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Patch series "mm: convert numa balancing functions to use a folio", v2. do_numa_pages() only handles non-compound pages, and only PMD-mapped THPs are handled in do_huge_pmd_numa_page(). But a large, PTE-mapped folio will be supported so let's convert more numa balancing functions to use/take a folio in preparation for that, no functional change intended for now. This patch (of 6): The new vm_normal_folio_pmd() wrapper is similar to vm_normal_folio(), which allow them to completely replace the struct page variables with struct folio variables. Link: https://lkml.kernel.org/r/20230921074417.24004-1-wangkefeng.wang@huawei.com Link: https://lkml.kernel.org/r/20230921074417.24004-2-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: David Hildenbrand <david@redhat.com> Cc: "Huang, Ying" <ying.huang@intel.com> Cc: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Zi Yan <ziy@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>