block: add async version of bio_set_polled
If we know that a iocb is async we can optimise bio_set_polled() a bit, add a new helper bio_set_polled_async(). Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/8fa137885164a5d05fadcff4c3521da8d5a83d00.1635337135.git.asml.silence@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -358,14 +358,13 @@ static ssize_t __blkdev_direct_IO_async(struct kiocb *iocb,
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task_io_account_write(bio->bi_iter.bi_size);
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}
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if (iocb->ki_flags & IOCB_NOWAIT)
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bio->bi_opf |= REQ_NOWAIT;
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if (iocb->ki_flags & IOCB_HIPRI) {
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bio_set_polled(bio, iocb);
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bio->bi_opf |= REQ_POLLED | REQ_NOWAIT;
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submit_bio(bio);
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WRITE_ONCE(iocb->private, bio);
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} else {
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if (iocb->ki_flags & IOCB_NOWAIT)
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bio->bi_opf |= REQ_NOWAIT;
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submit_bio(bio);
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}
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return -EIOCBQUEUED;
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