diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index b7f7f85..c0a9054 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -919,7 +919,7 @@
 				       do_write);
 	}
 
-	if (!do_write)
+	if (!do_write && !PageSlab(page))
 		flush_dcache_page(page);
 
 	qc->curbytes += qc->sect_size;