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-rw-r--r--arch/x32/atomic.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x32/atomic.h b/arch/x32/atomic.h
index 2ab1f7a2..7690183d 100644
--- a/arch/x32/atomic.h
+++ b/arch/x32/atomic.h
@@ -83,7 +83,7 @@ static inline void a_dec(volatile int *x)
 
 static inline void a_store(volatile int *p, int x)
 {
-	__asm__( "mov %1, %0 ; mfence" : "=m"(*p) : "r"(x) : "memory" );
+	__asm__( "mov %1, %0 ; lock ; orl $0,(%%rsp)" : "=m"(*p) : "r"(x) : "memory" );
 }
 
 static inline void a_spin()