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Re: [PATCH] kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic

From David Hildenbrand <david@redhat.com>
Newsgroups linux.kernel
Subject Re: [PATCH] kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic
Date 2016-11-18 20:30 +0100
Message-ID <sEX1f-2SU-1@gated-at.bofh.it> (permalink)
References <sEymf-3v8-101@gated-at.bofh.it> <sEW5b-2jW-19@gated-at.bofh.it> <sEX1f-2SU-3@gated-at.bofh.it>
Organization Red Hat GmbH

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Am 18.11.2016 um 20:20 schrieb Paolo Bonzini:
>
>
> On 18/11/2016 19:20, David Hildenbrand wrote:
>> Am 17.11.2016 um 15:55 schrieb Paolo Bonzini:
>>> kvm_arch_set_irq is unused since commit b97e6de9c96.  Merge
>>> its functionality with kvm_arch_set_irq_inatomic.
>>>
>>> Reported-by: Jiang Biao <jiang.biao2@zte.com.cn>
>>> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
>>> ---
>>
>> As you said, it is unused. Therefore the functionality is superfluous.
>> Why merge it?
>
> Because we can handle Hyper-V synthetic interrupts atomically, and that
> was the intended usage of kvm_arch_set_irq's code (see commit
> c9a5eccac1ab, "kvm/eventfd: add arch-specific set_irq", 2015-10-16).
>
> What happened was that the API changed between commit c9a5eccac1ab and
> the merge of the Hyper-V synthetic interrupt patches, and the latter was
> not adjusted.
>

Alright, got it. Thanks for the explanation. So

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

David

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Thread

[PATCH] kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic Paolo Bonzini <pbonzini@redhat.com> - 2016-11-17 18:10 +0100
  Re: [PATCH] kvm: x86: merge kvm_arch_set_irq and  kvm_arch_set_irq_inatomic David Hildenbrand <david@redhat.com> - 2016-11-18 19:30 +0100
    Re: [PATCH] kvm: x86: merge kvm_arch_set_irq and  kvm_arch_set_irq_inatomic David Hildenbrand <david@redhat.com> - 2016-11-18 20:30 +0100
    Re: [PATCH] kvm: x86: merge kvm_arch_set_irq and  kvm_arch_set_irq_inatomic Paolo Bonzini <pbonzini@redhat.com> - 2016-11-18 20:30 +0100
  Re: [PATCH] kvm: x86: merge kvm_arch_set_irq and  kvm_arch_set_irq_inatomic Radim Krčmář <rkrcmar@redhat.com> - 2016-11-19 20:40 +0100

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