nfsd4: no need for encode_compoundres to adjust lengths

xdr_reserve_space should now be calculating the length correctly as we
go, so there's no longer any need to fix it up here.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

2 files changed, 4 insertions, 7 deletions

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 14bfb5568715..b06f9a00ff8d 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1618,6 +1618,7 @@ nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp,
                          struct nfsd4_sequence *seq)
 {
         struct nfsd4_slot *slot = resp->cstate.slot;
+        struct kvec *head = resp->xdr.iov;
         __be32 status;
 
         dprintk("--> %s slot %p\n", __func__, slot);
@@ -1631,6 +1632,8 @@ nfsd4_replay_cache_entry(struct nfsd4_compoundres *resp,
 
         resp->opcnt = slot->sl_opcnt;
         resp->xdr.p = resp->cstate.datap + XDR_QUADLEN(slot->sl_datalen);
+        head->iov_len = (void *)resp->xdr.p - head->iov_base;
+        resp->xdr.buf->len = head->iov_len;
         status = slot->sl_status;
 
         return status;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index e9abf5f66e8b..79b8e1ef0f39 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3789,19 +3789,13 @@ nfs4svc_encode_compoundres(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compo
          * All that remains is to write the tag and operation count...
          */
         struct nfsd4_compound_state *cs = &resp->cstate;
-        struct kvec *iov;
+
         p = resp->tagp;
         *p++ = htonl(resp->taglen);
         memcpy(p, resp->tag, resp->taglen);
         p += XDR_QUADLEN(resp->taglen);
         *p++ = htonl(resp->opcnt);
 
-        if (rqstp->rq_res.page_len) 
-                iov = &rqstp->rq_res.tail[0];
-        else
-                iov = &rqstp->rq_res.head[0];
-        iov->iov_len = ((char *)resp->xdr.p) - (char *)iov->iov_base;
-        BUG_ON(iov->iov_len > PAGE_SIZE);
         if (nfsd4_has_session(cs)) {
                 struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
                 struct nfs4_client *clp = cs->session->se_client;