Re: [PATCH v2 0/6] kvm->lock vs. SRCU sync optimizations

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On Sat, 07 Jan 2023 01:12:50 +0100, Michal Luczaj wrote:
> This series is mostly about unlocking kvm->lock before synchronizing SRCU.
> Discussed at https://lore.kernel.org/kvm/Y7dN0Negds7XUbvI@xxxxxxxxxx/ .
> 
> I'm mentioning the fact it's an optimization (not a bugfix; at least under
> the assumption that Xen does not break the lock order anymore) meant to
> reduce the time spent under the mutex. Sean, would that suffice?
> 
> [...]

Applied to kvm-x86 misc, thanks!

Note, I massaged a few changelogs to provide more context and justification,
but didn't see a need to respond to individual patches.

[1/6] KVM: x86: Optimize kvm->lock and SRCU interaction (KVM_SET_PMU_EVENT_FILTER)
      https://github.com/kvm-x86/linux/commit/95744a90db18
[2/6] KVM: x86: Optimize kvm->lock and SRCU interaction (KVM_X86_SET_MSR_FILTER)
      https://github.com/kvm-x86/linux/commit/708f799d22fe
[3/6] KVM: x86: Simplify msr_filter update
      https://github.com/kvm-x86/linux/commit/4d85cfcaa82f
[4/6] KVM: x86: Explicitly state lockdep condition of msr_filter update
      https://github.com/kvm-x86/linux/commit/1fdefb8bd862
[5/6] KVM: x86: Remove unnecessary initialization in kvm_vm_ioctl_set_msr_filter()
      https://github.com/kvm-x86/linux/commit/4559e6cf45b5
[6/6] KVM: x86: Simplify msr_io()
      https://github.com/kvm-x86/linux/commit/e73ba25fdc24

--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes



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