Thanks for the review Omar! >> >> -unsigned int blk_stat_rq_ddir(const struct request *rq) >> +int blk_stat_rq_ddir(const struct request *rq) >> { >> - return rq_data_dir(rq); >> + return (int)rq_data_dir(rq); > >The cast here here isn't necessary, let's leave it off. > OK, I will add that in the respin! >> } >> EXPORT_SYMBOL_GPL(blk_stat_rq_ddir); >> >> @@ -100,6 +100,8 @@ void blk_stat_add(struct request *rq) >> list_for_each_entry_rcu(cb, &q->stats->callbacks, list) { >> if (blk_stat_is_active(cb)) { >> bucket = cb->bucket_fn(rq); >> + if (bucket < 0) >> + continue; > >You also need to change the declaration of bucket to int above. > Ummmm, it is already is an int… Stephen