On 2020/8/4 ??5:21, Zhu, Lingshan wrote:>>> Hi Jason,
>>>
>>> we use this lock to protect the eventfd_ctx and irq from race
>>> conditions,
>>
>>
>> We don't support irq notification from vDPA device driver in this
>> version, do we still have race condition?
> as we discussed before:
> (1)if vendor change IRQ after DRIVER_OK, through they should not do this,
but they can.
> (2)if user space changes ctx.
>
> Thanks
Yes, but then everything happens in context of syscall (ioctl), so vq
mutex is sufficient I guess?
Thanks
