If a request struct is available, use op_is_write() instead of the iterator
direction.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Christoph Hellwig <hch@lst.de>
cc: Jens Axboe <axboe@kernel.dk>
cc: Christian Brauner <christian@brauner.io>
cc: Alexander Viro <viro@zeniv.linux.org.uk>
cc: linux-block@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
---
 block/blk-map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-map.c b/block/blk-map.c
index 44d74a30ddac..f8fe114ae433 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -205,7 +205,7 @@ static int bio_copy_user_iov(struct request *rq, struct rq_map_data *map_data,
 	/*
 	 * success
 	 */
-	if ((iov_iter_rw(iter) == WRITE &&
+	if ((op_is_write(rq->cmd_flags) &&
 	     (!map_data || !map_data->null_mapped)) ||
 	    (map_data && map_data->from_user)) {
 		ret = bio_copy_from_iter(bio, iter);

On Fri, Jun 30, 2023 at 04:25:19PM +0100, David Howells wrote:
> If a request struct is available, use op_is_write() instead of the iterator
> direction.

s/iov_iter/block/ in the subject.