Messages in this thread | | | Subject | Re: [GIT pull] irq updates for 4.13 | From | Jens Axboe <> | Date | Tue, 4 Jul 2017 09:17:17 -0600 |
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On 07/03/2017 06:00 PM, Linus Torvalds wrote: > But I'd like people to look at that - not so much due to the evil > merge itself (but check that too, by any means), but just because the > code seems fundamentally broken for the hotplug case. We end up > picking a possible metric shit-ton of CPU's for queue 0, if they were > "possible but not online". > > If they ever do come online, does that get fixed? I don't know. > Somebody should check.
Yes, the blk-mq cpu hotplug code updates mappings when CPUs come and go, so that part is fine. That's exercised everytime the laptop is suspended and resumed.
-- Jens Axboe
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