From 67e2be02328b9a61a9c799fbdd4ec94d7da0c323 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
Date: Thu, 20 Dec 2007 15:01:17 +0100
Subject: [PATCH] sched: rt: account the cpu time during the tick

Realtime tasks would not account their runtime during ticks. Which would lead
to:

        struct sched_param param = { .sched_priority = 10 };
        pthread_setschedparam(pthread_self(), SCHED_FIFO, &param);

	while (1) ;

Not showing up in top.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/sched_rt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index ee9c8b6529e9..9ba3daa03475 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -208,6 +208,8 @@ move_one_task_rt(struct rq *this_rq, int this_cpu, struct rq *busiest,
 
 static void task_tick_rt(struct rq *rq, struct task_struct *p)
 {
+	update_curr_rt(rq);
+
 	/*
 	 * RR tasks need a special form of timeslice management.
 	 * FIFO tasks have no timeslices.