linux-kernel - [tip:sched/core] sched/deadline: Don't check SD_BALANCE

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Date:	Tue, 28 Oct 2014 04:07:38 -0700
From:	tip-bot for Wanpeng Li <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	peterz@...radead.org, mingo@...nel.org, hpa@...or.com,
	torvalds@...ux-foundation.org, tglx@...utronix.de,
	linux-kernel@...r.kernel.org, wanpeng.li@...ux.intel.com
Subject: [tip:sched/core] sched/deadline: Don't check SD_BALANCE_FORK

Commit-ID:  1d7e974cbf2fce2683f34ff33c173fd7ef5478c7
Gitweb:     http://git.kernel.org/tip/1d7e974cbf2fce2683f34ff33c173fd7ef5478c7
Author:     Wanpeng Li <wanpeng.li@...ux.intel.com>
AuthorDate: Tue, 14 Oct 2014 10:22:39 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 28 Oct 2014 10:48:01 +0100

sched/deadline: Don't check SD_BALANCE_FORK

There is no need to do balance during fork since SCHED_DEADLINE
tasks can't fork. This patch avoid the SD_BALANCE_FORK check.

Signed-off-by: Wanpeng Li <wanpeng.li@...ux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: http://lkml.kernel.org/r/1413253360-5318-1-git-send-email-wanpeng.li@linux.intel.com
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 kernel/sched/deadline.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 8aaa971..fab3bf8 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -933,7 +933,7 @@ select_task_rq_dl(struct task_struct *p, int cpu, int sd_flag, int flags)
 	struct task_struct *curr;
 	struct rq *rq;
 
-	if (sd_flag != SD_BALANCE_WAKE && sd_flag != SD_BALANCE_FORK)
+	if (sd_flag != SD_BALANCE_WAKE)
 		goto out;
 
 	rq = cpu_rq(cpu);
--
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