block, bfq: cleanup __bfq_weights_tree_remove()

It's the same with bfq_weights_tree_remove() now.
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Link: https://lore.kernel.org/r/20220916071942.214222-7-yukuai1@huaweicloud.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/bfq-iosched.c

@@ -944,7 +944,7 @@ void bfq_weights_tree_add(struct bfq_queue *bfqq)
  * See the comments to the function bfq_weights_tree_add() for considerations
  * about overhead.
  */
-void __bfq_weights_tree_remove(struct bfq_queue *bfqq)
+void bfq_weights_tree_remove(struct bfq_queue *bfqq)
 {
 	struct rb_root_cached *root;
 
@@ -964,15 +964,6 @@ void __bfq_weights_tree_remove(struct bfq_queue *bfqq)
 	bfq_put_queue(bfqq);
 }
 
-/*
- * Invoke __bfq_weights_tree_remove on bfqq and decrement the number
- * of active groups for each queue's inactive parent entity.
- */
-void bfq_weights_tree_remove(struct bfq_queue *bfqq)
-{
-	__bfq_weights_tree_remove(bfqq);
-}
-
 /*
  * Return expired entry, or NULL to just start from scratch in rbtree.
  */

block/bfq-iosched.h

@@ -970,7 +970,6 @@ void bic_set_bfqq(struct bfq_io_cq *bic, struct bfq_queue *bfqq, bool is_sync);
 struct bfq_data *bic_to_bfqd(struct bfq_io_cq *bic);
 void bfq_pos_tree_add_move(struct bfq_data *bfqd, struct bfq_queue *bfqq);
 void bfq_weights_tree_add(struct bfq_queue *bfqq);
-void __bfq_weights_tree_remove(struct bfq_queue *bfqq);
 void bfq_weights_tree_remove(struct bfq_queue *bfqq);
 void bfq_bfqq_expire(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 		     bool compensate, enum bfqq_expiration reason);

block/bfq-wf2q.c

@@ -770,7 +770,7 @@ __bfq_entity_update_weight_prio(struct bfq_service_tree *old_st,
 		 * there is a counter associated with the entity).
 		 */
 		if (prev_weight != new_weight && bfqq)
-			__bfq_weights_tree_remove(bfqq);
+			bfq_weights_tree_remove(bfqq);
 		entity->weight = new_weight;
 		/*
 		 * Add the entity, if it is not a weight-raised queue,