btrfs: Do not disable quota on cleanup
btrfs: Do not disable quota on cleanup

Before this change, cleanup of the btrfs driver (occuring on each daemon
shutdown) resulted in disabling quotas. It was done with an assumption
that quotas can be enabled or disabled on a subvolume level, which is
not true - enabling or disabling quota is always done on a filesystem
level.

That was leading to disabling quota on btrfs filesystems on each daemon
shutdown.

This change fixes that behavior and removes misleading `subvol` prefix
from functions and methods which set up quota (on a filesystem level).

Fixes: #34593
Fixes: 401c8d176743 ("Add disk quota support for btrfs")
Signed-off-by: Michal Rostecki <82ebf970c69340aebb770c3853be5fd96a3eb584@opensuse.org>

nalind/docker,jthelin/docker,nawawi/docker,Ramzec/docker,paralin/docker,jameszhan/docker,konstruktoid/docker-upstream,moul/docker,Ramzec/docker,Mokolea/docker,nawawi/docker,flavio/docker,AkihiroSuda/docker,djs55/docker,bearstech/moby,moul/docker,mahak/docker,cpuguy83/docker,trebonian/docker,paralin/docker,gnailuy/docker,yosifkit/docker,gnailuy/docker,Ramzec/docker,Ramzec/docker,thaJeztah/docker,vdemeester/docker,djs55/docker,jimjag/docker,moby/moby,kojiromike/docker,Mokolea/docker,konstruktoid/docker-upstream,nalind/docker,nalind/docker,flavio/docker,Mokolea/docker,moul/docker,konstruktoid/docker-upstream,nalind/docker,yosifkit/docker,jameszhan/docker,cpuguy83/docker,thaJeztah/docker,bearstech/moby,nawawi/docker,jthelin/docker,cpuguy83/docker,AkihiroSuda/docker,djs55/docker,thaJeztah/docker,mahak/docker,paralin/docker,docker/docker,trebonian/docker,docker/docker,jimjag/docker,yosifkit/docker,moby/moby,trebonian/docker,AkihiroSuda/docker,mahak/docker,vdemeester/docker,jimjag/docker,jameszhan/docker,thaJeztah/docker,nawawi/docker,flavio/docker,kojiromike/docker,mahak/docker,gnailuy/docker,Mokolea/docker,vdemeester/docker,gnailuy/docker,moby/moby,bearstech/moby,moul/docker,cpuguy83/docker,bearstech/moby,jimjag/docker,trebonian/docker,docker/docker,yosifkit/docker,kojiromike/docker,flavio/docker,AkihiroSuda/docker,paralin/docker,moby/moby,konstruktoid/docker-upstream