> On Feb 25, 2026, at 4:47 PM, Paul E. McKenney <[email protected]> wrote: > > On Tue, Feb 24, 2026 at 06:04:35PM -0500, Joel Fernandes wrote: >> 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]> > > For 3/4 and 4/4: > > Reviewed-by: Paul E. McKenney <[email protected]> > Tested-by: Paul E. McKenney <[email protected]>
Thanks, will apply these 2 to 7.1 with the tag. Joel > >> --- >> .../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 >>
