Re: [PATCH] pata_parport: add driver (PARIDE replacement)

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On Mon, Mar 14, 2022 at 02:29:20PM -0600, Jens Axboe wrote:
> The controller would set
> 
> ->needs_blocking_queue_rq = true;
> 
> or something, and we'd default to false. And if that is set, when the
> blk-mq queue is created, then we'd set BLK_MQ_F_BLOCKING upon creation
> if that flag is true.
> 
> That's the block layer side. Then in libata you'd need to ensure that
> you check that same setting and invoke ata_qc_issue() appropriately.
> 
> Very top level stuff, there might be more things lurking below. But
> you'll probably find them as you test this stuff...

FYI, this somewhat mistitled series:

https://lore.kernel.org/all/20220308003957.123312-1-michael.christie@xxxxxxxxxx/

adds BLK_MQ_F_BLOCKING support to the scsi core.  Doing libata
should be fairly easy and can built ontop of that.



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