s390/cmpxchg: Provide arch_cmpxchg128_local()

Just like x86 and arm64 provide a trivial arch_cmpxchg128_local()
implementation by mapping it to arch_cmpxchg128().

Reviewed-by: Juergen Christ <jchrist@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 26699347cc1aed583496405ea66064e19f843263..9407e6494afa47dcafb48738335582b217204b8f 100644 (file)
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -249,5 +249,6 @@ static __always_inline u128 arch_cmpxchg128(volatile u128 *ptr, u128 old, u128 n
 }
 
 #define arch_cmpxchg128                arch_cmpxchg128
+#define arch_cmpxchg128_local  arch_cmpxchg128
 
 #endif /* __ASM_CMPXCHG_H */