From 599cdf3bfbe21fe94f4416c9e54363b285c9532a Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 14 Mar 2014 18:42:12 -0400
Subject: [PATCH] dm snapshot: allocate a per-target structure for
 snapshot-origin target

Allocate a per-target dm_origin structure.  This is a prerequisite for
the next commit ("dm snapshot: do not split read bios sent to
snapshot-origin target") which adds a new member to this structure.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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