mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
b61312d353
This used to work unpatched with older kernels, during the development
phase of mtdoops. Before commit e3e8a75d2a
a space was printed with console_loglevel set to 15, which probably
flushed the oops message as a side effect.
This is another patch from the Nokia N810 kernel.
Signed-off-by: Viktor Rosendahl <viktor.rosendahl@nokia.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
33 lines
636 B
C
33 lines
636 B
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>
|
|
#include <linux/console.h>
|
|
|
|
|
|
void __attribute__((weak)) 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();
|
|
}
|
|
}
|
|
|
|
|