On Wed, Dec 05, 2018 at 06:39:26AM -0700, Jens Axboe wrote:
> > What device is this?
>
> This might also help...
Yes, it should. I had missed that we turned on QUEUE_FLAG_POLL
by default, which is rather odd. The even weirder things is that
git-blame claims it was me who enabled it :)
>
> diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
> index 0b3874bdbc6a..81f1b105946b 100644
> --- a/include/linux/blkdev.h
> +++ b/include/linux/blkdev.h
> @@ -606,8 +606,7 @@ struct request_queue {
> (1 << QUEUE_FLAG_ADD_RANDOM))
>
> #define QUEUE_FLAG_MQ_DEFAULT ((1 << QUEUE_FLAG_IO_STAT) |
> \
> - (1 << QUEUE_FLAG_SAME_COMP) | \
> - (1 << QUEUE_FLAG_POLL))
> + (1 << QUEUE_FLAG_SAME_COMP))
>
> void blk_queue_flag_set(unsigned int flag, struct request_queue *q);
> void blk_queue_flag_clear(unsigned int flag, struct request_queue *q);
>
> --
> Jens Axboe
---end quoted text---
