nvme: refactor nvme_queue_rq
This "backports" the structure I've used for the fabrics driver. It mostly started out as a cleanup so that I could actually understand the code, but I think it also qualifies as a micro-optimization due to the reduced time we hold q_lock and disable interrupts. Signed-off-by:Christoph Hellwig <hch@lst.de> Signed-off-by:
Keith Busch <keith.busch@intel.com> Signed-off-by:
Jens Axboe <axboe@fb.com>
parent
69d2b571
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