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Subject: Re: [PATCH] sched/rt: fix SCHED_RR across cgroups
From: Steven Rostedt <rostedt@goodmis.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Dario Faggioli <raistlin@linux.it>, Colin Cross <ccross@android.com>,
        linux-kernel@vger.kernel.org, Ingo Molnar <mingo@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>, Hillf Danton <dhillf@gmail.com>,
        "Paul E. McKenney" <paulmck@us.ibm.com>
Date: Fri, 25 May 2012 09:12:06 -0400
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On Fri, 2012-05-25 at 13:52 +0200, Peter Zijlstra wrote:
> On Wed, 2012-05-23 at 15:32 +0200, Dario Faggioli wrote:
> > Again, I really think it is the intended behaviour, and yes, real-time
> > group scheduling "breaks" the POSIX specification of the SCHED_{FIFO,RR}
> > policies intentionally (and _proudly_, as Peter would say it, am I
> > wrong? :-P). 
> 
> No, cgroups are well outside of POSIX ;-) as is SMP in fact.

That's because the POSIX standards committee is still struggling to come
up with standardized SMP calls to handle NR_CPUS = 0

Isn't Paul on that committee? ;-)

-- Steve