In a networking test on ChromeOS, we find that using the new CONFIG_RCU_LAZY causes a networking test to fail in the teardown phase. The failure happens during: ip netns del <name> Using ftrace, I found the callbacks it was queuing which this series fixes. Use call_rcu_flush() to revert to the old behavior. With that, the test passes. Signed-off-by: Joel Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx> --- net/sched/sch_generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c index a9aadc4e6858..63fbf640d3b2 100644 --- a/net/sched/sch_generic.c +++ b/net/sched/sch_generic.c @@ -1067,7 +1067,7 @@ static void qdisc_destroy(struct Qdisc *qdisc) trace_qdisc_destroy(qdisc); - call_rcu(&qdisc->rcu, qdisc_free_cb); + call_rcu_flush(&qdisc->rcu, qdisc_free_cb); } void qdisc_put(struct Qdisc *qdisc) -- 2.38.1.584.g0f3c55d4c2-goog
