fix mutex lock issue in gc policy lookup
fix mutex lock issue in gc policy lookup

cuongdo/cockroach,yiixiansheng/cockroach,domluna/cockroach,vivekmenezes/cockroach,iqstack/cockroach,ngaut/cockroach,es-chow/cockroach,cuongdo/cockroach,jess-edwards/cockroach,Abioy/cockroach,abhishekgahlot/cockroach,linearb/cockroach,slavau/cockroach,petermattis/cockroach,fengshao0907/cockroach,linearb/cockroach,cockroachdb/cockroach,iqstack/cockroach,SustainFund/cockroach,Abioy/cockroach,jmank88/cockroach,arjun4084346/cockroach,bg451/cockroach,GokulSrinivas/cockroach,nieyy/cockroach,yiixiansheng/cockroach,nkhuyu/cockroach,loucash/cockroach,glycerine/cockroach,vivekmenezes/cockroach,maxlang/cockroach,freakynit/cockroach,alex/cockroach,arypurnomoz/cockroach,linearb/cockroach,jess-edwards/cockroach,es-chow/cockroach,vaibhavarora/cockroach,marcuswestin/cockroach,Kevin-GuanJian/cockroach,mbonaci/cockroach,petermattis/cockroach,sunya123/cockroach,cockroachdb/cockroach,ngaut/cockroach,Abioy/cockroach,XuWanHong/cockroach-1,nkhuyu/cockroach,sunya123/cockroach,XisiHuang/cockroach,veteranlu/cockroach,petermattis/cockroach,SustainFund/cockroach,jamesgraves/cockroach,fengshao0907/cockroach,glycerine/cockroach,jgautheron/cockroach,jgautheron/cockroach,jess-edwards/cockroach,abhishekgahlot/cockroach,slavau/cockroach,vaibhavarora/cockroach,marcuswestin/cockroach,jgautheron/cockroach,slavau/cockroach,mbertschler/cockroach,freakynit/cockroach,yananzhi/cockroach,Abioy/cockroach,domluna/cockroach,freakynit/cockroach,sunya123/cockroach,alex/cockroach,vivekmenezes/cockroach,c4pt0r/cockroach,alunarbeach/cockroach,hassyma/cockroach,mbonaci/cockroach,nieyy/cockroach,cockroachdb/cockroach,mbonaci/cockroach,alex/cockroach,XuWanHong/cockroach-1,mbonaci/cockroach,freakynit/cockroach,veteranlu/cockroach,alunarbeach/cockroach,chrisseto/cockroach,Abioy/cockroach,freakynit/cockroach,XisiHuang/cockroach,linearb/cockroach,mbonaci/cockroach,maxlang/cockroach,iqstack/cockroach,c4pt0r/cockroach,yananzhi/cockroach,arypurnomoz/cockroach,alex/cockroach,paperstreet/cockroach,c4pt0r/cockroach,glycerine/cockroach,marcuswestin/cockroach,paperstreet/cockroach,yosiat/cockroach,chrisseto/cockroach,hassyma/cockroach,yosiat/cockroach,mbertschler/cockroach,glycerine/cockroach,il9ue/cockroach,bg451/cockroach,jmank88/cockroach,slavau/cockroach,iqstack/cockroach,il9ue/cockroach,loucash/cockroach,il9ue/cockroach,XisiHuang/cockroach,marcuswestin/cockroach,ngaut/cockroach,jgautheron/cockroach,SustainFund/cockroach,Abioy/cockroach,cockroachdb/cockroach,mbertschler/cockroach,sunya123/cockroach,veteranlu/cockroach,vaibhavarora/cockroach,es-chow/cockroach,marcuswestin/cockroach,il9ue/cockroach,vaibhavarora/cockroach,vaibhavarora/cockroach,ngaut/cockroach,arypurnomoz/cockroach,arypurnomoz/cockroach,domluna/cockroach,maxlang/cockroach,paperstreet/cockroach,abhishekgahlot/cockroach,veteranlu/cockroach,briceburg/cockroach,yananzhi/cockroach,es-chow/cockroach,paperstreet/cockroach,sunya123/cockroach,bg451/cockroach,jamesgraves/cockroach,vivekmenezes/cockroach,nkhuyu/cockroach,ajayaa/cockroach,yananzhi/cockroach,cuongdo/cockroach,vivekmenezes/cockroach,bg451/cockroach,nieyy/cockroach,jess-edwards/cockroach,glycerine/cockroach,yiixiansheng/cockroach,jamesgraves/cockroach,marcuswestin/cockroach,maxlang/cockroach,SustainFund/cockroach,loucash/cockroach,jamesgraves/cockroach,abhishekgahlot/cockroach,paperstreet/cockroach,GokulSrinivas/cockroach,briceburg/cockroach,il9ue/cockroach,hassyma/cockroach,alunarbeach/cockroach,arjun4084346/cockroach,yosiat/cockroach,jmank88/cockroach,maxlang/cockroach,nieyy/cockroach,jamesgraves/cockroach,briceburg/cockroach,maxlang/cockroach,petermattis/cockroach,loucash/cockroach,yiixiansheng/cockroach,jmank88/cockroach,arypurnomoz/cockroach,fengshao0907/cockroach,bg451/cockroach,ajayaa/cockroach,briceburg/cockroach,loucash/cockroach,jess-edwards/cockroach,jmank88/cockroach,GokulSrinivas/cockroach,cuongdo/cockroach,nkhuyu/cockroach,c4pt0r/cockroach,arjun4084346/cockroach,vaibhavarora/cockroach,ngaut/cockroach,arjun4084346/cockroach,alunarbeach/cockroach,iqstack/cockroach,glycerine/cockroach,alunarbeach/cockroach,petermattis/cockroach,iqstack/cockroach,arjun4084346/cockroach,cuongdo/cockroach,bg451/cockroach,chrisseto/cockroach,slavau/cockroach,Kevin-GuanJian/cockroach,mbertschler/cockroach,XuWanHong/cockroach-1,SustainFund/cockroach,fengshao0907/cockroach,jamesgraves/cockroach,briceburg/cockroach,es-chow/cockroach,ajayaa/cockroach,veteranlu/cockroach,slavau/cockroach,il9ue/cockroach,nkhuyu/cockroach,yananzhi/cockroach,c4pt0r/cockroach,SustainFund/cockroach,c4pt0r/cockroach,chrisseto/cockroach,vaibhavarora/cockroach,GokulSrinivas/cockroach,nieyy/cockroach,cuongdo/cockroach,domluna/cockroach,alex/cockroach,freakynit/cockroach,veteranlu/cockroach,cockroachdb/cockroach,cuongdo/cockroach,XuWanHong/cockroach-1,sunya123/cockroach,XuWanHong/cockroach-1,paperstreet/cockroach,jess-edwards/cockroach,mbertschler/cockroach,yananzhi/cockroach,jgautheron/cockroach,veteranlu/cockroach,Kevin-GuanJian/cockroach,arjun4084346/cockroach,XisiHuang/cockroach,loucash/cockroach,linearb/cockroach,domluna/cockroach,cuongdo/cockroach,vaibhavarora/cockroach,maxlang/cockroach,il9ue/cockroach,iqstack/cockroach,arjun4084346/cockroach,alex/cockroach,bg451/cockroach,arypurnomoz/cockroach,paperstreet/cockroach,XisiHuang/cockroach,chrisseto/cockroach,arjun4084346/cockroach,nieyy/cockroach,GokulSrinivas/cockroach,petermattis/cockroach,XisiHuang/cockroach,vivekmenezes/cockroach,chrisseto/cockroach,es-chow/cockroach,jamesgraves/cockroach,hassyma/cockroach,Kevin-GuanJian/cockroach,marcuswestin/cockroach,domluna/cockroach,nieyy/cockroach,ajayaa/cockroach,yiixiansheng/cockroach,jgautheron/cockroach,XuWanHong/cockroach-1,ajayaa/cockroach,mbonaci/cockroach,vivekmenezes/cockroach,XuWanHong/cockroach-1,Kevin-GuanJian/cockroach,Kevin-GuanJian/cockroach,glycerine/cockroach,sunya123/cockroach,yosiat/cockroach,hassyma/cockroach,glycerine/cockroach,fengshao0907/cockroach,il9ue/cockroach,cockroachdb/cockroach,mbertschler/cockroach,paperstreet/cockroach,fengshao0907/cockroach,veteranlu/cockroach,mbertschler/cockroach,jmank88/cockroach,domluna/cockroach,hassyma/cockroach,yiixiansheng/cockroach,vivekmenezes/cockroach,petermattis/cockroach,alunarbeach/cockroach,Kevin-GuanJian/cockroach,nkhuyu/cockroach,petermattis/cockroach,jmank88/cockroach,ajayaa/cockroach,ngaut/cockroach,ngaut/cockroach,es-chow/cockroach,yananzhi/cockroach,yosiat/cockroach,abhishekgahlot/cockroach,abhishekgahlot/cockroach,linearb/cockroach,sunya123/cockroach,briceburg/cockroach,maxlang/cockroach,GokulSrinivas/cockroach,linearb/cockroach,cockroachdb/cockroach,nieyy/cockroach,marcuswestin/cockroach,yosiat/cockroach,jess-edwards/cockroach,cockroachdb/cockroach