blob: bfd53972a4d895fc8596b15b180722b9feebe72c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
|
// SPDX-License-Identifier: GPL-2.0
/*
* lib/bust_spinlocks.c
*
* Provides a minimal bust_spinlocks for architectures which don't
* have one of their own.
*
* bust_spinlocks() clears any spinlocks which would prevent oops, die(), BUG()
* and panic() information from reaching the user.
*/
#include <linux/kernel.h>
#include <linux/printk.h>
#include <linux/spinlock.h>
#include <linux/tty.h>
#include <linux/wait.h>
#include <linux/vt_kern.h>
#include <linux/console.h>
void bust_spinlocks(int yes)
{
if (yes) {
++oops_in_progress;
} else {
console_unblank();
if (--oops_in_progress == 0)
wake_up_klogd();
}
}
|
