Re: [PATCH] uio/gen-pci: don't enable interrupts in ISR

Sebastian Andrzej Siewior
2011-08-09T11:43:52Z

Michael S. Tsirkin wrote:
>> It seems to me that you could drop this "user block" thing
>> since you never change anything outside of this command register and it
>> does not stop the race.
>
> I don't think so: if we did, we would lose userspace modifications to
> other bits such as io enable, and there's no way to guess what their
> values should be.

How so?

Sebastian