Currently, for different types of rcutorture tests, when dumping
gp_kthread because of slow gp, always invoke show_rcu_gp_kthreads().
this commit therefore changes show_rcu_gp_kthreads() to
cur_ops->gp_kthread_dbg() to dump the correct information in
rcu_torture_writer().

Signed-off-by: Zqiang <[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 51eebc523f08..9d269682256a 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -1617,7 +1617,8 @@ 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);
                                }
-- 
2.17.1


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