[PATCH 2/3] EXA: Don't defragment offscreen memory at allocation time.

[Nix]

On 30 Nov 2009, Michel Dänzer uttered the following:
> There's still the regular background defragmentation in the WakeupHandler,
> which should manage to keep fragmentation at a reasonable level.

It should do. It normally takes minutes for the thing to get so
fragmented that scrolling slows down, and we defragment every 1/10s or
something like that, don't we?