Gecko [ tsuru-no-tsurugi.tokyo ]

Name	Size	Permission	Date
aa-remove-unknown	3 KB	-rwxr-xr-x	2024-03-07 03:40
aa-status	8.63 KB	-rwxr-xr-x	2024-03-07 03:40
aa-teardown	139 B	-rwxr-xr-x	2019-06-18 08:55
add-shell	860 B	-rwxr-xr-x	2019-12-07 11:13
addgroup	36.9 KB	-rwxr-xr-x	2020-04-16 23:12
adduser	36.9 KB	-rwxr-xr-x	2020-04-16 23:12
agetty	67.38 KB	-rwxr-xr-x	2026-03-07 01:20
apparmor_parser	1.46 MB	-rwxr-xr-x	2024-03-07 03:40
apparmor_status	8.63 KB	-rwxr-xr-x	2024-03-07 03:40
arpd	78.27 KB	-rwxr-xr-x	2020-02-14 02:21
arptables	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
arptables-nft	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
arptables-nft-restore	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
arptables-nft-save	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
arptables-restore	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
arptables-save	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
badblocks	34.32 KB	-rwxr-xr-x	2023-10-09 10:56
blkdeactivate	14.49 KB	-rwxr-xr-x	2020-02-14 06:21
blkdiscard	34.23 KB	-rwxr-xr-x	2026-03-07 01:20
blkid	118.26 KB	-rwxr-xr-x	2026-03-07 01:20
blkzone	70.23 KB	-rwxr-xr-x	2026-03-07 01:20
blockdev	66.23 KB	-rwxr-xr-x	2026-03-07 01:20
bridge	102.3 KB	-rwxr-xr-x	2020-02-14 02:21
capsh	30.3 KB	-rwxr-xr-x	2025-02-21 01:01
cfdisk	102.59 KB	-rwxr-xr-x	2026-03-07 01:20
chcpu	46.23 KB	-rwxr-xr-x	2026-03-07 01:20
chgpasswd	66.2 KB	-rwxr-xr-x	2024-02-06 21:49
chmem	62.23 KB	-rwxr-xr-x	2026-03-07 01:20
chpasswd	58.2 KB	-rwxr-xr-x	2024-02-06 21:49
chroot	42.34 KB	-rwxr-xr-x	2019-09-05 19:38
cpgr	60.34 KB	-rwxr-xr-x	2024-02-06 21:49
cppw	60.34 KB	-rwxr-xr-x	2024-02-06 21:49
cryptdisks_start	1.51 KB	-rwxr-xr-x	2020-02-04 22:11
cryptdisks_stop	844 B	-rwxr-xr-x	2020-02-04 22:11
cryptsetup	135.54 KB	-rwxr-xr-x	2025-01-30 03:37
cryptsetup-reencrypt	105.32 KB	-rwxr-xr-x	2025-01-30 03:37
ctrlaltdel	38.23 KB	-rwxr-xr-x	2026-03-07 01:20
debugfs	225.8 KB	-rwxr-xr-x	2023-10-09 10:56
delgroup	16.11 KB	-rwxr-xr-x	2020-04-16 23:12
deluser	16.11 KB	-rwxr-xr-x	2020-04-16 23:12
depmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
devlink	150.47 KB	-rwxr-xr-x	2020-02-14 02:21
dhclient	508.98 KB	-rwxr-xr-x	2023-02-01 07:10
dhclient-script	15.92 KB	-rwxr-xr-x	2023-02-01 07:10
dmsetup	171.02 KB	-rwxr-xr-x	2020-02-14 06:21
dmstats	171.02 KB	-rwxr-xr-x	2020-02-14 06:21
dosfsck	58.08 KB	-rwxr-xr-x	2018-05-13 07:59
dosfslabel	54.08 KB	-rwxr-xr-x	2018-05-13 07:59
dumpe2fs	30.38 KB	-rwxr-xr-x	2023-10-09 10:56
e2freefrag	18.38 KB	-rwxr-xr-x	2023-10-09 10:56
e2fsck	327.21 KB	-rwxr-xr-x	2023-10-09 10:56
e2image	42.38 KB	-rwxr-xr-x	2023-10-09 10:56
e2label	106.55 KB	-rwxr-xr-x	2023-10-09 10:56
e2mmpstatus	30.38 KB	-rwxr-xr-x	2023-10-09 10:56
e2scrub	7.13 KB	-rwxr-xr-x	2023-10-09 10:56
e2scrub_all	5.27 KB	-rwxr-xr-x	2023-10-09 10:56
