1 files changed, 12 insertions, 0 deletions

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index 7fccf9675df8..cc9852897395 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1363,7 +1363,19 @@ bc_svc_process(struct svc_serv *serv, struct rpc_rqst *req,
         memcpy(&rqstp->rq_addr, &req->rq_xprt->addr, rqstp->rq_addrlen);
         memcpy(&rqstp->rq_arg, &req->rq_rcv_buf, sizeof(rqstp->rq_arg));
         memcpy(&rqstp->rq_res, &req->rq_snd_buf, sizeof(rqstp->rq_res));
+
+        /* Adjust the argument buffer length */
         rqstp->rq_arg.len = req->rq_private_buf.len;
+        if (rqstp->rq_arg.len <= rqstp->rq_arg.head[0].iov_len) {
+                rqstp->rq_arg.head[0].iov_len = rqstp->rq_arg.len;
+                rqstp->rq_arg.page_len = 0;
+        } else if (rqstp->rq_arg.len <= rqstp->rq_arg.head[0].iov_len +
+                        rqstp->rq_arg.page_len)
+                rqstp->rq_arg.page_len = rqstp->rq_arg.len -
+                        rqstp->rq_arg.head[0].iov_len;
+        else
+                rqstp->rq_arg.len = rqstp->rq_arg.head[0].iov_len +
+                        rqstp->rq_arg.page_len;
 
         /* reset result send buffer "put" position */
         resv->iov_len = 0;