Bijan Mottahedeh 567b108c94 nvme-pci: Hold cq_poll_lock while completing CQEs ... commit 9515743bfb upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-03-05 16:43:46 +01:00
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host	nvme-pci: Hold cq_poll_lock while completing CQEs	2020-03-05 16:43:46 +01:00
target	nvmet: Pass lockdep expression to RCU lists	2020-02-24 08:37:01 +01:00
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