The functions these get passed to have been taking pointers to const
since at least 2.6.16.
Acked-by: NJens Axboe <axboe@kernel.dk>
Acked-by: NRoger Pau Monné <roger.pau@citrix.com>
Signed-off-by: NJan Beulich <jbeulich@suse.com>
Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>