de-modularising for the win!

[Bill Nottingham]

Dave Jones (davej at redhat.com) said: 
> On Fri, Oct 03, 2008 at 11:25:49AM -0400, Peter Jones wrote:
>  > Bill Nottingham wrote:
>  > > See various and sundry plumber's conf discussions.
>  > > 
>  > > Comments? (The netfilter stuff needs further investigation.)
>  > 
>  > Also, please add these, since they're nearly always loaded (patch is on
>  > top of yours):
> 
> I think this makes sense to do now as a stop-gap, but one day,
> I hope we can get to a situation where we do modprobe of such
> things based on a config file instead of always doing it. 

Ideally the DM layer would be able to request_module() the map type
whenever necessary.

Bill