fix the asan check
fix the asan check

Summary: as title

Test Plan: ran it

Reviewers: yhchiang, igor

Reviewed By: igor

Subscribers: dhruba, leveldb

Differential Revision: https://reviews.facebook.net/D28311

fengshao0907/rocksdb,hobinyoon/rocksdb,Applied-Duality/rocksdb,vmx/rocksdb,amyvmiwei/rocksdb,Andymic/rocksdb,alihalabyah/rocksdb,geraldoandradee/rocksdb,jalexanderqed/rocksdb,norton/rocksdb,tsheasha/rocksdb,amyvmiwei/rocksdb,tizzybec/rocksdb,ylong/rocksdb,makelivedotnet/rocksdb,ryneli/rocksdb,JohnPJenkins/rocksdb,NickCis/rocksdb,luckywhu/rocksdb,IMCG/RcoksDB,hobinyoon/rocksdb,vmx/rocksdb,OverlordQ/rocksdb,luckywhu/rocksdb,ryneli/rocksdb,rDSN-Projects/rocksdb.replicated,sorphi/rocksdb,wenduo/rocksdb,wlqGit/rocksdb,IMCG/RcoksDB,kaschaeffer/rocksdb,SunguckLee/RocksDB,SunguckLee/RocksDB,geraldoandradee/rocksdb,JoeWoo/rocksdb,Vaisman/rocksdb,Andymic/rocksdb,JoeWoo/rocksdb,JohnPJenkins/rocksdb,dkorolev/rocksdb,SunguckLee/RocksDB,vmx/rocksdb,anagav/rocksdb,JoeWoo/rocksdb,zhangpng/rocksdb,kaschaeffer/rocksdb,caijieming-baidu/rocksdb,alihalabyah/rocksdb,wlqGit/rocksdb,bbiao/rocksdb,makelivedotnet/rocksdb,vashstorm/rocksdb,skunkwerks/rocksdb,vashstorm/rocksdb,bbiao/rocksdb,Andymic/rocksdb,OverlordQ/rocksdb,IMCG/RcoksDB,hobinyoon/rocksdb,IMCG/RcoksDB,ylong/rocksdb,makelivedotnet/rocksdb,vmx/rocksdb,jalexanderqed/rocksdb,sorphi/rocksdb,RyanTech/rocksdb,OverlordQ/rocksdb,virtdb/rocksdb,siddhartharay007/rocksdb,anagav/rocksdb,lgscofield/rocksdb,JoeWoo/rocksdb,fengshao0907/rocksdb,amyvmiwei/rocksdb,temicai/rocksdb,fengshao0907/rocksdb,dkorolev/rocksdb,RyanTech/rocksdb,norton/rocksdb,alihalabyah/rocksdb,hobinyoon/rocksdb,dkorolev/rocksdb,IMCG/RcoksDB,NickCis/rocksdb,biddyweb/rocksdb,sorphi/rocksdb,anagav/rocksdb,norton/rocksdb,wskplho/rocksdb,wat-ze-hex/rocksdb,fengshao0907/rocksdb,tizzybec/rocksdb,rDSN-Projects/rocksdb.replicated,skunkwerks/rocksdb,JohnPJenkins/rocksdb,wat-ze-hex/rocksdb,wskplho/rocksdb,Applied-Duality/rocksdb,JackLian/rocksdb,OverlordQ/rocksdb,wenduo/rocksdb,geraldoandradee/rocksdb,kaschaeffer/rocksdb,temicai/rocksdb,Vaisman/rocksdb,alihalabyah/rocksdb,flabby/rocksdb,wat-ze-hex/rocksdb,rDSN-Projects/rocksdb.replicated,wenduo/rocksdb,flabby/rocksdb,mbarbon/rocksdb,facebook/rocksdb,caijieming-baidu/rocksdb,ylong/rocksdb,wenduo/rocksdb,rDSN-Projects/rocksdb.replicated,zhangpng/rocksdb,vmx/rocksdb,vashstorm/rocksdb,fengshao0907/rocksdb,OverlordQ/rocksdb,jalexanderqed/rocksdb,tsheasha/rocksdb,facebook/rocksdb,amyvmiwei/rocksdb,NickCis/rocksdb,SunguckLee/RocksDB,vashstorm/rocksdb,vashstorm/rocksdb,tizzybec/rocksdb,JohnPJenkins/rocksdb,sorphi/rocksdb,SunguckLee/RocksDB,vmx/rocksdb,virtdb/rocksdb,biddyweb/rocksdb,siddhartharay007/rocksdb,sorphi/rocksdb,biddyweb/rocksdb,mbarbon/rocksdb,biddyweb/rocksdb,wat-ze-hex/rocksdb,Vaisman/rocksdb,siddhartharay007/rocksdb,virtdb/rocksdb,RyanTech/rocksdb,Applied-Duality/rocksdb,temicai/rocksdb,anagav/rocksdb,tsheasha/rocksdb,makelivedotnet/rocksdb,wlqGit/rocksdb,alihalabyah/rocksdb,IMCG/RcoksDB,temicai/rocksdb,bbiao/rocksdb,alihalabyah/rocksdb,wenduo/rocksdb,skunkwerks/rocksdb,Vaisman/rocksdb,luckywhu/rocksdb,Andymic/rocksdb,JackLian/rocksdb,skunkwerks/rocksdb,SunguckLee/RocksDB,ryneli/rocksdb,kaschaeffer/rocksdb,jalexanderqed/rocksdb,SunguckLee/RocksDB,NickCis/rocksdb,virtdb/rocksdb,IMCG/RcoksDB,skunkwerks/rocksdb,skunkwerks/rocksdb,NickCis/rocksdb,JackLian/rocksdb,ryneli/rocksdb,flabby/rocksdb,Andymic/rocksdb,anagav/rocksdb,tsheasha/rocksdb,luckywhu/rocksdb,biddyweb/rocksdb,alihalabyah/rocksdb,zhangpng/rocksdb,virtdb/rocksdb,makelivedotnet/rocksdb,amyvmiwei/rocksdb,jalexanderqed/rocksdb,wenduo/rocksdb,lgscofield/rocksdb,SunguckLee/RocksDB,geraldoandradee/rocksdb,anagav/rocksdb,JackLian/rocksdb,fengshao0907/rocksdb,skunkwerks/rocksdb,norton/rocksdb,sorphi/rocksdb,fengshao0907/rocksdb,Andymic/rocksdb,dkorolev/rocksdb,mbarbon/rocksdb,rDSN-Projects/rocksdb.replicated,caijieming-baidu/rocksdb,Andymic/rocksdb,flabby/rocksdb,geraldoandradee/rocksdb,Andymic/rocksdb,temicai/rocksdb,zhangpng/rocksdb,norton/rocksdb,zhangpng/rocksdb,amyvmiwei/rocksdb,vashstorm/rocksdb,caijieming-baidu/rocksdb,luckywhu/rocksdb,wenduo/rocksdb,tizzybec/rocksdb,temicai/rocksdb,hobinyoon/rocksdb,Applied-Duality/rocksdb,JoeWoo/rocksdb,facebook/rocksdb,JohnPJenkins/rocksdb,RyanTech/rocksdb,facebook/rocksdb,siddhartharay007/rocksdb,flabby/rocksdb,flabby/rocksdb,vashstorm/rocksdb,dkorolev/rocksdb,vmx/rocksdb,norton/rocksdb,Vaisman/rocksdb,hobinyoon/rocksdb,mbarbon/rocksdb,rDSN-Projects/rocksdb.replicated,facebook/rocksdb,rDSN-Projects/rocksdb.replicated,wskplho/rocksdb,kaschaeffer/rocksdb,Vaisman/rocksdb,bbiao/rocksdb,zhangpng/rocksdb,wat-ze-hex/rocksdb,lgscofield/rocksdb,hobinyoon/rocksdb,ylong/rocksdb,anagav/rocksdb,bbiao/rocksdb,bbiao/rocksdb,lgscofield/rocksdb,Applied-Duality/rocksdb,ylong/rocksdb,JoeWoo/rocksdb,wlqGit/rocksdb,wat-ze-hex/rocksdb,wskplho/rocksdb,ylong/rocksdb,JohnPJenkins/rocksdb,mbarbon/rocksdb,lgscofield/rocksdb,wlqGit/rocksdb,biddyweb/rocksdb,siddhartharay007/rocksdb,NickCis/rocksdb,bbiao/rocksdb,tizzybec/rocksdb,JackLian/rocksdb,caijieming-baidu/rocksdb,makelivedotnet/rocksdb,jalexanderqed/rocksdb,biddyweb/rocksdb,facebook/rocksdb,facebook/rocksdb,wlqGit/rocksdb,siddhartharay007/rocksdb,lgscofield/rocksdb,tsheasha/rocksdb,siddhartharay007/rocksdb,NickCis/rocksdb,tizzybec/rocksdb,Applied-Duality/rocksdb,JoeWoo/rocksdb,jalexanderqed/rocksdb,geraldoandradee/rocksdb,RyanTech/rocksdb,amyvmiwei/rocksdb,vmx/rocksdb,mbarbon/rocksdb,flabby/rocksdb,ryneli/rocksdb,dkorolev/rocksdb,wat-ze-hex/rocksdb,Vaisman/rocksdb,norton/rocksdb,dkorolev/rocksdb,makelivedotnet/rocksdb,kaschaeffer/rocksdb,OverlordQ/rocksdb,bbiao/rocksdb,ryneli/rocksdb,tsheasha/rocksdb,wenduo/rocksdb,JackLian/rocksdb,hobinyoon/rocksdb,norton/rocksdb,zhangpng/rocksdb,luckywhu/rocksdb,ryneli/rocksdb,caijieming-baidu/rocksdb,Applied-Duality/rocksdb,tsheasha/rocksdb,facebook/rocksdb,wat-ze-hex/rocksdb,OverlordQ/rocksdb,sorphi/rocksdb,wskplho/rocksdb,JackLian/rocksdb,mbarbon/rocksdb,tizzybec/rocksdb,tsheasha/rocksdb,RyanTech/rocksdb,wlqGit/rocksdb,ylong/rocksdb,wskplho/rocksdb,RyanTech/rocksdb,virtdb/rocksdb,caijieming-baidu/rocksdb,JohnPJenkins/rocksdb,kaschaeffer/rocksdb,temicai/rocksdb,luckywhu/rocksdb,lgscofield/rocksdb,geraldoandradee/rocksdb,wskplho/rocksdb,virtdb/rocksdb