Re: [PATCH] cpuset: Make cpuset hotplug synchronous

From: Peter Zijlstra
Date: Wed Feb 12 2020 - 16:32:53 EST


On Wed, Feb 12, 2020 at 04:18:32PM -0500, Tejun Heo wrote:
> On Sat, Feb 01, 2020 at 08:33:34AM +0530, Prateek Sood wrote:
> > Hi Tejun & Peter,
> >
> > Could you please share your feedback on this patch for making
> >
> > cpuset_hotplug_workfn synchronous.
>
> Hey, IIRC, we went back forth with this several times. Unless there's
> a pressing reason to change, I'd rather leave it alone.

I think I have a similar patch in one of the many in-progress series I
keep around; IIRC it is the one where I add per-cpu support to
SCHED_DEADLINE. The hotplug accounting becomes easier if we do this.

Sadly this series is fairly low on the todo list atm though :/ I have no
problems keeping it around until such a time though.