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#
# test interrupting and restarting raid5 reshape.
set -x
devs="$dev1"
st=UU
for disks in 2 3 4 5
do
eval devs=\"$devs \$dev$disks\"
st=U$st
for d in $devs
do dd if=/dev/urandom of=$d bs=1024 || true
done
case $disks in
2 | 3) chunk=1024;;
4 ) chunk=512;;
5 ) chunk=256;;
esac
mdadm -CR $md0 -amd -l5 -c $chunk -n$disks --assume-clean $devs
mdadm $md0 --add $dev6
echo 20 > /proc/sys/dev/raid/speed_limit_min
echo 20 > /proc/sys/dev/raid/speed_limit_max
mdadm --grow $md0 -n $[disks+1]
check reshape
check state $st
mdadm --stop $md0
mdadm --assemble $md0 $devs $dev6
check reshape
echo 1000 > /proc/sys/dev/raid/speed_limit_min
echo 2000 > /proc/sys/dev/raid/speed_limit_max
check wait
max=5
for ((i = 0 ; i < max ; i++ )); do
if [[ $(echo check > /sys/block/md0/md/sync_action) != 0 ]]; then
break;
fi
sleep 1
done
if [[ i == max ]]; then
echo >&2 "Timeout waiting for check to succeed"
exit 1
fi
check wait
mm=`cat /sys/block/md0/md/mismatch_cnt`
if [ $mm -gt 0 ]
then echo >&2 "ERROR mismatch_cnt non-zero : $mm" ; exit 1
fi
mdadm -S $md0
done
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