| 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(lock: &sigio_mutex); |
| 22 | } |
| 23 |