From: Amnon Aaronsohn <bla@cs.huji.ac.il>
Date: Tue, 17 Jan 2006 10:24:26 +0000 (-0800)
Subject: [PKT_SCHED] sch_prio: fix qdisc bands init
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=dd914b4082cfbe28849898a0a98757827829c813;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

[PKT_SCHED] sch_prio: fix qdisc bands init

Currently when PRIO is configured to use N bands, it lets the packets be
directed to any of the bands 0..N-1. However, PRIO attaches a fifo qdisc
only to the bands that appear in the priomap; the rest of the N bands
remain with a noop qdisc attached. This patch changes PRIO's behavior so
that it attaches a fifo qdisc to all of the N bands.

Signed-off-by: Amnon Aaronsohn <bla@cs.huji.ac.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 5b3a3e48ed9..1641db33a99 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -228,14 +228,13 @@ static int prio_tune(struct Qdisc *sch, struct rtattr *opt)
 	}
 	sch_tree_unlock(sch);
 
-	for (i=0; i<=TC_PRIO_MAX; i++) {
-		int band = q->prio2band[i];
-		if (q->queues[band] == &noop_qdisc) {
+	for (i=0; i<q->bands; i++) {
+		if (q->queues[i] == &noop_qdisc) {
 			struct Qdisc *child;
 			child = qdisc_create_dflt(sch->dev, &pfifo_qdisc_ops);
 			if (child) {
 				sch_tree_lock(sch);
-				child = xchg(&q->queues[band], child);
+				child = xchg(&q->queues[i], child);
 
 				if (child != &noop_qdisc)
 					qdisc_destroy(child);