X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fmain.c;h=8a183db28d226a0b25d924889a4ac9ed2715e11a;hb=68924dc1c9ab647a8b6165e00f74593f9e3da1cf;hp=7b313818e5c09a5719339740f47b2787304d461b;hpb=06a6840183b2f0415d4843313ba50c1562d5f212;p=lttng-tools.git

diff --git a/src/bin/lttng-relayd/main.c b/src/bin/lttng-relayd/main.c
index 7b313818e..8a183db28 100644
--- a/src/bin/lttng-relayd/main.c
+++ b/src/bin/lttng-relayd/main.c
@@ -969,12 +969,16 @@ static void *relay_thread_dispatcher(void *data)
 
 	health_code_update();
 
-	while (!CMM_LOAD_SHARED(dispatch_thread_exit)) {
+	for (;;) {
 		health_code_update();
 
 		/* Atomically prepare the queue futex */
 		futex_nto1_prepare(&relay_conn_queue.futex);
 
+		if (CMM_LOAD_SHARED(dispatch_thread_exit)) {
+			break;
+		}
+
 		do {
 			health_code_update();
 
@@ -2937,6 +2941,12 @@ exit_init_data:
 	health_app_destroy(health_relayd);
 exit_health_app_create:
 exit_options:
+	/*
+	 * Wait for all pending call_rcu work to complete before tearing
+	 * down data structures. call_rcu worker may be trying to
+	 * perform lookups in those structures.
+	 */
+	rcu_barrier();
 	relayd_cleanup();
 
 	/* Ensure all prior call_rcu are done. */