From f8fb4808177416745b65d174b43126dba4d422e5 Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Fri, 30 Oct 2015 01:16:52 +1100
Subject: [PATCH] Avoid copying mutex in piece

---
 client.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client.go b/client.go
index 0385b4fa..fea00be6 100644
--- a/client.go
+++ b/client.go
@@ -1781,7 +1781,8 @@ func (t *torrent) needData() bool {
 	if len(t.urgent) != 0 {
 		return true
 	}
-	for _, p := range t.Pieces {
+	for i := range t.Pieces {
+		p := &t.Pieces[i]
 		if p.Priority != PiecePriorityNone {
 			return true
 		}