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. */
12 static DEFINE_MUTEX(sigio_mutex);
13 
14 void sigio_lock(void)
15 {
16 	mutex_lock(&sigio_mutex);
17 }
18 
19 void sigio_unlock(void)
20 {
21 	mutex_unlock(&sigio_mutex);
22 }
23