From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 19 Jan 2017 00:23:27 +0000 (-0500)
Subject: Fix: consumerd main: needs to be a registered RCU thread
X-Git-Tag: v2.8.7~26
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=d2cb1b98a8ee113bfe1b195465037c112dd2362a;p=lttng-tools.git

Fix: consumerd main: needs to be a registered RCU thread

main->lttng_consumer_destroy->destroy_data_stream_ht requires a RCU
read-side lock.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-consumerd/lttng-consumerd.c b/src/bin/lttng-consumerd/lttng-consumerd.c
index 293654053..48d4eec9e 100644
--- a/src/bin/lttng-consumerd/lttng-consumerd.c
+++ b/src/bin/lttng-consumerd/lttng-consumerd.c
@@ -308,6 +308,8 @@ int main(int argc, char **argv)
 	void *status;
 	struct lttng_consumer_local_data *tmp_ctx;
 
+	rcu_register_thread();
+
 	if (set_signal_handler()) {
 		retval = -1;
 		goto exit_set_signal_handler;
@@ -649,6 +651,8 @@ exit_health_consumerd_cleanup:
 exit_options:
 exit_set_signal_handler:
 
+	rcu_unregister_thread();
+
 	if (!retval) {
 		exit(EXIT_SUCCESS);
 	} else {