Revision 75ce6faccdbbea4465876a759917d4994660c025 authored by Jens Axboe on 15 April 2008, 08:23:35 UTC, committed by Jens Axboe on 15 April 2008, 08:23:35 UTC
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
1 parent d237e5c
bust_spinlocks.c
/*
* 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/spinlock.h>
#include <linux/tty.h>
#include <linux/wait.h>
#include <linux/vt_kern.h>
void __attribute__((weak)) bust_spinlocks(int yes)
{
if (yes) {
++oops_in_progress;
} else {
#ifdef CONFIG_VT
unblank_screen();
#endif
if (--oops_in_progress == 0)
wake_up_klogd();
}
}
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