From 0e120dc4700273c23d10ef64f25663fa21b84e9b Mon Sep 17 00:00:00 2001
From: Josh Bleecher Snyder <josharian@gmail.com>
Date: Thu, 22 Dec 2016 17:20:50 -0800
Subject: Precalculate size of pending pgids in freelist.copyall

This recovers the slight alloc regression in #636.
---
 freelist.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'freelist.go')

diff --git a/freelist.go b/freelist.go
index e07bf0a..de59aaa 100644
--- a/freelist.go
+++ b/freelist.go
@@ -49,7 +49,7 @@ func (f *freelist) pending_count() int {
 // copyall copies into dst a list of all free ids and all pending ids in one sorted list.
 // f.count returns the minimum length required for dst.
 func (f *freelist) copyall(dst []pgid) {
-	m := make(pgids, 0, len(f.pending)) // len(f.pending) undercounts, but it is a start
+	m := make(pgids, 0, f.pending_count())
 	for _, list := range f.pending {
 		m = append(m, list...)
 	}
-- 
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