X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=src%2Furcu-bp.c;h=671becb0e14644c6eeb37270ab154f1b95877549;hp=33f280799208c66f0337e25acfeaf8adce213aa1;hb=a142df4e35dcf835439bf6714e49e95a2a68f7a6;hpb=e37faee15dd9f26c131e064f4e3afe357afe1c73

diff --git a/src/urcu-bp.c b/src/urcu-bp.c
index 33f2807..671becb 100644
--- a/src/urcu-bp.c
+++ b/src/urcu-bp.c
@@ -37,6 +37,7 @@
 #include <stdbool.h>
 #include <sys/mman.h>
 
+#include <urcu/config.h>
 #include <urcu/arch.h>
 #include <urcu/wfcqueue.h>
 #include <urcu/map/urcu-bp.h>
@@ -74,8 +75,10 @@ void *mremap_wrapper(void *old_address, size_t old_size,
  * This is not generic.
 */
 static
-void *mremap_wrapper(void *old_address, size_t old_size,
-		size_t new_size, int flags)
+void *mremap_wrapper(void *old_address __attribute__((unused)),
+		size_t old_size __attribute__((unused)),
+		size_t new_size __attribute__((unused)),
+		int flags)
 {
 	assert(!(flags & MREMAP_MAYMOVE));
 
@@ -566,6 +569,12 @@ end:
 }
 URCU_ATTR_ALIAS("urcu_bp_register") void rcu_bp_register();
 
+void urcu_bp_register_thread(void)
+{
+	if (caa_unlikely(!URCU_TLS(urcu_bp_reader)))
+		urcu_bp_register(); /* If not yet registered. */
+}
+
 /* Disable signals, take mutex, remove from registry */
 static
 void urcu_bp_unregister(struct rcu_reader *rcu_reader_reg)