HAMMER_OFF_SHORT_MASK
if ((vol_buf_size & ~HAMMER_OFF_SHORT_MASK) != 0) {
boff & HAMMER_OFF_SHORT_MASK);
boff &= HAMMER_OFF_SHORT_MASK;
((hammer_off_t)(offset) & HAMMER_OFF_SHORT_MASK)
KKASSERT((vol_buf_size & ~HAMMER_OFF_SHORT_MASK) == 0);
KKASSERT((vol_buf_size & ~HAMMER_OFF_SHORT_MASK) == 0);
KKASSERT((vol_buf_size & ~HAMMER_OFF_SHORT_MASK) == 0);