linux-kernel - Re: [PATCH 2.6.19 2/3] sata

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Date:	Sun, 03 Dec 2006 15:16:07 +0100
From:	Arjan van de Ven <arjan@...radead.org>
To:	Tejun Heo <htejun@...il.com>
Cc:	Jeff Garzik <jeff@...zik.org>, Mikael Pettersson <mikpe@...uu.se>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.19 2/3] sata_promise: new EH conversion


> But, having those flushes won't hurt either.  What was the conclusion of
> mmio <-> spinlock sync discussion?  I always feel kind of uncomfortable
> about readl() flushes.  I think they're too subtle.

those are orthogonal!
The posting flushes have nothing to do with spinlock-vs-mmio; that
discussion was about the CPU, while posting flushes are about the
chipset / bridges / etc....

> 
-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
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