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| author | Paul E. McKenney <paulmck@kernel.org> | 2026-07-08 17:34:07 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2026-08-14 14:59:20 -0700 |
| commit | 86fa5387b473c160c26b781dff55014c4e1b3db0 (patch) | |
| tree | 24c51c64d1789d6179ac13183cce4ce6883b603c | |
| parent | 560b35bd7c8aa1b7cd20adf28c401e93da567400 (diff) | |
| download | linux-86fa5387b473c160c26b781dff55014c4e1b3db0.tar.gz linux-86fa5387b473c160c26b781dff55014c4e1b3db0.zip | |
rcutorture: Make RCU Tasks Trace track Reader Batches
This commit adds the ->get_sp_seq and ->gp_diff fields to the
tasks_tracing_ops structure so that RCU Tasks Trace rcutorture runs will
track Reader Batch.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
| -rw-r--r-- | include/linux/rcupdate_trace.h | 3 | ||||
| -rw-r--r-- | kernel/rcu/rcutorture.c | 3 | ||||
| -rw-r--r-- | kernel/rcu/tasks.h | 6 |
3 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/rcupdate_trace.h b/include/linux/rcupdate_trace.h index cee89e51e45c..f2c4173bf14f 100644 --- a/include/linux/rcupdate_trace.h +++ b/include/linux/rcupdate_trace.h @@ -198,10 +198,13 @@ static inline void rcu_tasks_trace_expedite_current(void) srcu_expedite_current(&rcu_tasks_trace_srcu_struct); } +unsigned long rcu_tasks_trace_batches_completed(void); + // Placeholders to enable stepwise transition. void __init rcu_tasks_trace_suppress_unused(void); #else +static inline unsigned long rcu_tasks_trace_batches_completed(void) { return 0; } /* * The BPF JIT forms these addresses even when it doesn't call these * functions, so provide definitions that result in runtime errors. diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index c8118c38812a..8514fef3ec10 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1252,7 +1252,8 @@ static struct rcu_torture_ops tasks_tracing_ops = { .read_delay = srcu_read_delay, /* just reuse srcu's version. */ .readunlock = tasks_tracing_torture_read_unlock, .readlock_held = rcu_read_lock_trace_held, - .get_gp_seq = rcu_no_completed, + .get_gp_seq = rcu_tasks_trace_batches_completed, + .gp_diff = rcu_seq_diff, .deferred_free = rcu_tasks_tracing_torture_deferred_free, .sync = synchronize_rcu_tasks_trace, .exp_sync = synchronize_rcu_tasks_trace, diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index f4da5fad70f5..496acac8796f 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1606,4 +1606,10 @@ static inline void rcu_tasks_bootup_oddness(void) {} DEFINE_SRCU_FAST(rcu_tasks_trace_srcu_struct); EXPORT_SYMBOL_GPL(rcu_tasks_trace_srcu_struct); +unsigned long rcu_tasks_trace_batches_completed(void) +{ + return srcu_batches_completed(&rcu_tasks_trace_srcu_struct); +} +EXPORT_SYMBOL_GPL(rcu_tasks_trace_batches_completed); + #endif /* #else #ifdef CONFIG_TASKS_TRACE_RCU */ |