004-2005 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.
|
|
**
|
|
*******************************************************************************
|
|
******************************************************************************/
|
|
|
|
#include "dlm_internal.h"
|
|
#include "lockspace.h"
|
|
#include "lock.h"
|
|
#include "memory.h"
|
|
#include "lowcomms.h"
|
|
#include "config.h"
|
|
|
|
#ifdef CONFIG_DLM_DEBUG
|
|
int dlm_register_debugfs(void);
|
|
void dlm_unregister_debugfs(void);
|
|
#else
|
|
static inline int dlm_register_debugfs(void) { return 0; }
|
|
static inline void dlm_unregister_debugfs(void) { }
|
|
#endif
|
|
|
|
static int __init init_dlm(void)
|
|
{
|
|
int error;
|
|
|
|
error = dlm_memory_init();
|
|
if (error)
|
|
goto out;
|
|
|
|
error = dlm_lockspace_init();
|
|
if (error)
|
|
goto out_mem;
|
|
|
|
error = dlm_config_init();
|
|
if (error)
|
|
goto out_lockspace;
|
|
|
|
error = dlm_register_debugfs();
|
|
if (error)
|
|
goto out_config;
|
|
|
|
error = dlm_lowcomms_init();
|
|
if (error)
|
|
goto out_debug;
|
|
|
|
printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
|
|
|
|
return 0;
|
|
|
|
out_debug:
|
|
dlm_unregister_debugfs();
|
|
out_config:
|
|
dlm_config_exit();
|
|
out_lockspace:
|
|
dlm_lockspace_exit();
|
|
out_mem:
|
|
dlm_memory_exit();
|
|
out:
|
|
return error;
|
|
}
|
|
|
|
static void __exit exit_dlm(void)
|
|
{
|
|
dlm_lowcomms_exit();
|
|
dlm_config_exit();
|
|
dlm_memory_exit();
|
|
dlm_lockspace_exit();
|
|
dlm_unregister_debugfs();
|
|
}
|
|
|
|
module_init(init_dlm);
|
|
module_exit(exit_dlm);
|
|
|
|
MODULE_DESCRIPTION("Distributed Lock Manager");
|
|
MODULE_AUTHOR("Red Hat, Inc.");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
EXPORT_SYMBOL_GPL(dlm_new_lockspace);
|
|
EXPORT_SYMBOL_GPL(dlm_release_lockspace);
|
|
EXPORT_SYMBOL_GPL(dlm_lock);
|
|
EXPORT_SYMBOL_GPL(dlm_unlock);
|
|
|