Allow forcing the use of sys membarrier

[urcu.git] / include / urcu / static / urcu-bp.h

diff --git a/include/urcu/static/urcu-bp.h b/include/urcu/static/urcu-bp.h
index 6e52d84bafe84f75dfd45593a2b58cad6431bcd0..6bcfab4f404177196e347b55ec25e2ffedf49750 100644 (file)
--- a/include/urcu/static/urcu-bp.h
+++ b/include/urcu/static/urcu-bp.h
@@ -33,6 +33,7 @@
 #include <pthread.h>
 #include <unistd.h>
 
+#include <urcu/config.h>
 #include <urcu/compiler.h>
 #include <urcu/arch.h>
 #include <urcu/system.h>
@@ -102,7 +103,11 @@ struct rcu_reader {
  */
 extern DECLARE_URCU_TLS(struct rcu_reader *, rcu_reader);
 
+#ifdef CONFIG_RCU_FORCE_SYS_MEMBARRIER
+#define urcu_bp_has_sys_membarrier     1
+#else
 extern int urcu_bp_has_sys_membarrier;
+#endif
 
 static inline void urcu_bp_smp_mb_slave(void)
 {