+function enable_lttng_mmap_overwrite_ust_channel()
+{
+ sess_name=$1
+ channel_name=$2
+
+ $TESTDIR/../src/bin/lttng/$LTTNG_BIN enable-channel -s $sess_name $channel_name -u --output mmap --overwrite >/dev/null 2>&1
+ ok $? "Enable channel $channel_name for session $sess_name"
+}
+