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Patch series "mm/huge_memory: Define split_type and consolidate split support checks", v3. This two-patch series focuses on improving code clarity and removing redundancy in the huge memory handling logic related to folio splitting. The series is based on an original proposal to merge two significantly identical functions that check folio split support[1]. During this process, we found an opportunity to improve readability by explicitly defining the split types. Patch 1: define split_type and use it Patch 2: merge uniform_split_supported() and non_uniform_split_supported() This patch (of 2): We currently handle two distinct types of large folio splitting: * uniform split * non-uniform split Differentiating between these types using a simple boolean variable is not obvious and can harm code readability. This commit introduces enum split_type to explicitly define these two types. Replacing the existing boolean variable with this enumeration significantly improves code clarity and expressiveness when dealing with folio splitting logic. No functional change is expected. [akpm@linux-foundation.org: tweak layout, per David] Link: https://lkml.kernel.org/r/20251106034155.21398-1-richard.weiyang@gmail.com Link: https://lkml.kernel.org/r/20251106034155.21398-2-richard.weiyang@gmail.com Signed-off-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Zi Yan <ziy@nvidia.com> Cc: "David Hildenbrand (Red Hat)" <david@kernel.org> Cc: Baolin Wang <baolin.wang@linux.alibaba.com> Cc: Barry Song <baohua@kernel.org> Cc: Dev Jain <dev.jain@arm.com> Cc: Lance Yang <lance.yang@linux.dev> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Nico Pache <npache@redhat.com> Cc: Ryan Roberts <ryan.roberts@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Linux kernel
============
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In order to build the documentation, use ``make htmldocs`` or
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