cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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bust_spinlocks.c (676B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * lib/bust_spinlocks.c
      4 *
      5 * Provides a minimal bust_spinlocks for architectures which don't
      6 * have one of their own.
      7 *
      8 * bust_spinlocks() clears any spinlocks which would prevent oops, die(), BUG()
      9 * and panic() information from reaching the user.
     10 */
     11
     12#include <linux/kernel.h>
     13#include <linux/printk.h>
     14#include <linux/spinlock.h>
     15#include <linux/tty.h>
     16#include <linux/wait.h>
     17#include <linux/vt_kern.h>
     18#include <linux/console.h>
     19
     20void bust_spinlocks(int yes)
     21{
     22	if (yes) {
     23		++oops_in_progress;
     24	} else {
     25#ifdef CONFIG_VT
     26		unblank_screen();
     27#endif
     28		console_unblank();
     29		if (--oops_in_progress == 0)
     30			wake_up_klogd();
     31	}
     32}