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Subject: [PATCH 29/29] lockd: Update the NLMv4 SHARE results encoder to use
 struct xdr_stream
From:   Chuck Lever <chuck.lever@oracle.com>
To:     bfields@fieldses.org
Cc:     linux-nfs@vger.kernel.org
Date:   Thu, 03 Jun 2021 16:53:29 -0400
Message-ID: <162275360914.32691.6053481644981091103.stgit@klimt.1015granger.net>
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Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/lockd/xdr4.c |   22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index efdede71b951..98e957e4566c 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -40,15 +40,6 @@ loff_t_to_s64(loff_t offset)
 	return res;
 }
 
-static __be32 *
-nlm4_encode_cookie(__be32 *p, struct nlm_cookie *c)
-{
-	*p++ = htonl(c->len);
-	memcpy(p, c->data, c->len);
-	p+=XDR_QUADLEN(c->len);
-	return p;
-}
-
 /*
  * NLM file handles are defined by specification to be a variable-length
  * XDR opaque no longer than 1024 bytes. However, this implementation
@@ -356,11 +347,16 @@ nlm4svc_encode_res(struct svc_rqst *rqstp, __be32 *p)
 int
 nlm4svc_encode_shareres(struct svc_rqst *rqstp, __be32 *p)
 {
+	struct xdr_stream *xdr = &rqstp->rq_res_stream;
 	struct nlm_res *resp = rqstp->rq_resp;
 
-	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
+	if (!svcxdr_encode_cookie(xdr, &resp->cookie))
 		return 0;
-	*p++ = resp->status;
-	*p++ = xdr_zero;		/* sequence argument */
-	return xdr_ressize_check(rqstp, p);
+	if (!svcxdr_encode_stats(xdr, resp->status))
+		return 0;
+	/* sequence */
+	if (xdr_stream_encode_u32(xdr, 0) < 0)
+		return 0;
+
+	return 1;
 }