[Bug 1441068] Re: lxc-destroy fails on btrfs subvolumes

[Chris West]

This also occurs for limited user containers, without asking for a btrfs
backing store.  This is more of a problem as the limited user can't
delete (or even detect) the subvolume themselves.

On a standard whole-partition-as-btrfs system, as setup by the installer, this looks like:
ID 257 gen 46021 top level 5 path @
ID 258 gen 46021 top level 5 path @home
...
ID 373 gen 35464 top level 257 path @/var/lib/machines
ID 374 gen 45983 top level 258 path faux/.local/share/lxc/vivid/rootfs/var/lib/machines
ID 395 gen 45995 top level 258 path faux/.local/share/lxc/vivid2/rootfs/var/lib/machines
ID 396 gen 46011 top level 258 path faux/.local/share/lxc/vivid3/rootfs/var/lib/machines
ID 397 gen 46014 top level 258 path faux/.local/share/lxc/vivid4/rootfs/var/lib/machines

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Title:
  lxc-destroy fails on btrfs subvolumes

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