/* * 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>extern spinlock_t timerlist_lock;void bust_spinlocks(int yes){	spin_lock_init(&timerlist_lock);	if (yes) {		oops_in_progress = 1;	} else {		int loglevel_save = console_loglevel;#if defined(CONFIG_VT) && defined(CONFIG_CONSOLE_PM) // bushi		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;	}}