refperf: Add test for RCU Tasks Trace readers.
This commit adds testing for RCU Tasks Trace readers to the refperf module.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
diff --git a/kernel/rcu/refperf.c b/kernel/rcu/refperf.c
index 5db165e..1791b17 100644
--- a/kernel/rcu/refperf.c
+++ b/kernel/rcu/refperf.c
@@ -25,6 +25,7 @@
#include <linux/notifier.h>
#include <linux/percpu.h>
#include <linux/rcupdate.h>
+#include <linux/rcupdate_trace.h>
#include <linux/reboot.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
@@ -157,7 +158,6 @@
.name = "rcu"
};
-
// Definitions for SRCU ref perf testing.
DEFINE_STATIC_SRCU(srcu_refctl_perf);
static struct srcu_struct *srcu_ctlp = &srcu_refctl_perf;
@@ -192,6 +192,35 @@
.name = "srcu"
};
+// Definitions for RCU Tasks Trace ref perf testing.
+static void rcu_trace_ref_perf_read_section(const int nloops)
+{
+ int i;
+
+ for (i = nloops; i >= 0; i--) {
+ rcu_read_lock_trace();
+ rcu_read_unlock_trace();
+ }
+}
+
+static void rcu_trace_ref_perf_delay_section(const int nloops, const int udl, const int ndl)
+{
+ int i;
+
+ for (i = nloops; i >= 0; i--) {
+ rcu_read_lock_trace();
+ un_delay(udl, ndl);
+ rcu_read_unlock_trace();
+ }
+}
+
+static struct ref_perf_ops rcu_trace_ops = {
+ .init = rcu_sync_perf_init,
+ .readsection = rcu_trace_ref_perf_read_section,
+ .delaysection = rcu_trace_ref_perf_delay_section,
+ .name = "rcu-trace"
+};
+
// Definitions for reference count
static atomic_t refcnt;
@@ -584,7 +613,7 @@
long i;
int firsterr = 0;
static struct ref_perf_ops *perf_ops[] = {
- &rcu_ops, &srcu_ops, &refcnt_ops, &rwlock_ops, &rwsem_ops,
+ &rcu_ops, &srcu_ops, &rcu_trace_ops, &refcnt_ops, &rwlock_ops, &rwsem_ops,
};
if (!torture_init_begin(perf_type, verbose))
