[PATCH v3] add icswx support

[Benjamin Herrenschmidt]

On Tue, 2010-11-02 at 09:23 +1100, Michael Neuling wrote:
> +EXPORT_SYMBOL(switch_cop);
> +EXPORT_SYMBOL(use_cop);
> +EXPORT_SYMBOL(drop_cop);
> 
> Please document how to use these. 

Also, should these be _GPL ?

Cheers,
Ben.