Re: [PATCH v4 35/38] mm: avoid use of VMA_SPECIAL_FLAGS in migrate_vma_setup()

Now we have the expressive vma_is_mm_managed() 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 mm-managed mappings may not set
it.

hugetlb mappings remain excluded, as they are fixed mappings.

No functional change intended.

Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>

Sashiko has reviewed this patch and found no issues. It looks great!

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261003-b4-mmap-prepare-vma-flag-sanify-v4-0-a1f052500fd7@kernel.org?part=35