Add new rcutorture config NOCB02 that enables rcu_nocb_poll boot parameter combined with CONFIG_RCU_NOCB_CPU to exercise the polling mode code paths in the NOCB implementation.
This config exercises poll-mode paths not covered by other configs, where callback invocation uses active polling instead of kthread wakeups. This config is not added to CFLIST to avoid increasing the default test duration; it can be run explicitly when poll-mode testing is needed. Signed-off-by: Joel Fernandes <[email protected]> --- .../selftests/rcutorture/configs/rcu/NOCB02 | 20 +++++++++++++++++++ .../rcutorture/configs/rcu/NOCB02.boot | 3 +++ 2 files changed, 23 insertions(+) create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/NOCB02 create mode 100644 tools/testing/selftests/rcutorture/configs/rcu/NOCB02.boot diff --git a/tools/testing/selftests/rcutorture/configs/rcu/NOCB02 b/tools/testing/selftests/rcutorture/configs/rcu/NOCB02 new file mode 100644 index 000000000000..4c2b8cd6d8fd --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/rcu/NOCB02 @@ -0,0 +1,20 @@ +CONFIG_SMP=y +CONFIG_NR_CPUS=8 +CONFIG_PREEMPT_NONE=n +CONFIG_PREEMPT_VOLUNTARY=n +CONFIG_PREEMPT=y +#CHECK#CONFIG_PREEMPT_RCU=y +CONFIG_HZ_PERIODIC=n +CONFIG_NO_HZ_IDLE=y +CONFIG_NO_HZ_FULL=n +CONFIG_RCU_TRACE=y +CONFIG_HOTPLUG_CPU=y +CONFIG_RCU_FANOUT=3 +CONFIG_RCU_FANOUT_LEAF=2 +CONFIG_RCU_NOCB_CPU=y +CONFIG_DEBUG_LOCK_ALLOC=n +CONFIG_PROVE_LOCKING=n +CONFIG_RCU_BOOST=n +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n +CONFIG_RCU_EXPERT=y +CONFIG_RCU_EQS_DEBUG=y diff --git a/tools/testing/selftests/rcutorture/configs/rcu/NOCB02.boot b/tools/testing/selftests/rcutorture/configs/rcu/NOCB02.boot new file mode 100644 index 000000000000..c212ae299b0b --- /dev/null +++ b/tools/testing/selftests/rcutorture/configs/rcu/NOCB02.boot @@ -0,0 +1,3 @@ +rcupdate.rcu_self_test=1 +rcu_nocbs=all +rcu_nocb_poll -- 2.34.1
