Date: Sun, 30 Dec 2007 23:03:11 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Rene Herman <rene.herman@keyaccess.nl>,
       Linus Torvalds <torvalds@linux-foundation.org>, dpreed@reed.com,
       Islam Amer <pharon@gmail.com>, hpa@zytor.com,
       Pavel Machek <pavel@ucw.cz>, Ingo Molnar <mingo@redhat.com>,
       Andi Kleen <andi@firstfloor.org>, Thomas Gleixner <tglx@linutronix.de>,
       Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override
Message-ID: <20071230220311.GE31386@elte.hu>
References: <alpine.LFD.1.00.0712300124440.32517@woody.linux-foundation.org> <20071230144700.78f4605c@the-village.bc.nu> <20071230152835.GX16946@elte.hu> <4777BDA5.4050203@keyaccess.nl> <20071230160751.GB26221@elte.hu> <4777C6E8.7060202@keyaccess.nl> <20071230170612.GA16502@elte.hu> <20071230182937.40f2adcf@the-village.bc.nu> <20071230204650.GA26120@elte.hu> <20071230212954.0b9d7706@the-village.bc.nu>
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* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> On Sun, 30 Dec 2007 21:46:50 +0100
> Ingo Molnar <mingo@elte.hu> wrote:
> 
> > well, using io_delay=udelay is not 'blindly disabling'. io_delay=none 
> > would be the end goal, once all _p() API uses are eliminated by 
> > transformation. 
> 
> io_delay = none is not the end goal. Correctness is the end goal.

the end goal will be for io_delay=none to be a NOP, because nothing will 
use the _p() ops anymore.

	Ingo
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