From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 19 Jan 2017 00:23:26 +0000 (-0500)
Subject: Fix: thread_dispatch_ust_registration needs to be a RCU thread
X-Git-Tag: v2.10.0-rc1~69
X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=commitdiff_plain;h=967e3668fc4d224563281a809b1483a397dd9534;ds=sidebyside

Fix: thread_dispatch_ust_registration needs to be a RCU thread

It uses a 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-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 40670ddd5..172f8c270 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1855,6 +1855,8 @@ static void *thread_dispatch_ust_registration(void *data)
 		.count = 0,
 	};
 
+	rcu_register_thread();
+
 	health_register(health_sessiond, HEALTH_SESSIOND_TYPE_APP_REG_DISPATCH);
 
 	if (testpoint(sessiond_thread_app_reg_dispatch)) {
@@ -2088,6 +2090,7 @@ error_testpoint:
 		ERR("Health error occurred in %s", __func__);
 	}
 	health_unregister(health_sessiond);
+	rcu_unregister_thread();
 	return NULL;
 }