PPOD_PAGES_MAX
npods = (nr_pages + PPOD_PAGES_MAX - 1) >> PPOD_PAGES_SHIFT;
__be64 addr[PPOD_PAGES_MAX + 1];
sg_off = i * PPOD_PAGES_MAX;
for (i = 0; i < PPOD_PAGES_MAX; i++) {
for (i = 0; i < PPOD_PAGES_MAX; i++) {