Graphdriver/btrfs: Avoid using single d.Get()
Graphdriver/btrfs: Avoid using single d.Get()

For btrfs driver, in d.Create(), Get() of parentDir is called but not followed
by Put().

If we apply SElinux mount label, we need to mount btrfs subvolumes in d.Get(),
without a Put() would end up with a later Remove() failure on
"Device resourse is busy".

This calls the subvolume helper function directly in d.Create().

Signed-off-by: Liu Bo <53bcb7ec3fc64af6813d2ef7ceefe23b63265886@oracle.com>

gao-feng/docker,LuisBosquez/docker.github.io,yummypeng/docker,unclejack/docker,BenHall/docker,achanda/docker,yosifkit/docker,ajaymdesai/docker,mtesselH/docker,phiroict/docker,lixiaobing10051267/docker,dims/docker,crosbymichael/docker,sanscontext/docker.github.io,JMesser81/docker,nalind/docker,justyntemme/docker,bdwill/docker.github.io,ripcurld0/moby,justincormack/docker,aditirajagopal/docker,lixiaobing1/docker,miminar/docker,hypriot/docker,rkazak/docker,gnailuy/docker,miminar/docker,konstruktoid/docker-upstream,docker/docker.github.io,eskaaren/docker,ckeyer/docker,mathewkoshy493/docker,laijs/docker,sanjeo/docker,mixja/docker,runcom/docker,medallia/docker,jameszhan/docker,akira-baruah/docker,denverdino/docker.github.io,portworx/docker,alexisbellido/docker.github.io,icaoweiwei/docker,cyli/docker,tkopczynski/docker,sheimi/docker,tonistiigi/docker,dnephin/docker,joaofnfernandes/docker.github.io,dongjoon-hyun/docker,ffoysal/docker,estesp/docker,moul/docker,prertik/docker,miminar/docker,HackToday/docker,Morsicus/docker,Mashimiao/docker,tophj-ibm/moby,paralin/docker,TheBigBear/docker,kojiromike/docker,naveed-jamil-tenpearls/moby,jvanz/docker,kerneltime/docker,LuisBosquez/docker.github.io,kunalkushwaha/docker,JMesser81/docker,sean-jc/docker,srust/docker,tkopczynski/docker,johnstep/docker.github.io,gjaskiewicz/moby,JMesser81/docker,anortef/docker,isubuz/docker,akira-baruah/docker,joeuo/docker.github.io,stainboy/docker,konstruktoid/docker-1,bearstech/moby,kimh/docker,jwhonce/docker,pyotr777/docker,rillig/docker.github.io,thaJeztah/docker,charleswhchan/docker,thaJeztah/docker.github.io,moul/docker,cpuguy83/docker,Morsicus/docker,supasate/docker,danix800/docker.github.io,willmtemple/docker,jhorwit2/docker,eskaaren/docker,Ramzec/docker,jimjag/docker,sheimi/docker,PatrickLang/moby,KarthikNayak/docker,DoraALin/docker,justyntemme/docker,mathewkoshy493/docker,YuPengZTE/docker,runcom/docker,dims/docker,fcrisciani/docker,troy0820/docker.github.io,Mokolea/docker,rhatdan/storage,denverdino/denverdino.github.io,Mokolea/docker,TrumanLing/docker,fcrisciani/docker,joeuo/docker.github.io,TheBigBear/docker,isubuz/docker,mgoelzer/docker,bfirsh/docker,imkin/moby,tmp6154/docker,isubuz/docker,rhardih/docker,shhsu/docker,cmehay/docker-1,alexisbellido/docker.github.io,portworx/docker,konstruktoid/docker-upstream,aditirajagopal/docker,fsoppelsa/docker,msabansal/docker,Shopify/docker,13W/docker,prertik/docker,noxiouz/docker,qudongfang/docker,DoraALin/docker,YujiOshima/docker,anujbahuguna/docker,jwhonce/docker,charleswhchan/docker,HuKeping/docker,haveatry/docker,jongiddy/docker,tophj-ibm/docker,aduermael/docker.github.io,cyli/docker,zhangjianfnst/docker,sdurrheimer/docker,JimGalasyn/docker.github.io,mtrmac/docker,mixja