order_in 2549 arch/x86/xen/mmu_pv.c static int xen_exchange_memory(unsigned long extents_in, unsigned int order_in, order_in 2562 arch/x86/xen/mmu_pv.c .extent_order = order_in, order_in 2575 arch/x86/xen/mmu_pv.c BUG_ON(extents_in << order_in != extents_out << order_out);