- assert(name);
-
- r = cg_split_spec(name, &controller, &path);
- if (r < 0)
- return r;
-
- if (!path) {
- path = unit_default_cgroup_path(u);
- ours = true;
- }
-
- if (!controller) {
- controller = strdup("systemd");
- ours = true;
- }
-
- if (!path || !controller) {
- free(path);
- free(controller);
- return log_oom();
- }
-
- if (streq(controller, "systemd")) {
- /* Within the systemd unit hierarchy we do not allow changes. */
- if (path_startswith(path, "/system")) {
- log_warning_unit(u->id, "Manipulating the systemd:/system cgroup hierarchy is not permitted.");
- free(path);
- free(controller);
- return -EPERM;
- }
- }
-
- b = cgroup_bonding_find_list(u->cgroup_bondings, controller);
- if (b) {
- if (streq(path, b->path)) {
- free(path);
- free(controller);
-
- if (ret)
- *ret = b;
- return 0;
- }
-
- if (overwrite && !b->essential) {
- free(controller);
-
- free(b->path);
- b->path = path;
-
- b->ours = ours;
- b->realized = false;
-
- if (ret)
- *ret = b;
-
- return 1;
- }
-
- r = -EEXIST;
- b = NULL;
- goto fail;
- }
-
- b = new0(CGroupBonding, 1);
- if (!b) {
- r = -ENOMEM;
- goto fail;
- }
-
- b->controller = controller;
- b->path = path;
- b->ours = ours;
- b->essential = streq(controller, SYSTEMD_CGROUP_CONTROLLER);
-
- r = unit_add_cgroup(u, b);
- if (r < 0)
- goto fail;
-
- if (ret)
- *ret = b;
-
- return 1;
-
-fail:
- free(path);
- free(controller);
- free(b);
-
- return r;
-}
-
-static int unit_add_one_default_cgroup(Unit *u, const char *controller) {
- CGroupBonding *b = NULL;
- int r = -ENOMEM;
-
- assert(u);
-
- if (controller && !cg_controller_is_valid(controller, true))
- return -EINVAL;