[PATCH 3.19.y-ckt 34/40] sch_dsmark: update backlog as well

[Kamal Mostafa]

3.19.8-ckt22 -stable review patch.  If anyone has any objections, please let me 
know.

---8<------------------------------------------------------------

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

[ Upstream commit bdf17661f63a79c3cb4209b970b1cc39e34f7543 ]

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

Cc: Jamal Hadi Salim <j...@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangc...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
 net/sched/sch_dsmark.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sched/sch_dsmark.c b/net/sched/sch_dsmark.c
index 11f9530..eb87a2a 100644
--- a/net/sched/sch_dsmark.c
+++ b/net/sched/sch_dsmark.c
@@ -256,6 +256,7 @@ static int dsmark_enqueue(struct sk_buff *skb, struct Qdisc 
*sch)
                return err;
        }
 
+       qdisc_qstats_backlog_inc(sch, skb);
        sch->q.qlen++;
 
        return NET_XMIT_SUCCESS;
@@ -278,6 +279,7 @@ static struct sk_buff *dsmark_dequeue(struct Qdisc *sch)
                return NULL;
 
        qdisc_bstats_update(sch, skb);
+       qdisc_qstats_backlog_dec(sch, skb);
        sch->q.qlen--;
 
        index = skb->tc_index & (p->indices - 1);
@@ -393,6 +395,7 @@ static void dsmark_reset(struct Qdisc *sch)
 
        pr_debug("%s(sch %p,[qdisc %p])\n", __func__, sch, p);
        qdisc_reset(p->q);
+       sch->qstats.backlog = 0;
        sch->q.qlen = 0;
 }
 
-- 
2.7.4