From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Date: Wed, 30 Jan 2008 12:33:00 +0000 (+0100)
Subject: x86: move out tick_nohz_stop_sched_tick() call from the loop
X-Git-Tag: v2.6.25-rc1~1143^2~339
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3d97775a80a03013abe1fd681620925f884ad18a;p=platform%2Fkernel%2Flinux-3.10.git

x86: move out tick_nohz_stop_sched_tick() call from the loop

Move out tick_nohz_stop_sched_tick() call from the loop in cpu_idle
same as 32-bit version.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 78d8006..a0130eb 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -170,14 +170,13 @@ void cpu_idle(void)
 	current_thread_info()->status |= TS_POLLING;
 	/* endless idle loop with no priority at all */
 	while (1) {
+		tick_nohz_stop_sched_tick();
 		while (!need_resched()) {
 			void (*idle)(void);
 
 			if (__get_cpu_var(cpu_idle_state))
 				__get_cpu_var(cpu_idle_state) = 0;
 
-			tick_nohz_stop_sched_tick();
-
 			rmb();
 			idle = pm_idle;
 			if (!idle)