c7b9591ff6
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