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SubjectRe: [KVM PATCH v2 2/2] kvm: add support for irqfd via eventfd-notification interface
Gregory Haskins wrote:



>> Sure, the interface remains the same (write 8 bytes), but the
>> implementation can change. For example, we can implement it to work
>> from interrupt context, once we hack the locking appropriately.
>>
>
> I was thinking more along the lines of eventfd_signal(). AIO and vbus
> currently use this interface, as opposed to the more polymorhpic
> f_ops->write().
>
>

But eventfd_signal basically marries us to eventfd.

--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.



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