fault_pfn        1936 mm/gup.c       	unsigned long fault_pfn;
fault_pfn        1939 mm/gup.c       	fault_pfn = pmd_pfn(orig) + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
fault_pfn        1940 mm/gup.c       	if (!__gup_device_huge(fault_pfn, addr, end, pages, nr))
fault_pfn        1953 mm/gup.c       	unsigned long fault_pfn;
fault_pfn        1956 mm/gup.c       	fault_pfn = pud_pfn(orig) + ((addr & ~PUD_MASK) >> PAGE_SHIFT);
fault_pfn        1957 mm/gup.c       	if (!__gup_device_huge(fault_pfn, addr, end, pages, nr))