e2undo	22.38 KB	-rwxr-xr-x	2023-10-09 10:56
e4crypt	30.38 KB	-rwxr-xr-x	2023-10-09 10:56
e4defrag	34.3 KB	-rwxr-xr-x	2023-10-09 10:56
ebtables	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ebtables-nft	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ebtables-nft-restore	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ebtables-nft-save	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ebtables-restore	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ebtables-save	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
faillock	14.15 KB	-rwxr-xr-x	2024-01-10 22:55
fatlabel	54.08 KB	-rwxr-xr-x	2018-05-13 07:59
fdformat	34.23 KB	-rwxr-xr-x	2026-03-07 01:20
fdisk	150.27 KB	-rwxr-xr-x	2026-03-07 01:20
filefrag	18.33 KB	-rwxr-xr-x	2023-10-09 10:56
findfs	14.23 KB	-rwxr-xr-x	2026-03-07 01:20
fsck	54.27 KB	-rwxr-xr-x	2026-03-07 01:20
fsck.cramfs	38.26 KB	-rwxr-xr-x	2026-03-07 01:20
fsck.ext2	327.21 KB	-rwxr-xr-x	2023-10-09 10:56
fsck.ext3	327.21 KB	-rwxr-xr-x	2023-10-09 10:56
fsck.ext4	327.21 KB	-rwxr-xr-x	2023-10-09 10:56
fsck.fat	58.08 KB	-rwxr-xr-x	2018-05-13 07:59
fsck.minix	122.25 KB	-rwxr-xr-x	2026-03-07 01:20
fsck.msdos	58.08 KB	-rwxr-xr-x	2018-05-13 07:59
fsck.vfat	58.08 KB	-rwxr-xr-x	2018-05-13 07:59
fsfreeze	14.23 KB	-rwxr-xr-x	2026-03-07 01:20
fstab-decode	14.3 KB	-rwxr-xr-x	2020-02-14 03:38
fstrim	70.23 KB	-rwxr-xr-x	2026-03-07 01:20
genl	82.29 KB	-rwxr-xr-x	2020-02-14 02:21
getcap	14.3 KB	-rwxr-xr-x	2025-02-21 01:01
getpcaps	14.3 KB	-rwxr-xr-x	2025-02-21 01:01
getty	67.38 KB	-rwxr-xr-x	2026-03-07 01:20
groupadd	90.95 KB	-rwxr-xr-x	2024-02-06 21:49
groupdel	86.77 KB	-rwxr-xr-x	2024-02-06 21:49
groupmems	62.24 KB	-rwxr-xr-x	2024-02-06 21:49
groupmod	94.86 KB	-rwxr-xr-x	2024-02-06 21:49
grpck	62.18 KB	-rwxr-xr-x	2024-02-06 21:49
grpconv	58.05 KB	-rwxr-xr-x	2024-02-06 21:49
grpunconv	58.05 KB	-rwxr-xr-x	2024-02-06 21:49
halt	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
hwclock	102.35 KB	-rwxr-xr-x	2026-03-07 01:20
iconvconfig	30.4 KB	-rwxr-xr-x	2026-01-30 17:05
init	1.76 MB	-rwxr-xr-x	2026-06-06 00:40
insmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
installkernel	2.58 KB	-rwxr-xr-x	2019-12-07 11:13
integritysetup	60.23 KB	-rwxr-xr-x	2025-01-30 03:37
invoke-rc.d	16.64 KB	-rwxr-xr-x	2019-06-22 03:56
ip	702.05 KB	-rwxr-xr-x	2025-10-03 22:53
ip6tables	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-apply	6.89 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-legacy	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-legacy-restore	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-legacy-save	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-nft	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-nft-restore	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-nft-save	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-restore	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-restore-translate	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-save	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
