pr_debug("Swap list %d was clean\n", i);
        spin_unlock(&glob->lru_lock);
 
-       drm_vma_offset_manager_destroy(&bdev->_vma_manager);
-
        if (!ret)
                ttm_bo_global_release();
 
        struct ttm_bo_global *glob = &ttm_bo_glob;
        int ret;
 
-       if (!vma_manager)
-               vma_manager = &bdev->_vma_manager;
+       if (WARN_ON(vma_manager == NULL))
+               return -EINVAL;
 
        ret = ttm_bo_global_init();
        if (ret)
                goto out_no_sys;
 
        bdev->vma_manager = vma_manager;
-       drm_vma_offset_manager_init(&bdev->_vma_manager,
-                                   DRM_FILE_PAGE_OFFSET_START,
-                                   DRM_FILE_PAGE_OFFSET_SIZE);
        INIT_DELAYED_WORK(&bdev->wq, ttm_bo_delayed_workqueue);
        INIT_LIST_HEAD(&bdev->ddestroy);
        bdev->dev_mapping = mapping;
 
  * @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
  * @man: An array of mem_type_managers.
  * @vma_manager: Address space manager (pointer)
- * @_vma_manager: Address space manager (enbedded)
  * lru_lock: Spinlock that protects the buffer+device lru lists and
  * ddestroy lists.
  * @dev_mapping: A pointer to the struct address_space representing the
         * Protected by internal locks.
         */
        struct drm_vma_offset_manager *vma_manager;
-       struct drm_vma_offset_manager _vma_manager;
 
        /*
         * Protected by the global:lru lock.
  * @glob: A pointer to an initialized struct ttm_bo_global.
  * @driver: A pointer to a struct ttm_bo_driver set up by the caller.
  * @mapping: The address space to use for this bo.
- * @vma_manager: A pointer to a vma manager or NULL.
+ * @vma_manager: A pointer to a vma manager.
  * @file_page_offset: Offset into the device address space that is available
  * for buffer data. This ensures compatibility with other users of the
  * address space.