On Thu, Dec 19, 2019 at 09:59:14PM +0000, Ober, Frank wrote: > Thanks Keith, it makes sense to reserve and set it up uniquely if you > can save hw interrupts. But why would io_uring then not need these > queues, because a stack trace I ran shows without the special queues I > am still entering bio_poll. With pvsync2 I can only do polled io with > the poll_queues? Polling can happen only if you have polled queues, so io_uring is not accomplishing anything by calling iopoll. I don't see an immediately good way to pass that information up to io_uring, though.
