Re: [TRIVIAL][PATCH] cpu_has_tsc cleanup

[george anzinger]

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   [e-mail]
High-res-timers: 
http://sourceforge.net/projects/high-res-timers/
Preemption patch:
http://www.kernel.org/pub/linux/kernel/people/rml