nvme: use bio_set_dev to assign ->bi_bdev

Always use the bio_set_dev helper to assign ->bi_bdev to make sure
other state related to the device is uptodate.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/nvme/host/core.c

@@ -1133,7 +1133,7 @@ static int nvme_submit_user_cmd(struct request_queue *q,
 		if (ret)
 			goto out;
 		bio = req->bio;
-		bio->bi_bdev = bdev;
+		bio_set_dev(bio, bdev);
 		if (bdev && meta_buffer && meta_len) {
 			meta = nvme_add_user_metadata(bio, meta_buffer, meta_len,
 					meta_seed, write);

drivers/nvme/host/lightnvm.c

@@ -816,7 +816,7 @@ static int nvme_nvm_submit_user_cmd(struct request_queue *q,
 			vcmd->ph_rw.metadata = cpu_to_le64(metadata_dma);
 		}
 
-		bio->bi_bdev = ns->disk->part0;
+		bio_set_dev(bio, ns->disk->part0);
 	}
 
 	blk_execute_rq(NULL, rq, 0);

drivers/nvme/host/multipath.c

@@ -312,7 +312,7 @@ blk_qc_t nvme_ns_head_submit_bio(struct bio *bio)
 	srcu_idx = srcu_read_lock(&head->srcu);
 	ns = nvme_find_path(head);
 	if (likely(ns)) {
-		bio->bi_bdev = ns->disk->part0;
+		bio_set_dev(bio, ns->disk->part0);
 		bio->bi_opf |= REQ_NVME_MPATH;
 		trace_block_bio_remap(bio, disk_devt(ns->head->disk),
 				      bio->bi_iter.bi_sector);
@@ -352,7 +352,7 @@ static void nvme_requeue_work(struct work_struct *work)
 		 * Reset disk to the mpath node and resubmit to select a new
 		 * path.
 		 */
-		bio->bi_bdev = head->disk->part0;
+		bio_set_dev(bio, head->disk->part0);
 		submit_bio_noacct(bio);
 	}
 }