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authorPaul E. McKenney <paulmck@kernel.org>2022-03-17 23:18:27 +0100
committerPaul E. McKenney <paulmck@kernel.org>2022-04-21 01:53:19 +0200
commit3b6e1dd42317ec366dab3205f99280e2ab1ad85a (patch)
treed755da20405895b062ae9a3a8a85da2b5cc35455 /tools/testing/selftests/rcutorture/configs
parentrcutorture: Allow rcutorture without RCU Tasks Trace (diff)
downloadlinux-3b6e1dd42317ec366dab3205f99280e2ab1ad85a.tar.xz
linux-3b6e1dd42317ec366dab3205f99280e2ab1ad85a.zip
rcutorture: Allow rcutorture without RCU Tasks
Currently, a CONFIG_PREEMPT_NONE=y kernel substitutes normal RCU for RCU Tasks. Unless that kernel builds rcutorture, whether built-in or as a module, in which case RCU Tasks is (unnecessarily) used. This both increases kernel size and increases the complexity of certain tracing operations. This commit therefore decouples the presence of rcutorture from the presence of RCU Tasks. However, there is a need to select CONFIG_TASKS_RCU for testing purposes. Except that casual users must not be bothered with questions -- for them, this needs to be fully automated. There is thus a CONFIG_FORCE_TASKS_RCU that selects CONFIG_TASKS_RCU, is user-selectable, but which depends on CONFIG_RCU_EXPERT. [ paulmck: Apply kernel test robot feedback. ] Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/testing/selftests/rcutorture/configs')
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TASKS011
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TASKS023
-rw-r--r--tools/testing/selftests/rcutorture/configs/rcu/TASKS032
3 files changed, 6 insertions, 0 deletions
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
index 3ca112444ce7..d84801b9a7ae 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
@@ -7,4 +7,5 @@ CONFIG_PREEMPT=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
#CHECK#CONFIG_PROVE_RCU=y
+CONFIG_TASKS_RCU=y
CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02
index ad2be91e5ee7..d333b69bc831 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02
@@ -2,3 +2,6 @@ CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
+#CHECK#CONFIG_TASKS_RCU=y
+CONFIG_FORCE_TASKS_RCU=y
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
index dc02083803ce..dea26c568678 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
@@ -7,3 +7,5 @@ CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=y
#CHECK#CONFIG_RCU_EXPERT=n
+CONFIG_TASKS_RCU=y
+CONFIG_RCU_EXPERT=y