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

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Message-ID: <20150415153035.GA25390@mail.hallyn.com>
Date:	Wed, 15 Apr 2015 10:30:35 -0500
From:	"Serge E. Hallyn" <serge@...lyn.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"Serge E. Hallyn" <serge@...lyn.com>,
	Preeti U Murthy <preeti@...ux.vnet.ibm.com>, tj@...nel.org,
	svaidy@...ux.vnet.ibm.com, nacc@...ux.vnet.ibm.com,
	rjw@...ysocki.net, linux-kernel@...r.kernel.org,
	lizefan@...wei.com, anton@...ba.org, bharata@...ux.vnet.ibm.com,
	cgroups@...r.kernel.org, paulmck@...ux.vnet.ibm.com,
	mingo@...nel.org
Subject: Re: [PATCH V2] cpuset: Add knob to make allowed masks hotplug
 invariant on legacy hierarchy

On Wed, Apr 15, 2015 at 05:19:26PM +0200, Peter Zijlstra wrote:
> On Wed, Apr 15, 2015 at 10:03:02AM -0500, Serge E. Hallyn wrote:
> 
> > Peter, is the question "why can't we just use the unified hierarchy for
> > cpusets"?
> 
> No, the question is why can't you use the unified hierarchy cpuset
> semantics -- without the actual unified hierarchy stuff.

Ok - that I don't know the answer to.  Does sound like it would
simplify things, reduce # of sets of semantics.
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