extern void synchronize_rcu(void);
-void *rcu_dereference(void *p)
+void *rcu_dereference_sym(void *p)
{
return _rcu_dereference(p);
}
void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
{
wmb();
- return uatomic_cmpxchg(p, old, _new);
-}
-
-void *rcu_publish_content_sym(void **p, void *v)
-{
- void *oldptr;
+ if (likely(URCU_CAS_AVAIL()))
+ return uatomic_cmpxchg(p, old, _new);
- oldptr = _rcu_xchg_pointer(p, v);
- synchronize_rcu();
- return oldptr;
+ /* Compatibility for i386. Old-timer. */
+ return compat_uatomic_cmpxchg(p, old, _new);
}