From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nikanth Karthikesan <knikanth@suse.de>
Subject: Barrier support in device mapper
Date: Thu, 18 Sep 2008 11:27:37 +0530
Message-ID: <200809181127.37704.knikanth@suse.de>
Reply-To: device-mapper development <dm-devel@redhat.com>
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To: Alasdair G Kergon <agk@redhat.com>
Cc: device-mapper development <dm-devel@redhat.com>, Andi Kleen <andi@firstfloor.org>, Milan Broz <mbroz@redhat.com>
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Hi Alasdair

What are plans in supporting barriers in device mapper?

Sometime back Andi Kleen posted a patch[1] to support barriers for single-
device dm-devices.

Recently Milan Broz posted an RFC patch-set[2] to implement full-barrier 
support.

Are we going to get full-barrier support soon? If not, I would like to see 
Andi's patch being merged till we get full barrier support ready. I would like 
to know your thoughts.

Thanks
Nikanth Karthikesan
SUSE Labs

[1] http://lkml.org/lkml/2008/2/15/125
[2] http://article.gmane.org/gmane.linux.kernel.device-mapper.devel/5941