From 98400ab9c7f41194f763e41c7e1bbb1fb5099614 Mon Sep 17 00:00:00 2001
From: Matt Joiner <anacrolix@gmail.com>
Date: Tue, 2 Dec 2014 18:43:05 -0600
Subject: [PATCH] Harmless shortcut initing peer pieces when we have the
 torrent info

---
 client.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/client.go b/client.go
index cddb442f..7b3a8967 100644
--- a/client.go
+++ b/client.go
@@ -920,8 +920,14 @@ func (t *torrent) initRequestOrdering(c *connection) {
 }
 
 func (me *Client) peerGotPiece(t *torrent, c *connection, piece int) {
-	for piece >= len(c.PeerPieces) {
-		c.PeerPieces = append(c.PeerPieces, false)
+	if t.haveInfo() {
+		if c.PeerPieces == nil {
+			c.PeerPieces = make([]bool, t.NumPieces())
+		}
+	} else {
+		for piece >= len(c.PeerPieces) {
+			c.PeerPieces = append(c.PeerPieces, false)
+		}
 	}
 	c.PeerPieces[piece] = true
 	if t.wantPiece(piece) {
-- 
2.48.1