SUNRPC: Ensure rq_bytes_sent is reset before request transmission

When we resend a request, ensure that the 'rq_bytes_sent' is reset
to zero.
Signed-off-by: NTrond Myklebust <trond.myklebust@hammerspace.com>

net/sunrpc/backchannel_rqst.c

@@ -252,7 +252,6 @@ static struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt, __be32 xid)
 	req = list_first_entry(&xprt->bc_pa_list, struct rpc_rqst,
 				rq_bc_pa_list);
 	req->rq_reply_bytes_recvd = 0;
-	req->rq_bytes_sent = 0;
 	memcpy(&req->rq_private_buf, &req->rq_rcv_buf,
 			sizeof(req->rq_private_buf));
 	req->rq_xid = xid;

net/sunrpc/xprt.c

@@ -1602,7 +1602,6 @@ xprt_request_init(struct rpc_task *task)
 	req->rq_buffer  = NULL;
 	req->rq_xid	= xprt_alloc_xid(xprt);
 	xprt_init_connect_cookie(req, xprt);
-	req->rq_bytes_sent = 0;
 	req->rq_snd_buf.len = 0;
 	req->rq_snd_buf.buflen = 0;
 	req->rq_rcv_buf.len = 0;
@@ -1752,7 +1751,6 @@ xprt_init_bc_request(struct rpc_rqst *req, struct rpc_task *task)
 	 */
 	xbufp->len = xbufp->head[0].iov_len + xbufp->page_len +
 		xbufp->tail[0].iov_len;
-	req->rq_bytes_sent = 0;
 }
 #endif
 

net/sunrpc/xprtrdma/backchannel.c

@@ -267,7 +267,6 @@ void rpcrdma_bc_receive_call(struct rpcrdma_xprt *r_xprt,
 
 	/* Prepare rqst */
 	rqst->rq_reply_bytes_recvd = 0;
-	rqst->rq_bytes_sent = 0;
 	rqst->rq_xid = *p;
 
 	rqst->rq_private_buf.len = size;

net/sunrpc/xprtrdma/transport.c

@@ -738,7 +738,6 @@ xprt_rdma_send_request(struct rpc_rqst *rqst)
 		goto drop_connection;
 
 	rqst->rq_xmit_bytes_sent += rqst->rq_snd_buf.len;
-	rqst->rq_bytes_sent = 0;
 
 	/* An RPC with no reply will throw off credit accounting,
 	 * so drop the connection to reset the credit grant.

net/sunrpc/xprtsock.c

@@ -951,7 +951,6 @@ static int xs_local_send_request(struct rpc_rqst *req)
 		req->rq_bytes_sent = transport->xmit.offset;
 		if (likely(req->rq_bytes_sent >= req->rq_slen)) {
 			req->rq_xmit_bytes_sent += transport->xmit.offset;
-			req->rq_bytes_sent = 0;
 			transport->xmit.offset = 0;
 			return 0;
 		}
@@ -1117,7 +1116,6 @@ static int xs_tcp_send_request(struct rpc_rqst *req)
 		req->rq_bytes_sent = transport->xmit.offset;
 		if (likely(req->rq_bytes_sent >= req->rq_slen)) {
 			req->rq_xmit_bytes_sent += transport->xmit.offset;
-			req->rq_bytes_sent = 0;
 			transport->xmit.offset = 0;
 			return 0;
 		}