sched: sfq: drop packets after root qdisc lock is released
The commit 520ac30f ("net_sched: drop packets after root qdisc lock is released) made a big change of tc for performance. But there are some points which are not changed in SFQ enqueue operation. 1. Fail to find the SFQ hash slot; 2. When the queue is full; Now use qdisc_drop instead free skb directly. Signed-off-by: Gao Feng <gfree.wind@vip.163.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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