X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=doc%2Fexamples%2Furcu-flavors%2Fsignal.c;h=b7c279c9157732cbb4084ec1c2b041be2958a368;hp=53bb57f9b6780bbeea2d8e584d5905ba86137636;hb=238eb13d671cc39e181203923ccae3e5c5b84148;hpb=7ff54418ffac313216eac70d7af1474a78c21706

diff --git a/doc/examples/urcu-flavors/signal.c b/doc/examples/urcu-flavors/signal.c
index 53bb57f..b7c279c 100644
--- a/doc/examples/urcu-flavors/signal.c
+++ b/doc/examples/urcu-flavors/signal.c
@@ -107,6 +107,12 @@ int main(int argc, char **argv)
 	 */
 	cds_list_for_each_entry_safe(node, n, &mylist, node) {
 		cds_list_del_rcu(&node->node);
+		/*
+		 * call_rcu() will ensure that the handler
+		 * "rcu_free_node" is executed after a grace period.
+		 * call_rcu() can be called from RCU read-side critical
+		 * sections.
+		 */
 		call_rcu(&node->rcu_head, rcu_free_node);
 	}