From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Sun, 6 Sep 2015 23:40:13 +0000 (-0400)
Subject: Document locking assumption of agent_find_event()
X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=commitdiff_plain;h=1e17eae2caf39bcef3ce9a1602b00c70279c0db8

Document locking assumption of agent_find_event()

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/bin/lttng-sessiond/agent.c b/src/bin/lttng-sessiond/agent.c
index bc72ff93f..a4b1b3434 100644
--- a/src/bin/lttng-sessiond/agent.c
+++ b/src/bin/lttng-sessiond/agent.c
@@ -920,7 +920,8 @@ void agent_event_next_duplicate(const char *name,
 /*
  * Find a agent event in the given agent using name and loglevel.
  *
- * RCU read side lock MUST be acquired.
+ * RCU read side lock MUST be acquired. It must be kept for as long as
+ * the returned agent_event is used.
  *
  * Return object if found else NULL.
  */