netdev - [PATCH] sch_red: report backlog information

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Message-ID: <1294078298.2892.1111.camel@edumazet-laptop>
Date:	Mon, 03 Jan 2011 19:11:38 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	hadi@...erus.ca
Cc:	Jarek Poplawski <jarkao2@...il.com>,
	David Miller <davem@...emloft.net>,
	Jesper Dangaard Brouer <hawk@...u.dk>,
	Patrick McHardy <kaber@...sh.net>,
	netdev <netdev@...r.kernel.org>
Subject: [PATCH] sch_red: report backlog information

Provide child qdisc backlog (byte count) information so that "tc -s
qdisc" can report it to user.

packet count is already correctly provided.

qdisc red 11: parent 1:11 limit 60Kb min 15Kb max 45Kb ecn 
 Sent 3116427684 bytes 1415782 pkt (dropped 8, overlimits 7866 requeues 0) 
 rate 242385Kbit 13630pps backlog 13560b 8p requeues 0 
  marked 7865 early 1 pdrop 7 other 0

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---
 net/sched/sch_red.c |    1 +
 1 files changed, 1 insertion(+)

diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 8d42bb3..a67ba3c 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -239,6 +239,7 @@ static int red_dump(struct Qdisc *sch, struct sk_buff *skb)
 		.Scell_log	= q->parms.Scell_log,
 	};
 
+	sch->qstats.backlog = q->qdisc->qstats.backlog;
 	opts = nla_nest_start(skb, TCA_OPTIONS);
 	if (opts == NULL)
 		goto nla_put_failure;


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