[PATCH v3] nvme: add quirk to force medium priority for SQ creation

[Keith Busch]

On Tue, May 08, 2018 at 10:35:39AM -0600, Keith Busch wrote:
> On Tue, May 08, 2018 at 10:25:15AM -0600, Jens Axboe wrote:
> > Some P3100 drives have a bug where they think WRRU (weighted round
> > robin) is always enabled, even though the host doesn't set it. Since
> > they think it's enabled, they also look at the submission queue
> > creation priority. We used to set that to MEDIUM by default,
> > but that was removed in commit 81c1cd98351b. This causes various
> > issues on that drive. Add a quick to still set MEDIUM priority
> > for that controller.
> > 
> > Fixes: 81c1cd98351b ("nvme/pci: Don't set reserved SQ create flags")
> > Cc: stable at vger.kernel.org
> > Signed-off-by: Jens Axboe <axboe at kernel.dk>
> 
> Thanks, applied to nvme-4.18.

Actually, any concern if I apply for the next 4.17-rc instead? I know
this breakage isn't all that recent, but there seems to be heightened
visibility on getting this work-around to users.