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

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Date:	Fri, 14 May 2010 08:51:44 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Lennart Poettering <mzxreary@...inter.de>
Cc:	Dhaval Giani <dhaval.giani@...il.com>,
	James Kosin <jkosin@...comgrp.com>,
	linux-kernel@...r.kernel.org, menage@...gle.com,
	balbir@...ux.vnet.ibm.com, jsafrane@...hat.com, tglx@...utronix.de
Subject: Re: [PATCH/RFC] Have sane default values for cpusets

On Fri, 2010-05-14 at 02:02 +0200, Lennart Poettering wrote:
> > Will it still work with a CONFIG_CGROUP=n kernel? I see distributions
> > deteriorate, you cannot even boot a raw bzImage kernel without initrd on
> > most distros (sure, its not too hard to fix, but still).
> 
> No it won't work without cgroups. 

I guess we'll finally have an answer for people on #kernelnewbies on
what distro is best suited for kernel development :-)


> > Requiring CONFIG_CGROUP=y to even get init running seems like a final
> > straw to ensure nobody will ever get anything to boot these days.
> 
> Well, I wasn't aware that cgroups is now in the kernel for the purpose
> that people should *not* use it.

Init using the bare minimum possible only seems like a sensible thing.
Once the basic stuff is running you can detect whats available and use
it if needed/wanted.

I very often build a CONFIG_CGROUP=n kernel, I simply strip down
my .config to the bare minimum because that builds fastest.


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