crush: get_item_weight must not fail on root

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

diff --git a/src/crush/CrushWrapper.cc b/src/crush/CrushWrapper.cc
index 3be8a11c237770aad4d40b8f083dfaa1c3c7a225..a5c744847ee5f8344840d9a2f3e2e9a4356e9890 100644 (file)
--- a/src/crush/CrushWrapper.cc
+++ b/src/crush/CrushWrapper.cc
@@ -818,6 +818,8 @@ int CrushWrapper::get_item_weight(int id) const
     crush_bucket *b = crush->buckets[bidx];
     if (b == NULL)
       continue;
+    if (b->id == id)
+      return b->weight;
     for (unsigned i = 0; i < b->size; i++)
       if (b->items[i] == id)
        return crush_get_bucket_item_weight(b, i);