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4c75f87785
A paused controller is doing critical internal activation work in the background. Prevent subsequent controller resets from occurring during this period by setting the controller state to RESETTING first. A helper function, nvme_try_sched_reset_work(), is introduced for these paths so they may continue with scheduling the reset_work after they've completed their uninterruptible critical section. Tested-by: Edmund Nadolski <edmund.nadolski@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Keith Busch <kbusch@kernel.org>