X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fcmd.c;h=2c6f6f4a7bcb443d4a7e6638e489bd04d395e8bc;hp=2dcc52b7a2aff880bdfbb1c9fc61cb8ece35c27d;hb=50d7299da86d8bb8e2f9e888b70abf528aaca2d8;hpb=a2361a610dc8201cc8e165a70682b2f6dc3e0aee

diff --git a/src/bin/lttng-sessiond/cmd.c b/src/bin/lttng-sessiond/cmd.c
index 2dcc52b7a..2c6f6f4a7 100644
--- a/src/bin/lttng-sessiond/cmd.c
+++ b/src/bin/lttng-sessiond/cmd.c
@@ -3054,12 +3054,14 @@ static uint64_t get_session_max_subbuf_size(struct ltt_session *session)
 		struct ltt_ust_channel *uchan;
 		struct ltt_ust_session *usess = session->ust_session;
 
+		rcu_read_lock();
 		cds_lfht_for_each_entry(usess->domain_global.channels->ht, &iter.iter,
 				uchan, node.node) {
 			if (uchan->attr.subbuf_size > max_size) {
 				max_size = uchan->attr.subbuf_size;
 			}
 		}
+		rcu_read_unlock();
 	}
 
 	return max_size;