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|
#!/bin/bash
#
# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
umask 022
PATH=/sbin:/bin:/usr/sbin:/usr/bin
export PATH
if [ -f /etc/default/btrfsmaintenance ] ; then
. /etc/default/btrfsmaintenance
fi
if [ -f /etc/default/btrfsmaintenance ] ; then
. /etc/default/btrfsmaintenance
fi
LOGIDENTIFIER='btrfs-scrub'
. $(dirname $(realpath "$0"))/btrfsmaintenance-functions
readonly=
if [ "$BTRFS_SCRUB_READ_ONLY" = "true" ]; then
readonly=-r
fi
ioprio=
if [ "$BTRFS_SCRUB_PRIORITY" = "normal" ]; then
# ionice(3) best-effort, level 4
ioprio="-c 2 -n 4"
fi
{
BTRFS_SCRUB_MOUNTPOINTS=$(expand_auto_mountpoint "$BTRFS_SCRUB_MOUNTPOINTS")
OIFS="$IFS"
IFS=:
exec 2>&1 # redirect stderr to stdout to catch all output to log destination
for MNT in $BTRFS_SCRUB_MOUNTPOINTS; do
IFS="$OIFS"
echo "Running scrub on $MNT"
if ! is_btrfs "$MNT"; then
echo "Path $MNT is not btrfs, skipping"
continue
fi
if ! is_raid56 "$MNT"; then
echo "RAID level is not 5 or 6, parallel device scrubbing"
run_task btrfs scrub start -Bd $ioprio $readonly "$MNT"
else
echo "RAID level is 5 or 6, sequential device scrubbing"
for DEV in $(btrfs filesystem show "$MNT" | awk '/ path /{print $NF}')
do
run_task btrfs scrub start -Bd $ioprio $readonly "$DEV"
until btrfs scrub status "$DEV" | grep finished
do
sleep 5
done
done
fi
if [ "$?" != "0" ]; then
echo "Scrub cancelled at $MNT"
exit 1
fi
done
} | \
case "$BTRFS_LOG_OUTPUT" in
stdout) cat;;
journal) systemd-cat -t "$LOGIDENTIFIER";;
syslog) logger -t "$LOGIDENTIFIER";;
none) cat >/dev/null;;
*) cat;;
esac
exit 0
|
