drbd: Restore the request restart logic

It got lost with the commit 5a7bbad27a410350e64a2d7f5ec18fc73836c14f
"block: remove support for bio remapping from ->make_request"

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
1 file changed