diff --git a/include/asm-mips/bitops.h b/include/asm-mips/bitops.h
index 0d3373f..5478d94 100644
--- a/include/asm-mips/bitops.h
+++ b/include/asm-mips/bitops.h
@@ -240,6 +240,8 @@
 	unsigned short bit = nr & SZLONG_MASK;
 	unsigned long res;
 
+	smp_llsc_mb();
+
 	if (cpu_has_llsc && R10000_LLSC_WAR) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
@@ -308,6 +310,8 @@
 	unsigned short bit = nr & SZLONG_MASK;
 	unsigned long res;
 
+	smp_llsc_mb();
+
 	if (cpu_has_llsc && R10000_LLSC_WAR) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
@@ -396,6 +400,8 @@
 	unsigned short bit = nr & SZLONG_MASK;
 	unsigned long res;
 
+	smp_llsc_mb();
+
 	if (cpu_has_llsc && R10000_LLSC_WAR) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;