From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jens Axboe <axboe@suse.de>
Subject: Re: [linux-lvm] Re: [PATCH] 2.5 version of device mapper submission
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Date: Tue Oct 15 04:00:22 2002
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To: Joe Thornber <joe@fib011235813.fsnet.co.uk>
Cc: Austin Gonyou <austin@coremetrics.com>, linux-lvm@sistina.com, Alan Cox <alan@lxorguk.ukuu.org.uk>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>

On Mon, Oct 14 2002, Joe Thornber wrote:
> 10.patch
>   [Device-mapper]
>   Add call to blk_queue_bounce() at the beginning of the request function.

What on earth for? I also see that you are setting BLK_BOUNCE_HIGH as
the bounce limit unconditionally for your queue. Puzzled.

When does dm even have to touch the data in the bio?

-- 
Jens Axboe