// 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(); | |
} | |
} |