pgtable_range_aligned
if (!pgtable_range_aligned(start, end, floor, ceiling, PMD_MASK))
if (!pgtable_range_aligned(start, end, floor, ceiling, PUD_MASK))
if (!pgtable_range_aligned(start, end, floor, ceiling, P4D_MASK))
if (!pgtable_range_aligned(start, end, floor, ceiling, PGDIR_MASK))