Fix: duplicated kernel consumer socket locking

[lttng-tools.git] / src / bin / lttng-sessiond / ust-app.c

diff --git a/src/bin/lttng-sessiond/ust-app.c b/src/bin/lttng-sessiond/ust-app.c
index 675283aa63477b3679aa27a7f8942d1c52453dae..60ff1be03b194eee686aa391e73615039988b3ab 100644 (file)
--- a/src/bin/lttng-sessiond/ust-app.c
+++ b/src/bin/lttng-sessiond/ust-app.c
@@ -2925,7 +2925,6 @@ static int create_channel_per_uid(struct ust_app *app,
                uint64_t chan_reg_key;
                struct ust_registry_channel *chan_reg;
 
-               rcu_read_lock();
                chan_reg_key = ua_chan->tracing_channel_id;
 
                pthread_mutex_lock(&reg_uid->registry->reg.ust->lock);
@@ -2946,7 +2945,6 @@ static int create_channel_per_uid(struct ust_app *app,
                                ua_chan->key,
                                LTTNG_DOMAIN_UST,
                                ua_chan->attr.subbuf_size * ua_chan->attr.num_subbuf);
-               rcu_read_unlock();
                if (cmd_ret != LTTNG_OK) {
                        ret = - (int) cmd_ret;
                        ERR("Failed to add channel to notification thread");
@@ -3579,8 +3577,8 @@ void ust_app_unregister(int sock)
        /*
         * Remove application from notify hash table. The thread handling the
         * notify socket could have deleted the node so ignore on error because
-        * either way it's valid. The close of that socket is handled by the other
-        * thread.
+        * either way it's valid. The close of that socket is handled by the
+        * apps_notify_thread.
         */
        iter.iter.node = &lta->notify_sock_n.node;
        (void) lttng_ht_del(ust_app_ht_by_notify_sock, &iter);