Date: Fri, 11 Feb 2005 00:58:32 -0800
From: Matt Mackall <mpm@selenic.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Paul Davis <paul@linuxaudiosystems.com>,
       Peter Williams <pwil3058@bigpond.net.au>,
       Nick Piggin <nickpiggin@yahoo.com.au>, Chris Wright <chrisw@osdl.org>,
       "Jack O'Quin" <jack.oquin@gmail.com>, Andrew Morton <akpm@osdl.org>,
       Christoph Hellwig <hch@infradead.org>, linux-kernel@vger.kernel.org,
       Con Kolivas <kernel@kolivas.org>, rlrevell@joe-job.com
Subject: Re: 2.6.11-rc3-mm2
Message-ID: <20050211085832.GH15058@waste.org>
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On Fri, Feb 11, 2005 at 09:48:43AM +0100, Ingo Molnar wrote:
> 
> * Matt Mackall <mpm@selenic.com> wrote:
> 
> > Here's Chris' patch for reference:
> > 
> > http://groups-beta.google.com/group/linux.kernel/msg/6408569e13ed6e80
> 
> how does this patch solve the separation of 'negative nice values' and
> 'RT priority rlimits'? In one piece of code it handles the rlimit value
> as a 0-39 nice value, in another place it handles it as a limit for a
> 1-100 RT priority range. The two ranges overlap and have nothing to do
> with each other. [*]

Read more closely: there are two independent limits in the patch,
RLIMIT_NICE and RLIMIT_RTPRIO. This lets us grant elevated nice
without SCHED_FIFO.

-- 
Mathematics is the supreme nostalgia of our time.
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