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linux-stable/drivers/nvme
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Bijan Mottahedeh 9515743bfb nvme-pci: Hold cq_poll_lock while completing CQEs 
Completions need to consumed in the same order the controller submitted
them, otherwise future completion entries may overwrite ones we haven't
handled yet. Hold the nvme queue's poll lock while completing new CQEs to
prevent another thread from freeing command tags for reuse out-of-order.

Fixes: dabcefab45 ("nvme: provide optimized poll function for separate poll queues")
Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Keith Busch <kbusch@kernel.org>
2020-02-28 01:32:14 +09:00
..
host nvme-pci: Hold cq_poll_lock while completing CQEs 2020-02-28 01:32:14 +09:00
target nvmet: update AEN list and array at one place 2020-02-05 01:56:10 +09:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00