linux-kernel - [PATCH v3 4/4] sched/deadline: Remove redundant conditions from task_woken

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Message-Id: <1431442004-18716-4-git-send-email-xlpang@126.com>
Date:	Tue, 12 May 2015 22:46:44 +0800
From:	Xunlei Pang <xlpang@....com>
To:	linux-kernel@...r.kernel.org
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Juri Lelli <juri.lelli@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Xunlei Pang <pang.xunlei@...aro.org>
Subject: [PATCH v3 4/4] sched/deadline: Remove redundant conditions from task_woken_dl()

From: Xunlei Pang <pang.xunlei@...aro.org>

Sync up the same behaviour as that of RT:
Remove "has_pushable_dl_tasks(rq)" and "!test_tsk_need_resched(rq->curr)".

Signed-off-by: Xunlei Pang <pang.xunlei@...aro.org>
---
 kernel/sched/deadline.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 968612b..38c08c4 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1564,8 +1564,6 @@ static void post_schedule_dl(struct rq *rq)
 static void task_woken_dl(struct rq *rq, struct task_struct *p)
 {
 	if (!task_running(rq, p) &&
-	    !test_tsk_need_resched(rq->curr) &&
-	    has_pushable_dl_tasks(rq) &&
 	    p->nr_cpus_allowed > 1 &&
 	    dl_task(rq->curr) &&
 	    (rq->curr->nr_cpus_allowed < 2 ||
-- 
1.9.1


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