HAMMER_OFF_LONG_MASK
phys_offset < HAMMER_ZONE_ENCODE(zone, HAMMER_OFF_LONG_MASK);
phys_offset < HAMMER_ZONE_ENCODE(zone, HAMMER_OFF_LONG_MASK);
phys_offset < HAMMER_ZONE_ENCODE(zone, HAMMER_OFF_LONG_MASK);
phys_offset < HAMMER_ZONE_ENCODE(zone, HAMMER_OFF_LONG_MASK);
boff &= HAMMER_OFF_LONG_MASK;
boff &= HAMMER_OFF_LONG_MASK;
((hammer_off_t)(offset) & HAMMER_OFF_LONG_MASK)