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: v2.6.24.4~30
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a542b46db3536a4009b618609058a44edad9d22d;p=thirdparty%2Fkernel%2Fstable.git

x86: move out tick_nohz_stop_sched_tick() call from the loop

[upstream commit: 3d97775a]

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>
Cc: Ed Tomlinson <edt@aei.ca>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ab79e1dfa0231..d7f7132307a55 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -212,14 +212,13 @@ 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)