[DLM] dlm: user locks
[linux-2.6.git] / fs / dlm / main.c
1 /******************************************************************************
2 *******************************************************************************
3 **
4 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
5 **  Copyright (C) 2004-2005 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 "dlm_internal.h"
15 #include "lockspace.h"
16 #include "lock.h"
17 #include "user.h"
18 #include "memory.h"
19 #include "lowcomms.h"
20 #include "config.h"
21
22 #ifdef CONFIG_DLM_DEBUG
23 int dlm_register_debugfs(void);
24 void dlm_unregister_debugfs(void);
25 #else
26 static inline int dlm_register_debugfs(void) { return 0; }
27 static inline void dlm_unregister_debugfs(void) { }
28 #endif
29
30 static int __init init_dlm(void)
31 {
32         int error;
33
34         error = dlm_memory_init();
35         if (error)
36                 goto out;
37
38         error = dlm_lockspace_init();
39         if (error)
40                 goto out_mem;
41
42         error = dlm_config_init();
43         if (error)
44                 goto out_lockspace;
45
46         error = dlm_register_debugfs();
47         if (error)
48                 goto out_config;
49
50         error = dlm_lowcomms_init();
51         if (error)
52                 goto out_debug;
53
54         error = dlm_user_init();
55         if (error)
56                 goto out_lowcomms;
57
58         printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
59
60         return 0;
61
62  out_lowcomms:
63         dlm_lowcomms_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
76 static void __exit exit_dlm(void)
77 {
78         dlm_user_exit();
79         dlm_lowcomms_exit();
80         dlm_config_exit();
81         dlm_memory_exit();
82         dlm_lockspace_exit();
83         dlm_unregister_debugfs();
84 }
85
86 module_init(init_dlm);
87 module_exit(exit_dlm);
88
89 MODULE_DESCRIPTION("Distributed Lock Manager");
90 MODULE_AUTHOR("Red Hat, Inc.");
91 MODULE_LICENSE("GPL");
92
93 EXPORT_SYMBOL_GPL(dlm_new_lockspace);
94 EXPORT_SYMBOL_GPL(dlm_release_lockspace);
95 EXPORT_SYMBOL_GPL(dlm_lock);
96 EXPORT_SYMBOL_GPL(dlm_unlock);
97