linux-kernel - Re: [PATCH][DOCUMENTATION] Minimal controller code for a quick start

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Message-Id: <1202416137.6274.42.camel@lappy>
Date:	Thu, 07 Feb 2008 21:28:57 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Pavel Emelyanov <xemul@...nvz.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Paul Menage <menage@...gle.com>,
	Linux Containers <containers@...ts.osdl.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH][DOCUMENTATION] Minimal controller code for a quick
	start


On Thu, 2008-02-07 at 18:37 +0300, Pavel Emelyanov wrote:
> The Documentation/cgroups.txt file contains the info on how
> to write some controller for cgroups subsystem, but even with
> this, one need to write quite a lot of code before developing
> the core (or copy-n-paste it from some other place).
> 
> I propose to put this minimal controller into Documentation
> directory to let people copy-n-paste a) from a known place and 
> b) a small piece of code.
> 
> Besides, many people learn better reading an example rather
> than/along with a document.


While on the subject, could someone document struct cgroup_subsys. In
particular, I've wondered why we have: cgroup_subsys::can_attach() and
not use a return value in cgroup_subsys::attach()?



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