smb/client: remove unused rq_iter_size from struct smb_rqst

Reviewed-by: David Howells <dhowells@redhat.com>
Fixes: d08089f6 ("cifs: Change the I/O paths to use an iterator rather than a page list")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

fs/smb/client/cifsglob.h

@@ -254,7 +254,6 @@ struct cifs_open_info_data {
 struct smb_rqst {
 	struct kvec	*rq_iov;	/* array of kvecs */
 	unsigned int	rq_nvec;	/* number of kvecs in array */
-	size_t		rq_iter_size;	/* Amount of data in ->rq_iter */
 	struct iov_iter	rq_iter;	/* Data iterator */
 	struct xarray	rq_buffer;	/* Page buffer for encryption */
 };

fs/smb/client/cifssmb.c

@@ -1713,7 +1713,6 @@ cifs_async_writev(struct cifs_io_subrequest *wdata)
 	rqst.rq_iov = iov;
 	rqst.rq_nvec = 2;
 	rqst.rq_iter = wdata->subreq.io_iter;
-	rqst.rq_iter_size = iov_iter_count(&wdata->subreq.io_iter);
 
 	cifs_dbg(FYI, "async write at %llu %zu bytes\n",
 		 wdata->subreq.start, wdata->subreq.len);

fs/smb/client/smb2ops.c

@@ -4446,7 +4446,6 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst,
 			}
 			iov_iter_xarray(&new->rq_iter, ITER_SOURCE,
 					buffer, 0, size);
-			new->rq_iter_size = size;
 		}
 	}
 
@@ -4492,7 +4491,6 @@ decrypt_raw_data(struct TCP_Server_Info *server, char *buf,
 	rqst.rq_nvec = 2;
 	if (iter) {
 		rqst.rq_iter = *iter;
-		rqst.rq_iter_size = iov_iter_count(iter);
 		iter_size = iov_iter_count(iter);
 	}
 

fs/smb/client/smb2pdu.c

@@ -4523,7 +4523,6 @@ smb2_readv_callback(struct mid_q_entry *mid)
 
 	if (rdata->got_bytes) {
 		rqst.rq_iter	  = rdata->subreq.io_iter;
-		rqst.rq_iter_size = iov_iter_count(&rdata->subreq.io_iter);
 	}
 
 	WARN_ONCE(rdata->server != mid->server,
@@ -4975,7 +4974,6 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
 	rqst.rq_iov = iov;
 	rqst.rq_nvec = 1;
 	rqst.rq_iter = wdata->subreq.io_iter;
-	rqst.rq_iter_size = iov_iter_count(&rqst.rq_iter);
 	if (test_bit(NETFS_SREQ_RETRYING, &wdata->subreq.flags))
 		smb2_set_replay(server, &rqst);
 #ifdef CONFIG_CIFS_SMB_DIRECT