ip6tables-translate	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
iptables	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-apply	6.89 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-legacy	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-legacy-restore	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-legacy-save	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-nft	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-nft-restore	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-nft-save	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-restore	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-restore-translate	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-save	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
iptables-translate	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
isosize	30.23 KB	-rwxr-xr-x	2026-03-07 01:20
killall5	26.38 KB	-rwxr-xr-x	2020-02-14 03:38
ldattach	34.23 KB	-rwxr-xr-x	2026-03-07 01:20
ldconfig	387 B	-rwxr-xr-x	2026-01-30 17:05
ldconfig.real	1 MB	-rwxr-xr-x	2026-01-30 17:05
logsave	14.16 KB	-rwxr-xr-x	2023-10-09 10:56
losetup	110.34 KB	-rwxr-xr-x	2026-03-07 01:20
lsmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
luksformat	3.32 KB	-rwxr-xr-x	2020-02-04 22:11
mkdosfs	34.5 KB	-rwxr-xr-x	2018-05-13 07:59
mke2fs	134.62 KB	-rwxr-xr-x	2023-10-09 10:56
mkfs	14.23 KB	-rwxr-xr-x	2026-03-07 01:20
mkfs.bfs	34.23 KB	-rwxr-xr-x	2026-03-07 01:20
mkfs.cramfs	42.16 KB	-rwxr-xr-x	2026-03-07 01:20
mkfs.ext2	134.62 KB	-rwxr-xr-x	2023-10-09 10:56
mkfs.ext3	134.62 KB	-rwxr-xr-x	2023-10-09 10:56
mkfs.ext4	134.62 KB	-rwxr-xr-x	2023-10-09 10:56
mkfs.fat	34.5 KB	-rwxr-xr-x	2018-05-13 07:59
mkfs.minix	106.23 KB	-rwxr-xr-x	2026-03-07 01:20
mkfs.msdos	34.5 KB	-rwxr-xr-x	2018-05-13 07:59
mkfs.vfat	34.5 KB	-rwxr-xr-x	2018-05-13 07:59
mkhomedir_helper	22.17 KB	-rwxr-xr-x	2024-01-10 22:55
mklost+found	14.3 KB	-rwxr-xr-x	2023-10-09 10:56
mkswap	106.23 KB	-rwxr-xr-x	2026-03-07 01:20
modinfo	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
modprobe	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
netplan	798 B	-rwxr-xr-x	2024-06-29 01:59
newusers	98.8 KB	-rwxr-xr-x	2024-02-06 21:49
nfnl_osf	18.3 KB	-rwxr-xr-x	2023-05-10 03:39
nologin	14.3 KB	-rwxr-xr-x	2024-02-06 21:49
pam-auth-update	19.86 KB	-rwxr-xr-x	2021-09-17 15:05
pam_extrausers_chkpwd	42.16 KB	-rwxr-sr-x	2024-01-10 22:55
pam_extrausers_update	42.16 KB	-rwxr-xr-x	2024-01-10 22:55
pam_getenv	2.82 KB	-rwxr-xr-x	2020-08-12 09:15
pam_tally	14.16 KB	-rwxr-xr-x	2024-01-10 22:55
pam_tally2	18.16 KB	-rwxr-xr-x	2024-01-10 22:55
pam_timestamp_check	14.15 KB	-rwxr-xr-x	2024-01-10 22:55
