[NET_SCHED] sch_prio: class statistics printing enabled
This patch adds a dump_stats callback to enable
printing of basic statistics of prio classes.
(With help of Patrick McHardy).
Signed-off-by: Jarek Poplawski <jarkao2@o2.pl>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 2567b4c..000e043 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -372,6 +372,20 @@
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;
+
+ 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 +428,7 @@
.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 = {
