LAST_CPUPID_PGSHIFT 829 include/linux/mm.h return (page->flags >> LAST_CPUPID_PGSHIFT) & LAST_CPUPID_MASK; LAST_CPUPID_PGSHIFT 838 include/linux/mm.h page->flags &= ~(LAST_CPUPID_MASK << LAST_CPUPID_PGSHIFT); LAST_CPUPID_PGSHIFT 839 include/linux/mm.h page->flags |= (cpupid & LAST_CPUPID_MASK) << LAST_CPUPID_PGSHIFT;