Merge tag 'ttm-next-2014-04-04' of git://people.freedesktop.org/~thomash/linux into drm-next

Pull request of 2014-04-04

Currently only a single patch fixing up mixed use of the ttm_bo_reserve and
ww_mutex APIs

* tag 'ttm-next-2014-04-04' of git://people.freedesktop.org/~thomash/linux:
  drm/ttm: Hide the implementation details of reservation