X-Git-Url: http://git.tuebingen.mpg.de/?p=dss.git;a=blobdiff_plain;f=dss.c;h=c64156188bc753f7ee264f7434db1e254bbbc8f2;hp=0ad7a35989a75e893fe40e30d84d1ff18f4d94ff;hb=31638f52b0fe420f4881dca4afdecf7132d1ab91;hpb=8daf8f3836e745ba07f1aa01252279588574c95a

diff --git a/dss.c b/dss.c
index 0ad7a35..c641561 100644
--- a/dss.c
+++ b/dss.c
@@ -531,17 +531,25 @@ static struct snapshot *find_outdated_snapshot(struct snapshot_list *sl)
 
 static struct snapshot *find_oldest_removable_snapshot(struct snapshot_list *sl)
 {
-	int i;
-	struct snapshot *s;
+	int i, num_complete;
+	struct snapshot *s, *ref = NULL;
+
+	num_complete = num_complete_snapshots(sl);
+	if (num_complete <= conf.min_complete_arg)
+		return NULL;
 	FOR_EACH_SNAPSHOT(s, i, sl) {
 		if (snapshot_is_being_created(s))
 			continue;
-		if (is_reference_snapshot(s))
+		if (is_reference_snapshot(s)) { /* avoid this one */
+			ref = s;
 			continue;
+		}
 		DSS_INFO_LOG(("oldest removable snapshot: %s\n", s->name));
 		return s;
 	}
-	return NULL;
+	assert(ref);
+	DSS_WARNING_LOG(("removing reference snapshot %s\n", ref->name));
+	return ref;
 }
 
 static int rename_incomplete_snapshot(int64_t start)
@@ -1512,6 +1520,7 @@ int main(int argc, char **argv)
 	if (ret < 0)
 		goto out;
 	ret = call_command_handler();
+	signal_shutdown();
 out:
 	if (ret < 0)
 		DSS_EMERG_LOG(("%s\n", dss_strerror(-ret)));