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Date:	Wed, 31 Jan 2007 08:53:49 +0100
From:	Jarek Poplawski <jarkao2@...pl>
To:	netdev@...r.kernel.org
Subject: [PATCH][NET_SCHED] sch_prio: class statistics printing enabled

Hello,

This patch adds a dump_stats callback to enable
printing of basic statistics of prio classes.

Signed-off-by: Jarek Poplawski <jarkao2@...pl>

---

diff -Nurp linux-2.6.20-rc6-/net/sched/sch_prio.c linux-2.6.20-rc6/net/sched/sch_prio.c
--- linux-2.6.20-rc6-/net/sched/sch_prio.c	2007-01-08 20:23:58.000000000 +0100
+++ linux-2.6.20-rc6/net/sched/sch_prio.c	2007-01-30 20:26:31.000000000 +0100
@@ -372,6 +372,23 @@ static int prio_dump_class(struct Qdisc 
 	return 0;
 }
 
+static int prio_dump_class_stats(struct Qdisc *sch, unsigned long cl,
+							struct gnet_dump *d)
+{
+	struct prio_sched_data *q = qdisc_priv(sch);
+	struct Qdisc *cl_q;
+
+	if (cl - 1 > q->bands)
+		return -ENOENT;
+
+	cl_q = q->queues[cl - 1];
+	if (gnet_stats_copy_basic(d, &cl_q->bstats) < 0 ||
+	    gnet_stats_copy_queue(d, &cl_q->qstats) < 0)
+		return -1;
+
+	return 0;
+}
+
 static void prio_walk(struct Qdisc *sch, struct qdisc_walker *arg)
 {
 	struct prio_sched_data *q = qdisc_priv(sch);
@@ -414,6 +431,7 @@ static struct Qdisc_class_ops prio_class
 	.bind_tcf	=	prio_bind,
 	.unbind_tcf	=	prio_put,
 	.dump		=	prio_dump_class,
+	.dump_stats	=	prio_dump_class_stats,
 };
 
 static struct Qdisc_ops prio_qdisc_ops = {
-
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