From 4f81a4176297db57c7ef3b2893092dd837c1e2a8 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 12 Oct 2012 21:02:13 +0100
Subject: [PATCH] dm thin: move bio_prison code to separate module

The bio prison code will be useful to other future DM targets so
move it to a separate module.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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