#define rmc() barrier()
#define wmc() barrier()
+#ifdef CONFIG_URCU_SMP
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#define smp_mc() mc()
#define smp_rmc() rmc()
#define smp_wmc() wmc()
+#else
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#define smp_mc() barrier()
+#define smp_rmc() barrier()
+#define smp_wmc() barrier()
+#endif
/* Nop everywhere except on alpha. */
#define smp_read_barrier_depends()