pfn_is_map_memory
if (pfn_is_map_memory(__phys_to_pfn(addr)))
__is_lm_address(__addr) && pfn_is_map_memory(virt_to_pfn(__addr)); \
int pfn_is_map_memory(unsigned long pfn);
if (vm_flags & (VM_PFNMAP | VM_MIXEDMAP) && !pfn_is_map_memory(pfn)) {
EXPORT_SYMBOL(pfn_is_map_memory);
if (WARN_ONCE(pfn_is_map_memory(__phys_to_pfn(phys_addr)),
return pfn_is_map_memory(pfn);
if (!pfn_is_map_memory(pfn))