linux-kernel - Re: [RFC] cpuset: add interface to isolated cpus

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Message-Id: <20061022230659.7497e3bf.pj@sgi.com>
Date:	Sun, 22 Oct 2006 23:06:59 -0700
From:	Paul Jackson <pj@....com>
To:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>
Cc:	nickpiggin@...oo.com.au, dino@...ibm.com, akpm@...l.org,
	mbligh@...gle.com, menage@...gle.com, Simon.Derr@...l.net,
	linux-kernel@...r.kernel.org, rohitseth@...gle.com, holt@....com,
	dipankar@...ibm.com, suresh.b.siddha@...el.com
Subject: Re: [RFC] cpuset: add interface to isolated cpus

Suresh wrote:
> Also we need to be careful with malicious users partitioning the systems wrongly
> based on the cpus_allowed for their tasks.

Untrusted users can't do that.  On big systems where you have
untrusted users, you stick them in smaller cpusets.  Their
cpus_allowed is not allowed to exceed what's allowed in their
cpuset.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.925.600.0401
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