1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright 2023 Red Hat
4 */
5
6#include "thread-device.h"
7
8/* A registry of threads associated with device id numbers. */
9static struct thread_registry device_id_thread_registry;
10
11/* Any registered thread must be unregistered. */
12void vdo_register_thread_device_id(struct registered_thread *new_thread,
13				   unsigned int *id_ptr)
14{
15	vdo_register_thread(&device_id_thread_registry, new_thread, id_ptr);
16}
17
18void vdo_unregister_thread_device_id(void)
19{
20	vdo_unregister_thread(&device_id_thread_registry);
21}
22
23int vdo_get_thread_device_id(void)
24{
25	const unsigned int *pointer;
26
27	pointer = vdo_lookup_thread(&device_id_thread_registry);
28	return (pointer != NULL) ? *pointer : -1;
29}
30
31void vdo_initialize_thread_device_registry(void)
32{
33	vdo_initialize_thread_registry(&device_id_thread_registry);
34}
35