mm/hmm: factor out pte and pmd handling to simplify hmm_vma_walk_pmd()
No functional change, just create one function to handle pmd and one to handle pte (hmm_vma_handle_pmd() and hmm_vma_handle_pte()). Link: http://lkml.kernel.org/r/20180323005527.758-14-jglisse@redhat.comSigned-off-by: NJérôme Glisse <jglisse@redhat.com> Reviewed-by: NJohn Hubbard <jhubbard@nvidia.com> Cc: Evgeny Baskakov <ebaskakov@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Mark Hairgrove <mhairgrove@nvidia.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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