From df43510b18b8439465b4b58556f0495b5f5d771e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 13:33:23 +0100
Subject: [PATCH] x86: check_tsc_warp() slowness fix
100 million max # of loops is a bit too much - reduce it to 10 million.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/tsc_sync.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index ace340524c0..7110078f242 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -67,12 +67,12 @@ static __cpuinit void check_tsc_warp(void)
/*
* Be nice every now and then (and also check whether
- * measurement is done [we also insert a 100 million
+ * measurement is done [we also insert a 10 million
* loops safety exit, so we dont lock up in case the
* TSC readout is totally broken]):
*/
if (unlikely(!(i & 7))) {
- if (now > end || i > 100000000)
+ if (now > end || i > 10000000)
break;
cpu_relax();
touch_nmi_watchdog();
--
2.20.1