Re: [LSF/MM/BPF TOPIC] Towards Unified and Extensible Memory Reclaim (reclaim_ext)

Kairui Song
2026-03-26T12:06:51Z

On Thu, Mar 26, 2026 at 10:05 AM Andrew Morton
<akpm@linux-foundation.org> wrote:
>
> On Wed, 25 Mar 2026 14:06:37 -0700 Shakeel Butt <shakeel.butt@linux.dev> wrote:
>
> > We should unify both algorithms into a single code path.
>
> I'm here to ask the questions which others fear will sound dumb.
>
> Is it indeed the plan to maintain both implementations? I thought the
> long-term ambition was to knock MGLRU into shape and to drop the legacy LRU?

I personally also agree on that, so far I'm not aware of any major
issues with MGLRU except some corner cases that are not hard to fix.
Once these are done, I don't see the need for more complexity.

> And that Linus has expressed such a desire, but my googling fails me.