pivot_root	14.23 KB	-rwxr-xr-x	2026-03-07 01:20
poweroff	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
pwck	58.17 KB	-rwxr-xr-x	2024-02-06 21:49
pwconv	54.05 KB	-rwxr-xr-x	2024-02-06 21:49
pwunconv	54.05 KB	-rwxr-xr-x	2024-02-06 21:49
raw	14.23 KB	-rwxr-xr-x	2026-03-07 01:20
readprofile	22.26 KB	-rwxr-xr-x	2026-03-07 01:20
reboot	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
remove-shell	904 B	-rwxr-xr-x	2019-12-07 11:13
resize2fs	66.38 KB	-rwxr-xr-x	2023-10-09 10:56
rfkill	50.23 KB	-rwxr-xr-x	2026-03-07 01:20
rmmod	166.36 KB	-rwxr-xr-x	2026-04-30 21:32
rmt	58.55 KB	-rwxr-xr-x	2023-12-05 14:16
rmt-tar	58.55 KB	-rwxr-xr-x	2023-12-05 14:16
rtacct	48.29 KB	-rwxr-xr-x	2020-02-14 02:21
rtcwake	46.23 KB	-rwxr-xr-x	2026-03-07 01:20
rtmon	78.24 KB	-rwxr-xr-x	2020-02-14 02:21
runlevel	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
runuser	66.23 KB	-rwxr-xr-x	2026-03-07 01:20
service	9.04 KB	-rwxr-xr-x	2019-06-22 03:56
setcap	14.3 KB	-rwxr-xr-x	2025-02-21 01:01
sfdisk	138.23 KB	-rwxr-xr-x	2026-03-07 01:20
shadowconfig	885 B	-rwxr-xr-x	2021-07-15 07:08
shutdown	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
sshd	863.79 KB	-rwxr-xr-x	2026-03-06 04:37
start-stop-daemon	47.32 KB	-rwxr-xr-x	2022-05-25 20:14
sulogin	50.23 KB	-rwxr-xr-x	2026-03-07 01:20
swaplabel	18.23 KB	-rwxr-xr-x	2026-03-07 01:20
swapoff	22.23 KB	-rwxr-xr-x	2026-03-07 01:20
swapon	50.23 KB	-rwxr-xr-x	2026-03-07 01:20
switch_root	14.23 KB	-rwxr-xr-x	2026-03-07 01:20
sysctl	30.23 KB	-rwxr-xr-x	2023-10-31 20:35
tarcat	936 B	-rwxr-xr-x	2023-12-05 14:16
tc	529.45 KB	-rwxr-xr-x	2020-02-14 02:21
telinit	1.06 MB	-rwxr-xr-x	2026-06-06 00:40
tipc	126.23 KB	-rwxr-xr-x	2020-02-14 02:21
tune2fs	106.55 KB	-rwxr-xr-x	2023-10-09 10:56
tzconfig	106 B	-rwxr-xr-x	2025-04-22 19:15
unix_chkpwd	42.15 KB	-rwxr-sr-x	2024-01-10 22:55
unix_update	42.15 KB	-rwxr-xr-x	2024-01-10 22:55
update-ca-certificates	5.29 KB	-rwxr-xr-x	2024-09-25 02:46
update-mime	9.18 KB	-rwxr-xr-x	2019-10-19 08:05
update-passwd	34.56 KB	-rwxr-xr-x	2019-12-17 08:51
update-rc.d	16.76 KB	-rwxr-xr-x	2019-06-22 03:56
useradd	143.71 KB	-rwxr-xr-x	2024-02-06 21:49
userdel	98.89 KB	-rwxr-xr-x	2024-02-06 21:49
usermod	139.49 KB	-rwxr-xr-x	2024-02-06 21:49
veritysetup	51.82 KB	-rwxr-xr-x	2025-01-30 03:37
vigr	68.55 KB	-rwxr-xr-x	2024-02-06 21:49
vipw	68.55 KB	-rwxr-xr-x	2024-02-06 21:49
visudo	218.2 KB	-rwxr-xr-x	2025-06-26 05:10
wipefs	46.23 KB	-rwxr-xr-x	2026-03-07 01:20
wpa_action	1.69 KB	-rwxr-xr-x	2019-08-14 08:12
wpa_cli	152.22 KB	-rwxr-xr-x	2025-02-25 05:14
wpa_supplicant	2.77 MB	-rwxr-xr-x	2025-02-25 05:14
xtables-legacy-multi	96.97 KB	-rwxr-xr-x	2023-05-10 03:39
xtables-monitor	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
xtables-nft-multi	215.32 KB	-rwxr-xr-x	2023-05-10 03:39
zic	62.29 KB	-rwxr-xr-x	2026-01-30 17:05
zramctl	114.34 KB	-rwxr-xr-x	2026-03-07 01:20

