P2BOUNDARY
if (P2BOUNDARY(taddr, size, nocross))
ASSERT(!P2BOUNDARY(addr, size, nocross));
if (P2BOUNDARY(zio->io_offset, zio->io_size, VCBS))
P2BOUNDARY(offset, size, zv->zv_volblocksize)) {
if (P2BOUNDARY(taddr, size, nocross))
ASSERT(!P2BOUNDARY(addr, size, nocross));
ASSERT(!P2BOUNDARY((uintptr_t)raddr, rsize, PAGESIZE) ||