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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>
This commit is contained in:
Hiroshi Shimamoto 2008-01-30 13:33:00 +01:00 committed by Ingo Molnar
parent d50efc6c40
commit 3d97775a80
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kernel/process_64.c
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@ -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)