From 138c7685424ef1a1014fc238700d1f0ef0b2b0ad Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Tue, 31 May 2016 20:34:27 +0200
Subject: [PATCH] Optimization: don't check the mempool at all if no mempool
 req ever

(cherry picked from commit bitcoin/bitcoin@e9b4780b292122fd727426471f025ec3d3eb7b08)
---
 src/main.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.cpp b/src/main.cpp
index 7a8f312a1..c9c9896e7 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -6145,7 +6145,7 @@ void static ProcessGetData(CNode* pfrom, const Consensus::Params& consensusParam
                 if (mi != mapRelay.end() && !IsExpiringSoonTx(*mi->second, currentHeight + 1)) {
                     pfrom->PushMessage("tx", *mi->second);
                     push = true;
-                } else {
+                } else if (pfrom->timeLastMempoolReq) {
                     auto txinfo = mempool.info(inv.hash);
                     // To protect privacy, do not answer getdata using the mempool when
                     // that TX couldn't have been INVed in reply to a MEMPOOL request.