lkml.org 
[lkml]   [2008]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[patch 49/76] x86: move out tick_nohz_stop_sched_tick() call from the loop
-stable review patch.  If anyone has any objections, please let us know.
---------------------

From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

[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>
---
arch/x86/kernel/process_64.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)

--- 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)
--


\
 
 \ /
  Last update: 2008-03-22 00:15    [W:0.227 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site