Fix int->long and keep a reader count of 1 in the global GP variable

[urcu.git] / urcu.c

diff --git a/urcu.c b/urcu.c
index 9fde6238f695b06db846866a704f9ed595bd6d0c..d4a06844885cde3da2d03092e3e9c45a939e0438 100644 (file)
--- a/urcu.c
+++ b/urcu.c
@@ -19,17 +19,21 @@
 
 pthread_mutex_t urcu_mutex = PTHREAD_MUTEX_INITIALIZER;
 
-/* Global grace period counter */
-int urcu_gp_ctr;
+/*
+ * Global grace period counter.
+ * Contains the current RCU_GP_CTR_BIT.
+ * Also has a RCU_GP_CTR_BIT of 1, to accelerate the reader fast path.
+ */
+long urcu_gp_ctr = RCU_GP_COUNT;
 
-int __thread urcu_active_readers;
+long __thread urcu_active_readers;
 
 /* Thread IDs of registered readers */
 #define INIT_NUM_THREADS 4
 
 struct reader_data {
        pthread_t tid;
-       int *urcu_active_readers;
+       long *urcu_active_readers;
 };
 
 #ifdef DEBUG_YIELD
@@ -147,7 +151,7 @@ void synchronize_rcu(void)
        debug_yield_write();
        switch_qparity();
        debug_yield_write();
-       internal_urcu_lock();
+       internal_urcu_unlock();
        debug_yield_write();
 }