[PATCH 2.6.21-rt7] PowerPC: fix clockevents for classic CPUs

[Segher Boessenkool]

>  	 * We must write a positive value to the decrementer to clear
> -	 * the interrupt on the IBM 970 CPU series.  In periodic mode,
> -	 * this happens when the decrementer gets reloaded later, but
> -	 * in one-shot mode, we have to do it here since an event handler
> -	 * may skip loading the new value...
> +	 * the interrupt on POWER4+ compatible CPUs.

No, it is *not* only on POWER4+ compatible CPUs.  Sigh.


Segher