tests: Try to improve LVM test performance on btrfs
tests: Try to improve LVM test performance on btrfs

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

techtonik/lxd,jumpstarter-io/lxd,jensg-st/lxd,lxc/lxd,jsavikko/lxd,atxwebs/lxd,rrva/lxd,Skarlso/lxd,atxwebs/lxd,jensg-st/lxd,achanda/lxd,hallyn/lxd,pcdummy/lxd,beni55/lxd,hallyn/lxd,akshaykarle/lxd,rcj4747/lxd,yura-pakhuchiy/lxd,erikmack/lxd,smoser/lxd,jumpstarter-io/lxd,mikemccracken/lxd,achanda/lxd,akshaykarle/lxd,Skarlso/lxd,lxc/lxd,stgraber/lxd,benaryorg/lxd,lxc/lxd,smoser/lxd,chrisglass/lxd,erikmack/lxd,Skarlso/lxd,benaryorg/lxd,ollie314/lxd,yura-pakhuchiy/lxd,georghopp/lxd,erikmack/lxd,dustinkirkland/lxd,jensg-st/lxd,pcdummy/lxd,mjeanson/lxd,rrva/lxd,chrisglass/lxd,georghopp/lxd,benaryorg/lxd,atxwebs/lxd,ericsnowcurrently/lxd,Skarlso/lxd,georghopp/lxd,akshaykarle/lxd,hallyn/lxd,ollie314/lxd,beni55/lxd,hallyn/lxd,ollie314/lxd,jumpstarter-io/lxd,rcj4747/lxd,jsavikko/lxd,techtonik/lxd,ericsnowcurrently/lxd,mikemccracken/lxd,stgraber/lxd,mjeanson/lxd,mikemccracken/lxd,Malizor/lxd,stgraber/lxd,yura-pakhuchiy/lxd,stgraber/lxd,stgraber/lxd,sl1pm4t/lxd,dustinkirkland/lxd,sl1pm4t/lxd,atxwebs/lxd,Malizor/lxd,rrva/lxd,lxc/lxd,stgraber/lxd,sl1pm4t/lxd,hallyn/lxd,lxc/lxd,ericsnowcurrently/lxd,pcdummy/lxd,lxc/lxd,dustinkirkland/lxd,beni55/lxd,hallyn/lxd,jsavikko/lxd,techtonik/lxd,achanda/lxd,mjeanson/lxd,stgraber/lxd,rcj4747/lxd,Malizor/lxd,lxc/lxd,chrisglass/lxd,smoser/lxd