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 "lowcomms.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         error = dlm_lockspace_init();
  34         if (error)
  35                 goto out_mem;
  36
  37         error = dlm_config_init();
  38         if (error)
  39                 goto out_lockspace;
  40
  41         dlm_register_debugfs();
  42
  43         error = dlm_user_init();
  44         if (error)
  45                 goto out_debug;
  46
  47         error = dlm_netlink_init();
  48         if (error)
  49                 goto out_user;
  50
  51         error = dlm_plock_init();
  52         if (error)
  53                 goto out_netlink;
  54
  55         printk("DLM installed\n");
  56
  57         return 0;
  58
  59  out_netlink:
  60         dlm_netlink_exit();
  61  out_user:
  62         dlm_user_exit();
  63  out_debug:
  64         dlm_unregister_debugfs();
  65         dlm_config_exit();
  66  out_lockspace:
  67         dlm_lockspace_exit();
  68  out_mem:
  69         dlm_memory_exit();
  70  out:
  71         return error;
  72 }
  73
  74 static void __exit exit_dlm(void)
  75 {
  76         dlm_plock_exit();
  77         dlm_netlink_exit();
  78         dlm_user_exit();
  79         dlm_config_exit();
  80         dlm_memory_exit();
  81         dlm_lockspace_exit();
  82         dlm_lowcomms_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