linux-kernel - Re: boot cgroup questions

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Message-ID: <6599ad830803111936jd940deam8584bc971c3b6f41@mail.gmail.com>
Date:	Tue, 11 Mar 2008 19:36:36 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	"Max Krasnyansky" <maxk@...lcomm.com>
Cc:	"Paul Jackson" <pj@....com>, "Ingo Molnar" <mingo@...e.hu>,
	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: boot cgroup questions

On Tue, Mar 11, 2008 at 7:34 PM, Max Krasnyansky <maxk@...lcomm.com> wrote:
>
>  Suppose we were to do it from kernel. What's the right way to create a cgroup
>  without mounting a cgroupfs ?

There isn't really a way, but you could always kern_mount() a
filesystem inside the kernel.

>  I just want to play with it. There are a couple of advantages that I see for
>  doing it from kernel. We can move 'kthreadd' and idle threads into the 'boot'
>  cgroup early on and therefor later on won't even have to iterate through the
>  tasks and stuff.

Would this be done based on some boot commandline option? I don't
think you'd want to do it unconditionally.

Paul
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