linux-kernel - Re: [PATCH] cgroup: Add new capability to allow a process to migrate other tasks between cgroups

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Message-ID: <20161019205251.GG3044@htj.duckdns.org>
Date:   Wed, 19 Oct 2016 16:52:51 -0400
From:   Tejun Heo <tj@...nel.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     Michael Kerrisk <mtk.manpages@...il.com>,
        Andy Lutomirski <luto@...capital.net>,
        lkml <linux-kernel@...r.kernel.org>,
        Li Zefan <lizefan@...wei.com>,
        Jonathan Corbet <corbet@....net>,
        "open list:CONTROL GROUP (CGROUP)" <cgroups@...r.kernel.org>,
        Android Kernel Team <kernel-team@...roid.com>,
        Rom Lemarchand <romlem@...roid.com>,
        Colin Cross <ccross@...roid.com>,
        Dmitry Shmidt <dimitrysh@...gle.com>,
        Ricky Zhou <rickyz@...omium.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Todd Kjos <tkjos@...gle.com>,
        Christian Poetzsch <christian.potzsch@...tec.com>,
        Amit Pundir <amit.pundir@...aro.org>,
        "Serge E . Hallyn" <serge@...lyn.com>,
        Linux API <linux-api@...r.kernel.org>
Subject: Re: [PATCH] cgroup: Add new capability to allow a process to migrate
 other tasks between cgroups

Hello,

On Tue, Oct 18, 2016 at 09:54:37AM -0700, John Stultz wrote:
> > Also, CAP_SYS_RESOURCE deserves consideration (34 uses in capable()
> > checks). I'd say, since cgroups are about resources, so there's
> > something of a match there., so it's also worth considering.
> 
> I'll try to look into CAP_SYS_RESOURCE.
> 
> Colin/Todd: Any objection from the Android side on CAP_SYS_RESOURCE?
> 
> (Or we could just create a new 512bit CAP2_ capabilities interface! :P)

FWIW, if CAP_SYS_RESOURCE works, I'd be happy with that.

Thanks.

-- 
tejun