Re: [PATCH] block: don't ignore REQ_NOWAIT for direct IO
From: Jens Axboe <axboe@kernel.dk>
Date: 2021-04-02 14:34:08
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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