# \[PATCH 04/20\] null\_blk: stop using -\>queuedata for bio mode

- From: Christoph Hellwig \<hch@lst.de\>
- Date: 2020-07-01 09:01:50 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2020/07/6021472
- Thread: https://ratatoskr.run/linuxppc-dev/2020/07/6021473/t.md

```text
Instead of setting up the queuedata as well just use one private data
field.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/block/null_blk_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/null_blk_main.c b/drivers/block/null_blk_main.c
index 82259242b9b5c9..93ce0a00b2ae01 100644
--- a/drivers/block/null_blk_main.c
+++ b/drivers/block/null_blk_main.c
@@ -1392,7 +1392,7 @@ static blk_qc_t null_queue_bio(struct request_queue *q, struct bio *bio)
 {
 	sector_t sector = bio->bi_iter.bi_sector;
 	sector_t nr_sectors = bio_sectors(bio);
-	struct nullb *nullb = q->queuedata;
+	struct nullb *nullb = bio->bi_disk->private_data;
 	struct nullb_queue *nq = nullb_to_queue(nullb);
 	struct nullb_cmd *cmd;
 
-- 
2.26.2

```
