#!/bin/bash
set -e

trap 'exit 127' 0

. ./config
./cleanup

modprobe dm-snapshot ||:

#dd if=/dev/zero of=/dev/$lvcowdata bs=512 count=$adt_filesys_cowchunk status=noxfer

bdsize=$(blockdev --getsize $lvbase)
dmsetup create $nsnap <<END
0 $bdsize snapshot $lvbase $lvcowdata n $adt_filesys_cowchunk
END

mkdir -p /dev/${pfx}_fs
ln -s $lvsnap $lvfsptr

xm restore $play/xen-save
xm mem-set $xmname $adt_testbed_ram
udevsettle

set +e
"$@"
rc=$?
set -e

xm destroy $xmname
dmsetup remove $nsnap

trap '' 0
exit $rc