Hi Keith,

On 3/4/20 10:12 AM, Keith Busch wrote:

Completion handling had been done in two steps: find all new completions
under a lock, then handle those completions outside the lock. This was
done to make the locked section as short as possible so that other
threads using the same lock wait less time.

The driver no longer shares locks during completion, and is in fact
lockless for interrupt driven queues, so the optimization no longer

About "no longer shares locks", would you mind share is it a specific nvme
driver commit, or the transition from sq to mq?

Thank you very much!

Dongli Zhang

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