From: Akinbou Mita <akinobu.mita@gmail.com>
Date: Thu, 12 Oct 2006 08:52:05 +0000 (-0700)
Subject: [PKT_SCHED] sch_htb: use rb_first() cleanup
X-Git-Tag: v2.6.19-rc2~17^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=30bdbe397bf58131a91fd836f60972442bed0544;p=platform%2Fupstream%2Fkernel-adaptation-pc.git

[PKT_SCHED] sch_htb: use rb_first() cleanup

Use rb_first() to get first entry in rb tree.

Signed-off-by: Akinbou Mita <akinobu.mita@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index bb3ddd4..9b9c555 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -786,11 +786,10 @@ static long htb_do_events(struct htb_sched *q, int level)
 	for (i = 0; i < 500; i++) {
 		struct htb_class *cl;
 		long diff;
-		struct rb_node *p = q->wait_pq[level].rb_node;
+		struct rb_node *p = rb_first(&q->wait_pq[level]);
+
 		if (!p)
 			return 0;
-		while (p->rb_left)
-			p = p->rb_left;
 
 		cl = rb_entry(p, struct htb_class, pq_node);
 		if (time_after(cl->pq_key, q->jiffies)) {