SUNRPC: New xdr_streams XDR encoder API
Now that all client-side XDR encoder routines use xdr_streams, there
should be no need to support the legacy calling sequence [rpc_rqst *,
__be32 *, RPC arg *] anywhere. We can construct an xdr_stream in the
generic RPC code, instead of in each encoder function.
Also, all the client-side encoder functions return 0 now, making a
return value superfluous. Take this opportunity to convert them to
return void instead.
This is a refactoring change. It should not cause different behavior.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index d812818..baa77bc 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -459,25 +459,17 @@
xdr_encode_opaque_fixed(p, argp->priv->data, SM_PRIV_SIZE);
}
-static int xdr_enc_mon(struct rpc_rqst *req, __be32 *p,
- const struct nsm_args *argp)
+static void nsm_xdr_enc_mon(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nsm_args *argp)
{
- struct xdr_stream xdr;
-
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_mon_id(&xdr, argp);
- encode_priv(&xdr, argp);
- return 0;
+ encode_mon_id(xdr, argp);
+ encode_priv(xdr, argp);
}
-static int xdr_enc_unmon(struct rpc_rqst *req, __be32 *p,
- const struct nsm_args *argp)
+static void nsm_xdr_enc_unmon(struct rpc_rqst *req, struct xdr_stream *xdr,
+ const struct nsm_args *argp)
{
- struct xdr_stream xdr;
-
- xdr_init_encode(&xdr, &req->rq_snd_buf, p);
- encode_mon_id(&xdr, argp);
- return 0;
+ encode_mon_id(xdr, argp);
}
static int xdr_dec_stat_res(struct rpc_rqst *rqstp, __be32 *p,
@@ -524,7 +516,7 @@
static struct rpc_procinfo nsm_procedures[] = {
[NSMPROC_MON] = {
.p_proc = NSMPROC_MON,
- .p_encode = (kxdrproc_t)xdr_enc_mon,
+ .p_encode = (kxdreproc_t)nsm_xdr_enc_mon,
.p_decode = (kxdrproc_t)xdr_dec_stat_res,
.p_arglen = SM_mon_sz,
.p_replen = SM_monres_sz,
@@ -533,7 +525,7 @@
},
[NSMPROC_UNMON] = {
.p_proc = NSMPROC_UNMON,
- .p_encode = (kxdrproc_t)xdr_enc_unmon,
+ .p_encode = (kxdreproc_t)nsm_xdr_enc_unmon,
.p_decode = (kxdrproc_t)xdr_dec_stat,
.p_arglen = SM_mon_id_sz,
.p_replen = SM_unmonres_sz,