XBD_MAX_RING_PAGES
if (sc->xbd_ring_pages > XBD_MAX_RING_PAGES) {
sc->xbd_ring_pages, XBD_MAX_RING_PAGES);
sc->xbd_ring_pages = XBD_MAX_RING_PAGES;
for (i = 0; i < XBD_MAX_RING_PAGES; i++)
grant_ref_t xbd_ring_ref[XBD_MAX_RING_PAGES];
__CONST_RING_SIZE(blkif, PAGE_SIZE * XBD_MAX_RING_PAGES)