| # Copyright 2023 The ChromiumOS Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| description "Trim the thinly provisioned user filesystem" |
| author "chromium-os-dev@chromium.org" |
| |
| stop on stopping ui |
| task |
| |
| # The job can be later restarted. |
| oom score -100 |
| |
| script |
| # Note that this should be very fast on thinly-provisioned filesystems. |
| get_volume_group() { |
| local physical_volume="$1" |
| |
| pvs -qq --readonly --noheadings --separator '|' \ |
| -o vg_name "${physical_volume}" | tr -d '[:space:]' |
| } |
| |
| # Example root dev types we need to handle: /dev/sda2 -> /dev/sda, |
| # /dev/mmcblk0p0 -> /dev/mmcblk0p, /dev/ubi2_1 -> /dev/ubi |
| STATE_DEV="$(rootdev -s | sed 's/[0-9_]*$//')1" |
| |
| VG_NAME="$(get_volume_group "${STATE_DEV}")" |
| if [ -n "${VG_NAME}" ]; then |
| fstrim -v /home/chronos/user |
| fi |
| end script |
