X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=urcu.c;h=e258d96fab4e730d42fc22c4a3e58870e42bda4e;hb=5e7e64b952ac49cf61c4c3bfc02e5938c3691d94;hp=7e79207be6a88eaaf6d2b74c0b16b4543368a6fd;hpb=41718ff94c4a07cb5f56d68084267798e471d1b1;p=urcu.git

diff --git a/urcu.c b/urcu.c
index 7e79207..e258d96 100644
--- a/urcu.c
+++ b/urcu.c
@@ -1,3 +1,13 @@
+/*
+ * urcu.c
+ *
+ * Userspace RCU library
+ *
+ * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ *
+ * Distributed under GPLv2
+ */
+
 #include <stdio.h>
 #include <pthread.h>
 #include <signal.h>
@@ -91,7 +101,7 @@ void wait_for_quiescent_state(int parity)
 		/*
 		 * BUSY-LOOP.
 		 */
-		while (*index->urcu_active_readers != 0)
+		while (index->urcu_active_readers[parity] != 0)
 			barrier();
 	}
 	/*
@@ -107,9 +117,9 @@ void wait_for_quiescent_state(int parity)
  * Return old pointer, OK to free, no more reference exist.
  * Called under rcu_write_lock.
  */
-void *urcu_publish_content(void **ptr, void *new)
+void *_urcu_publish_content(void **ptr, void *new)
 {
-	int ret, prev_parity;
+	int prev_parity;
 	void *oldptr;
 
 	/*
@@ -124,8 +134,8 @@ void *urcu_publish_content(void **ptr, void *new)
 	 */
 	oldptr = *ptr;
 	*ptr = new;
-	wmb();		/* Write ptr before changing the qparity */
 	/* All threads should read qparity before ptr */
+	/* Write ptr before changing the qparity */
 	force_mb_all_threads();
 	prev_parity = switch_next_urcu_qparity();
 
@@ -197,7 +207,6 @@ void urcu_register_thread(void)
 
 void urcu_unregister_thread(void)
 {
-	pthread_t self = pthread_self();
 	rcu_write_lock();
 	urcu_remove_reader(pthread_self());
 	rcu_write_unlock();