I'm trying to use this feature of qgroup:
btrfs qgroup assign <srcid> <destid> <path>
Assigns the lower level qgroup src to the higher level qgroup dest
in the btrfs found in <path>. It is used to build qgroup
hierarchies.
However, I fail to understand how this feature should work, and I'm
getting "ERROR: bad relation requested":
# btrfs sub create test1
Create subvolume './test1'
# btrfs sub create test2
Create subvolume './test2'
# btrfs sub list /mnt/lxc2 | grep test
ID 1177 gen 85131 top level 5 path test1
ID 1178 gen 85132 top level 5 path test2
# btrfs qgroup show /mnt/lxc2
0/1177 4096 4096
0/1178 4096 4096
# btrfs qgroup assign 1177 1178 /mnt/lx2
ERROR: bad relation requested '/mnt/lx2'
Could anyone give examples of proper usage of this feature?
This is Linux 3.10.
--
Tomasz Chmielewski
http://wpkg.org
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