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[snip] > @@ -2393,7 +2431,8 @@ static int folio_not_mapped(struct folio *folio) > void try_to_unmap(struct folio *folio, enum ttu_flags flags) > { > struct rmap_walk_control rwc = { > - .rmap_one = try_to_unmap_one, > + .rmap_one = folio_test_hugetlb(folio) ? > + try_to_unmap_hugetlb_one : try_to_unmap_one, > .arg = (void *)flags, > .done = folio_not_mapped, > .anon_lock = folio_lock_anon_vma_read, Now that try_to_unmap_hugetlb_one() is split out, should we wrap it in #ifdef CONFIG_HUGETLB_PAGE and a stub function for !HUGETLB case? I'm working on similar change for try_to_migrate() and had this thought. I think either is fine, but wanted to check the preference. Thanks, Shivank