cgroup: extend comment on what unit_release_cgroup() is for

2018-11-23 13:41:37 +01:00
parent 1fd3a10c38
commit 8a0d538815
1 changed files with 2 additions and 1 deletions
@@ -2005,7 +2005,8 @@ int unit_realize_cgroup(Unit *u) {
 void unit_release_cgroup(Unit *u) {
        assert(u);

-        /* Forgets all cgroup details for this cgroup */
+        /* Forgets all cgroup details for this cgroup — but does *not* destroy the cgroup. This is hence OK to call
+         * when we close down everything for reexecution, where we really want to leave the cgroup in place. */

        if (u->cgroup_path) {
                (void) hashmap_remove(u->manager->cgroup_unit, u->cgroup_path);