On Tue, Oct 19, 2021 at 10:24:22PM +0100, Pavel Begunkov wrote: > If we know that a iocb is async we can optimise bio_set_polled() a bit, > add a new helper bio_set_polled_async(). This avoids a single if. Why? I'm really worried about all these micro-optimizations that just make the code harder and harder to maintain.