diff options
| -rw-r--r-- | kernel/rcu/Kconfig | 21 | ||||
| -rw-r--r-- | kernel/rcu/Kconfig.debug | 1 | ||||
| -rw-r--r-- | kernel/rcu/rcutorture.c | 13 | ||||
| -rw-r--r-- | tools/testing/selftests/rcutorture/configs/rcu/RUDE01 | 2 |
4 files changed, 28 insertions, 9 deletions
diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig index 8eac165db09f..65d45c00fd1b 100644 --- a/kernel/rcu/Kconfig +++ b/kernel/rcu/Kconfig @@ -93,15 +93,22 @@ config TASKS_RCU default n select IRQ_WORK +config FORCE_TASKS_RUDE_RCU + bool "Force selection of Tasks Rude RCU" + depends on RCU_EXPERT + select TASKS_RUDE_RCU + default n + help + This option force-enables a task-based RCU implementation + that uses only context switch (including preemption) and + user-mode execution as quiescent states. It forces IPIs and + context switches on all online CPUs, including idle ones, + so use with caution. Not for manual selection in most cases. + config TASKS_RUDE_RCU - def_bool 0 + bool + default n select IRQ_WORK - help - This option enables a task-based RCU implementation that uses - only context switch (including preemption) and user-mode - execution as quiescent states. It forces IPIs and context - switches on all online CPUs, including idle ones, so use - with caution. config FORCE_TASKS_TRACE_RCU bool "Force selection of Tasks Trace RCU" diff --git a/kernel/rcu/Kconfig.debug b/kernel/rcu/Kconfig.debug index c217a5e655a4..f4a4468cbf03 100644 --- a/kernel/rcu/Kconfig.debug +++ b/kernel/rcu/Kconfig.debug @@ -47,7 +47,6 @@ config RCU_TORTURE_TEST depends on DEBUG_KERNEL select TORTURE_TEST select SRCU - select TASKS_RUDE_RCU default n help This option provides a kernel module that runs torture tests diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 65d045ff9766..d528245108c2 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -833,6 +833,8 @@ static struct rcu_torture_ops tasks_ops = { #endif // #else #ifdef CONFIG_TASKS_RCU +#ifdef CONFIG_TASKS_RUDE_RCU + /* * Definitions for rude RCU-tasks torture testing. */ @@ -862,6 +864,15 @@ static struct rcu_torture_ops tasks_rude_ops = { .name = "tasks-rude" }; +#define TASKS_RUDE_OPS &tasks_rude_ops, + +#else // #ifdef CONFIG_TASKS_RUDE_RCU + +#define TASKS_RUDE_OPS + +#endif // #else #ifdef CONFIG_TASKS_RUDE_RCU + + #ifdef CONFIG_TASKS_TRACE_RCU /* @@ -3119,7 +3130,7 @@ rcu_torture_init(void) unsigned long gp_seq = 0; static struct rcu_torture_ops *torture_ops[] = { &rcu_ops, &rcu_busted_ops, &srcu_ops, &srcud_ops, &busted_srcud_ops, - TASKS_OPS &tasks_rude_ops, TASKS_TRACING_OPS + TASKS_OPS TASKS_RUDE_OPS TASKS_TRACING_OPS &trivial_ops, }; diff --git a/tools/testing/selftests/rcutorture/configs/rcu/RUDE01 b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01 index 7093422050f6..6fd6acb94518 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/RUDE01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01 @@ -8,3 +8,5 @@ CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y #CHECK#CONFIG_PROVE_RCU=y CONFIG_RCU_EXPERT=y +CONFIG_FORCE_TASKS_RUDE_RCU=y +#CHECK#CONFIG_TASKS_RUDE_RCU=y |