Commits
Tejun Heo committed 9677a3e01f8
block/rq_qos: implement rq_qos_ops->queue_depth_changed() wbt already gets queue depth changed notification through wbt_set_queue_depth(). Generalize it into rq_qos_ops->queue_depth_changed() so that other rq_qos policies can easily hook into the events too. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>