[PATCH 6.1.y 1/2] tracing: Rename kvfree_rcu() to kvfree_rcu_mightsleep()

[Sasha Levin <sashal@kernel.org>]

From: "Uladzislau Rezki (Sony)" <urezki@gmail.com>

[ Upstream commit cae16f2c2e11c60c888715f4d98c12740683d6a2 ]

The kvfree_rcu() macro's single-argument form is deprecated.  Therefore
switch to the new kvfree_rcu_mightsleep() variant. The goal is to
avoid accidental use of the single-argument forms, which can introduce
functionality bugs in atomic contexts and latency bugs in non-atomic
contexts.

Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Stable-dep-of: fe58f457ad8d ("tracing/osnoise: Call synchronize_rcu() when unregistering")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_osnoise.c | 2 +-
 kernel/trace/trace_probe.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c
index 676d9a3e65cde6..417b62f7550978 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c
@@ -137,7 +137,7 @@ static void osnoise_unregister_instance(struct trace_array *tr)
 	if (!found)
 		return;
 
-	kvfree_rcu(inst);
+	kvfree_rcu_mightsleep(inst);
 }
 
 /*
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 125111d310d1ba..241b7ba9a3a777 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -1179,7 +1179,7 @@ int trace_probe_remove_file(struct trace_probe *tp,
 		return -ENOENT;
 
 	list_del_rcu(&link->list);
-	kvfree_rcu(link);
+	kvfree_rcu_mightsleep(link);
 
 	if (list_empty(&tp->event->files))
 		trace_probe_clear_flag(tp, TP_FLAG_TRACE);
-- 
2.53.0