bsg_set
struct bsg_set *bset =
container_of(q->tag_set, struct bsg_set, tag_set);
struct bsg_set *bset =
container_of(q->tag_set, struct bsg_set, tag_set);
struct bsg_set *bset =
container_of(rq->q->tag_set, struct bsg_set, tag_set);
struct bsg_set *bset;