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Date: Thu, 08 Aug 2002 12:56:59 -0700
From: george anzinger <george@mvista.com>
Organization: Monta Vista Software
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To: john stultz <johnstul@us.ibm.com>
CC: marcelo <marcelo@conectiva.com.br>, lkml <linux-kernel@vger.kernel.org>
Subject: Re: [TRIVIAL][PATCH] cpu_has_tsc cleanup
References: <1028765030.22918.166.camel@cog>
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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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