release/src-rt-6.x/linux/linux-2.6/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 "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
  29 static int __init init_dlm(void)
  30 {
  31         int error;
  32
  33         error = dlm_memory_init();
  34         if (error)
  35                 goto out;
  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         error = dlm_register_debugfs();
  46         if (error)
  47                 goto out_config;
  48
  49         error = dlm_user_init();
  50         if (error)
  51                 goto out_debug;
  52
  53         printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
  54
  55         return 0;
  56
  57  out_debug:
  58         dlm_unregister_debugfs();
  59  out_config:
  60         dlm_config_exit();
  61  out_lockspace:
  62         dlm_lockspace_exit();
  63  out_mem:
  64         dlm_memory_exit();
  65  out:
  66         return error;
  67 }
  68
  69 static void __exit exit_dlm(void)
  70 {
  71         dlm_user_exit();
  72         dlm_config_exit();
  73         dlm_memory_exit();
  74         dlm_lockspace_exit();
  75         dlm_unregister_debugfs();
  76 }
  77
  78 module_init(init_dlm);
  79 module_exit(exit_dlm);
  80
  81 MODULE_DESCRIPTION("Distributed Lock Manager");
  82 MODULE_AUTHOR("Red Hat, Inc.");
  83 MODULE_LICENSE("GPL");
  84
  85 EXPORT_SYMBOL_GPL(dlm_new_lockspace);
  86 EXPORT_SYMBOL_GPL(dlm_release_lockspace);
  87 EXPORT_SYMBOL_GPL(dlm_lock);
  88 EXPORT_SYMBOL_GPL(dlm_unlock);
  89