powerpc/mm/thp: Return pte address if we find trans_splitting.
For THP that is marked trans splitting, we return the pte. This require the callers to handle the pmd_trans_splitting scenario, if they care. All the current callers are either looking at pfn or write_ok, hence we don't need to update them. Signed-off-by:Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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