From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeff Garzik <jeff@garzik.org>
Subject: Re: Scary Intel SATA problem: "frozen"
Date: Tue, 28 Nov 2006 19:38:20 -0500
Message-ID: <456CD67C.8050909@garzik.org>
References: <456CB72A.3010004@local.se> <Pine.LNX.4.64.0611281444330.4244@woody.osdl.org> <456CC4C5.6090003@garzik.org> <Pine.LNX.4.64.0611281531550.4244@woody.osdl.org>
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To: Linus Torvalds <torvalds@osdl.org>
Cc: Jonas Lundgren <jonas@local.se>, Tejun Heo <htejun@gmail.com>, linux-ide@vger.kernel.org

Linus Torvalds wrote:
> How hard would it be to just force a shared spinlock between two sata 
> channels on the same "controller"? It sounds like Jonas has a very 
> repeatable setup, so even if I can't repeat my problem, if the performance 
> degradation on writes is related, he can check his thing..


ap->host (struct ata_host) already has a spinlock for precisely just 
that...  :)

	Jeff