linux-kernel - Re: [PATCH/RFC] Have sane default values for cpusets

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Message-ID: <1273833535.1626.242.camel@laptop>
Date:	Fri, 14 May 2010 12:38:55 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	balbir@...ux.vnet.ibm.com
Cc:	Lennart Poettering <mzxreary@...inter.de>,
	Dhaval Giani <dhaval.giani@...il.com>,
	James Kosin <jkosin@...comgrp.com>,
	linux-kernel@...r.kernel.org, menage@...gle.com,
	jsafrane@...hat.com, tglx@...utronix.de
Subject: Re: [PATCH/RFC] Have sane default values for cpusets

On Fri, 2010-05-14 at 13:42 +0530, Balbir Singh wrote:

> Heh! agreed, but we are a small population and moreover a large
> population would benefit from systemd and parallel boot.

CONFIG_CGROUP=y isn't a requirement for parallel boot. People have been
doing that for years without it.

And I'm not against systemd using cgroups per-se, I'm against it
mandating it. It could simply not use them and not provide whatever it
needs them for when not present.

CONFIG_CGROUP is an option, so people can say no. 

Same for CONFIG_SYSFS, udev gets highly unhappy when disabled, but init
still works and you do get a shell of some sort. If you pre-populate
your /dev with static device nodes you can actually make it all the way
to runlevel 3 the last time I tried.

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