From 844541e604d0d92ec4baf30f5c1892f9a5e8fb80 Mon Sep 17 00:00:00 2001
From: Dmitry Adamushko <dmitry.adamushko@gmail.com>
Date: Fri, 24 Aug 2007 20:39:10 +0200
Subject: [PATCH] --- yaml --- r: 64370 b: refs/heads/master c:
 98fbc798533339be802c6dcd48c2293c712e87db h: refs/heads/master v: v3

---
 [refs]                  |  2 +-
 trunk/kernel/sched_rt.c | 11 ++++++++---
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/[refs] b/[refs]
index d066ebca927c..e1b0f2f53350 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: deac4ee65af4befb66b542e4a782e63da93b51a0
+refs/heads/master: 98fbc798533339be802c6dcd48c2293c712e87db
diff --git a/trunk/kernel/sched_rt.c b/trunk/kernel/sched_rt.c
index dcdcad632fd9..4b87476a02d0 100644
--- a/trunk/kernel/sched_rt.c
+++ b/trunk/kernel/sched_rt.c
@@ -207,10 +207,15 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p)
 		return;
 
 	p->time_slice = static_prio_timeslice(p->static_prio);
-	set_tsk_need_resched(p);
 
-	/* put it at the end of the queue: */
-	requeue_task_rt(rq, p);
+	/*
+	 * Requeue to the end of queue if we are not the only element
+	 * on the queue:
+	 */
+	if (p->run_list.prev != p->run_list.next) {
+		requeue_task_rt(rq, p);
+		set_tsk_need_resched(p);
+	}
 }
 
 static struct sched_class rt_sched_class __read_mostly = {