From: george anzinger <george@mvista.com>
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
Date: Thu, 08 Aug 2002 12:56:59 -0700 [thread overview]
Message-ID: <3D52CD0B.AF8C5068@mvista.com> (raw)
In-Reply-To: 1028765030.22918.166.camel@cog
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
prev parent reply other threads:[~2002-08-08 19:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-08 0:03 [TRIVIAL][PATCH] cpu_has_tsc cleanup john stultz
2002-08-08 19:56 ` george anzinger [this message]
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