qsbr: micro optimization of the gp use.

[urcu.git] / urcu-qsbr-static.h

diff --git a/urcu-qsbr-static.h b/urcu-qsbr-static.h
index b18affeb1be6ea203b7636e5f235011cd01580b7..8d8aa3f8f60519620dbcfb78aef1b007c6183e5c 100644 (file)
--- a/urcu-qsbr-static.h
+++ b/urcu-qsbr-static.h
@@ -176,7 +176,7 @@ static inline int rcu_gp_ongoing(long *value)
        if (value == NULL)
                return 0;
        reader_gp = LOAD_SHARED(*value);
-       return (reader_gp & 1) && (reader_gp - urcu_gp_ctr < 0);
+       return reader_gp && (reader_gp - urcu_gp_ctr < 0);
 }
 
 static inline void _rcu_read_lock(void)
@@ -191,7 +191,7 @@ static inline void _rcu_read_unlock(void)
 static inline void _rcu_quiescent_state(void)
 {
        smp_mb();       
-       _STORE_SHARED(rcu_reader_qs_gp, _LOAD_SHARED(urcu_gp_ctr) + 1);
+       _STORE_SHARED(rcu_reader_qs_gp, _LOAD_SHARED(urcu_gp_ctr));
        smp_mb();
 }
 
@@ -203,7 +203,7 @@ static inline void _rcu_thread_offline(void)
 
 static inline void _rcu_thread_online(void)
 {
-       _STORE_SHARED(rcu_reader_qs_gp, LOAD_SHARED(urcu_gp_ctr) + 1);
+       _STORE_SHARED(rcu_reader_qs_gp, LOAD_SHARED(urcu_gp_ctr));
        smp_mb();
 }