# create a small raid1 array, make it larger.  Then make it smaller

mdadm -CR $md0 -e 0.90 --level raid1 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
check wait
check state UUU
testdev $md0 1 $[size/2] 1

mdadm --grow $md0 --size max
check resync
check wait
testdev $md0 1 $mdsize0 1

mdadm --grow $md0 --size $[size/2]
check nosync
testdev $md0 1 $[size/2] 1

mdadm -S $md0

# same again with version 1.1 superblock
mdadm -CR $md0 --level raid1 --metadata=1.1 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3
check wait
check state UUU
testdev $md0 1 $[size/2] 1

mdadm --grow $md0 --size max
check resync
check wait
testdev $md0 1 $mdsize1_l 1

mdadm --grow $md0 --size $[size/2]
check nosync
testdev $md0 1 $[size/2] 1

mdadm -S $md0