Re: [v7 00/16] mm: support device-private THP

From: Andrew Morton

Date: Tue Nov 11 2025 - 18:43:27 EST


On Thu, 9 Oct 2025 03:33:33 -0700 Matthew Brost <matthew.brost@xxxxxxxxx> wrote:

> > >> This patch series introduces support for Transparent Huge Page
> > >> (THP) migration in zone device-private memory. The implementation enables
> > >> efficient migration of large folios between system memory and
> > >> device-private memory
> > >
> > > Lots of chatter for the v6 series, but none for v7. I hope that's a
> > > good sign.
> > >
> >
> > I hope so too, I've tried to address the comments in v6.
> >
>
> Circling back to this series, we will itegrate and test this version.

How'd it go?

Balbir, what's the status here? It's been a month and this series
still has a "needs a new version" feeling to it. If so, very soon
please.

TODOs which I have noted are

https://lkml.kernel.org/r/aOePfeoDuRW+prFq@xxxxxxxxxxxxxxxxxxxxxxxxx
https://lkml.kernel.org/r/CABzRoyZZ8QLF5PSeDCVxgcnQmF9kFQ3RZdNq0Deik3o9OrK+BQ@xxxxxxxxxxxxxx
https://lkml.kernel.org/r/D2A4B724-E5EF-46D3-9D3F-EBAD9B22371E@xxxxxxxxxx
https://lkml.kernel.org/r/62073ca1-5bb6-49e8-b8d4-447c5e0e582e@

plus a general re-read of the
mm-migrate_device-add-thp-splitting-during-migration.patch review
discussion.