linux-kernel - [PATCH 04/13] tick: Use timekeeping_cpu() to elect the CPU handling timekeeping duty

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Date:	Tue, 17 Dec 2013 23:51:23 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	John Stultz <john.stultz@...aro.org>,
	Alex Shi <alex.shi@...aro.org>,
	Kevin Hilman <khilman@...aro.org>
Subject: [PATCH 04/13] tick: Use timekeeping_cpu() to elect the CPU handling timekeeping duty

Now that we have an API to determine if a CPU is allowed to handle
timekeeping duty, use it now on timekeeper selection time for clarity.

Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Steven Rostedt <rostedt@...dmis.org>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: John Stultz <john.stultz@...aro.org>
Cc: Alex Shi <alex.shi@...aro.org>
Cc: Kevin Hilman <khilman@...aro.org>
---
 kernel/time/tick-common.c | 2 +-
 kernel/time/tick-sched.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 64522ec..755dcd6 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -163,7 +163,7 @@ static void tick_setup_device(struct tick_device *td,
 		 * this cpu:
 		 */
 		if (tick_do_timer_cpu == TICK_DO_TIMER_BOOT) {
-			if (!tick_nohz_full_cpu(cpu))
+			if (tick_timekeeping_cpu(cpu))
 				tick_do_timer_cpu = cpu;
 			else
 				tick_do_timer_cpu = TICK_DO_TIMER_NONE;
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index df6432d..ea0d411 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -118,7 +118,7 @@ static void tick_sched_do_timer(ktime_t now)
 	 * jiffies_lock.
 	 */
 	if (unlikely(tick_do_timer_cpu == TICK_DO_TIMER_NONE)
-	    && !tick_nohz_full_cpu(cpu))
+	    && tick_timekeeping_cpu(cpu))
 		tick_do_timer_cpu = cpu;
 #endif
 
-- 
1.8.3.1

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