lockd: Update the NLMv4 FREE_ALL arguments decoder to use struct xdr_stream

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

Author: chucklever

fs/lockd/xdr4.c

@@ -309,6 +309,21 @@ nlm4svc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
 	return 1;
 }
 
+int
+nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
+{
+	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
+	struct nlm_args *argp = rqstp->rq_argp;
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
+		return 0;
+	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
+		return 0;
+
+	return 1;
+}
+
 int
 nlm4svc_encode_testres(struct svc_rqst *rqstp, __be32 *p)
 {
@@ -342,19 +357,6 @@ nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p)
 	return xdr_ressize_check(rqstp, p);
 }
 
-int
-nlm4svc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	struct nlm_lock	*lock = &argp->lock;
-
-	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
-					    &lock->len, NLM_MAXSTRLEN)))
-		return 0;
-	argp->state = ntohl(*p++);
-	return xdr_argsize_check(rqstp, p);
-}
-
 int
 nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p)
 {