Fix: membarrier fallback symbol conflict

[urcu.git] / urcu / map / urcu.h

diff --git a/urcu/map/urcu.h b/urcu/map/urcu.h
index 217bff56d99a48e763b9abdaedaabcd5429c1580..77b37215734bfa163fbe680a3582a5b8a0b2af66 100644 (file)
--- a/urcu/map/urcu.h
+++ b/urcu/map/urcu.h
@@ -38,31 +38,6 @@
 #define RCU_MEMBARRIER
 #endif
 
-/*
- * RCU_MEMBARRIER is only possibly available on Linux. Fallback to
- * RCU_MB
- * otherwise.
- */
-#if !defined(__linux__) && defined(RCU_MEMBARRIER)
-#undef RCU_MEMBARRIER
-#define RCU_MB
-#endif
-
-#ifdef RCU_MEMBARRIER
-#include <syscall.h>
-
-/* If the headers do not support SYS_membarrier, statically use RCU_MB */
-#ifdef SYS_membarrier
-# define MEMBARRIER_EXPEDITED          (1 << 0)
-# define MEMBARRIER_DELAYED            (1 << 1)
-# define MEMBARRIER_QUERY              (1 << 16)
-# define membarrier(...)               syscall(SYS_membarrier, __VA_ARGS__)
-#else
-# undef RCU_MEMBARRIER
-# define RCU_MB
-#endif
-#endif
-
 #ifdef RCU_MEMBARRIER
 
 #define rcu_read_lock                  rcu_read_lock_memb