diff --git a/crypto/scatterwalk.c b/crypto/scatterwalk.c
index 9aeeb52004a5399d0a9b7a3484044b5de1e3083c..3de89a424401c1918818145a3d27df627c99f7ef 100644
--- a/crypto/scatterwalk.c
+++ b/crypto/scatterwalk.c
@@ -54,7 +54,8 @@ static void scatterwalk_pagedone(struct scatter_walk *walk, int out,
 		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) {