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.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 17 insertions, 0 deletions

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 812dac9ecb29..3217139d2e0b 100644
--- a/block/blk-mq.c
+++ b/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)
 {