mm: migrate: support non-lru movable page migration

[deliverable/linux.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index ece042dfe23cbf46c196b868c8efaff71d7cc828..3e22335a435c5a8fb2b581b2e92b81aeb72fec50 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1035,6 +1035,7 @@ static inline pgoff_t page_file_index(struct page *page)
 }
 
 bool page_mapped(struct page *page);
+struct address_space *page_mapping(struct page *page);
 
 /*
  * Return true only if the page has been allocated with