On Mon, Aug 31, 2020 at 11:29:03AM -0400, Sasha Levin wrote: > From: Keith Busch <kbusch@xxxxxxxxxx> > > [ Upstream commit c41ad98bebb8f4f0335b3c50dbb7583a6149dce4 ] > > Zoned block devices reuse the chunk_sectors queue limit to define zone > boundaries. If a such a device happens to also report an optimal > boundary, do not use that to define the chunk_sectors as that may > intermittently interfere with io splitting and zone size queries. > > Signed-off-by: Keith Busch <kbusch@xxxxxxxxxx> > Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx> > Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> You can safely drop this from stable: nvme zoned devices were only introduced to linux in 5.9.