[PATCH 4.4 25/73] sch_dsmark: update backlog as well

Greg Kroah-Hartman
2016-05-17T01:54:56Z

From: WANG Cong <xiyou.wangcong@gmail.com>

[ Upstream commit bdf17661f63a79c3cb4209b970b1cc39e34f7543 ]

Similarly, we need to update backlog too when we update qlen.

Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/sched/sch_dsmark.c | 3 +++
1 file changed, 3 insertions(+)

--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -258,6 +258,7 @@ static int dsmark_enqueue(struct sk_buff
return err;
}

+ qdisc_qstats_backlog_inc(sch, skb);
sch->q.qlen++;

return NET_XMIT_SUCCESS;
@@ -280,6 +281,7 @@ static struct sk_buff *dsmark_dequeue(st
return NULL;

qdisc_bstats_update(sch, skb);
+ qdisc_qstats_backlog_dec(sch, skb);
sch->q.qlen--;

index = skb->tc_index & (p->indices - 1);
@@ -395,6 +397,7 @@ static void dsmark_reset(struct Qdisc *s

pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p);
qdisc_reset(p->q);
+ sch->qstats.backlog = 0;
sch->q.qlen = 0;
}