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SubjectRe: [PATCH] KVM: x86: User mutex guards to eliminate __kvm_x86_vendor_init()
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On Mon, Oct 30, 2023, Paolo Bonzini wrote:
> On 10/30/23 17:07, Sean Christopherson wrote:
> > On Mon, Oct 30, 2023, Nikolay Borisov wrote:
> > > Current separation between (__){0,1}kvm_x86_vendor_init() is superfluos as
> >
> > superfluous
> >
> > But this intro is actively misleading. The double-underscore variant most definitely
> > isn't superfluous, e.g. it eliminates the need for gotos reduces the probability
> > of incorrect error codes, bugs in the error handling, etc. It _becomes_ superflous
> > after switching to guard(mutex).
> >
> > IMO, this is one of the instances where the then solution problem appoach is
> > counter-productive. If there are no objections, I'll massage the change log to
> > the below when applying (for 6.8, in a few weeks).
>
> I think this is a "Speak Now or Forever Rest in Peace" situation. I'm going
> to wait a couple days more for reviews to come in, post a v14 myself, and
> apply the series to kvm/next as soon as Linus merges the 6.7 changes. The
> series will be based on the 6.7 tags/for-linus, and when 6.7-rc1 comes up,
> I'll do this to straighten the history:

Heh, I'm pretty sure you meant to respond to the guest_memfd series.

> git checkout kvm/next
> git tag -s -f kvm-gmem HEAD
> git reset --hard v6.7-rc1
> git merge tags/kvm-gmem
> # fix conflict with Christian Brauner's VFS series
> git commit
> git push kvm
>
> 6.8 is not going to be out for four months, and I'm pretty sure that
> anything discovered within "a few weeks" can be applied on top, and the
> heaviness of a 35-patch series will outweigh any imperfections by a long
> margin).
>
> (Full disclosure: this is _also_ because I want to apply this series to the
> RHEL kernel, and Red Hat has a high level of disdain for non-upstream
> patches. But it's mostly because I want all dependencies to be able to move
> on and be developed on top of stock kvm/next).

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