From: Zqiang <[email protected]>

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

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);
                                }
-- 
2.39.2


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