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x86: check_tsc_warp() slowness fix

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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>
This commit is contained in:
Ingo Molnar
2008-01-30 13:33:23 +01:00
parent ade1af7712
commit df43510b18
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/tsc_sync.c
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@@ -67,12 +67,12 @@ static __cpuinit void check_tsc_warp(void)
/* /*
* Be nice every now and then (and also check whether * 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 * loops safety exit, so we dont lock up in case the
* TSC readout is totally broken]): * TSC readout is totally broken]):
*/ */
if (unlikely(!(i & 7))) { if (unlikely(!(i & 7))) {
if (now > end || i > 100000000) if (now > end || i > 10000000)
break; break;
cpu_relax(); cpu_relax();
touch_nmi_watchdog(); touch_nmi_watchdog();