pte_set_bits
pte_set_bits(pte, _PAGE_USER);
pte_set_bits(pte, _PAGE_DIRTY);
pte_set_bits(pte, _PAGE_ACCESSED);
pte_set_bits(pte, _PAGE_RW);
pte_set_bits(pte, _PAGE_NEEDSYNC);
pte_set_bits(pte, _PAGE_SWP_EXCLUSIVE);