patch-2.4.7 linux/include/asm-i386/atomic.h

• Lines: 11
• Date: Fri Jul 20 12:52:18 2001
• Orig file: v2.4.6/linux/include/asm-i386/atomic.h
• Orig date: Fri May 25 18:01:26 2001

diff -u --recursive --new-file v2.4.6/linux/include/asm-i386/atomic.h linux/include/asm-i386/atomic.h
@@ -195,4 +195,10 @@
 __asm__ __volatile__(LOCK "orl %0,%1" \
 : : "r" (mask),"m" (*addr) : "memory")
 
+/* Atomic operations are already serializing on x86 */
+#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