On Thu, Mar 16, 2023 at 3:38 AM Daniel Bristot de Oliveira
[off-list ref] wrote:

On 3/15/23 19:18, Joel Fernandes (Google) wrote:

quoted

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

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>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Joel Fernandes (Google) <redacted>
---
 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 04f0fdae19a1..f68ca1e6460f 100644
--- a/kernel/trace/trace_osnoise.c
+++ b/kernel/trace/trace_osnoise.c

@@ -159,7 +159,7 @@ static void osnoise_unregister_instance(struct trace_array *tr)
      if (!found)
              return;

-     kvfree_rcu(inst);
+     kvfree_rcu_mightsleep(inst);
 }

 /*

Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>

Thanks!

 - Joel