sigio.c

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com)
 4 */
 5
 6#include <linux/interrupt.h>
 7#include <irq_kern.h>
 8#include <os.h>
 9#include <sigio.h>
10
11/* These are called from os-Linux/sigio.c to protect its pollfds arrays. */
12static DEFINE_MUTEX(sigio_mutex);
13
14void sigio_lock(void)
15{
16	mutex_lock(&sigio_mutex);
17}
18
19void sigio_unlock(void)
20{
21	mutex_unlock(&sigio_mutex);
22}