+void job_shutdown_magic(Job *j) {
+ assert(j);
+
+ /* The shutdown target gets some special treatment here: we
+ * tell the kernel to begin with flushing its disk caches, to
+ * optimize shutdown time a bit. Ideally we wouldn't hardcode
+ * this magic into PID 1. However all other processes aren't
+ * options either since they'd exit much sooner than PID 1 and
+ * asynchronous sync() would cause their exit to be
+ * delayed. */
+
+ if (j->type != JOB_START)
+ return;
+
+ if (j->unit->manager->running_as != SYSTEMD_SYSTEM)
+ return;
+
+ if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET))
+ return;
+
+ if (detect_container(NULL) > 0)
+ return;
+
+ asynchronous_sync();
+}
+