Re: [PATCH v6 0/6] KSM: performance optimizations for rmap_walk_ksm

[Andrew Morton]

On Fri, 22 May 2026 10:52:34 +0800 (CST) <xu.xin16@xxxxxxxxxx> wrote:

> This series fixes a severe KSM reverse-mapping performance problem
> that can freeze applications for hundreds of milliseconds under
> memory pressure especially when a lot of unrelated VMAs sharing a
> single anon_vma.

Thanks.  I agree that this behaviour is quite obnoxious and getting it
addressed is quite desirable.

So I'd normally merge this in its present unreviewed state in order to
push things along a bit, but the AI review gives me pause:

	https://sashiko.dev/#/patchset/20260522105234715fKI7KSsjC5XpEVMwoV6rI@xxxxxxxxxx

Can you please take a look, decide what (if any) changes are needed?