urcu-qsbr: document compiler barrier

[urcu.git] / urcu.c

diff --git a/urcu.c b/urcu.c
index 5d09a62cfe935072ed0f9471a70c59d0cab4f98e..b8567555d09ecbb22547aa6f236392d439eea871 100644 (file)
--- a/urcu.c
+++ b/urcu.c
@@ -346,7 +346,7 @@ void rcu_register_thread(void)
 {
        rcu_reader.tid = pthread_self();
        assert(rcu_reader.need_mb == 0);
-       assert(rcu_reader.ctr == 0);
+       assert(!(rcu_reader.ctr & RCU_GP_CTR_NEST_MASK));
 
        mutex_lock(&rcu_gp_lock);
        rcu_init();     /* In case gcc does not support constructor attribute */