mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
40 lines
931 B
C
40 lines
931 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/config.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/wait.h>
|
|
#include <linux/vt_kern.h>
|
|
|
|
|
|
void bust_spinlocks(int yes)
|
|
{
|
|
if (yes) {
|
|
oops_in_progress = 1;
|
|
} else {
|
|
int loglevel_save = console_loglevel;
|
|
#ifdef CONFIG_VT
|
|
unblank_screen();
|
|
#endif
|
|
oops_in_progress = 0;
|
|
/*
|
|
* OK, the message is on the console. Now we call printk()
|
|
* without oops_in_progress set so that printk() will give klogd
|
|
* and the blanked console a poke. Hold onto your hats...
|
|
*/
|
|
console_loglevel = 15; /* NMI oopser may have shut the console up */
|
|
printk(" ");
|
|
console_loglevel = loglevel_save;
|
|
}
|
|
}
|
|
|
|
|