[PATCH 2/6] ttm: Introduce ttm_page_alloc_func structure.

Which has the function members for all of the current page pool operations defined. The old calls (ttm_put_pages, ttm_get_pages, etc) are plumbed through little functions which lookup in the ttm_page_alloc_func the appropiate implementation and call it. There is currently only one page pool code s

[PATCH 2/6] ttm: Introduce ttm_page_alloc_func structure.

Which has the function members for all of the current page pool operations defined. The old calls (ttm_put_pages, ttm_get_pages, etc) are plumbed through little functions which lookup in the ttm_page_alloc_func the appropiate implementation and call it. There is currently only one page pool code s