Re: [TRIVIAL][PATCH] cpu_has_tsc cleanup

From: george anzinger (george@mvista.com)
Date: Thu Aug 08 2002 - 14:56:59 EST

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john stultz wrote:
>
> Marcelo,
>
> Here is a trivial cleanup patch that replaces:
> test_bit(X86_FEATURE_TSC, &boot_cpu_data.x86_capability)
> w/ the cpu_has_tsc macro.
>
> I believe this was originally by Brian Gerst for 2.5
>
This patch has a problem in the TSC not defined case in that
it access the PIT with out taking the required
locks. spin_lock_irq(&i8253_lock) is used to protect
the PIT...

-- 
George Anzinger   george@mvista.com
High-res-timers: 
http://sourceforge.net/projects/high-res-timers/
Preemption patch:
http://www.kernel.org/pub/linux/kernel/people/rml
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Next message: Andi Kleen: "Re: 64bit clean drivers was Re: Linux 2.4.20-pre1"
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