1/******************************************************************************
 2*******************************************************************************
 3**
 4**  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
 5**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
 6**
 7**  This copyrighted material is made available to anyone wishing to use,
 8**  modify, copy, or redistribute it subject to the terms and conditions
 9**  of the GNU General Public License v.2.
10**
11*******************************************************************************
12******************************************************************************/
13
14#include <linux/module.h>
15
16#include "dlm_internal.h"
17#include "lockspace.h"
18#include "lock.h"
19#include "user.h"
20#include "memory.h"
21#include "config.h"
22#include "lowcomms.h"
 
 
 
 
 
23
24static int __init init_dlm(void)
25{
26	int error;
27
28	error = dlm_memory_init();
29	if (error)
30		goto out;
31
 
 
32	error = dlm_lockspace_init();
33	if (error)
34		goto out_mem;
35
36	error = dlm_config_init();
37	if (error)
38		goto out_lockspace;
39
40	error = dlm_register_debugfs();
41	if (error)
42		goto out_config;
43
44	error = dlm_user_init();
45	if (error)
46		goto out_debug;
47
48	error = dlm_netlink_init();
49	if (error)
50		goto out_user;
51
52	error = dlm_plock_init();
53	if (error)
54		goto out_netlink;
 
 
55
56	printk("DLM installed\n");
57
58	return 0;
59
60 out_netlink:
61	dlm_netlink_exit();
62 out_user:
63	dlm_user_exit();
64 out_debug:
65	dlm_unregister_debugfs();
66 out_config:
67	dlm_config_exit();
68 out_lockspace:
69	dlm_lockspace_exit();
70 out_mem:
 
71	dlm_memory_exit();
72 out:
73	return error;
74}
75
76static void __exit exit_dlm(void)
77{
 
 
78	dlm_plock_exit();
79	dlm_netlink_exit();
80	dlm_user_exit();
81	dlm_config_exit();
82	dlm_memory_exit();
83	dlm_lockspace_exit();
84	dlm_lowcomms_exit();
85	dlm_unregister_debugfs();
 
86}
87
88module_init(init_dlm);
89module_exit(exit_dlm);
90
91MODULE_DESCRIPTION("Distributed Lock Manager");
92MODULE_AUTHOR("Red Hat, Inc.");
93MODULE_LICENSE("GPL");
94
95EXPORT_SYMBOL_GPL(dlm_new_lockspace);
96EXPORT_SYMBOL_GPL(dlm_release_lockspace);
97EXPORT_SYMBOL_GPL(dlm_lock);
98EXPORT_SYMBOL_GPL(dlm_unlock);
99

  1// SPDX-License-Identifier: GPL-2.0-only
  2/******************************************************************************
  3*******************************************************************************
  4**
  5**  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
  6**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
  7**
 
 
 
  8**
  9*******************************************************************************
 10******************************************************************************/
 11
 12#include <linux/module.h>
 13
 14#include "dlm_internal.h"
 15#include "lockspace.h"
 16#include "lock.h"
 17#include "user.h"
 18#include "memory.h"
 19#include "config.h"
 20#include "midcomms.h"
 21
 22#define CREATE_TRACE_POINTS
 23#include <trace/events/dlm.h>
 24
 25struct workqueue_struct *dlm_wq;
 26
 27static int __init init_dlm(void)
 28{
 29	int error;
 30
 31	error = dlm_memory_init();
 32	if (error)
 33		goto out;
 34
 35	dlm_midcomms_init();
 36
 37	error = dlm_lockspace_init();
 38	if (error)
 39		goto out_mem;
 40
 41	error = dlm_config_init();
 42	if (error)
 43		goto out_lockspace;
 44
 45	dlm_register_debugfs();
 
 
 46
 47	error = dlm_user_init();
 48	if (error)
 49		goto out_debug;
 50
 51	error = dlm_plock_init();
 52	if (error)
 53		goto out_user;
 54
 55	dlm_wq = alloc_workqueue("dlm_wq", 0, 0);
 56	if (!dlm_wq) {
 57		error = -ENOMEM;
 58		goto out_plock;
 59	}
 60
 61	printk("DLM installed\n");
 62
 63	return 0;
 64
 65 out_plock:
 66	dlm_plock_exit();
 67 out_user:
 68	dlm_user_exit();
 69 out_debug:
 70	dlm_unregister_debugfs();
 
 71	dlm_config_exit();
 72 out_lockspace:
 73	dlm_lockspace_exit();
 74 out_mem:
 75	dlm_midcomms_exit();
 76	dlm_memory_exit();
 77 out:
 78	return error;
 79}
 80
 81static void __exit exit_dlm(void)
 82{
 83	/* be sure every pending work e.g. freeing is done */
 84	destroy_workqueue(dlm_wq);
 85	dlm_plock_exit();
 
 86	dlm_user_exit();
 87	dlm_config_exit();
 
 88	dlm_lockspace_exit();
 89	dlm_midcomms_exit();
 90	dlm_unregister_debugfs();
 91	dlm_memory_exit();
 92}
 93
 94module_init(init_dlm);
 95module_exit(exit_dlm);
 96
 97MODULE_DESCRIPTION("Distributed Lock Manager");
 98MODULE_AUTHOR("Red Hat, Inc.");
 99MODULE_LICENSE("GPL");
100
101EXPORT_SYMBOL_GPL(dlm_new_lockspace);
102EXPORT_SYMBOL_GPL(dlm_release_lockspace);
103EXPORT_SYMBOL_GPL(dlm_lock);
104EXPORT_SYMBOL_GPL(dlm_unlock);
105