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cgroup: when we unload a unit, also update all its parent's members mask 

This way we can corectly ensure that when a unit that requires some
controller goes away, we propagate the removal of it all the way up, so
that the controller is turned off in all the parents too.
This commit is contained in:
Lennart Poettering 2018-11-23 01:13:47 +01:00
parent 5af8805872
commit b8b6f32104
1 changed files with 8 additions and 0 deletions
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8
src/core/unit.c
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@ -570,6 +570,14 @@ void unit_free(Unit *u) {
if (!u)
return;
if (UNIT_ISSET(u->slice)) {
/* A unit is being dropped from the tree, make sure our parent slice recalculates the member mask */
unit_invalidate_cgroup_members_masks(UNIT_DEREF(u->slice));
/* And make sure the parent is realized again, updating cgroup memberships */
unit_add_to_cgroup_realize_queue(UNIT_DEREF(u->slice));
}
u->transient_file = safe_fclose(u->transient_file);
if (!MANAGER_IS_RELOADING(u->manager))