[PATCH 4.14 44/91] null_blk: fix passing of REQ_FUA flag in null_handle_rq

[Greg Kroah-Hartman]

From: Hou Pu <houpu@xxxxxxxxxxxxx>

[ Upstream commit 2d62e6b038e729c3e4bfbfcfbd44800ef0883680 ]

REQ_FUA should be checked using rq->cmd_flags instead of req_op().

Fixes: deb78b419dfda ("nullb: emulate cache")
Signed-off-by: Hou Pu <houpu@xxxxxxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/block/null_blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index b12e373aa956a..ec670a1b7e02f 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -1135,7 +1135,7 @@ static int null_handle_rq(struct nullb_cmd *cmd)
 		len = bvec.bv_len;
 		err = null_transfer(nullb, bvec.bv_page, len, bvec.bv_offset,
 				     op_is_write(req_op(rq)), sector,
-				     req_op(rq) & REQ_FUA);
+				     rq->cmd_flags & REQ_FUA);
 		if (err) {
 			spin_unlock_irq(&nullb->lock);
 			return err;
-- 
2.25.1