From e4c938111f25dbbf2579e65ce4a7cb2d20a59308 Mon Sep 17 00:00:00 2001
From: Alasdair G Kergon <agk@redhat.com>
Date: Fri, 1 Mar 2013 22:45:47 +0000
Subject: [PATCH] dm: refactor bio cloning

Refactor part of the bio splitting and cloning code to try to make it
easier to understand.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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