[dm-devel] [PATCH 1/2] block: add QUEUE_FLAG_NOWAIT

[Christoph Hellwig]

On Wed, Sep 23, 2020 at 04:06:51PM -0400, Mike Snitzer wrote:
> Add QUEUE_FLAG_NOWAIT to allow a block device to advertise support for
> REQ_NOWAIT. Bio-based devices may set QUEUE_FLAG_NOWAIT where
> applicable.
> 
> Update QUEUE_FLAG_MQ_DEFAULT to include QUEUE_FLAG_NOWAIT.  Also
> update submit_bio_checks() to verify it is set for REQ_NOWAIT bios.
> 
> Reported-by: Konstantin Khlebnikov <khlebnikov at yandex-team.ru>
> Suggested-by: Christoph Hellwig <hch at lst.de>
> Signed-off-by: Mike Snitzer <snitzer at redhat.com>

Looks good:

Reviewed-by: Christoph Hellwig <hch at lst.de>