linux-kernel - Re: [PATCH 11/11] cpuset: export effective masks to userspace

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Message-ID: <20130823123400.GB10322@mtj.dyndns.org>
Date:	Fri, 23 Aug 2013 08:34:00 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Li Zefan <lizefan@...wei.com>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Cgroups <cgroups@...r.kernel.org>,
	Containers <containers@...ts.linux-foundation.org>
Subject: Re: [PATCH 11/11] cpuset: export effective masks to userspace

Hello,

On Fri, Aug 23, 2013 at 03:53:37PM +0800, Li Zefan wrote:
> It seems confusing if there're two interaces but they actually mean
> the same thing.
>
> Another reason I didn't do this is, they're not always the same. When
> !sane, If cpus_allowed is empty, effective_cpus is not empty, and you
> are not able to put tasks into this cpuset. So if we want to  expose
> it unconditionally, I'll make sure cpus_allowed == effective_cpus
> always stand when !sane.

Do you think that'll be convoluted?  Otherwise, sounds like a nice
thing to do anyway.

Thanks.

-- 
tejun
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