From 3bca0c7d87c96206bd4abd5d33aad5851d9bd393 Mon Sep 17 00:00:00 2001
From: Josh Bleecher Snyder <josharian@gmail.com>
Date: Wed, 9 Apr 2014 17:40:05 -0700
Subject: [PATCH] imports: use chan struct{} for disk semaphore

Update golang/go#7747

LGTM=bradfitz
R=bradfitz, iant
CC=golang-codereviews
https://golang.org/cl/86280043
---
 imports/fix.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/imports/fix.go b/imports/fix.go
index 8e6921b3..dd3d8170 100644
--- a/imports/fix.go
+++ b/imports/fix.go
@@ -175,9 +175,9 @@ var pkgIndex struct {
 }
 
 // gate is a semaphore for limiting concurrency.
-type gate chan bool
+type gate chan struct{}
 
-func (g gate) enter() { g <- true }
+func (g gate) enter() { g <- struct{}{} }
 func (g gate) leave() { <-g }
 
 // fsgate protects the OS & filesystem from too much concurrency.