Linux 3.10 will allow more "--add" to be handled as "--re-add".
To be sure the tests work correctly we sometimes need to zero
the device to ensure it really is an --add that happens.
Signed-off-by: NeilBrown <neilb@suse.de>
mdadm --assemble -R $md0 --bitmap=$bmf $dev2
dirty4=`mdadm -X $bmf | sed -n -e 's/.*Bitmap.* \([0-9]*\) dirty.*/\1/p'`
+mdadm --zero $dev1 # force --add, not --re-add
mdadm $md0 --add $dev1
#it is too fast# check recovery
mdadm -S $md0
mdadm --assemble -R $md0 --bitmap=$bmf $dev2 $dev3
+mdadm --zero $dev1 # force add, not re-add
mdadm $md0 --add $dev1
check recovery
mdadm -S $md0
mdadm --assemble -R $md0 $dev2 $dev3
+mdadm --zero $dev1 # force --add, not --re-add
mdadm $md0 --add $dev1
check recovery
mdadm -S $md0
mdadm --assemble -R $md0 --bitmap=$bmf $dev1 $dev2 $dev4
+mdadm --zero $dev3 # force --add, not --re-add
mdadm $md0 --add $dev3
check recovery