remove ugly gcc warning removal ack, simply cast the caller parameter

[urcu.git] / urcu.h

diff --git a/urcu.h b/urcu.h
index bee7715270794c3e83cede4acb1741a98d361ac6..9431da547bfcc8245d07969de426ac33c7fe3d2d 100644 (file)
--- a/urcu.h
+++ b/urcu.h
@@ -1,6 +1,22 @@
 #ifndef _URCU_H
 #define _URCU_H
 
+/*
+ * urcu.h
+ *
+ * Userspace RCU header
+ *
+ * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ *
+ * Credits for Paul e. McKenney <paulmck@linux.vnet.ibm.com>
+ * for inspiration coming from the Linux kernel RCU and rcu-preempt.
+ *
+ * The barrier, mb, rmb, wmb, atomic_inc, smp_read_barrier_depends, ACCESS_ONCE
+ * and rcu_dereference primitives come from the Linux kernel.
+ *
+ * Distributed under GPLv2
+ */
+
 /* The "volatile" is due to gcc bugs */
 #define barrier() __asm__ __volatile__("": : :"memory")
 
@@ -9,9 +25,6 @@
 #define rmb()   asm volatile("lfence":::"memory")
 #define wmb()   asm volatile("sfence" ::: "memory")
 
-
-
-/* x86 32 */
 static inline void atomic_inc(int *v)
 {
        asm volatile("lock; incl %0"
@@ -97,6 +110,6 @@ extern void *urcu_publish_content(void **ptr, void *new);
  * Reader thread registration.
  */
 extern void urcu_register_thread(void);
-extern void urcu_register_thread(void);
+extern void urcu_unregister_thread(void);
 
 #endif /* _URCU_H */