Rename

#!/bin/bash

#  Copyright (C) 2018 Oracle.  All Rights Reserved.
#
#  Author: Darrick J. Wong <darrick.wong@oracle.com>
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.
#
#  This program is distributed in the hope that it would be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write the Free Software Foundation,
#  Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.

# Automatically check an LVM-managed filesystem online.
# We use lvm snapshots to do this, which means that we can only
# check filesystems in VGs that have at least 256MB (or so) of
# free space.

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

if (( $EUID != 0 )); then
    echo "e2scrub must be run as root"
    exit 1
fi

snap_size_mb=256
fstrim=0
reap=0
e2fsck_opts=""
conffile="/etc/e2scrub.conf"

test -f "${conffile}" && . "${conffile}"

print_help() {
	echo "Usage: $0 [OPTIONS] mountpoint | device"
	echo
	echo "mountpoint must be on an LVM-managed block device"
	echo "-n: Show what commands e2scrub would execute."
	echo "-r: Remove e2scrub snapshot and exit, do not check anything."
	echo "-t: Run fstrim if successful."
	echo "-V: Print version information and exit."
}

print_version() {
	echo "e2scrub 1.45.5 (07-Jan-2020)"
}

exitcode() {
	ret="$1"

# If we're being run as a service, the return code must fit the LSB
	# init script action error guidelines, which is to say that we
	# compress all errors to 1 ("generic or unspecified error", LSB 5.0
	# section 22.2) and hope the admin will scan the log for what
	# actually happened.

# We have to sleep 2 seconds here because journald uses the pid to
	# connect our log messages to the systemd service.  This is critical
	# for capturing all the log messages if the scrub fails, because the
	# fail service uses the service name to gather log messages for the
	# error report.
	if [ -n "${SERVICE_MODE}" -a "${ret}" -ne 0 ]; then
		test "${ret}" -ne 0 && ret=1
		sleep 2
	fi

exit "${ret}"
}

while getopts "nrtV" opt; do
    case "${opt}" in
	"n") DBG="echo Would execute: " ;;
	"r") reap=1;;
	"t") fstrim=1;;
	"V") print_version; exitcode 0;;
	*) print_help; exitcode 2;;
	esac
done
shift "$((OPTIND - 1))"

arg="$1"
if [ -z "${arg}" ]; then
	print_help
	exitcode 1
fi

if ! type lsblk >& /dev/null ; then
    echo "e2scrub: can't find lsblk --- is util-linux installed?"
    exitcode 1
fi

if ! type lvcreate >& /dev/null ; then
    echo "e2scrub: can't find lvcreate --- is lvm2 installed?"
    exitcode 1
fi

# close file descriptor 3 (from cron) since it causes lvm to kvetch
exec 3<&-

# Find the device for a given mountpoint
dev_from_mount() {
	local mountpt="$(realpath "$1")"

lsblk -o NAME,FSTYPE,MOUNTPOINT -p -P -n 2> /dev/null | while read vars; do
		eval "${vars}"
		if [ "${mountpt}" != "${MOUNTPOINT}" ]; then
			continue
		fi
		case "${FSTYPE}" in
		ext[234])
			echo "${NAME}"
			return 0
			;;
		esac
	done
	return 1
}

# Check a device argument
dev_from_arg() {
	local dev="$1"
	local fstype="$(lsblk -o FSTYPE -n "${dev}" 2> /dev/null)"

case "${fstype}" in
	ext[234])
		echo "${dev}"
		return 0
		;;
	esac
	return 1
}

mnt_from_dev() {
	local dev="$1"

if [ -n "${dev}" ]; then
		lsblk -o MOUNTPOINT -n "${dev}"
	fi
}

# Construct block device path and mountpoint from argument
if [ -b "${arg}" ]; then
	dev="$(dev_from_arg "${arg}")"
	mnt="$(mnt_from_dev "${dev}")"
else
	dev="$(dev_from_mount "${arg}")"
	mnt="${arg}"
fi
if [ ! -e "${dev}" ]; then
	echo "${arg}: Not an ext[234] filesystem."
	print_help
	exitcode 16
fi

