Re: [PATCH v2 00/40] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL

[Lorenzo Stoakes (ARM)]

On Sat, Sep 19, 2026 at 04:09:13PM +0100, Lorenzo Stoakes (ARM) wrote:
> On Sat, Sep 19, 2026 at 04:05:57PM +0100, Lorenzo Stoakes (ARM) wrote:
> > On Fri, Sep 18, 2026 at 01:31:24PM -0700, Suren Baghdasaryan wrote:
> > > On Fri, Sep 18, 2026 at 1:21 PM David Hildenbrand (Arm)
> > > <david@xxxxxxxxxx> wrote:
> > > >
> > > > On 9/15/26 03:08, Andrew Morton wrote:
> > > > > On Mon, 14 Sep 2026 15:57:20 +0100 "Lorenzo Stoakes (ARM)" <ljs@xxxxxxxxxx> wrote:
> > > > >
> > > > >> The VM_SPECIAL / VMA_SPECIAL_FLAGS mask conflates several unrelated
> > > > >> properties:
> > > > >>
> > > > >> ...
> > > > >>
> > > > >> It's all rather a mess.
> > > > >>
> > > > >> This series brings some order to things by both limiting what drivers can
> > > > >> do with VMA flags and switching to using predicates that describe
> > > > >> behaviour, not arbitrary flags.
> > > > >
> > > > > That's a lot of patches.
> > > > >
> > > > > Review is thin and I expect this won't improve a lot.  Lots of "no
> > > > > functional changes" changes.
> > > >
> > > > I'll expect to go through all of them. Might just take a bit ;)
> > >
> > > ditto
> >
> > Thanks guys!
>
> Note v3 has been posted to fix a stupid bug in 1/40 + attack some very trivial
> sashiko stuff
>
> https://lore.kernel.org/linux-mm/20260917-b4-mmap-prepare-vma-flag-sanify-v3-0-4583d8a23bca@xxxxxxxxxx/

Just a gentle nudge on this :)

If you guys or anybody else has some time it'd be appreciated! (obv. the v3 as
linked above not this v2!)

I know the series seems intimidating but most of the commits are very small and
it's been in -next for a while.

>
> >
> > >
> > > >
> > > > --
> > > > Cheers,
> > > >
> > > > David
> >
> > --
> > Cheers, Lorenzo
>
> --
> Cheers, Lorenzo

--
Cheers, Lorenzo