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