patch-2.4.7 linux/include/asm-sparc/atomic.h

• Lines: 13
• Date: Mon Jul 9 21:32:02 2001
• Orig file: v2.4.6/linux/include/asm-sparc/atomic.h
• Orig date: Sun Mar 25 18:14:21 2001

diff -u --recursive --new-file v2.4.6/linux/include/asm-sparc/atomic.h linux/include/asm-sparc/atomic.h
@@ -100,6 +100,12 @@
 
 #define atomic_add_negative(i, v) (__atomic_add((i), (v)) < 0)
 
+/* Atomic operations are already serializing */
+#define smp_mb__before_atomic_dec()	barrier()
+#define smp_mb__after_atomic_dec()	barrier()
+#define smp_mb__before_atomic_inc()	barrier()
+#define smp_mb__after_atomic_inc()	barrier()
+
 #endif /* !(__KERNEL__) */
 
 #endif /* !(__ARCH_SPARC_ATOMIC__) */