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From: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 01/16] x86, mce: don't init timer if !mce_available
Date: Mon, 15 Jun 2009 17:18:45 +0900	[thread overview]
Message-ID: <4A3603E5.3030408@jp.fujitsu.com> (raw)
In-Reply-To: <4A3601BF.2000201@jp.fujitsu.com>

In mce_cpu_restart, mce_init_timer is called unconditionally.
If !mce_available (e.g. mce is disabled), there are no useful work
for timer.  Stop running it.

Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
---
 arch/x86/kernel/cpu/mcheck/mce.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index fabba15..6f9db11 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1609,8 +1609,9 @@ static int mce_resume(struct sys_device *dev)
 static void mce_cpu_restart(void *data)
 {
 	del_timer_sync(&__get_cpu_var(mce_timer));
-	if (mce_available(&current_cpu_data))
-		mce_init();
+	if (!mce_available(&current_cpu_data))
+		return;
+	mce_init();
 	mce_init_timer();
 }
 
-- 
1.6.3



  reply	other threads:[~2009-06-15  8:19 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-15  8:09 [PATCH 00/16] last-minute patches for MCE .31 Hidetoshi Seto
2009-06-15  8:18 ` Hidetoshi Seto [this message]
2009-06-15  8:19 ` [PATCH 02/16] x86, mce: call-in should be after updating global_nwo Hidetoshi Seto
2009-06-15  8:26   ` huang ying
2009-06-15  8:40     ` Hidetoshi Seto
2009-06-15  9:18     ` [PATCH] x86, mce: cleanup mce_start() Hidetoshi Seto
2009-06-15  8:20 ` [PATCH 03/16] x86, mce: add __read_mostly Hidetoshi Seto
2009-06-15  8:20 ` [PATCH 04/16] x86, mce: rename static variables around trigger Hidetoshi Seto
2009-06-15  8:21 ` [PATCH 05/16] x86, mce: sysfs entries for new options Hidetoshi Seto
2009-06-15  8:22 ` [PATCH 06/16] x86, mce: unify mce.h Hidetoshi Seto
2009-06-15  8:22 ` [PATCH 07/16] x86, mce: make mce_disabled boolean Hidetoshi Seto
2009-06-15  8:23 ` [PATCH 08/16] x86, mce: unify smp_thermal_interrupt, prepare p4 Hidetoshi Seto
2009-06-15  8:24 ` [PATCH 09/16] x86, mce: unify smp_thermal_interrupt, prepare mce_intel_64 Hidetoshi Seto
2009-06-15  8:24 ` [PATCH 10/16] x86, mce: unify smp_thermal_interrupt, prepare Hidetoshi Seto
2009-06-15  8:25 ` [PATCH 11/16] x86, mce: unify smp_thermal_interrupt Hidetoshi Seto
2009-06-15  8:26 ` [PATCH 12/16] x86, mce: squash mce_intel.c into therm_throt.c Hidetoshi Seto
2009-06-18  5:49   ` huang ying
2009-06-18  7:31     ` Hidetoshi Seto
2009-06-18  8:00       ` huang ying
2009-06-18 13:59         ` H. Peter Anvin
2009-06-18 13:56     ` H. Peter Anvin
2009-06-15  8:26 ` [PATCH 13/16] x86, mce: remove intel_set_thermal_handler() Hidetoshi Seto
2009-06-15  8:27 ` [PATCH 14/16] x86, mce: remove therm_throt.h Hidetoshi Seto
2009-06-15  8:27 ` [PATCH 15/16] x86, mce: mce.h cleanup Hidetoshi Seto
2009-06-15  8:28 ` [PATCH 16/16] x86, mce: rename Hidetoshi Seto

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