netdev - [PATCH] net: sched: fix missing free per cpu on qstats

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Date:	Tue, 05 Jan 2016 09:11:36 -0800
From:	John Fastabend <john.fastabend@...il.com>
To:	netdev@...r.kernel.org
Cc:	eric.dumazet@...il.com, davem@...emloft.net, daniel@...earbox.net
Subject: [PATCH] net: sched: fix missing free per cpu on qstats

When a qdisc is using per cpu stats (currently just the ingress
qdisc) only the bstats are being freed. This also free's the qstats.

Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
---
 net/sched/sch_generic.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index e82a1ad..16bc83b 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -658,8 +658,10 @@ static void qdisc_rcu_free(struct rcu_head *head)
 {
 	struct Qdisc *qdisc = container_of(head, struct Qdisc, rcu_head);
 
-	if (qdisc_is_percpu_stats(qdisc))
+	if (qdisc_is_percpu_stats(qdisc)) {
 		free_percpu(qdisc->cpu_bstats);
+		free_percpu(qdisc->cpu_qstats);
+	}
 
 	kfree((char *) qdisc - qdisc->padded);
 }

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