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