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From:   Xianting Tian <tian.xianting@h3c.com>
To:     <mingo@redhat.com>, <peterz@infradead.org>,
        <juri.lelli@redhat.com>, <vincent.guittot@linaro.org>,
        <dietmar.eggemann@arm.com>, <rostedt@goodmis.org>,
        <bsegall@google.com>, <mgorman@suse.de>
CC:     <linux-kernel@vger.kernel.org>,
        Xianting Tian <tian.xianting@h3c.com>
Subject: [PATCH] sched: Remove useless settings when 'tg == d->tg'
Date:   Fri, 14 Aug 2020 19:12:52 +0800
Message-ID: <20200814111252.36379-1-tian.xianting@h3c.com>
MIME-Version: 1.0
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Sender: linux-kernel-owner@vger.kernel.org
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if 'tg == d->tg' is true, the previous settings for period,runtime
are unnecessary. So move the settings to the 'else' branch.

Signed-off-by: Xianting Tian <tian.xianting@h3c.com>
---
 kernel/sched/rt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index f395ddb75..8b5505735 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -2504,12 +2504,12 @@ static int tg_rt_schedulable(struct task_group *tg, void *data)
 	unsigned long total, sum = 0;
 	u64 period, runtime;
 
-	period = ktime_to_ns(tg->rt_bandwidth.rt_period);
-	runtime = tg->rt_bandwidth.rt_runtime;
-
 	if (tg == d->tg) {
 		period = d->rt_period;
 		runtime = d->rt_runtime;
+	} else {
+		period = ktime_to_ns(tg->rt_bandwidth.rt_period);
+		runtime = tg->rt_bandwidth.rt_runtime;
 	}
 
 	/*
-- 
2.17.1