+#ifdef __SUBARCH_HAS_LWSYNC
+# define SMPWMB lwsync
+#else
+# define SMPWMB eieio
+#endif
+
#define smp_mb() mb()
#define smp_rmb() rmb()
-#define smp_wmb() eieio()
+#define smp_wmb() __asm__ __volatile__ (__stringify(SMPWMB) : :
:"memory")
SMPWMB is used only here. Why not just
#ifdef __SUBARCH_HAS_LWSYNC
#define smp_wmb() lwsync()
#else
#define smp_wmb() eieio()
#endif
?
Segher
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