Messages in this thread | | | Subject | Re: [PATCH 3/3] blk-mq: Use llist_head for blk_cpu_done | From | Jens Axboe <> | Date | Sat, 31 Oct 2020 09:00:49 -0600 |
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On 10/31/20 4:41 AM, Sebastian Andrzej Siewior wrote: > On 2020-10-29 14:07:59 [-0700], Sagi Grimberg wrote: >>> in which context? >> >> Not sure what is the question. > > The question is in which context do you complete your requests. My guess > by now is "usually softirq/NAPI and context in rare error case".
There really aren't any rules for this, and it's perfectly legit to complete from process context. Maybe you're a kthread driven driver and that's how you handle completions. The block completion path has always been hard IRQ safe, but possible to call from anywhere.
-- Jens Axboe
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