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authorDaniel Axtens <dja@axtens.net>2018-03-01 09:13:38 +0300
committerDavid S. Miller <davem@davemloft.net>2018-03-05 01:49:17 +0300
commitee78bbef8d63202ca0f2485aecf30b8c2b0088cc (patch)
treefb4656122536f2df9964865d441751c31a0005da /net/sched
parent779b7931b27bfa80bac46d0115d229259aef580b (diff)
downloadlinux-ee78bbef8d63202ca0f2485aecf30b8c2b0088cc.tar.xz
net: sched: tbf: handle GSO_BY_FRAGS case in enqueue
tbf_enqueue() checks the size of a packet before enqueuing it. However, the GSO size check does not consider the GSO_BY_FRAGS case, and so will drop GSO SCTP packets, causing a massive drop in throughput. Use skb_gso_validate_mac_len() instead, as it does consider that case. Signed-off-by: Daniel Axtens <dja@axtens.net> Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_tbf.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 229172d509cc..03225a8df973 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -188,7 +188,8 @@ static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch,
int ret;
if (qdisc_pkt_len(skb) > q->max_size) {
- if (skb_is_gso(skb) && skb_gso_mac_seglen(skb) <= q->max_size)
+ if (skb_is_gso(skb) &&
+ skb_gso_validate_mac_len(skb, q->max_size))
return tbf_segment(skb, sch, to_free);
return qdisc_drop(skb, sch, to_free);
}