From: Shenghou Ma <minux.ma@gmail.com>
Date: Mon, 22 Oct 2012 18:33:51 +0000 (+0800)
Subject: runtime, runtime/race: add missing if(raceenabled), update package docs of pkg race
X-Git-Tag: go1.1rc2~2067
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=7c44edf4250d8e1ad0ed37bf4ae27ec7f6c07ab6;p=gostls13.git

runtime, runtime/race: add missing if(raceenabled), update package docs of pkg race

R=dvyukov
CC=golang-dev
https://golang.org/cl/6733058
---

diff --git a/src/pkg/runtime/malloc.goc b/src/pkg/runtime/malloc.goc
index eaae52a641..f8aa1c949e 100644
--- a/src/pkg/runtime/malloc.goc
+++ b/src/pkg/runtime/malloc.goc
@@ -715,7 +715,8 @@ runtime·cnew(Type *typ)
 	uint32 flag;
 	void *ret;
 
-	m->racepc = runtime·getcallerpc(&typ);
+	if(raceenabled)
+		m->racepc = runtime·getcallerpc(&typ);
 	flag = typ->kind&KindNoPointers ? FlagNoPointers : 0;
 	ret = runtime·mallocgc(typ->size, flag, 1, 1);
 
diff --git a/src/pkg/runtime/race/race.go b/src/pkg/runtime/race/race.go
index ddeff5de76..f3a7be50c6 100644
--- a/src/pkg/runtime/race/race.go
+++ b/src/pkg/runtime/race/race.go
@@ -4,7 +4,7 @@
 
 // +build race,linux,amd64 race,darwin,amd64
 
-// Data race detection.
+// Package race provides low-level facilities for data race detection.
 package race
 
 /*