vm_page_bits
(m->dirty & vm_page_bits(soff & PAGE_MASK, eoff - soff))) {
m->valid |= vm_page_bits(base, size);
pagebits = vm_page_bits(base, size);
pagebits = vm_page_bits(base, size);
m->dirty &= ~vm_page_bits(base, size);
bits = vm_page_bits(base, size);
int bits = vm_page_bits(base, size);
int vm_page_bits (int, int);