SUNRPC: New xdr_streams XDR decoder API
Now that all client-side XDR decoder routines use xdr_streams, there
should be no need to support the legacy calling sequence [rpc_rqst *,
__be32 *, RPC res *] anywhere. We can construct an xdr_stream in the
generic RPC code, instead of in each decoder function.
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/clntxdr.c b/fs/lockd/clntxdr.c
index c6fda8f..180ac34 100644
--- a/fs/lockd/clntxdr.c
+++ b/fs/lockd/clntxdr.c
@@ -527,17 +527,16 @@
return error;
}
-static int nlm_xdr_dec_testres(struct rpc_rqst *req, __be32 *p,
+static int nlm_xdr_dec_testres(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
struct nlm_res *result)
{
- struct xdr_stream xdr;
int error;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- error = decode_cookie(&xdr, &result->cookie);
+ error = decode_cookie(xdr, &result->cookie);
if (unlikely(error))
goto out;
- error = decode_nlm_testrply(&xdr, result);
+ error = decode_nlm_testrply(xdr, result);
out:
return error;
}
@@ -548,17 +547,16 @@
* nlm_stat stat;
* };
*/
-static int nlm_xdr_dec_res(struct rpc_rqst *req, __be32 *p,
+static int nlm_xdr_dec_res(struct rpc_rqst *req,
+ struct xdr_stream *xdr,
struct nlm_res *result)
{
- struct xdr_stream xdr;
int error;
- xdr_init_decode(&xdr, &req->rq_rcv_buf, p);
- error = decode_cookie(&xdr, &result->cookie);
+ error = decode_cookie(xdr, &result->cookie);
if (unlikely(error))
goto out;
- error = decode_nlm_stat(&xdr, &result->status);
+ error = decode_nlm_stat(xdr, &result->status);
out:
return error;
}
@@ -573,7 +571,7 @@
[NLMPROC_##proc] = { \
.p_proc = NLMPROC_##proc, \
.p_encode = (kxdreproc_t)nlm_xdr_enc_##argtype, \
- .p_decode = (kxdrproc_t)nlm_xdr_dec_##restype, \
+ .p_decode = (kxdrdproc_t)nlm_xdr_dec_##restype, \
.p_arglen = NLM_##argtype##_sz, \
.p_replen = NLM_##restype##_sz, \
.p_statidx = NLMPROC_##proc, \