From e5cfc69a513cdc9d9e753c5ce07f0cc6b496bfd3 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Mon, 6 Oct 2014 15:24:55 +0100
Subject: [PATCH] dm thin metadata: change dm_thin_find_block to allow
 blocking, but not issuing, IO

This change is a prerequisite for allowing metadata to be prefetched.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Reading git-format-patch failed