torture: Permit kvm-again.sh --duration to default to previous run

Currently, invoking kvm-again.sh without a --duration argument results
in a bash error message.  This commit therefore adds quotes around the
$dur argument to kvm-transform.sh to allow a default duration to be
taken from the earlier run.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-again.sh b/tools/testing/selftests/rcutorture/bin/kvm-again.sh
index 8a968fb..88ca4e3 100755 (executable)
--- a/tools/testing/selftests/rcutorture/bin/kvm-again.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-again.sh
@@ -193,7 +193,7 @@ do
        qemu_cmd_dir="`dirname "$i"`"
        kernel_dir="`echo $qemu_cmd_dir | sed -e 's/\.[0-9]\+$//'`"
        jitter_dir="`dirname "$kernel_dir"`"
-       kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" $dur "$bootargs" < $T/qemu-cmd > $i
+       kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" "$dur" "$bootargs" < $T/qemu-cmd > $i
        if test -n "$arg_remote"
        then
                echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i