OpenCloudOS-Kernel/lib/bust_spinlocks.c

30 lines
632 B
C

// 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();
}
}