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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jeff Garzik <jeff@garzik.org>,
	linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: RESEND: [PATCH] libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
Date: Thu, 29 May 2008 21:18:49 +0100	[thread overview]
Message-ID: <20080529211849.59aafbc0@core> (raw)
In-Reply-To: <alpine.LFD.1.10.0805291245330.2958@woody.linux-foundation.org>

> The old function oopsed for the case that you worry about. That is WORSE 
> than anything else you can come up with. There is absolutely zero upside 
> to using that old and broken thing.

The worst case is uncaught data corruption. An oops is harmless in
comparison. Someone using altstatus to enforce DMA timing barriers and
getting nothing else will find their disk contents 'degraded'.

I'm just putting together a patch that removes ata_altstatus entirely
from public use, and that actually looks far nicer.

  reply	other threads:[~2008-05-29 20:33 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-29 16:25 RESEND: [PATCH] libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl Alan Cox
2008-05-29 17:04 ` Linus Torvalds
2008-05-29 17:46   ` Jeff Garzik
2008-05-29 18:04     ` Linus Torvalds
2008-05-29 18:13       ` Jeff Garzik
2008-05-29 18:29       ` Alan Cox
2008-05-29 18:19     ` Alan Cox
2008-05-29 21:13       ` Linus Torvalds
2008-05-29 21:19         ` Alan Cox
2008-05-29 18:02   ` Alan Cox
2008-05-29 18:25     ` Jeff Garzik
2008-05-29 18:38       ` Alan Cox
2008-05-29 19:46         ` Linus Torvalds
2008-05-29 20:18           ` Alan Cox [this message]
2008-05-29 18:42       ` Alan Cox
2008-05-29 19:31         ` Jeff Garzik
2008-05-29 21:10           ` [RFC PATCH] " Alan Cox
2008-05-29 21:37             ` Alan Cox
2008-05-29 21:57               ` Jeff Garzik
2008-05-29 21:57                 ` Alan Cox
2008-05-30 22:14             ` Jeff Garzik
2008-06-04 10:45             ` Jeff Garzik

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