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@xxxxxxxxxx>
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
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.