pkt_sched: Update drops stats in act_police

Action police statistics could be misleading because drops are not
shown when expected.

With feedback from: Jamal Hadi Salim <hadi@cyberus.ca>

Reported-by: Pawel Staszewski <pstaszewski@itcare.pl>
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index f8f047b61245..723964c3ee4f 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -294,6 +294,8 @@ static int tcf_act_police(struct sk_buff *skb, struct tc_action *a,
         if (police->tcfp_ewma_rate &&
             police->tcf_rate_est.bps >= police->tcfp_ewma_rate) {
                 police->tcf_qstats.overlimits++;
+                if (police->tcf_action == TC_ACT_SHOT)
+                        police->tcf_qstats.drops++;
                 spin_unlock(&police->tcf_lock);
                 return police->tcf_action;
         }
@@ -327,6 +329,8 @@ static int tcf_act_police(struct sk_buff *skb, struct tc_action *a,
         }
 
         police->tcf_qstats.overlimits++;
+        if (police->tcf_action == TC_ACT_SHOT)
+                police->tcf_qstats.drops++;
         spin_unlock(&police->tcf_lock);
         return police->tcf_action;
 }