zdtm: add ability to execute restore with the restore_sibling option

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

test/jenkins/criu-sibling.sh

+# Make 3 iteration of dump/restore for each test
+
+source `dirname $0`/criu-lib.sh &&
+prep &&
+make -C test -j 4 ZDTM_ARGS="-C --restore-sibling" zdtm &&
+true || fail

test/zdtm.sh

@@ -349,6 +349,7 @@ START_ONLY=0
 BATCH_TEST=0
 SPECIFIED_NAME_USED=0
 START_FROM="."
+RESTORE_SIBLING=""
 
 zdtm_sep()
 { (
@@ -639,6 +640,7 @@ run_test()
 	local gen_args=$*
 	local tname=`basename $test`
 	local tdir=`dirname $test`
+	local rst_args=
 	DUMP_PATH=""
 
 	if [ $COMPILE_ONLY -eq 1 ]; then
@@ -683,6 +685,10 @@ EOF
 		ps_args="--auto-dedup"
 	fi
 
+	if [ -n "$RESTORE_SIBLING" ]; then
+		rst_args="$rst_args --restore-sibling"
+	fi
+
 	if echo $tname | fgrep -q 'irmap'; then
 		gen_args="$gen_args --force-irmap"
 	fi
@@ -790,7 +796,7 @@ EOF
 			rm -f $TPID || true
 
 			echo Restore
-			setsid $CRIU restore -D $ddump -o restore.log -v4 -d $gen_args || return 2
+			setsid $CRIU restore -D $ddump -o restore.log -v4 -d $gen_args $rst_args || return 2
 			cat $ddump/restore.log* | grep Error
 
 			[ -n "$PIDNS" ] && PID=`cat $TPID`
@@ -1061,6 +1067,10 @@ while :; do
 		}
 		shift
 		;;
+	  --restore-sibling)
+		RESTORE_SIBLING=1
+		shift
+		;;
 	  -*)
 		echo "Unrecognized option $1, aborting!" 1>&2
 		usage