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set -e -x
# revert a reshape that is increasing the number of devices,
# raid5, raid6, and raid10
# metadate 0.90 cannot handle RAID10 growth
# metadata 1.0 doesn't get a default headspace, is don't try it either.
for metadata in 0.90 1.1 1.2
do
# RAID5
mdadm -CR --assume-clean $md0 -l5 -n4 -x1 $devlist4 --metadata=$metadata
check raid5
testdev $md0 3 $mdsize1 512
mdadm -G $md0 -n 5
sleep 3
mdadm -S $md0
mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=/tmp/md-backup
check wait
check raid5
testdev $md0 3 $mdsize1 512
mdadm -S $md0
# RAID6
mdadm -CR --assume-clean $md0 -l6 -n4 -x1 $devlist4 --metadata=$metadata
check raid6
testdev $md0 2 $mdsize1 512
mdadm -G $md0 -n 5
sleep 3
mdadm -S $md0
mdadm -A $md0 --update=revert-reshape $devlist4 --backup-file=/tmp/md-backup
check wait
check raid6
testdev $md0 2 $mdsize1 512
mdadm -S $md0
if [ $metadata = 0.90 ]; then continue; fi
# RAID10
mdadm -CR --assume-clean $md0 -l10 -n4 -x1 $devlist4 --metadata=$metadata
check raid10
testdev $md0 2 $mdsize1 512
mdadm -G $md0 -n 5
sleep 3
mdadm -S $md0
mdadm -A $md0 --update=revert-reshape $devlist4
check wait
check raid10
testdev $md0 2 $mdsize1 512
mdadm -S $md0
done
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