2 files changed, 4 insertions, 4 deletions
diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp b/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp
index 8792ae37f9c..8371d6e312a 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp
@@ -343,7 +343,7 @@ WiredTigerKVEngine::WiredTigerKVEngine(const std::string& canonicalName,
         }
     }
 
-    _previousCheckedDropsQueued = _clockSource->now();
+    _previousCheckedDropsQueued.store(_clockSource->now().toMillisSinceEpoch());
 
     std::stringstream ss;
     ss << "create,";
@@ -1726,7 +1726,7 @@ std::list<WiredTigerCachedCursor> WiredTigerKVEngine::filterCursorsWithQueuedDro
 
 bool WiredTigerKVEngine::haveDropsQueued() const {
     Date_t now = _clockSource->now();
-    Milliseconds delta = now - _previousCheckedDropsQueued;
+    Milliseconds delta = now - Date_t::fromMillisSinceEpoch(_previousCheckedDropsQueued.load());
 
     if (!_readOnly && _sizeStorerSyncTracker.intervalHasElapsed()) {
         _sizeStorerSyncTracker.resetLastTime();
@@ -1737,7 +1737,7 @@ bool WiredTigerKVEngine::haveDropsQueued() const {
     if (delta < Milliseconds(1000))
         return false;
 
-    _previousCheckedDropsQueued = now;
+    _previousCheckedDropsQueued.store(now.toMillisSinceEpoch());
 
     // Don't wait for the mutex: if we can't get it, report that no drops are queued.
     stdx::unique_lock<Latch> lk(_identToDropMutex, stdx::defer_lock);
diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.h b/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.h
index 9b43d48ee83..cede3f05788 100644
--- a/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.h
+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.h
@@ -464,7 +464,7 @@ private:
     mutable Mutex _identToDropMutex = MONGO_MAKE_LATCH("WiredTigerKVEngine::_identToDropMutex");
     std::list<IdentToDrop> _identToDrop;
 
-    mutable Date_t _previousCheckedDropsQueued;
+    mutable AtomicWord<long long> _previousCheckedDropsQueued;
 
     std::unique_ptr<WiredTigerSession> _backupSession;
     WiredTigerBackup _wtBackup;