From bf4a48ccb356cf5ed205a30201e751218da7cfb0 Mon Sep 17 00:00:00 2001
From: Haobo Xu <haobo@fb.com>
Date: Fri, 20 Dec 2013 18:14:17 -0800
Subject: [PATCH] [RocksDB] [Performance Branch] Revert previous patch.

Summary: The previous patch is wrong. rep_.resize(kHeader) just resets the header portion to zero, and should not cause a re-allocation if g++ does it right. I will go ahead and revert it.

Test Plan: make check

Reviewers: dhruba, sdong

CC: leveldb

Differential Revision: https://reviews.facebook.net/D14793
---
 db/write_batch.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/db/write_batch.cc b/db/write_batch.cc
index fa01e82db..c04930bbf 100644
--- a/db/write_batch.cc
+++ b/db/write_batch.cc
@@ -58,6 +58,7 @@ bool WriteBatch::Handler::Continue() {
 
 void WriteBatch::Clear() {
   rep_.clear();
+  rep_.resize(kHeader);
 }
 
 int WriteBatch::Count() const {