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W.r.t hugetlb, we support two format for pmd. With book3s_64 and 64K linux page size, we can have pte at the pmd level. Hence we don't need to support hugepd there. For everything else hugepd is supported and pmd_huge is (0). Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>