diff options
Diffstat (limited to 'arch/s390/include/asm/spinlock.h')
| -rw-r--r-- | arch/s390/include/asm/spinlock.h | 9 |
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); } /* |