tmpfs_free_node_locked
bool tmpfs_free_node_locked(struct tmpfs_mount *, struct tmpfs_node *, bool);
if (!tmpfs_free_node_locked(tmp, node, false)) {
if (tmpfs_free_node_locked(tmp, node, true))
unlock = !tmpfs_free_node_locked(tmp, node, true);
if (tmpfs_free_node_locked(tm, tnp, false)) {