Re: [PATCH v3] mm: page_alloc: make defrag_mode retries follow the promoted order

[Kiryl Shutsemau]

On Thu, Oct 15, 2026 at 09:16:36AM +0200, Vlastimil Babka (SUSE) wrote:
> > And agree 7.4-rc1 with CC stable is fine. Sadly, not sure if anyone
> > but Meta is using the feature right now.
> 
> I thought it was there for a long time but it was only added in 2025 :) At
> least the enterprise world is slow to adopt things, AFAICS.

I was thinking to propose a patch after merge window to make defrag_mode
default. Do you think it is too early? I don't think it is ever going
to be truly stabilized without wider exposure.

We also discussed with Johannes to make a stricter (defrag_mode=2?) mode
that will not give up on fragmentation ever, but OOM instead.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov