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

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Message-ID: <20150415161811.GD30337@htj.duckdns.org>
Date:	Wed, 15 Apr 2015 12:18:11 -0400
From:	Tejun Heo <tj@...nel.org>
To:	"Serge E. Hallyn" <serge@...lyn.com>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Preeti U Murthy <preeti@...ux.vnet.ibm.com>,
	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 11:15:35AM -0500, Serge E. Hallyn wrote:
> The reason would be because it breaks "legacy" software.  So that
> would only matter if Preeti needs to run such software.

Sure, I get that argument but this is changing how the contorller
behaves in a major way.  There are specifics which may make this
particular case more justifiable but overall the combination of
arguments is pretty weird.

Thanks.

-- 
tejun
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