diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 918f0ba4f4d20f9934929639dcd4190b0b0f5a1e..5e26e2c4641b47ee0804f66c363dc7f12e08ed91 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -31,7 +31,7 @@
 	pcp_op_T__ *ptr__;						\
 	preempt_disable_notrace();					\
 	ptr__ = raw_cpu_ptr(&(pcp));					\
-	prev__ = *ptr__;						\
+	prev__ = READ_ONCE(*ptr__);					\
 	do {								\
 		old__ = prev__;						\
 		new__ = old__ op (val);					\