diff options
| author | Paul E. McKenney <paulmck@kernel.org> | 2023-06-03 09:07:44 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-07-14 15:01:49 -0700 |
| commit | a15ec57cfcf83858aced058e00a7feb824322fa4 (patch) | |
| tree | 8692ce20e8810f403882d4190ffdeba618de6517 | |
| parent | 271a8467a5f7ab7654f06541d2483b5340bb7192 (diff) | |
rcuscale: Add RCU Tasks Rude testing
Add a "tasks-rude" option to the rcuscale.scale_type module parameter.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
| -rw-r--r-- | kernel/rcu/rcu.h | 3 | ||||
| -rw-r--r-- | kernel/rcu/rcuscale.c | 31 | ||||
| -rw-r--r-- | kernel/rcu/tasks.h | 7 | ||||
| -rw-r--r-- | tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon | 2 |
4 files changed, 42 insertions, 1 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index d58bc0e86769..9829d8161b21 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -508,6 +508,9 @@ void show_rcu_tasks_gp_kthreads(void); # ifdef CONFIG_TASKS_RCU struct task_struct *get_rcu_tasks_gp_kthread(void); # endif // # ifdef CONFIG_TASKS_RCU +# ifdef CONFIG_TASKS_RUDE_RCU +struct task_struct *get_rcu_tasks_rude_gp_kthread(void); +# endif // # ifdef CONFIG_TASKS_RUDE_RCU #else /* #ifdef CONFIG_TASKS_RCU_GENERIC */ static inline void show_rcu_tasks_gp_kthreads(void) {} #endif /* #else #ifdef CONFIG_TASKS_RCU_GENERIC */ diff --git a/kernel/rcu/rcuscale.c b/kernel/rcu/rcuscale.c index 35e06c86acc9..5ce3b4e7ce71 100644 --- a/kernel/rcu/rcuscale.c +++ b/kernel/rcu/rcuscale.c @@ -310,6 +310,35 @@ static struct rcu_scale_ops tasks_ops = { #endif // #else // #ifdef CONFIG_TASKS_RCU +#ifdef CONFIG_TASKS_RUDE_RCU + +/* + * Definitions for RCU-tasks-rude scalability testing. + */ + +static struct rcu_scale_ops tasks_rude_ops = { + .ptype = RCU_TASKS_RUDE_FLAVOR, + .init = rcu_sync_scale_init, + .readlock = tasks_scale_read_lock, + .readunlock = tasks_scale_read_unlock, + .get_gp_seq = rcu_no_completed, + .gp_diff = rcu_seq_diff, + .async = call_rcu_tasks_rude, + .gp_barrier = rcu_barrier_tasks_rude, + .sync = synchronize_rcu_tasks_rude, + .exp_sync = synchronize_rcu_tasks_rude, + .rso_gp_kthread = get_rcu_tasks_rude_gp_kthread, + .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 /* @@ -913,7 +942,7 @@ rcu_scale_init(void) long i; int firsterr = 0; static struct rcu_scale_ops *scale_ops[] = { - &rcu_ops, &srcu_ops, &srcud_ops, TASKS_OPS TASKS_TRACING_OPS + &rcu_ops, &srcu_ops, &srcud_ops, TASKS_OPS TASKS_RUDE_OPS TASKS_TRACING_OPS }; if (!torture_init_begin(scale_type, verbose)) diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 0f03de023097..0372c5cbc83b 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1194,6 +1194,13 @@ void show_rcu_tasks_rude_gp_kthread(void) } EXPORT_SYMBOL_GPL(show_rcu_tasks_rude_gp_kthread); #endif // !defined(CONFIG_TINY_RCU) + +struct task_struct *get_rcu_tasks_rude_gp_kthread(void) +{ + return rcu_tasks_rude.kthread_ptr; +} +EXPORT_SYMBOL_GPL(get_rcu_tasks_rude_gp_kthread); + #endif /* #ifdef CONFIG_TASKS_RUDE_RCU */ //////////////////////////////////////////////////////////////////////// diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon index 6a00157bee5b..b1ffd7c67604 100644 --- a/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon +++ b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon @@ -2,5 +2,7 @@ CONFIG_RCU_SCALE_TEST=y CONFIG_PRINTK_TIME=y CONFIG_FORCE_TASKS_RCU=y #CHECK#CONFIG_TASKS_RCU=y +CONFIG_FORCE_TASKS_RUDE_RCU=y +#CHECK#CONFIG_TASKS_RUDE_RCU=y CONFIG_FORCE_TASKS_TRACE_RCU=y #CHECK#CONFIG_TASKS_TRACE_RCU=y |