preempt_disable(); *(unsigned long *)pgd = (unsigned long) pgd_quicklist; pgd_quicklist = (unsigned long *) pgd; ++pgtable_cache_size; preempt_enable();
pgtable_quicklist_free(pgd);
pgd_free (pgd_t *pgd){	preempt_disable();	*(unsigned long *)pgd = (unsigned long) pgd_quicklist;	pgd_quicklist = (unsigned long *) pgd;	++pgtable_cache_size;	preempt_enable();}