[PATCH tip/core/rcu 18/28] rcutorture: Add --buildonly dry-run capability

[Paul E. McKenney]

From: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxxx>
Cc: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh | 5 +++++
 tools/testing/selftests/rcutorture/bin/kvm.sh            | 4 ++++
 2 files changed, 9 insertions(+)

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 93342f7ce6d5..3df1581e78ae 100755
--- 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 979c34134634..6c67d0ca8c9a 100644
--- 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"
-- 
1.8.1.5

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