From mboxrd@z Thu Jan  1 00:00:00 1970
From: Milan Broz <mbroz@redhat.com>
Subject: Re: Barrier support in device mapper
Date: Thu, 18 Sep 2008 20:34:49 +0200
Message-ID: <48D29F49.1050003@redhat.com>
References: <200809181127.37704.knikanth@suse.de> <48D1FBBE.4080305@redhat.com>
	<20080918134412.GK25711@one.firstfloor.org>
	<48D27D17.6040207@redhat.com>
	<20080918181311.GN25711@one.firstfloor.org>
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To: Andi Kleen <andi@firstfloor.org>
Cc: device-mapper development <dm-devel@redhat.com>, Alasdair G Kergon <agk@redhat.com>
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Andi Kleen wrote:
>> The mail I replied to contains links to all mentioned patches:
>>
>>> [1] http://lkml.org/lkml/2008/2/15/125
>>> [2] http://article.gmane.org/gmane.linux.kernel.device-mapper.devel/5941
> 
> That's just a description, where are the patches?

http://article.gmane.org/gmane.linux.kernel.device-mapper.devel/5942
http://article.gmane.org/gmane.linux.kernel.device-mapper.devel/5943
http://article.gmane.org/gmane.linux.kernel.device-mapper.devel/5944
http://article.gmane.org/gmane.linux.kernel.device-mapper.devel/5945

> Are they equivalent in the single disk case to my patch?
It transforms barrier to normal bio with following zero-size barrier bio.
For the one disk case effect is the same of course.

Milan