diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index 9aeeb52..3de89a4 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -54,7 +54,8 @@
 		struct page *page;
 
 		page = sg_page(walk->sg) + ((walk->offset - 1) >> PAGE_SHIFT);
-		flush_dcache_page(page);
+		if (!PageSlab(page))
+			flush_dcache_page(page);
 	}
 
 	if (more) {