/bin/cgroups-umount is in cgroup-lite 1.9.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | #!/bin/sh
# Copyright 2011 Canonical, Inc
# Author: Serge Hallyn <serge.hallyn@canonical.com>
set -e
# We don't care to move tasks around gratuitously - just umount
# the cgroups
# If /sys/fs/cgroup is not mounted, we don't bother
mountpoint -q /sys/fs/cgroup || exit 0
cd /sys/fs/cgroup
for d in `sed -e '1d;s/\([^\t]\)\t.*$/\1/' /proc/cgroups`; do
mountpoint -q $d && umount $d
[ -d $d ] && rmdir $d || true
done
exit 0
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