From c0d83ef84b701805e6bb3a27447975ec0badb346 Mon Sep 17 00:00:00 2001
From: Marek Marczykowski <marmarek@invisiblethingslab.com>
Date: Thu, 29 Sep 2011 13:56:29 +0200
Subject: [PATCH] dom0+vm: make sure that block backend module is loaded when
 needed (#226)

---
 common/block_add_change | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/common/block_add_change b/common/block_add_change
index f2f3a48..a9f7e06 100755
--- a/common/block_add_change
+++ b/common/block_add_change
@@ -27,3 +27,6 @@ if [ "$ID_TYPE" = "cd" ]; then
     MODE=r
 fi
 xenstore-write "$XS_KEY/desc" "$DESC" "$XS_KEY/size" "$SIZE" "$XS_KEY/mode" "$MODE"
+
+# Make sure that block backend is loaded
+modprobe xen-blkback 2> /dev/null || modprobe blkbk