linux-kernel - [PATCH] rcutorture: Use the gp_kthread_dbg operation specified by cur

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Date: Fri, 15 Mar 2024 15:17:10 +0800
From: Zqiang <qiang.zhang1211@...il.com>
To: paulmck@...nel.org,
	frederic@...nel.org,
	neeraj.upadhyay@...nel.org,
	joel@...lfernandes.org
Cc: qiang.zhang1211@...il.com,
	linux-kernel@...r.kernel.org,
	rcu@...r.kernel.org
Subject: [PATCH] rcutorture: Use the gp_kthread_dbg operation specified by cur_ops

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 <qiang.zhang1211@...il.com>
---
 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