net_sched: sch_fq: perform a prefetch() earlier
The prefetch() done in fq_dequeue() can be done a bit earlier
after the refactoring of the code done in the prior patch.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 567df8f..4f01042 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -546,6 +546,7 @@ static struct sk_buff *fq_dequeue(struct Qdisc *sch)
fq_flow_set_throttled(q, f);
goto begin;
}
+ prefetch(&skb->end);
if ((s64)(now - time_next_packet - q->ce_threshold) > 0) {
INET_ECN_set_ce(skb);
q->stat_ce_mark++;
@@ -562,7 +563,6 @@ static struct sk_buff *fq_dequeue(struct Qdisc *sch)
}
goto begin;
}
- prefetch(&skb->end);
plen = qdisc_pkt_len(skb);
f->credit -= plen;
