[DLM] add lock timeouts and warnings [2/6]
[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) 2004-2007 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 "dlm_internal.h"
15 #include "lockspace.h"
16 #include "lock.h"
17 #include "user.h"
18 #include "memory.h"
19 #include "config.h"
20
21 #ifdef CONFIG_DLM_DEBUG
22 int dlm_register_debugfs(void);
23 void dlm_unregister_debugfs(void);
24 #else
25 static inline int dlm_register_debugfs(void) { return 0; }
26 static inline void dlm_unregister_debugfs(void) { }
27 #endif
28 int dlm_netlink_init(void);
29 void dlm_netlink_exit(void);
30
31 static int __init init_dlm(void)
32 {
33         int error;
34
35         error = dlm_memory_init();
36         if (error)
37                 goto out;
38
39         error = dlm_lockspace_init();
40         if (error)
41                 goto out_mem;
42
43         error = dlm_config_init();
44         if (error)
45                 goto out_lockspace;
46
47         error = dlm_register_debugfs();
48         if (error)
49                 goto out_config;
50
51         error = dlm_user_init();
52         if (error)
53                 goto out_debug;
54
55         error = dlm_netlink_init();
56         if (error)
57                 goto out_user;
58
59         printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
60
61         return 0;
62
63  out_user:
64         dlm_user_exit();
65  out_debug:
66         dlm_unregister_debugfs();
67  out_config:
68         dlm_config_exit();
69  out_lockspace:
70         dlm_lockspace_exit();
71  out_mem:
72         dlm_memory_exit();
73  out:
74         return error;
75 }
76
77 static void __exit exit_dlm(void)
78 {
79         dlm_netlink_exit();
80         dlm_user_exit();
81         dlm_config_exit();
82         dlm_memory_exit();
83         dlm_lockspace_exit();
84         dlm_unregister_debugfs();
85 }
86
87 module_init(init_dlm);
88 module_exit(exit_dlm);
89
90 MODULE_DESCRIPTION("Distributed Lock Manager");
91 MODULE_AUTHOR("Red Hat, Inc.");
92 MODULE_LICENSE("GPL");
93
94 EXPORT_SYMBOL_GPL(dlm_new_lockspace);
95 EXPORT_SYMBOL_GPL(dlm_release_lockspace);
96 EXPORT_SYMBOL_GPL(dlm_lock);
97 EXPORT_SYMBOL_GPL(dlm_unlock);
98