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move config.h to urcu/config.h and install it
[urcu.git]
/
urcu-pointer.c
diff --git
a/urcu-pointer.c
b/urcu-pointer.c
index 93d49875d6226fcaf18ec4aba147c28994ad6f0d..79ee72a08e7110ba67a44b80f834096543eaa379 100644
(file)
--- a/
urcu-pointer.c
+++ b/
urcu-pointer.c
@@
-30,7
+30,7
@@
extern void synchronize_rcu(void);
extern void synchronize_rcu(void);
-void *rcu_dereference(void *p)
+void *rcu_dereference
_sym
(void *p)
{
return _rcu_dereference(p);
}
{
return _rcu_dereference(p);
}
@@
-50,5
+50,9
@@
void *rcu_xchg_pointer_sym(void **p, void *v)
void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
{
wmb();
void *rcu_cmpxchg_pointer_sym(void **p, void *old, void *_new)
{
wmb();
- return uatomic_cmpxchg(p, old, _new);
+ if (likely(URCU_CAS_AVAIL()))
+ return uatomic_cmpxchg(p, old, _new);
+
+ /* Compatibility for i386. Old-timer. */
+ return compat_uatomic_cmpxchg(p, old, _new);
}
}
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