Re: [RFC PATCH v2 00/13] mm: rework anon_vma and remove anon_vma_chain

From: Hillf Danton

Date: Wed Jul 08 2026 - 00:39:30 EST


On Tue, 7 Jul 2026 09:01:04 +0200 "David Hildenbrand (Arm)" wrote:
> On 7/7/26 08:32, tao wrote:
> > Hi all,
> >
> > Since v1 was relatively complex and difficult to extend, this version
> > adopts a simpler anon_vma implementation approach.
>
> I really hate to repeat myself, but you seemed to have missed my main point [1]
>
> "Lorenzo has been hard at work exploring various design options (and I'm afraid
> he might be one of the 3 people on this planet that understand anon_vma in full
> detail), so I suggest we wait for a redesign proposal from him and see if that
> is doable?"
>
Given that no numabalance could land upstream without horse racing [2], what
prevents Lorenzo from becoming another (scarlet? raven black?) lipstick given mglru?

> [1] https://lore.kernel.org/all/70377626-500d-46f2-a3f5-a0d2914ce365@xxxxxxxxxx/
>
[2] Subject: Re: [PATCH 00/35] AutoNUMA alpha14
https://lore.kernel.org/lkml/CA+55aFxpD+LsE+aNvDJtz9sGsGMvdusisgOY3Csbzyx1mEqW-w@xxxxxxxxxxxxxx/

> --
> Cheers,
>
> David