Re: [PATCH V2] cpuset: Add knob to make allowed masks hotplug invariant on legacy hierarchy

From: Peter Zijlstra
Date: Mon Apr 13 2015 - 11:05:31 EST

On Mon, Apr 13, 2015 at 10:50:52AM -0400, Tejun Heo wrote:
> On Fri, Apr 10, 2015 at 07:41:52PM +0530, Preeti U Murthy wrote:
> > Moreover the default hierarchy keeps the allowed masks hotplug invariant
> > too. So the patch is not bringing about a fundamental change in the
> > design of cgroups.
> This is gonna be a new behavior anyway and I don't follow why you just
> can't use the default hierarchy (well, of course except for that it
> isn't ready yet but no matter what we do this is gonna take another
> devel cycle so what's the difference?). It's not like the default
> hierarchy requires invasive changes. I'm not convinced this calls for
> yet another operation mode.

So TJ and me don't often seem to agree on cgroup stuffs, but here we do
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