33 lines
696 B
C
33 lines
696 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* lib/bust_spinlocks.c
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*
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* Provides a minimal bust_spinlocks for architectures which don't have one of their own.
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*
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* bust_spinlocks() clears any spinlocks which would prevent oops, die(), BUG()
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* and panic() information from reaching the user.
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*/
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#include <linux/kernel.h>
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#include <linux/printk.h>
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#include <linux/spinlock.h>
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#include <linux/tty.h>
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#include <linux/wait.h>
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#include <linux/vt_kern.h>
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#include <linux/console.h>
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void __attribute__((weak)) bust_spinlocks(int yes)
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{
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if (yes) {
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++oops_in_progress;
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} else {
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#ifdef CONFIG_VT
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unblank_screen();
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#endif
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console_unblank();
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if (--oops_in_progress == 0)
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wake_up_klogd();
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}
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}
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