xen_mc_extend_args  300 arch/x86/xen/mmu.c 	mcs = xen_mc_extend_args(__HYPERVISOR_mmu_update, sizeof(*u));
xen_mc_extend_args   58 arch/x86/xen/multicalls.h struct multicall_space xen_mc_extend_args(unsigned long op, size_t arg_size);