Date: Mon, 13 Apr 2015 10:50:52 -0400
From: Tejun Heo <tj@kernel.org>
To: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Cc: svaidy@linux.vnet.ibm.com, peterz@infradead.org, nacc@linux.vnet.ibm.com,
        rjw@rjwysocki.net, linux-kernel@vger.kernel.org, lizefan@huawei.com,
        anton@samba.org, bharata@linux.vnet.ibm.com, cgroups@vger.kernel.org,
        paulmck@linux.vnet.ibm.com, mingo@kernel.org, serge@hallyn.com
Subject: Re: [PATCH V2] cpuset: Add knob to make allowed masks hotplug
 invariant on legacy hierarchy
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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.

Thanks.

-- 
tejun
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