Cregit: Linux 5.13: bust

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Linus Torvalds	43	67.19%	1	14.29%
Viktor Rosendahl	6	9.38%	1	14.29%
Jan Beulich	6	9.38%	1	14.29%
Frédéric Weisbecker	3	4.69%	1	14.29%
Sergey Senozhatsky	3	4.69%	1	14.29%
Kirill Korotaev	2	3.12%	1	14.29%
Greg Kroah-Hartman	1	1.56%	1	14.29%
Total	64		7

// 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 {
#ifdef CONFIG_VT
		unblank_screen();
#endif
		console_unblank();
		if (--oops_in_progress == 0)
			wake_up_klogd();
	}
}