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950210c9c7
[ Upstream commit8448828216] This reverts commitd06923670b. It was realized that the fix implemented to contain the race condition among the keep alive task and the fabric shutdown code path in the commit d06923670b5ia ("nvme: make keep-alive synchronous operation") is not optimal. The reason being keep-alive runs under the workqueue and making it synchronous would waste a workqueue context. Furthermore, we later found that the above race condition is a regression caused due to the changes implemented in commita54a93d0e3("nvme: move stopping keep-alive into nvme_uninit_ctrl()"). So we decided to revert the commitd06923670b("nvme: make keep-alive synchronous operation") and then fix the regression. Link: https://lore.kernel.org/all/196f4013-3bbf-43ff-98b4-9cb2a96c20c2@grimberg.me/ Reviewed-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Signed-off-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>