Re: [PATCH 1/9] workqueue: perform cpu down operations from lowpriority cpu_notifier()
From: Tejun Heo
Date: Fri Jul 20 2012 - 17:58:40 EST
On Fri, Jul 20, 2012 at 02:52:07PM -0700, Paul E. McKenney wrote:
> > Fix it by using different priorities for up and down notifiers - high
> > priority for up operations and low priority for down operations.
> This certainly provides another data point in favor of running down
> notifiers in the opposite order from up notifiers. ;-)
Yeah, I was thinking about that. I don't think converting CPU
notifiers would take a lot of work in terms of both auditing and
converting. We only have several priorities.
> This series passes light rcutorture/hotplug testing, will be testing
> it more.
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