Re: [RFC PATCH 0/8] mm/memcontrol: introduce per-tier memory accounting and control

[Joshua Hahn]

On Tue, 18 Aug 2026 10:12:19 +0200 Michal Hocko <mhocko@xxxxxxxx> wrote:

> Are you aware of a similar work in this area by Joshua
> https://lore.kernel.org/all/20260807202059.2620949-1-joshua.hahnjy@xxxxxxxxx/T/#u?
> We owe Joshua review feedback for quite some time but if I have to be
> honest the most impeding factor on my end is that I am not really
> convinced tier aware controlling is the right direction. I have
> expressed some concerns on one of the earlier proposal by Joshua
> https://lore.kernel.org/all/aZ2LC0KPF0xsAwAL@tiehlicka/T/#u
> 
> In any way it would be great to talk and compare your approaches see
> where they align and the discuss further.

Hi Michal,

I hope you have been doing well! Maybe this is a good opportunity to
squash concerns about the series : -) I've sent a new version which
addresses a lot of the concerns that David Hildenbrand had previously
brought up [1]. This implementation is as transparent as can be to the
user. I hope that this makes sense to you! 

IIRC you had some concerns about getting the interface right the first
time we introduce this feature. Hopefully with no user-visible features
(and only a mount option) your concerns there are resolved and hopefully
we can work to figure out what remaining concerns there are.

Thank you as always for your time. I hope you have a great day!
Joshua

[1] https://lore.kernel.org/all/20260807202059.2620949-1-joshua.hahnjy@xxxxxxxxx/