linux-kernel - Re: [PATCH 0/4] CPU hotplug, cpusets: Fix CPU online handling related to cpusets

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Date:	Fri, 10 Feb 2012 16:53:29 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	"Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
Cc:	Ingo Molnar <mingo@...e.hu>, paul@...lmenage.org, rjw@...k.pl,
	tj@...nel.org, frank.rowand@...sony.com, pjt@...gle.com,
	tglx@...utronix.de, lizf@...fujitsu.com,
	prashanth@...ux.vnet.ibm.com, paulmck@...ux.vnet.ibm.com,
	vatsa@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>
Subject: Re: [PATCH 0/4] CPU hotplug, cpusets: Fix CPU online handling
 related to cpusets

On Thu, 2012-02-09 at 14:12 +0530, Srivatsa S. Bhat wrote:
> 
> So, from my point of view, cpusets seems to be handling CPU Offline pretty
> well, and correctly too. The corresponding CPU online handling is what is
> buggy, IMHO, and that is what I intended to fix with this patchset. 

No, online is not buggy, since offline is destructive of the cpuset
state (it has to) you cannot undo it.



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