PVCALLS_RING_ORDER
if (max_page_order < PVCALLS_RING_ORDER)
RING_IDX cons, prod, size = XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER);
XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER)) != 0);
for (i = 0; i < (1 << PVCALLS_RING_ORDER); i++)
map->active.ring->ring_order = PVCALLS_RING_ORDER;
bytes = alloc_pages_exact(PAGE_SIZE << PVCALLS_RING_ORDER,
XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER);
for (i = 0; i < (1 << PVCALLS_RING_ORDER); i++)
RING_IDX array_size = XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER);
RING_IDX array_size = XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER);
if (len > XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER))
len = XEN_FLEX_RING_SIZE(PVCALLS_RING_ORDER);