fs/dlm/main.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /******************************************************************************
   3 *******************************************************************************
   4 **
   5 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
   6 **  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
   7 **
   8 **
   9 *******************************************************************************
  10 ******************************************************************************/
  11
  12 #include <linux/module.h>
  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 #include "midcomms.h"
  21
  22 #define CREATE_TRACE_POINTS
  23 #include <trace/events/dlm.h>
  24
  25 static int __init init_dlm(void)
  26 {
  27         int error;
  28
  29         error = dlm_memory_init();
  30         if (error)
  31                 goto out;
  32
  33         dlm_midcomms_init();
  34
  35         error = dlm_lockspace_init();
  36         if (error)
  37                 goto out_mem;
  38
  39         error = dlm_config_init();
  40         if (error)
  41                 goto out_lockspace;
  42
  43         dlm_register_debugfs();
  44
  45         error = dlm_user_init();
  46         if (error)
  47                 goto out_debug;
  48
  49         error = dlm_plock_init();
  50         if (error)
  51                 goto out_user;
  52
  53         printk("DLM installed\n");
  54
  55         return 0;
  56
  57  out_user:
  58         dlm_user_exit();
  59  out_debug:
  60         dlm_unregister_debugfs();
  61         dlm_config_exit();
  62  out_lockspace:
  63         dlm_lockspace_exit();
  64  out_mem:
  65         dlm_midcomms_exit();
  66         dlm_memory_exit();
  67  out:
  68         return error;
  69 }
  70
  71 static void __exit exit_dlm(void)
  72 {
  73         dlm_plock_exit();
  74         dlm_user_exit();
  75         dlm_config_exit();
  76         dlm_memory_exit();
  77         dlm_lockspace_exit();
  78         dlm_midcomms_exit();
  79         dlm_unregister_debugfs();
  80 }
  81
  82 module_init(init_dlm);
  83 module_exit(exit_dlm);
  84
  85 MODULE_DESCRIPTION("Distributed Lock Manager");
  86 MODULE_AUTHOR("Red Hat, Inc.");
  87 MODULE_LICENSE("GPL");
  88
  89 EXPORT_SYMBOL_GPL(dlm_new_lockspace);
  90 EXPORT_SYMBOL_GPL(dlm_release_lockspace);
  91 EXPORT_SYMBOL_GPL(dlm_lock);
  92 EXPORT_SYMBOL_GPL(dlm_unlock);
  93