storage/backend: avoid creating new bolt.tx during a batchTx
storage/backend: avoid creating new bolt.tx during a batchTx

mickep76/etcd,sinsharat/etcd,wantonsolutions/dinv-etcd,chipironcin/etcd,fanminshi/etcd,tamird/etcd,siddontang/etcd,etcd-io/etcd,ajityagaty/etcd,sofuture/etcd,whuwxl/etcd,StorReduce/etcd,armstrongli/etcd,sayden/etcd,heyitsanthony/etcd,xiang90/etcd,siddontang/etcd,hongchaodeng/etcd,ajityagaty/etcd,bluebreezecf/etcd,vimalk78/etcd,bdarnell/etcd,mqliang/etcd,dannysauer/etcd,jonboulle/etcd,qqsun8819/etcd,handsomesun/etcd,glycerine/etcd,xiang90/etcd,gyuho/etcd,xychu/etcd,cockroachdb/etcd,glevand/coreos--etcd,cchamplin/etcd,plasticbox/etcd,bdarnell/etcd,mickep76/etcd,achanda/etcd,luxas/etcd,rnaveiras/etcd,heyitsanthony/etcd,zaphod-concur/etcd,glevand/coreos--etcd,nekto0n/etcd,mkumatag/etcd,lorneli/etcd,a-robinson/etcd,fanminshi/etcd,mqliang/etcd,insequent/etcd,lorneli/etcd,rchicoli/etcd,dnaeon/etcd,oscarrr110/etcd,Timer/etcd,wantonsolutions/dinv-etcd,westhood/etcd,li-ang/etcd,plasticbox/etcd,shawnps/etcd,purpleidea/etcd,bluebreezecf/etcd,akauppi/etcd,rnaveiras/etcd,etcd-io/etcd,Timer/etcd,cockroachdb/etcd,whuwxl/etcd,joshix/etcd,rnaveiras/etcd,yudai/etcd,shawnps/etcd,rchicoli/etcd,raoofm/etcd,achanda/etcd,glycerine/etcd,tguangch/etcd,ravigadde/etcd,linuxcer/etcd,akauppi/etcd,cchamplin/etcd,fasaxc/etcd,etcd-io/etcd,CrazyJvm/etcd,sofuture/etcd,wantonsolutions/dinv-etcd,ktateish/etcd,handsomesun/etcd,ajityagaty/etcd,YuleiXiao/etcd,westhood/etcd,chipironcin/etcd,insequent/etcd,mqliang/etcd,nekto0n/etcd,luxas/etcd,sinsharat/etcd,linuxcer/etcd,xychu/etcd,StorReduce/etcd,sayden/etcd,hongchaodeng/etcd,li-ang/etcd,mkumatag/etcd,oscarrr110/etcd,gyuho/etcd,visheshnp/etcd,fasaxc/etcd,dannysauer/etcd,HideoYamauchi/etcd,CrazyJvm/etcd,tguangch/etcd,jlamillan/etcd,endocode/etcd,ravigadde/etcd,lumjjb/etcd,coreos/etcd,endocode/etcd,OyTao/etcd_learning,tamird/etcd,jonboulle/etcd,visheshnp/etcd,jlamillan/etcd,HideoYamauchi/etcd,ktateish/etcd,mkumatag/etcd,lumjjb/etcd,raoofm/etcd,zaphod-concur/etcd,dnaeon/etcd,coreos/etcd,sebrandon1/etcd,swingbach/etcd,fasaxc/etcd,swingbach/etcd,yudai/etcd,OyTao/etcd_learning,joshix/etcd,a-robinson/etcd,vimalk78/etcd,purpleidea/etcd,qqsun8819/etcd,YuleiXiao/etcd,armstrongli/etcd,sebrandon1/etcd