[PATCH for-v7.5 13/14] rcutorture: Disable RCU priority boost testing on non-TREE03 scenarios

[Joel Fernandes <jfern@kernel.org>]

From: "Paul E. McKenney" <paulmck@kernel.org>

The TREE03 scenario has been configured to permit testing of RCU
priority boosting, including setting RCU kthead priorities to 2.
But now that RCU priority boosting is default for preemptible kernels,
it is now automatically tested for TREE01, TREE02, TREE08, and TREE09,
none of which have RCU kthread priorities set up for such testing.
One approach would be to set up these scenarios' kthread priorities,
but this would fail to test common-case kernels having default priorities.

This commit therefore disables the testing of RCU priority boosting
except on scenario TREE03, which is set up properly for this purpose,
though rather unrealistically.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes <jfern@kernel.org>
---
 tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot | 1 +
 tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot | 1 +
 tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot | 1 +
 tools/testing/selftests/rcutorture/configs/rcu/TREE09.boot | 1 +
 4 files changed, 4 insertions(+)
 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/TREE09.boot

diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
index 1cc5b47dde28..73d51d869fd5 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
@@ -6,3 +6,4 @@ rcu_nocbs=0-1,3-7
 rcutorture.nocbs_nthreads=8
 rcutorture.nocbs_toggle=1000
 rcutorture.fwd_progress=0
+rcutorture.test_boost=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot
index dd914fa8f690..f2ca5d812f3f 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot
@@ -1 +1,2 @@
 rcutorture.fwd_progress=2
+rcutorture.test_boost=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
index 94d38445d393..41c3264f8e8c 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
@@ -1,3 +1,4 @@
 rcupdate.rcu_self_test=1
 rcutree.rcu_fanout_exact=1
 rcu_nocbs=all
+rcutorture.test_boost=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE09.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE09.boot
new file mode 100644
index 000000000000..1f52e460e14a
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE09.boot
@@ -0,0 +1 @@
+rcutorture.test_boost=0
-- 
2.54.0