Re: [PATCH v5] mm: Fix a hmm_range_fault() livelock / starvation problem

Matthew Brost
2026-04-06T19:11:38Z

On Mon, Apr 06, 2026 at 01:56:49PM +0100, Lorenzo Stoakes (Oracle) wrote:
> On Mon, Apr 06, 2026 at 01:54:13PM +0100, Lorenzo Stoakes (Oracle) wrote:
> > I see John gave a tag (and he's great so that gives me confidence here),
> > but we should really follow the procedure on this properly.
>
> Oh and just noticed Alastair also :) so that adds further confidence, so this is
> really a point about cc/M signoff requirement going forwards.

+1.

Andrew did ACK this via DRM here [1].

When we take external subsystem patches through DRM, our merge script
requires ACKs from an external maintainer, as determined by
get_maintainers.pl.

I’m not sure what happened here, but it looks like Andrew’s ACK was lost
on the patch, and somehow our merge tool allowed it to go in regardless.
We will be more diligent going forward.

Matt

[1] https://patchwork.freedesktop.org/patch/703183/?series=161082&rev=3#comment_1294670

>
> Thanks, Lorenzo