Re: [PATCH v3 36/40] mm: avoid use of VMA_SPECIAL_FLAGS in migrate_vma_setup()

[Zi Yan]

On Thu Sep 17, 2026 at 12:22 PM EDT, Lorenzo Stoakes (ARM) wrote:
> Now we have the expressive vma_is_kernel_owned() and vma_is_fixed_mapping()
> predicates, use them to determine whether to proceed with migration. This
> drops the VMA_IO_BIT test, which is safe as only kernel-owned mappings may
> set it.
>
> hugetlb mappings remain excluded, as they are fixed mappings.
>
> No functional change intended.
>
> Signed-off-by: Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>
> ---
>  mm/migrate_device.c | 12 +++++++-----
>  1 file changed, 7 insertions(+), 5 deletions(-)
>
Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>


-- 
Best Regards,
Yan, Zi