From: Chuck Lever <chuck.lever@xxxxxxxxxx>
De-duplicate the encoding of the fore channel and backchannel
attributes.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
fs/nfsd/nfs4xdr.c | 80 +++++++++++++++++++++++++++++------------------------
1 file changed, 44 insertions(+), 36 deletions(-)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index e41e46213444..01820492c013 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -4778,6 +4778,44 @@ nfsd4_encode_exchange_id(struct nfsd4_compoundres *resp, __be32 nfserr,
return 0;
}
+static __be32
+nfsd4_encode_channel_attrs4(struct xdr_stream *xdr,
+ const struct nfsd4_channel_attrs *attrs)
+{
+ __be32 status;
+
+ /* ca_headerpadsize */
+ status = nfsd4_encode_count4(xdr, 0);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxrequestsize */
+ status = nfsd4_encode_count4(xdr, attrs->maxreq_sz);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxresponsesize */
+ status = nfsd4_encode_count4(xdr, attrs->maxresp_sz);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxresponsesize_cached */
+ status = nfsd4_encode_count4(xdr, attrs->maxresp_cached);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxoperations */
+ status = nfsd4_encode_count4(xdr, attrs->maxops);
+ if (status != nfs_ok)
+ return status;
+ /* ca_maxrequests */
+ status = nfsd4_encode_count4(xdr, attrs->maxreqs);
+ if (status != nfs_ok)
+ return status;
+ /* ca_rdma_ird<1> */
+ if (xdr_stream_encode_u32(xdr, attrs->nr_rdma_attrs) != XDR_UNIT)
+ return nfserr_resource;
+ if (attrs->nr_rdma_attrs)
+ return nfsd4_encode_uint32_t(xdr, attrs->rdma_attrs);
+ return nfs_ok;
+}
+
static __be32
nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
union nfsd4_op_u *u)
@@ -4794,42 +4832,12 @@ nfsd4_encode_create_session(struct nfsd4_compoundres *resp, __be32 nfserr,
*p++ = cpu_to_be32(sess->seqid);
*p++ = cpu_to_be32(sess->flags);
- p = xdr_reserve_space(xdr, 28);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0); /* headerpadsz */
- *p++ = cpu_to_be32(sess->fore_channel.maxreq_sz);
- *p++ = cpu_to_be32(sess->fore_channel.maxresp_sz);
- *p++ = cpu_to_be32(sess->fore_channel.maxresp_cached);
- *p++ = cpu_to_be32(sess->fore_channel.maxops);
- *p++ = cpu_to_be32(sess->fore_channel.maxreqs);
- *p++ = cpu_to_be32(sess->fore_channel.nr_rdma_attrs);
-
- if (sess->fore_channel.nr_rdma_attrs) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(sess->fore_channel.rdma_attrs);
- }
-
- p = xdr_reserve_space(xdr, 28);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(0); /* headerpadsz */
- *p++ = cpu_to_be32(sess->back_channel.maxreq_sz);
- *p++ = cpu_to_be32(sess->back_channel.maxresp_sz);
- *p++ = cpu_to_be32(sess->back_channel.maxresp_cached);
- *p++ = cpu_to_be32(sess->back_channel.maxops);
- *p++ = cpu_to_be32(sess->back_channel.maxreqs);
- *p++ = cpu_to_be32(sess->back_channel.nr_rdma_attrs);
-
- if (sess->back_channel.nr_rdma_attrs) {
- p = xdr_reserve_space(xdr, 4);
- if (!p)
- return nfserr_resource;
- *p++ = cpu_to_be32(sess->back_channel.rdma_attrs);
- }
- return 0;
+ /* csr_fore_chan_attrs */
+ nfserr = nfsd4_encode_channel_attrs4(xdr, &sess->fore_channel);
+ if (nfserr != nfs_ok)
+ return nfserr;
+ /* csr_back_chan_attrs */
+ return nfsd4_encode_channel_attrs4(xdr, &sess->back_channel);
}
static __be32
