From 5daca12b610543589f767eefd787fa159dd01636 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Fri, 23 Sep 2016 10:16:10 -0400
Subject: [PATCH] os/bluestore: drop unreferenced spanning blobs

Otherwise we can "leak" these and keep them around indefinitely.

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/bluestore/BlueStore.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 069f8a0ce10..f95acfef13c 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -7420,6 +7420,12 @@ void BlueStore::_wctx_finish(
       }
     }
     delete &lo;
+    if (b->id >= 0 && b->ref_map.empty()) {
+      dout(20) << __func__ << "  spanning_blob_map removing empty " << *b
+	       << dendl;
+      auto it = o->extent_map.spanning_blob_map.iterator_to(*b);
+      o->extent_map.spanning_blob_map.erase(it);
+    }
   }
 }
 
-- 
2.39.5