>From 12dfac63a2e0977473115d8e10a96d1c0e91bf24 Mon Sep 17 00:00:00 2001
From: David S. Miller <davem@xxxxxxxxxxxxxxxxxxxx>
Date: Thu, 22 Feb 2007 06:24:45 -0800
Subject: [PATCH] [SPARC64]: Add tick_nohz_{stop,restart}_sched_tick() calls to cpu_idle().
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
---
arch/sparc64/kernel/process.c | 15 +++++++++------
1 files changed, 9 insertions(+), 6 deletions(-)
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 7d75cd4..cca0360 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -28,6 +28,7 @@
#include <linux/reboot.h>
#include <linux/delay.h>
#include <linux/compat.h>
+#include <linux/tick.h>
#include <linux/init.h>
#include <asm/oplib.h>
@@ -88,12 +89,14 @@ void cpu_idle(void)
set_thread_flag(TIF_POLLING_NRFLAG);
while(1) {
- if (need_resched()) {
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
- sparc64_yield();
+ tick_nohz_stop_sched_tick();
+ while (!need_resched())
+ sparc64_yield();
+ tick_nohz_restart_sched_tick();
+
+ preempt_enable_no_resched();
+ schedule();
+ preempt_disable();
}
}
--
1.5.0
-
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