Re: [PATCH 1/2] KVM: x86: Synthesize at most one PMI per VM-exit

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On Fri, Sep 22, 2023, Mingwei Zhang wrote:
> So yes, they could be put together and they could be put separately.
> But I don't see why they _cannot_ be together or cause confusion.

Because they don't need to be put together.  Roman's patch kinda sorta overlaps
with the prev_counter mess, but Jim's fixes are entirely orthogonal.

If one person initially posted such a series with everything together I probably
wouldn't care *too* much, but combining patches and/or series that aren't tightly
coupled or dependent in some way usually does more harm than good.  E.g. if a
maintainer has complaints against only one or two patches in series of unrelated
patches, then grabbing the "good" patches is unnecessarily difficult.  It's not
truly hard on the maintainer's end, but little bits of avoidable friction in the
process adds up across hundreds and thousands of patches.

FWIW, my plan is to apply Roman's patch pretty much as-is, grab v2 from Jim, and
post my cleanups as a separate series on top (maybe two series, really haven't
thought about it yet).  The only reason I have them all in a single branch is
because there are code conflicts and I know I will apply the patches from Roman
and Jim first, i.e. I didn't want to develop on a base that I knew would become
stale.

> So, I would like to put them together in the same context with a cover letter
> fully describing the details.

I certainly won't object to a thorough bug report/analysis, but I'd prefer that
Jim's series be posted separately (though I don't care if it's you or Jim that
posts it).



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