diff options
| -rw-r--r-- | include/linux/torture.h | 3 | ||||
| -rw-r--r-- | kernel/locking/locktorture.c | 3 | ||||
| -rw-r--r-- | kernel/rcu/rcutorture.c | 3 | ||||
| -rw-r--r-- | kernel/torture.c | 16 |
4 files changed, 19 insertions, 6 deletions
diff --git a/include/linux/torture.h b/include/linux/torture.h index fec46f8c08eb..7759fc3c622d 100644 --- a/include/linux/torture.h +++ b/include/linux/torture.h @@ -77,7 +77,8 @@ int torture_stutter_init(int s); /* Initialization and cleanup. */ bool torture_init_begin(char *ttype, bool v, int *runnable); void torture_init_end(void); -bool torture_cleanup(void); +bool torture_cleanup_begin(void); +void torture_cleanup_end(void); bool torture_must_stop(void); bool torture_must_stop_irq(void); void torture_kthread_stopping(char *title); diff --git a/kernel/locking/locktorture.c b/kernel/locking/locktorture.c index de703a769c1d..988267cc92c1 100644 --- a/kernel/locking/locktorture.c +++ b/kernel/locking/locktorture.c @@ -361,7 +361,7 @@ static void lock_torture_cleanup(void) { int i; - if (torture_cleanup()) + if (torture_cleanup_begin()) return; if (writer_tasks) { @@ -384,6 +384,7 @@ static void lock_torture_cleanup(void) else lock_torture_print_module_parms(cur_ops, "End of test: SUCCESS"); + torture_cleanup_end(); } static int __init lock_torture_init(void) diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 6d1509500d2b..04c4b5afb759 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1514,7 +1514,7 @@ rcu_torture_cleanup(void) int i; rcutorture_record_test_transition(); - if (torture_cleanup()) { + if (torture_cleanup_begin()) { if (cur_ops->cb_barrier != NULL) cur_ops->cb_barrier(); return; @@ -1566,6 +1566,7 @@ rcu_torture_cleanup(void) "End of test: RCU_HOTPLUG"); else rcu_torture_print_module_parms(cur_ops, "End of test: SUCCESS"); + torture_cleanup_end(); } #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD diff --git a/kernel/torture.c b/kernel/torture.c index ede8b25ec1ae..dd70993c266c 100644 --- a/kernel/torture.c +++ b/kernel/torture.c @@ -633,8 +633,13 @@ EXPORT_SYMBOL_GPL(torture_init_end); * * This must be called before the caller starts shutting down its own * kthreads. + * + * Both torture_cleanup_begin() and torture_cleanup_end() must be paired, + * in order to correctly perform the cleanup. They are separated because + * threads can still need to reference the torture_type type, thus nullify + * only after completing all other relevant calls. */ -bool torture_cleanup(void) +bool torture_cleanup_begin(void) { mutex_lock(&fullstop_mutex); if (ACCESS_ONCE(fullstop) == FULLSTOP_SHUTDOWN) { @@ -649,12 +654,17 @@ bool torture_cleanup(void) torture_shuffle_cleanup(); torture_stutter_cleanup(); torture_onoff_cleanup(); + return false; +} +EXPORT_SYMBOL_GPL(torture_cleanup_begin); + +void torture_cleanup_end(void) +{ mutex_lock(&fullstop_mutex); torture_type = NULL; mutex_unlock(&fullstop_mutex); - return false; } -EXPORT_SYMBOL_GPL(torture_cleanup); +EXPORT_SYMBOL_GPL(torture_cleanup_end); /* * Is it time for the current torture test to stop? |
