block: move blk_rq_init to blk-mq.c

blk_rq_init deals with a request structure, so move it to blk-mq.c
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20211117061404.331732-7-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-core.c

@@ -109,23 +109,6 @@ bool blk_queue_flag_test_and_set(unsigned int flag, struct request_queue *q)
 }
 EXPORT_SYMBOL_GPL(blk_queue_flag_test_and_set);
 
-void blk_rq_init(struct request_queue *q, struct request *rq)
-{
-	memset(rq, 0, sizeof(*rq));
-
-	INIT_LIST_HEAD(&rq->queuelist);
-	rq->q = q;
-	rq->__sector = (sector_t) -1;
-	INIT_HLIST_NODE(&rq->hash);
-	RB_CLEAR_NODE(&rq->rb_node);
-	rq->tag = BLK_MQ_NO_TAG;
-	rq->internal_tag = BLK_MQ_NO_TAG;
-	rq->start_time_ns = ktime_get_ns();
-	rq->part = NULL;
-	blk_crypto_rq_set_defaults(rq);
-}
-EXPORT_SYMBOL(blk_rq_init);
-
 #define REQ_OP_NAME(name) [REQ_OP_##name] = #name
 static const char *const blk_op_name[] = {
 	REQ_OP_NAME(READ),

block/blk-mq.c

@@ -328,6 +328,23 @@ void blk_mq_wake_waiters(struct request_queue *q)
 			blk_mq_tag_wakeup_all(hctx->tags, true);
 }
 
+void blk_rq_init(struct request_queue *q, struct request *rq)
+{
+	memset(rq, 0, sizeof(*rq));
+
+	INIT_LIST_HEAD(&rq->queuelist);
+	rq->q = q;
+	rq->__sector = (sector_t) -1;
+	INIT_HLIST_NODE(&rq->hash);
+	RB_CLEAR_NODE(&rq->rb_node);
+	rq->tag = BLK_MQ_NO_TAG;
+	rq->internal_tag = BLK_MQ_NO_TAG;
+	rq->start_time_ns = ktime_get_ns();
+	rq->part = NULL;
+	blk_crypto_rq_set_defaults(rq);
+}
+EXPORT_SYMBOL(blk_rq_init);
+
 static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
 		struct blk_mq_tags *tags, unsigned int tag, u64 alloc_time_ns)
 {