rcutorture: Add --buildonly dry-run capability

This commit adds --buildonly, which does the builds specified by the
--configs argument, but does not boot or test the resulting kernels.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Greg KH <gregkh@linuxfoundation.org>

diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
index 93342f7..3df1581 100755 (executable)
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh
@@ -141,6 +141,11 @@ boot_args="`rcutorture_param_n_barrier_cbs "$boot_args"`"
 boot_args="$boot_args rcutorture.stat_interval=15 rcutorture.shutdown_secs=$seconds rcutorture.rcutorture_runnable=1"
 
 echo $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
+if test -n "$RCU_BUILDONLY"
+then
+       echo Build-only run specified, boot/test omitted.
+       exit 0
+fi
 $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append "$qemu_append $boot_args" &
 qemu_pid=$!
 commandcompleted=0

diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index 979c341..6c67d0c 100644 (file)
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -41,6 +41,7 @@ kversion=""
 usage () {
        echo "Usage: $scriptname optional arguments:"
        echo "       --builddir absolute-pathname"
+       echo "       --buildonly"
        echo "       --configs \"config-file list\""
        echo "       --datestamp string"
        echo "       --duration minutes"
@@ -83,6 +84,9 @@ do
                gotbuilddir=1
                shift
                ;;
+       --buildonly)
+               RCU_BUILDONLY=1; export RCU_BUILDONLY
+               ;;
        --configs)
                checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
                configs="$2"