LIST_FOREACH(device_weights, w, c->blockio_device_weights)
fprintf(f,
- "%sBlockIOWeight=%s %lu",
+ "%sBlockIODeviceWeight=%s %lu",
prefix,
w->path,
w->weight);
if (!path)
return -ENOMEM;
+ r = hashmap_put(u->manager->cgroup_unit, path, u);
+ if (r < 0)
+ return r;
+
/* First, create our own group */
r = cg_create_with_mask(mask, path);
if (r < 0)
return 0;
}
-static void unit_realize_cgroup_now(Unit *u) {
+static int unit_realize_cgroup_now(Unit *u) {
CGroupControllerMask mask;
assert(u);
if (u->cgroup_realized &&
u->cgroup_mask == mask)
- return;
+ return 0;
/* First, realize parents */
if (UNIT_ISSET(u->slice))
unit_realize_cgroup_now(UNIT_DEREF(u->slice));
/* And then do the real work */
- unit_create_cgroups(u, mask);
+ return unit_create_cgroups(u, mask);
}
static void unit_add_to_cgroup_queue(Unit *u) {
while ((i = m->cgroup_queue)) {
assert(i->in_cgroup_queue);
- unit_realize_cgroup_now(i);
- cgroup_context_apply(unit_get_cgroup_context(i), i->cgroup_mask, i->cgroup_path);
+ if (unit_realize_cgroup_now(i) >= 0)
+ cgroup_context_apply(unit_get_cgroup_context(i), i->cgroup_mask, i->cgroup_path);
+
n++;
}
}
}
-void unit_realize_cgroup(Unit *u) {
+int unit_realize_cgroup(Unit *u) {
CGroupContext *c;
+ int r;
assert(u);
c = unit_get_cgroup_context(u);
if (!c)
- return;
+ return 0;
/* So, here's the deal: when realizing the cgroups for this
* unit, we need to first create all parents, but there's more
unit_queue_siblings(u);
/* And realize this one now */
- unit_realize_cgroup_now(u);
+ r = unit_realize_cgroup_now(u);
/* And apply the values */
- cgroup_context_apply(c, u->cgroup_mask, u->cgroup_path);
+ if (r >= 0)
+ cgroup_context_apply(c, u->cgroup_mask, u->cgroup_path);
+
+ return r;
}
void unit_destroy_cgroup(Unit *u) {
if (!u->cgroup_path)
return;
- r = cg_trim_with_mask(u->cgroup_mask, u->cgroup_path, true);
+ r = cg_trim_with_mask(u->cgroup_mask, u->cgroup_path, !unit_has_name(u, SPECIAL_ROOT_SLICE));
if (r < 0)
- log_error("Failed to destroy cgroup %s: %s", u->cgroup_path, strerror(-r));
+ log_debug("Failed to destroy cgroup %s: %s", u->cgroup_path, strerror(-r));
+
+ hashmap_remove(u->manager->cgroup_unit, u->cgroup_path);
free(u->cgroup_path);
u->cgroup_path = NULL;
u->cgroup_realized = false;
u->cgroup_mask = 0;
+
}
pid_t unit_search_main_pid(Unit *u) {
}
/* 4. Realize the system slice and put us in there */
- a = strappenda(m->cgroup_root, "/" SPECIAL_SYSTEM_SLICE);
- r = cg_create_and_attach(SYSTEMD_CGROUP_CONTROLLER, a, 0);
+ if (m->running_as == SYSTEMD_SYSTEM) {
+ a = strappenda(m->cgroup_root, "/" SPECIAL_SYSTEM_SLICE);
+ r = cg_create_and_attach(SYSTEMD_CGROUP_CONTROLLER, a, 0);
+ } else
+ r = cg_create_and_attach(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_root, 0);
if (r < 0) {
log_error("Failed to create root cgroup hierarchy: %s", strerror(-r));
return r;
assert(m);
assert(cgroup);
- r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, cgroup, true);
- if (r == 0)
- return 0;
-
u = manager_get_unit_by_cgroup(m, cgroup);
- if (u && UNIT_VTABLE(u)->notify_cgroup_empty)
- UNIT_VTABLE(u)->notify_cgroup_empty(u);
+ if (u) {
+ r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, u->cgroup_path, true);
+ if (r > 0) {
+ if (UNIT_VTABLE(u)->notify_cgroup_empty)
+ UNIT_VTABLE(u)->notify_cgroup_empty(u);
+
+ unit_add_to_gc_queue(u);
+ }
+ }
return 0;
}