Similar to commit c78e1746d3ad
("net: sched: fix call_rcu() race on classifier module unloads"),
we need to wait for flying RCU callback tcf_sample_cleanup_rcu().Cc: Yotam Gigi <[email protected]> Cc: Daniel Borkmann <[email protected]> Cc: Jiri Pirko <[email protected]> Cc: Jamal Hadi Salim <[email protected]> Cc: "Paul E. McKenney" <[email protected]> Signed-off-by: Cong Wang <[email protected]> --- net/sched/act_sample.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c index ec986ae52808..a9f9a2ccc664 100644 --- a/net/sched/act_sample.c +++ b/net/sched/act_sample.c @@ -264,6 +264,7 @@ static int __init sample_init_module(void) static void __exit sample_cleanup_module(void) { + rcu_barrier(); tcf_unregister_action(&act_sample_ops, &sample_net_ops); } -- 2.13.0
