From cf180d91dccdbed6b4f2d9c1761271a1506e7f4c Mon Sep 17 00:00:00 2001
From: Denys Smirnov <denis.smirnov.91@gmail.com>
Date: Mon, 9 Jan 2017 17:53:50 +0200
Subject: [PATCH] send: fix diff int overflow

---
 send.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/send.go b/send.go
index e24ae4e..be6b70b 100644
--- a/send.go
+++ b/send.go
@@ -225,12 +225,12 @@ func findGoodParent(mnt *os.File, rootID objectID, cloneSrc []objectID) (objectI
 		if err != nil {
 			return 0, err
 		}
-		diff := parent2.CTransID - parent.CTransID
+		diff := int64(parent2.CTransID - parent.CTransID)
 		if diff < 0 {
 			diff = -diff
 		}
-		if diff < bestDiff {
-			bestParent, bestDiff = parent2, diff
+		if uint64(diff) < bestDiff {
+			bestParent, bestDiff = parent2, uint64(diff)
 		}
 	}
 	if bestParent == nil {