Store removal status separate from dirty

Having removal status stored in the dirty status resulted in removal
status being forgotten when a service was marked as dirty, for instance
when a dependency was updated. This side effect of marke_dirty seems a bit
unexpected and instead of adding exceptions to the logic for when marking
a service dirty - let's separate the two things (dirty and removed) from each
other.

Signed-off-by: Jacques de Laval <Jacques.De.Laval@westermo.com>

src/svc.c

@@ -458,7 +458,7 @@ void svc_mark_dynamic(void)
 		if (svc->protect)
 			continue;
 
-		*((int *)&svc->dirty) = -1;
+		*((int *)&svc->removed) = 1;
 	}
 }
 
@@ -472,6 +472,11 @@ void svc_mark_clean(svc_t *svc)
 	*((int *)&svc->dirty) = 0;
 }
 
+void svc_enable(svc_t *svc)
+{
+	*((int *)&svc->removed) = 0;
+}
+
 /**
  * svc_clean_dynamic - Stop and cleanup stale services removed from /etc/finit.d
  * @cb: Callback to run for each stale service
@@ -484,7 +489,7 @@ void svc_clean_dynamic(void (*cb)(svc_t *))
 	svc_t *svc, *iter = NULL;
 
 	for (svc = svc_iterator(&iter, 1); svc; svc = svc_iterator(&iter, 0)) {
-		if (svc->dirty == -1 && cb)
+		if (svc->removed && cb)
 			cb(svc);
 	}
 }