readahead: normalize logging

[elogind.git] / src / unit.c

diff --git a/src/unit.c b/src/unit.c
index d28a0a8cf7637b461ebbe8334bc6f82a22e7ce46..5a451c57c2a038c1cc297c7d3658f96527ab206e 100644 (file)
--- a/src/unit.c
+++ b/src/unit.c
@@ -440,6 +440,7 @@ static void merge_dependencies(Unit *u, Unit *other, UnitDependency d) {
         assert(other);
         assert(d < _UNIT_DEPENDENCY_MAX);
 
+        /* Fix backwards pointers */
         SET_FOREACH(back, other->meta.dependencies[d], i) {
                 UnitDependency k;
 
@@ -725,13 +726,19 @@ int unit_load_fragment_and_dropin_optional(Unit *u) {
         return 0;
 }
 
-static int unit_add_one_default_dependency(Unit *u, Unit *target) {
+int unit_add_default_target_dependency(Unit *u, Unit *target) {
         assert(u);
         assert(target);
 
         if (target->meta.type != UNIT_TARGET)
                 return 0;
 
+        /* Only add the dependency if boths units are loaded, so that
+         * that loop check below is reliable */
+        if (u->meta.load_state != UNIT_LOADED ||
+            target->meta.load_state != UNIT_LOADED)
+                return 0;
+
         /* Don't create loops */
         if (set_get(target->meta.dependencies[UNIT_BEFORE], u))
                 return 0;
@@ -740,22 +747,22 @@ static int unit_add_one_default_dependency(Unit *u, Unit *target) {
 }
 
 static int unit_add_default_dependencies(Unit *u) {
-        Unit *other;
+        Unit *target;
         Iterator i;
         int r;
 
         assert(u);
 
-        SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY], i)
-                if ((r = unit_add_one_default_dependency(u, other)) < 0)
+        SET_FOREACH(target, u->meta.dependencies[UNIT_REQUIRED_BY], i)
+                if ((r = unit_add_default_target_dependency(u, target)) < 0)
                         return r;
 
-        SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
-                if ((r = unit_add_one_default_dependency(u, other)) < 0)
+        SET_FOREACH(target, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
+                if ((r = unit_add_default_target_dependency(u, target)) < 0)
                         return r;
 
-        SET_FOREACH(other, u->meta.dependencies[UNIT_WANTED_BY], i)
-                if ((r = unit_add_one_default_dependency(u, other)) < 0)
+        SET_FOREACH(target, u->meta.dependencies[UNIT_WANTED_BY], i)
+                if ((r = unit_add_default_target_dependency(u, target)) < 0)
                         return r;
 
         return 0;