1cat <<EOF
 
 
 
2	${int} r, o = *old;
3	r = raw_${atomic}_cmpxchg${order}(v, o, new);
4	if (unlikely(r != o))
5		*old = r;
6	return likely(r == o);
 
7EOF

 1cat <<EOF
 2static __always_inline bool
 3arch_${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
 4{
 5	${int} r, o = *old;
 6	r = arch_${atomic}_cmpxchg${order}(v, o, new);
 7	if (unlikely(r != o))
 8		*old = r;
 9	return likely(r == o);
10}
11EOF