-#define __NR_async_exec 280
-#define __NR_async_wait 281
-#define __NR_umem_add 282
-#define __NR_async_thread 283
+#define __NR_async_exec 286
+#define __NR_async_wait 287
+#define __NR_umem_add 288
+#define __NR_async_thread 289
-#define nop __asm__ __volatile__("rep;nop": : :"memory")
+#define nop __asm__ __volatile__("rep;nop": : :"memory")
+#define read_barrier() __asm__ __volatile__("lfence":::"memory")
+#define write_barrier() __asm__ __volatile__("sfence":::"memory")