dmirror_chunk
struct dmirror_chunk **devmem_chunks;
static void dmirror_device_evict_chunk(struct dmirror_chunk *chunk)
static void dmirror_remove_free_pages(struct dmirror_chunk *devmem)
struct dmirror_chunk *devmem =
static struct dmirror_chunk *dmirror_page_to_chunk(struct page *page)
return container_of(page_pgmap(page), struct dmirror_chunk,
struct dmirror_chunk *devmem;
struct dmirror_chunk **new_chunks;