commit b3d7e2b29b226c986cbd4efcaf43ab3ff90e6fdb
author Eric Dumazet <edumazet@google.com> Mon Jun 13 20:21:52 2016 -0700
committer David S. Miller <davem@davemloft.net> Wed Jun 15 14:08:35 2016 -0700
tree 9d1ccc8433d0e937b9ab0270241d02dfdf9ed934
parent f9aed311b682ca933ca78821cce3e4f1d69d4f56

net_sched: sch_codel: defer skb freeing in codel_change()

codel_change() can use rtnl_qdisc_drop()
to defer expensive skb freeing after locks are released.

codel_reset() already has support for deferred skb freeing
because it uses qdisc_reset_queue()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_codel.c

diff --git a/net/sched/sch_codel.c b/net/sched/sch_codel.c
index dddf3bb..c5bc424 100644
--- a/net/sched/sch_codel.c
+++ b/net/sched/sch_codel.c
@@ -174,7 +174,7 @@
 
 		dropped += qdisc_pkt_len(skb);
 		qdisc_qstats_backlog_dec(sch, skb);
-		qdisc_drop(skb, sch);
+		rtnl_qdisc_drop(skb, sch);
 	}
 	qdisc_tree_reduce_backlog(sch, qlen - sch->q.qlen, dropped);