Date: Thu, 2 Oct 2008 07:26:50 -0700
From: Arjan van de Ven <arjan@infradead.org>
To: Jens Axboe <jens.axboe@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>, Andi Kleen <andi@firstfloor.org>,
       Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org,
       Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: Re: [PATCH] Give kjournald a IOPRIO_CLASS_RT io priority
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On Thu, 2 Oct 2008 15:47:37 +0200
Jens Axboe <jens.axboe@oracle.com> wrote:

> Yes, it'll report '0' which means 'not set'. The kernel inteprets 'not
> set' as the default values, BE/4. There's a big diffence, since '0'
> means that we track CPU nice values where as if it returned be/4 then
> that is a strict/fixed setting.

argh. "0" means both "not set" and "highest priority".

how about we fix this?

right now "query + set" isn't idempotent.....
it should be able to be that.


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
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