Re: [PATCH v3 37/40] mm: eliminate VM_SPECIAL, VMA_SPECIAL_FLAGS

From: Zi Yan

Date: Tue Sep 29 2026 - 22:50:16 EST


On Thu Sep 17, 2026 at 12:22 PM EDT, Lorenzo Stoakes (ARM) wrote:
> Every user of the VM_SPECIAL or VMA_SPECIAL_FLAGS has now been converted to
> predicates which explicitly express what is actually being checked for
> rather than the nebulous concept of possessing 'special' VMA flags.
>
> In any case 'special' is not so special a term of art in mm - it includes
> VDSO/VVAR mappings, special in the sense of vm_normal_folio() and probably
> other cases too.
>
> Therefore make things less special by eliminating these now unused flags.
>
> No functional change intended.
>
> Signed-off-by: Lorenzo Stoakes (ARM) <ljs@xxxxxxxxxx>
> ---
> include/linux/mm.h | 8 --------
> tools/testing/vma/include/dup.h | 8 --------
> 2 files changed, 16 deletions(-)
>

Acked-by: Zi Yan <ziy@xxxxxxxxxx>


--
Best Regards,
Yan, Zi