From: Kirill Tkhai <tkhai@yandex.ru>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Tkhai Kirill <tkhai@yandex.ru>
Subject: [PATCH]sched/rt.c: Add reschedule to switched_from_rt()
Date: Fri, 23 Nov 2012 00:02:15 +0400 [thread overview]
Message-ID: <118761353614535@web28f.yandex.ru> (raw)
Reschedule rq->curr if the first RT task has just been
pulled to the rq.
Signed-off-by: Kirill V Tkhai <tkhai@yandex.ru>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Ingo Molnar <mingo@kernel.org>
CC: Peter Zijlstra <peterz@infradead.org>
---
kernel/sched/rt.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 418feb0..29bda5b 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1889,8 +1889,11 @@ static void switched_from_rt(struct rq *rq, struct task_struct *p)
* we may need to handle the pulling of RT tasks
* now.
*/
- if (p->on_rq && !rq->rt.rt_nr_running)
- pull_rt_task(rq);
+ if (!p->on_rq || rq->rt.rt_nr_running)
+ return;
+
+ if (pull_rt_task(rq))
+ resched_task(rq->curr);
}
void init_sched_rt_class(void)
next reply other threads:[~2012-11-22 20:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-22 20:02 Kirill Tkhai [this message]
2012-11-28 3:45 ` [PATCH]sched/rt.c: Add reschedule to switched_from_rt() Steven Rostedt
2013-01-24 20:36 ` [tip:sched/core] sched/rt: Add reschedule check " tip-bot for Kirill Tkhai
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