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32 lines
676 B
32 lines
676 B
// 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 |
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* 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 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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