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-rw-r--r--migration.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/migration.c b/migration.c
index 41c3c24e09..6764d3a44c 100644
--- a/migration.c
+++ b/migration.c
@@ -398,6 +398,18 @@ static MigrationState *migrate_init(Monitor *mon, int detach, int blk, int inc)
return s;
}
+static GSList *migration_blockers;
+
+void migrate_add_blocker(Error *reason)
+{
+ migration_blockers = g_slist_prepend(migration_blockers, reason);
+}
+
+void migrate_del_blocker(Error *reason)
+{
+ migration_blockers = g_slist_remove(migration_blockers, reason);
+}
+
int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
MigrationState *s = migrate_get_current();
@@ -417,6 +429,12 @@ int do_migrate(Monitor *mon, const QDict *qdict, QObject **ret_data)
return -1;
}
+ if (migration_blockers) {
+ Error *err = migration_blockers->data;
+ qerror_report_err(err);
+ return -1;
+ }
+
s = migrate_init(mon, detach, blk, inc);
if (strstart(uri, "tcp:", &p)) {