[42/48] rcutorture: Use the gp_kthread_dbg operation specified by cur_ops

Commit Message

Uladzislau Rezki May 7, 2024, 9:35 a.m. UTC

From: Zqiang <[e-mail]>

Despite there being a cur_ops->gp_kthread_dbg(), rcu_torture_writer()
unconditionally invokes vanilla RCU's show_rcu_gp_kthreads().  This is not
at all helpful when some other flavor of RCU is being tested.  This commit
therefore makes rcu_torture_writer() invoke cur_ops->gp_kthread_dbg()
for RCU implementations providing this function.

Signed-off-by: Zqiang <[e-mail]>
Signed-off-by: Paul E. McKenney <[e-mail]>
Signed-off-by: Uladzislau Rezki (Sony) <[e-mail]>
---
 kernel/rcu/rcutorture.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

Patch

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index dd7d5ba45740..2f43d31fb7a5 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1589,7 +1589,8 @@  rcu_torture_writer(void *arg)
 				if (list_empty(&rcu_tortures[i].rtort_free) &&
 				    rcu_access_pointer(rcu_torture_current) != &rcu_tortures[i]) {
 					tracing_off();
-					show_rcu_gp_kthreads();
+					if (cur_ops->gp_kthread_dbg)
+						cur_ops->gp_kthread_dbg();
 					WARN(1, "%s: rtort_pipe_count: %d\n", __func__, rcu_tortures[i].rtort_pipe_count);
 					rcu_ftrace_dump(DUMP_ALL);
 				}