Re: [PATCH] workqueue: doc change for ST behavior on NUMA systems

From: Christoph Hellwig
Date: Tue Jul 18 2017 - 15:18:36 EST


On Tue, Jul 18, 2017 at 11:12:53AM -0700, Alexei Potashnik wrote:
> NUMA rework of workqueue made the combination of max_active of 1 and
> WQ_UNBOUND insufficient to guarantee ST behavior system wide.
>
> alloc_ordered_queue should now be used instead.

Eww. And how many existing users might be broken by that?