From d398dbdfc38838b63e39cd8ee2c9d30a09b5989f Mon Sep 17 00:00:00 2001
From: Austin Clements <austin@google.com>
Date: Thu, 9 Aug 2018 15:25:10 -0400
Subject: runtime: eliminate gcBlackenPromptly mode

Now that there is no mark 2 phase, gcBlackenPromptly is no longer
used.

Updates #26903. This is a follow-up to eliminating mark 2.

Change-Id: Ib9c534f21b36b8416fcf3cab667f186167b827f8
Reviewed-on: https://go-review.googlesource.com/c/134319
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rick Hudson <rlh@golang.org>
---
 src/runtime/stack.go | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'src/runtime/stack.go')

diff --git a/src/runtime/stack.go b/src/runtime/stack.go
index d56b864c5e..fd9aafd15b 100644
--- a/src/runtime/stack.go
+++ b/src/runtime/stack.go
@@ -981,9 +981,6 @@ func newstack() {
 				// system stack.
 				gcw := &gp.m.p.ptr().gcw
 				scanstack(gp, gcw)
-				if gcBlackenPromptly {
-					gcw.dispose()
-				}
 				gp.gcscandone = true
 			}
 			gp.preemptscan = false
-- 
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