On 5/1/19 5:52 AM, Stefan Bühler wrote: > This makes the mapping RWF_HIPRI <-> IOCB_HIPRI <-> iopoll more > consistent; it also allows supporting iopoll operations without > IORING_SETUP_IOPOLL in the future. I don't want to make this change now. Additionally, it's never going to be possible to support polled IO mixed with non-polled IO on an io_uring instance, as that makes the wait part of IO impossible to support without adding tracking of requests. As we can never mix them, it doesn't make a lot of sense to request RWF_HIPRI for polled IO. -- Jens Axboe