linux-kernel - [PATCH 3/3] sched: add_nr_running(): drop tick_nohz_full

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Message-Id: <1441915107-2000-4-git-send-email-lcapitulino@redhat.com>
Date:	Thu, 10 Sep 2015 15:58:27 -0400
From:	Luiz Capitulino <lcapitulino@...hat.com>
To:	fweisbec@...il.com
Cc:	linux-kernel@...r.kernel.org, cmetcalf@...hip.com
Subject: [PATCH 3/3] sched: add_nr_running(): drop tick_nohz_full_cpu() check

tick_nohz_full_kick_cpu() performs the same check.

Signed-off-by: Luiz Capitulino <lcapitulino@...hat.com>
---
 kernel/sched/sched.h | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 68cda11..102eb18 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1323,17 +1323,15 @@ static inline void add_nr_running(struct rq *rq, unsigned count)
 #endif
 
 #ifdef CONFIG_NO_HZ_FULL
-		if (tick_nohz_full_cpu(rq->cpu)) {
-			/*
-			 * Tick is needed if more than one task runs on a CPU.
-			 * Send the target an IPI to kick it out of nohz mode.
-			 *
-			 * We assume that IPI implies full memory barrier and the
-			 * new value of rq->nr_running is visible on reception
-			 * from the target.
-			 */
-			tick_nohz_full_kick_cpu(rq->cpu);
-		}
+		/*
+		 * Tick is needed if more than one task runs on a CPU.
+		 * Send the target an IPI to kick it out of nohz mode.
+		 *
+		 * We assume that IPI implies full memory barrier and the
+		 * new value of rq->nr_running is visible on reception
+		 * from the target.
+		 */
+		tick_nohz_full_kick_cpu(rq->cpu);
 #endif
 	}
 }
-- 
2.1.0

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