4 Commits

Author SHA1 Message Date
Paul E. McKenney
4c3f7b0e1e rcutorture: Allow rcutorture without RCU Tasks Rude
Unless a kernel builds rcutorture, whether built-in or as a module, that
kernel is also built with CONFIG_TASKS_RUDE_RCU, whether anything else
needs Tasks Rude RCU or not.  This unnecessarily increases kernel size.
This commit therefore decouples the presence of rcutorture from the
presence of RCU Tasks Rude.

However, there is a need to select CONFIG_TASKS_RUDE_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_RUDE_RCU that selects CONFIG_TASKS_RUDE_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>
2022-04-20 16:53:19 -07:00
Paul E. McKenney
8ea7a53daf rcutorture: Provide non-power-of-two Tasks RCU scenarios
This commit adjusts RUDE01 to 3 CPUs and TRACE01 to 5 CPUs in order to
test Tasks RCU's ability to handle non-power-of-two numbers of CPUs.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2022-02-08 11:19:15 -08:00
Paul E. McKenney
de2909461c rcutorture: Upgrade two-CPU scenarios to four CPUs
There is no way to place the vCPUs in a two-CPU rcutorture scenario to
get variable memory latency.  This commit therefore upgrades the current
two-CPU rcutorture scenarios to four CPUs.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-07-27 11:41:32 -07:00
Paul E. McKenney
3d6e43c75d rcutorture: Add torture tests for RCU Tasks Rude
This commit adds the definitions required to torture the rude flavor of
RCU tasks.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-04-27 11:03:51 -07:00