Re: [PATCH v5 38/38] mm/huge_memory: remove vma_is_special_huge()

[David Hildenbrand (Arm)]

On 10/9/26 20:04, Lorenzo Stoakes (ARM) wrote:
> vma_is_special_huge() tests whether either the VMA_PFNMAP_BIT or
> VMA_MIXEDMAP_BIT is set (i.e. whether the VMA is not mm-managed),
> but with a DAX carve-out.
> 
> DAX however no longer sets VMA_MIXEDMAP_BIT, so this carve-out is no longer
> required.
> 
> Therefore test for !vma_is_mm_managed() instead and also drop the
> VMA_IO_BIT check, as it is now redundant since it is enforced that
> mm-managed mappings may not set VMA_IO_BIT.
> 
> This also eliminates another overloaded use of 'special' within mm.
> 
> No functional change intended.
> 
> Acked-by: Zi Yan <ziy@xxxxxxxxxx>
> Signed-off-by: Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>
> ---

Acked-by: David Hildenbrand (Arm) <david@xxxxxxxxxx>

-- 
Cheers,

David