Assign qgroup <src> as the child qgroup of <dst> in the btrfs filesystem identified by <path>.Options --rescancreate <qgroupid> <path>
Automatically schedule quota rescan if the new qgroup assignment leads to quota inconsistency.--no-rescan
Explicitly ask not to do a rescan.
Create a subvolume quota group.For the 0/<subvolume id> qgroup, a qgroup can be created even before the subvolume created.destroy <qgroupid> <path>
Destroy a qgroup.If a qgroup is no isolated,which means it is a parent or child qgroup, it can’t be destroyed.limit [options] <size>|none [<qgroupid>] <path>
Limit the size of a qgroup to <size> or no limit in the btrfs filesystem identified by <path>.If <qgroupid> is not given, qgroup of the subvolume identified by <path> is used if possible.Options -cremove <src> <dst> <path>
limit amount of data after compression. This is the default, it is currently not possible to turn off this option.-e
limit space exclusively assigned to this qgroup.
Remove the relationship between child qgroup <src> and parent qgroup <dst> in the btrfs filesystem identified by <path>.show [options] <path>
Show all qgroups in the btrfs filesystem identified by <path>.Options -pmkfs.btrfs(8), btrfs-subvolume(8), btrfs-quota(8),
print parent qgroup id.-c
print child qgroup id.-r
print limit of referenced size of qgroup.-e
print limit of exclusive size of qgroup.-F
list all qgroups which impact the given path(include ancestral qgroups)-f
list all qgroups which impact the given path(exclude ancestral qgroups)--raw
raw numbers in bytes, without the B suffix.--human-readable
print human friendly numbers, base 1024, this is the default--iec
select the 1024 base for the following options, according to the IEC standard.--si
select the 1000 base for the following options, according to the SI standard.--kbytes
show sizes in KiB, or kB with --si.--mbytes
show sizes in MiB, or MB with --si.--gbytes
show sizes in GiB, or GB with --si.--tbytes
show sizes in TiB, or TB with --si.--sort=[+/-] <attr>[,[+/-]<attr>]...
list qgroups in order of <attr>.<attr> can be one or more of qgroupid,rfer,excl,max_rfer,max_excl.Prefix '+' means ascending order and '-' means descending order of <attr>. If no prefix is given, use ascending order by default.If multiple <attr>s is given, use comma to separate.--sync
To retrieve information after updating the state of qgroups, force sync of the filesystem identified by <path> before getting information.