#!/bin/bash

retry=3
sec=1

if  [ $# -eq 1 ]
then
	while [ ! -e $1 -a "$retry" -gt 0 ]
	do
		retry=$(($retry - 1))
		sleep $sec
	done
	[ -e $1 ]
	ret=$?
	exit $ret
fi

/sbin/dmsetup info -c --noheadings -j $1 -m $2 2> /dev/null | grep -q .*:${1}:${2}:L.*:.*:.*:.*:.*
ret=$?

while [ "$ret" -ne 0 -a "$retry" -gt 0 ]
do
        sleep $sec
        /sbin/dmsetup info -c --noheadings -j $1 -m $2 2> /dev/null | grep -q .*:${1}:${2}:L.*:.*:.*:.*:.*
        ret=$?
        retry=$(($retry - 1))
done

exit $ret