From: tip-bot for Kirill Tkhai <tkhai@yandex.ru>
To: linux-tip-commits@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@kernel.org,
rostedt@goodmis.org, peterz@infradead.org, tkhai@yandex.ru,
tglx@linutronix.de
Subject: [tip:sched/core] sched/rt: Add reschedule check to switched_from_rt()
Date: Thu, 24 Jan 2013 12:36:40 -0800 [thread overview]
Message-ID: <tip-1158ddb55416855fd17abe3214298f736f00426a@git.kernel.org> (raw)
In-Reply-To: <118761353614535@web28f.yandex.ru>
Commit-ID: 1158ddb55416855fd17abe3214298f736f00426a
Gitweb: http://git.kernel.org/tip/1158ddb55416855fd17abe3214298f736f00426a
Author: Kirill Tkhai <tkhai@yandex.ru>
AuthorDate: Fri, 23 Nov 2012 00:02:15 +0400
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Thu, 24 Jan 2013 17:14:30 +0100
sched/rt: Add reschedule check to switched_from_rt()
Reschedule rq->curr if the first RT task has just been
pulled to the rq.
Signed-off-by: Kirill V Tkhai <tkhai@yandex.ru>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tkhai Kirill <tkhai@yandex.ru>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/118761353614535@web28f.yandex.ru
Signed-off-by: Ingo Molnar <mingo@kernel.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)
prev parent reply other threads:[~2013-01-24 20:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-22 20:02 [PATCH]sched/rt.c: Add reschedule to switched_from_rt() Kirill Tkhai
2012-11-28 3:45 ` Steven Rostedt
2013-01-24 20:36 ` tip-bot for Kirill Tkhai [this message]
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