linux-kernel - [PATCH 12/38] tick-common: call tick_check_percpu() from tick_check

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Date:	Mon, 14 Apr 2014 21:53:34 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	tglx@...utronix.de
Cc:	linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
	fweisbec@...il.com, Arvind.Chauhan@....com,
	linaro-networking@...aro.org,
	Viresh Kumar <viresh.kumar@...aro.org>
Subject: [PATCH 12/38] tick-common: call tick_check_percpu() from tick_check_preferred()

tick_check_percpu() and tick_check_preferred() are called from two places and in
exactly same order. So, would make sense to call tick_check_percpu() from
tick_check_preferred() instead, so that their common caller can just call
tick_check_preferred().

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 kernel/time/tick-common.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 8650026..6868d6a 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -233,6 +233,9 @@ static bool tick_check_percpu(struct clock_event_device *curdev,
 static bool tick_check_preferred(struct clock_event_device *curdev,
 				 struct clock_event_device *newdev)
 {
+	if (!tick_check_percpu(curdev, newdev, smp_processor_id()))
+		return false;
+
 	/* Prefer oneshot capable device */
 	if (!(newdev->features & CLOCK_EVT_FEAT_ONESHOT)) {
 		if (curdev && (curdev->features & CLOCK_EVT_FEAT_ONESHOT))
@@ -257,9 +260,6 @@ static bool tick_check_preferred(struct clock_event_device *curdev,
 bool tick_check_replacement(struct clock_event_device *curdev,
 			    struct clock_event_device *newdev)
 {
-	if (!tick_check_percpu(curdev, newdev, smp_processor_id()))
-		return false;
-
 	return tick_check_preferred(curdev, newdev);
 }
 
@@ -273,10 +273,6 @@ void tick_check_new_device(struct clock_event_device *newdev)
 	struct tick_device *td = tick_get_device(cpu);
 	struct clock_event_device *curdev = td->evtdev;
 
-	/* cpu local device ? */
-	if (!tick_check_percpu(curdev, newdev, cpu))
-		goto out_bc;
-
 	/* Preference decision */
 	if (!tick_check_preferred(curdev, newdev))
 		goto out_bc;
-- 
1.7.12.rc2.18.g61b472e

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