a_end            4856 mm/hugetlb.c   		unsigned long a_end = a_start + PUD_SIZE;
a_end            4861 mm/hugetlb.c   		if (range_in_vma(vma, a_start, a_end)) {
a_end            4864 mm/hugetlb.c   			if (a_end > *end)
a_end            4865 mm/hugetlb.c   				*end = a_end;