745x coherency fix for 2.4?

[Benjamin Herrenschmidt]

>  
> -#ifdef CONFIG_SMP
> -	if ((flags & _PAGE_NO_CACHE) == 0)
> +	if (((flags & _PAGE_NO_CACHE) == 0) &&
> +	    (cur_cpu_spec[0]->cpu_features & CPU_FTR_NEED_COHERENT))
>  		flags |= _PAGE_COHERENT;
> -#endif

Wouldn't your patch result in _not_ setting _PAGE_COHERENT on non-broken
CPUs when CONFIG_SMP is set ?

Ben.