ttm_tt_unbind(ttm);
}
- if (ttm->state == tt_unbound) {
- ttm->bdev->driver->ttm_tt_unpopulate(ttm);
- }
+ if (ttm->state == tt_unbound)
+ ttm_tt_unpopulate(ttm);
if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTENT_SWAP) &&
ttm->swap_storage)
page_cache_release(to_page);
}
- ttm->bdev->driver->ttm_tt_unpopulate(ttm);
+ ttm_tt_unpopulate(ttm);
ttm->swap_storage = swap_storage;
ttm->page_flags |= TTM_PAGE_FLAG_SWAPPED;
if (persistent_swap_storage)
return ret;
}
+
+static void ttm_tt_clear_mapping(struct ttm_tt *ttm)
+{
+ pgoff_t i;
+ struct page **page = ttm->pages;
+
+ for (i = 0; i < ttm->num_pages; ++i) {
+ (*page)->mapping = NULL;
+ (*page++)->index = 0;
+ }
+}
+
+void ttm_tt_unpopulate(struct ttm_tt *ttm)
+{
+ if (ttm->state == tt_unpopulated)
+ return;
+
+ ttm_tt_clear_mapping(ttm);
+ ttm->bdev->driver->ttm_tt_unpopulate(ttm);
+}