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))