# Make sure this is an LVM device we can snapshot
lvm_vars="$(lvs --nameprefixes -o name,vgname,lv_role --noheadings "${dev}" 2> /dev/null)"
eval "${lvm_vars}"
if [ -z "${LVM2_VG_NAME}" ] || [ -z "${LVM2_LV_NAME}" ] ||
   echo "${LVM2_LV_ROLE}" | grep -q "snapshot"; then
	echo "${arg}: Not connnected to an LVM logical volume."
	print_help
	exitcode 16
fi
start_time="$(date +'%Y%m%d%H%M%S')"
snap="${LVM2_LV_NAME}.e2scrub"
snap_dev="/dev/${LVM2_VG_NAME}/${snap}"

teardown() {
	# Remove and wait for removal to succeed.
	${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}"
	while [ -e "${snap_dev}" ] && [ "$?" -eq "5" ]; do
		sleep 0.5
		${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}"
	done
}

check() {
	# First we recover the journal, then we see if e2fsck tries any
	# non-optimization repairs.  If either of these two returns a
	# non-zero status (errors fixed or remaining) then this fs is bad.
	E2FSCK_FIXES_ONLY=1
	export E2FSCK_FIXES_ONLY
	${DBG} "/sbin/e2fsck" -E journal_only -p ${e2fsck_opts} "${snap_dev}" || return $?
	${DBG} "/sbin/e2fsck" -f -y ${e2fsck_opts} "${snap_dev}"
}

mark_clean() {
	${DBG} "/sbin/tune2fs" -C 0 -T "${start_time}" "${dev}"
}

mark_corrupt() {
	${DBG} "/sbin/tune2fs" -E force_fsck "${dev}"
}

setup() {
	# Try to remove snapshot for 30s, bail out if we can't remove it.
	lvremove_deadline="$(( $(date "+%s") + 30))"
	${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}" 2>/dev/null
	while [ -e "${snap_dev}" ] && [ "$?" -eq "5" ] &&
	      [ "$(date "+%s")" -lt "${lvremove_deadline}" ]; do
		sleep 0.5
		${DBG} lvremove -f "${LVM2_VG_NAME}/${snap}"
	done
	if [ -e "${snap_dev}" ]; then
		echo "${arg}: e2scrub snapshot is in use, cannot check!"
		return 1
	fi
	# Create the snapshot, wait for device to appear.
	${DBG} lvcreate -s -L "${snap_size_mb}m" -n "${snap}" "${LVM2_VG_NAME}/${LVM2_LV_NAME}"
	if [ $? -ne 0 ]; then
		echo "${arg}: e2scrub snapshot FAILED, will not check!"
		return 1
	fi
	${DBG} udevadm settle 2> /dev/null
	return 0
}

if [ "${reap}" -gt 0 ]; then
	if [ -e "${snap_dev}" ]; then
		teardown 2> /dev/null
	fi
	exit 0
fi
if ! setup; then
	exitcode 8
fi
trap "teardown; exit 1" EXIT INT QUIT TERM

# Check and react
check
case "$?" in
"0")
	# Clean check!
	echo "${arg}: Scrub succeeded."
	mark_clean
	teardown
	trap '' EXIT

# Trim the free space, which requires the snapshot be deleted.
	if [ "${fstrim}" -eq 1 ] && [ -d "${mnt}" ] && type fstrim > /dev/null 2>&1; then
		echo "${arg}: Trimming free space."
		fstrim -v "${mnt}"
	fi

ret=0
	;;
"8")
	# Operational error, what now?
	echo "${arg}: e2fsck operational error."
	teardown
	trap '' EXIT
	ret=8
	;;
*)
	# fsck failed.  Check if the snapshot is invalid; if so, make a
	# note of that at the end of the log.  This isn't necessarily a
	# failure because the mounted fs could have overflowed the
	# snapshot with regular disk writes /or/ our repair process
	# could have done it by repairing too much.
	#
	# If it's really corrupt we ought to fsck at next boot.
	is_invalid="$(lvs -o lv_snapshot_invalid --noheadings "${snap_dev}" | awk '{print $1}')"
	if [ -n "${is_invalid}" ]; then
		echo "${arg}: Scrub FAILED due to invalid snapshot."
		ret=8
	else
		echo "${arg}: Scrub FAILED due to corruption!  Unmount and run e2fsck -y."
		mark_corrupt
		ret=6
	fi
	teardown
	trap '' EXIT
	;;
esac

exitcode "${ret}"