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-rw-r--r--include/linux/mm.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 24659ed06bae..4f3c1b2f44de 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -605,9 +605,12 @@ static inline struct address_space *page_mapping(struct page *page)
struct address_space *mapping = page->mapping;
VM_BUG_ON(PageSlab(page));
+#ifdef CONFIG_SWAP
if (unlikely(PageSwapCache(page)))
mapping = &swapper_space;
- else if (unlikely((unsigned long)mapping & PAGE_MAPPING_ANON))
+ else
+#endif
+ if (unlikely((unsigned long)mapping & PAGE_MAPPING_ANON))
mapping = NULL;
return mapping;
}