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authorDan Williams <dan.j.williams@intel.com>2016-01-10 18:53:55 +0300
committerDan Williams <dan.j.williams@intel.com>2016-01-10 18:53:55 +0300
commit8b63b6bfc1a551acf154061699028c7032d7890c (patch)
tree16882e9bc9e35eacb870a6d8a71617e579c4ffdc /net/sunrpc/svc.c
parente07ecd76d4db7bda1e9495395b2110a3fe28845a (diff)
parent55f5560d8c18fe33fc169f8d244a9247dcac7612 (diff)
downloadlinux-8b63b6bfc1a551acf154061699028c7032d7890c.tar.xz
Merge branch 'for-4.5/block-dax' into for-4.5/libnvdimm
Diffstat (limited to 'net/sunrpc/svc.c')
-rw-r--r--net/sunrpc/svc.c12
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;