From 1c2c6cc1d8dce94a5db67dd0fd8c15214642f0ca Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Tue, 31 May 2016 15:26:14 -0400
Subject: [PATCH] os/bluestore: fsck: check for dup overlay keys

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/bluestore/BlueStore.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index ee7d208b4dc7c..2f1092ee6182a 100644
--- 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) {
-- 
2.39.5