This change allows btrfs subvolumes to be found in additional system
configurations. The old logic failed to correctly identify subvolumes
when the root fs was mounted as a subvolume that was not the btrfs
filesystem root.
Signed-off-by: Adam Mills <adam@armills.info>
Upstream-commit: c3aa75c5a73bed12f44d863618cabef780f5f5bd
Component: engine
The contrib directory contains scripts, images, and other helpful things
which are not part of the core docker distribution. Please note that they
could be out of date, since they do not receive the same attention as the
rest of the repository.
c7b9591ff6