On 11/20/20 10:10 AM, Pavel Begunkov wrote: > io_uring's direct nowait requests end up waiting on io_schedule() in > sbitmap, that's seems to be so because blkdev_direct_IO() fails to > propagate IOCB_NOWAIT to a bio and hence to blk-mq. Thanks, applied. This slipped through the cracks, and I didn't notice until I went and directly tested some of this... iomap suffers from the same issue, fwiw. -- Jens Axboe
