#
# create a raid1 array, add an internal bitmap
#
mdadm --create --run $md0 -l 1 -n 2 $dev1 $dev2
check wait
testdev $md0 1 $mdsize1a 64

#mdadm -E $dev1
mdadm --grow $md0 --bitmap=internal --bitmap-chunk=4 --delay=1 || { mdadm -X $dev2 ; exit 1; }
sleep 4
dirty1=`mdadm -X $dev2 | sed -n -e 's/.*Bitmap.* \([0-9]*\) dirty.*/\1/p'`

testdev $md0 1 $mdsize1a 64
sleep 4
dirty2=`mdadm -X $dev2 | sed -n -e 's/.*Bitmap.* \([0-9]*\) dirty.*/\1/p'`

if [ $dirty1 -ne 0 -o $dirty2 -ne 0 ]
then  echo >&2 "ERROR bad 'dirty' counts: dirty1 $dirty1, dirty2 $dirty2"
   echo bad dirty counts
   exit 1
fi

# now to remove the bitmap
check bitmap
mdadm --grow $md0 --bitmap=none
check nobitmap
mdadm -S $md0