+/*
+ * called in either blk_queue_cleanup or elevator_switch, tagset
+ * is required for freeing requests
+ */
+void blk_mq_sched_free_requests(struct request_queue *q)
+{
+ struct blk_mq_hw_ctx *hctx;
+ int i;
+
+ lockdep_assert_held(&q->sysfs_lock);
+ WARN_ON(!q->elevator);
+
+ queue_for_each_hw_ctx(q, hctx, i) {
+ if (hctx->sched_tags)
+ blk_mq_free_rqs(q->tag_set, hctx->sched_tags, i);
+ }
+}
+