Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: [PATCH 16/29] lockd: Update the NLMv1 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 16:52:10 -0400
Message-ID: <162275353062.32691.6997690954350199852.stgit@klimt.1015granger.net>
In-Reply-To: <162275337584.32691.3943139351165347555.stgit@klimt.1015granger.net>
References: <162275337584.32691.3943139351165347555.stgit@klimt.1015granger.net>
User-Agent: StGit/1.1
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Precedence: bulk

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/lockd/xdr.c |   25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 4fb6090bc915..9235e60b1769 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -41,18 +41,6 @@ loff_t_to_s32(loff_t offset)
 	return res;
 }
 
-/*
- * XDR functions for basic NLM types
- */
-static inline __be32 *
-nlm_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
@@ -361,11 +349,16 @@ nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p)
 int
 nlmsvc_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 = nlm_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;
 }