1 files changed, 1 insertions, 8 deletions

diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index d6bdf906caa5..0e37cd041241 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -18,14 +18,7 @@ extern int spin_retry;
 static inline int
 _raw_compare_and_swap(unsigned int *lock, unsigned int old, unsigned int new)
 {
-        unsigned int old_expected = old;
-
-        asm volatile(
-                "       cs      %0,%3,%1"
-                : "=d" (old), "=Q" (*lock)
-                : "0" (old), "d" (new), "Q" (*lock)
-                : "cc", "memory" );
-        return old == old_expected;
+        return __sync_bool_compare_and_swap(lock, old, new);
 }
 
 /*