// 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();

  	}
  }