VM_MAPPED_COPY
#define __VM_ARCH_SPECIFIC_1 {VM_MAPPED_COPY,"mappedcopy" }
if (pregion->vm_flags & VM_MAPPED_COPY)
vm_flags_set(vma, VM_MAPPED_COPY);
if (region->vm_flags & VM_MAPPED_COPY)
vm_flags_set(vma, VM_MAPPED_COPY);