os/bluestore: fsck: check for dup overlay keys

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index ee7d208b4dc7c2be6bf777f9b1d6fe5540fff09c..2f1092ee6182a2d8b3a88abe709ec4af9893c963 100644 (file)
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -2514,6 +2514,10 @@ int BlueStore::fsck()
          string key;
          bufferlist val;
          get_overlay_key(o->onode.nid, v.second.key, &key);
+         if (overlay_keys.count(key)) {
+           derr << " " << oid << " dup overlay key " << key << dendl;
+           ++errors;
+         }
          overlay_keys.insert(key);
          int r = db->get(PREFIX_OVERLAY, key, &val);
          if (r < 0) {