linux-kernel - Re: [PATCH 1/2] Avoid bio

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Message-ID: <20080703220449.20688451@lxorguk.ukuu.org.uk>
Date:	Thu, 3 Jul 2008 22:04:49 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Mikulas Patocka <mpatocka@...hat.com>
Cc:	Jens Axboe <jens.axboe@...cle.com>, linux-kernel@...r.kernel.org,
	Neil Brown <neilb@...e.de>
Subject: Re: [PATCH 1/2] Avoid bio_endio recursion

> I use the old IDE driver, I don't see a reason why driver should create 
> SCSI requests and lower layer translate them to ATA commands.

Because modern drives are basically SCSI devices. Once you turn on NCQ
and stuff you need all the midlayer queueing magic ...

Either way the bio thing wants fixing.
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