tests: pvmove better delay check

Improve testing for condition that pvmove0 is already running in the
table (so we do not kill pvmove while it has loaded target, but
it's not yet Live).

Also delay_dev for 200ms.

test/shell/lvresize-rounding.sh

@@ -11,7 +11,6 @@
 
 . lib/inittest
 
-# 15 extents
 aux prepare_pvs 3 22
 
 vgcreate -s 32K $vg $(cat DEVICES)

test/shell/pvmove-restart.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-# Copyright (C) 2013 Red Hat, Inc. All rights reserved.
+# Copyright (C) 2013-2015 Red Hat, Inc. All rights reserved.
 #
 # This copyrighted material is made available to anyone wishing to use,
 # modify, copy, or redistribute it subject to the terms and conditions
@@ -29,12 +29,16 @@ lvextend -l+5 $vg/$lv1 "$dev1"
 lvextend -l+10 $vg/$lv1 "$dev2"
 
 # Slowdown writes
-aux delay_dev "$dev3" 0 100
+aux delay_dev "$dev3" 0 200
 
 pvmove -i0 -n $vg/$lv1 "$dev1" "$dev3" $mode &
 PVMOVE=$!
 # Let's wait a bit till pvmove starts and kill it
-while not dmsetup status "$vg-pvmove0"; do sleep .1; done
+while : ; do
+	dmsetup info -c -o tables_loaded "$vg-pvmove0" > out || true;
+	not grep Live out || break
+	sleep .1
+done
 kill -9 $PVMOVE
 wait