SECTIONS_MASK 896 include/linux/mm.h page->flags &= ~(SECTIONS_MASK << SECTIONS_PGSHIFT); SECTIONS_MASK 897 include/linux/mm.h page->flags |= (section & SECTIONS_MASK) << SECTIONS_PGSHIFT; SECTIONS_MASK 902 include/linux/mm.h return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK;