linux-kernel - Re: boot cgroup questions

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Message-ID: <47D82AD2.1070108@qualcomm.com>
Date:	Wed, 12 Mar 2008 12:11:14 -0700
From:	Max Krasnyanskiy <maxk@...lcomm.com>
To:	Paul Jackson <pj@....com>
CC:	menage@...gle.com, mingo@...e.hu, a.p.zijlstra@...llo.nl,
	linux-kernel@...r.kernel.org
Subject: Re: boot cgroup questions

Paul Jackson wrote:
> Max K wrote:
>> How is that any different from tasks ? Exact same example right back at you.
>> Suppose I have a task that needs to run in A and B but not C.
> 
> Can't happen.
Of course it can. See below.

> Each task belongs to exactly one cpuset, no exceptions.
Sure. Same for irqs.

> That's why you can't "treat irqs just like tasks".
Sure you can.

I was talking about running on the _cpus_ that belong to the "sets A and B but 
not C" and not that a task must belong to more than one cpuset. Unless I 
misinterpreted your example you were talking about exact same thing. In other 
words that an irq needs to assigned to the _cpus_ in the sets A and B but not C.
Makes sense ?

Max


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