From: Zqiang <qiang.zhang1211@gmail.com>
Date: Fri, 15 Mar 2024 07:17:10 +0000 (+0800)
Subject: rcutorture: Use the gp_kthread_dbg operation specified by cur_ops
X-Git-Tag: v6.10-rc1~234^2^5~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e38bf06d509a90c9fc185129ec913beb6de3d428;p=thirdparty%2Fkernel%2Flinux.git

rcutorture: Use the gp_kthread_dbg operation specified by cur_ops

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 <qiang.zhang1211@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
---

diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index dd7d5ba457409..2f43d31fb7a54 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);
 				}