From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Sun, 23 Aug 2015 03:35:22 +0000 (-0400)
Subject: Remove unneeded RCU lock
X-Git-Tag: v2.8.0-rc1~476
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=1a29cff2973695e90fa1688b15760c8e98863d6b;p=lttng-tools.git

Remove unneeded RCU lock

lttng_ht_get_count() already holds the RCU read lock.

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

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 8f450acde..30cfc21c4 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -1903,9 +1903,7 @@ int cmd_start_trace(struct ltt_session *session)
 	 * possible to enable channel thus inform the client.
 	 */
 	if (usess && usess->domain_global.channels) {
-		rcu_read_lock();
 		nb_chan += lttng_ht_get_count(usess->domain_global.channels);
-		rcu_read_unlock();
 	}
 	if (ksession) {
 		nb_chan += ksession->channel_count;