From: Eric Dumazet <edumazet@google.com>
Date: Tue, 14 Jun 2016 03:21:57 +0000 (-0700)
Subject: net_sched: sch_netem: defer skb freeing
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2f08a9a16288b60df3ddfe97c965427ce0163297;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

net_sched: sch_netem: defer skb freeing

rtnl_kfree_skbs() can be used in tfifo_reset()

It would be nice if we could iterate through rb tree instead
of removing one skb at a time, and build a single skb chain.
But this is left for a future patch.

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

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 876df13c745a..e271967439bf 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -368,9 +368,7 @@ static void tfifo_reset(struct Qdisc *sch)
 		struct sk_buff *skb = netem_rb_to_skb(p);
 
 		rb_erase(p, &q->t_root);
-		skb->next = NULL;
-		skb->prev = NULL;
-		kfree_skb(skb);
+		rtnl_kfree_skbs(skb, skb);
 	}
 }