preempt_disable(); 
void cpu_idle(void){	/* endless idle loop with no priority at all */	while (1) {		while (!need_resched())			barrier();		schedule();		check_pgt_cache();	}}
10457	/local/tlutelli/issta_data/temp/c/2005_temp/2005/10457/5bfb5d690f36d316a5f3b4f7775fda996faa6b12/process.c/clean/arch/parisc/kernel/process.c