unit: replace StopRetroactively= by BindTo= dependencies

The property StopRetroactively= needs to be per-dependency, not
per-unit, in order to properly express dependencies between .mount units
and its .device and fsck .service units. If the .device unit is
unplugged the mount should go away, but if the fsck process terminates
the .mount should stay.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/unit.h b/src/unit.h
index 8b6b58e53b..ff11511898 100644
--- a/src/unit.h
+++ b/src/unit.h
@@ -102,11 +102,13 @@ enum UnitDependency {
         UNIT_REQUISITE,
         UNIT_REQUISITE_OVERRIDABLE,
         UNIT_WANTS,
+        UNIT_BIND_TO,
 
         /* Inverse of the above */
         UNIT_REQUIRED_BY,             /* inverse of 'requires' and 'requisite' is 'required_by' */
         UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'requires_overridable' and 'requisite_overridable' is 'soft_required_by' */
         UNIT_WANTED_BY,               /* inverse of 'wants' */
+        UNIT_BOUND_BY,                /* inverse of 'bind_to' */
 
         /* Negative dependencies */
         UNIT_CONFLICTS,               /* inverse of 'conflicts' is 'conflicted_by' */
@@ -191,9 +193,6 @@ struct Meta {
         /* Error code when we didn't manage to load the unit (negative) */
         int load_error;
 
-        /* If some required dep goes down, pull down ourselves, too */
-        bool stop_retroactively;
-
         /* Garbage collect us we nobody wants or requires us anymore */
         bool stop_when_unneeded;