/docker,nawawi/docker,wenchma/docker,Mashimiao/docker,yasiramin10p/moby,yp-engineering/docker,lixiaobing10051267/docker,izarov/docker,tpounds/docker,hypriot/docker,mtanlee/docker,bdwill/docker.github.io,tagomoris/docker,endophage/docker,dmcgowan/docker,xiaods/docker,erikh/docker,ZJU-SEL/docker,docker/docker.github.io,q384566678/docker,tpounds/docker,denverdino/denverdino.github.io,vdemeester/docker,madhanrm/docker,projectatomic/docker,ColinHebert/docker,nawawi/docker,cyphar/docker,13W/docker,scotttlin/docker,allencloud/docker,bluebreezecf/docker,anortef/docker,docker/docker.github.io,jvanz/docker,mtrmac/docker,achanda/docker,rremer/moby,q384566678/docker,bfirsh/docker,sdurrheimer/docker,bonczj/moby-json-file-logger,shin-/docker.github.io,tkopczynski/docker,yp-engineering/docker,yasiramin10p/moby,noxiouz/docker,bonczj/moby-json-file-logger,coreos/docker,gao-feng/docker,cpuguy83/docker,jvanz/docker,sanscontext/docker.github.io,BSWANG/denverdino.github.io,rremer/moby,gdevillele/docker.github.io,kencochrane/docker,charleszheng44/moby,brahmaroutu/docker,shin-/docker.github.io,mahak/docker,gnailuy/docker,errordeveloper/docker,kencochrane/docker,rancher/docker,Mokolea/docker,sallyom/docker,diogomonica/docker,troy0820/docker.github.io,bluebreezecf/docker,scotttlin/docker,twaugh/docker,BenHall/docker,noxiouz/docker,rhatdan/storage,darrenstahlmsft/docker,denverdino/docker.github.io,mtanlee/docker,SvenDowideit/docker,cyli/docker,denverdino/denverdino.github.io,Shopify/docker,jameszhan/docker,shubheksha/docker.github.io,trebonian/docker,BSWANG/denverdino.github.io,allencloud/docker,moby/moby,prertik/docker,willmtemple/docker,londoncalling/docker.github.io,dperny/docker,rancher/docker,scotttlin/docker,Syntaxide/docker,PatrickLang/moby,mkumatag/docker,phiroict/docker,pecameron/docker,jecarey/docker,estesp/docker,POLJM242/docker,jlhawn/docker,yosifkit/docker,stevvooe/docker,shubheksha/docker.github.io,hqhq/moby,tophj-ibm/docker,charleswhchan/docker,liaoqingwei/docker,cyphar/docker,hqhq/moby,mikebrow/docker,ndeloof/docker,konstruktoid/docker-upstream,ibuildthecloud/docker,sanscontext/docker.github.io,allencloud/docker,ivansaracino/docker,rillig/docker.github.io,sallyom/docker,cyphar/docker,BSWANG/denverdino.github.io,jecarey/docker,icecrime/doc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o,icaoweiwei/docker,shubheksha/docker.github.io,shin-/docker.github.io,jthelin/docker,moxiegirl/docker,estesp/docker,danix800/docker.github.io,catinthesky/docker,umerazad/docker,anweiss/docker.github.io,gigidwan/docker,duglin/docker,scollier/docker,projectatomic/docker,KingEmet/docker,hustcat/docker,splunk/docker,tklauser/docker,thaJeztah/docker.github.io,sterchelen/docker,pradipd/moby,joaofnfernandes/docker.github.io,kerneltime/docker,jlhawn/docker,gjaskiewicz/moby,phiroict/docker,contiv/docker,kolyshkin/docker,zhuguihua/docker,KarthikNayak/docker,bfirsh/docker,unclejack/docker,AkihiroSuda/docker,ffoysal/docker,duglin/docker,solganik/docker,joaofnfernandes/docker.github.io,paralin/docker,moypray/docker,liaoqingwei/docker,rkazak/docker,rhatdan/storage,bdwill/docker.github.io,sfsmithcha/docker,sheimi/docker,mathewkoshy493/docker,erikstmartin/docker,cnaize/docker,gjaskiewicz/moby,nawawi/docker