[3/3] sparsemem memory model for ppc64

[Andy Whitcroft]

Olof Johansson wrote:
> Hi,
> 
> Just two formatting nitpicks below.

Thanks, this would be better served by rewriting the first comment and
removing the second all together.

/* Add all physical memory to the bootmem map, mark each area
 * present.  The first block has already been marked present above.
 */

I note that the diff in question has sneaked into the wrong patch, that
segement represents memory_present.  So I'll rediff them with it there.
 No overall change to the code.

-apw