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-rw-r--r--src/core/job.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/core/job.c b/src/core/job.c
index 6a03d17aa8..2bafbc1589 100644
--- a/src/core/job.c
+++ b/src/core/job.c
@@ -34,6 +34,9 @@
#include "load-dropin.h"
#include "log.h"
#include "dbus-job.h"
+#include "special.h"
+#include "sync.h"
+#include "virt.h"
JobBusClient* job_bus_client_new(DBusConnection *connection, const char *name) {
JobBusClient *cl;
@@ -1061,6 +1064,29 @@ int job_coldplug(Job *j) {
return 0;
}
+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 (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET))
+ return;
+
+ if (j->type != JOB_START)
+ return;
+
+ if (detect_container(NULL) > 0)
+ return;
+
+ asynchronous_sync();
+}
+
static const char* const job_state_table[_JOB_STATE_MAX] = {
[JOB_WAITING] = "waiting",
[JOB_RUNNING] = "running"