crush: clear bucket class ids when removed

Refs: http://tracker.ceph.com/issues/18943

Signed-off-by: Loic Dachary <ldachary@redhat.com>

diff --git a/src/crush/CrushWrapper.cc b/src/crush/CrushWrapper.cc
index 45c41596016d4dce62533bbd63cfa5f78a8075ba..35c320f2757dd1959da94e4a3c2ecd3aa1be0d53 100644 (file)
--- a/src/crush/CrushWrapper.cc
+++ b/src/crush/CrushWrapper.cc
@@ -248,6 +248,8 @@ bool CrushWrapper::_maybe_remove_last_instance(CephContext *cct, int item, bool
     crush_bucket *t = get_bucket(item);
     ldout(cct, 5) << "_maybe_remove_last_instance removing bucket " << item << dendl;
     crush_remove_bucket(crush, t);
+    if (class_bucket.count(item) != 0)
+      class_bucket.erase(item);
   }
   if ((item >= 0 || !unlink_only) && name_map.count(item)) {
     ldout(cct, 5) << "_maybe_remove_last_instance removing name for item " << item << dendl;