Re: [PATCH AUTOSEL 5.8 11/42] nvme: skip noiob for zoned devices

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On Mon, Aug 31, 2020 at 09:38:18AM -0600, Keith Busch wrote:
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.

Dropped, thanks!

--
Thanks,
Sasha



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