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From: Chuck Lever <chuck.lever@oracle.com>
To: bfields@fieldses.org
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH 27/29] lockd: Update the NLMv4 TEST results encoder to use struct xdr_stream
Date: Thu, 03 Jun 2021 16:53:17 -0400	[thread overview]
Message-ID: <162275359705.32691.13005801803619129247.stgit@klimt.1015granger.net> (raw)
In-Reply-To: <162275337584.32691.3943139351165347555.stgit@klimt.1015granger.net>

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/lockd/xdr4.c |   74 +++++++++++++++++++++++++++----------------------------
 1 file changed, 36 insertions(+), 38 deletions(-)

diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index 0db142e203d2..9b8a7afb935c 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -20,8 +20,6 @@
 
 #include "svcxdr.h"
 
-#define NLMDBG_FACILITY		NLMDBG_XDR
-
 static inline loff_t
 s64_to_loff_t(__s64 offset)
 {
@@ -110,44 +108,44 @@ svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock)
 	return true;
 }
 
-/*
- * Encode result of a TEST/TEST_MSG call
- */
-static __be32 *
-nlm4_encode_testres(__be32 *p, struct nlm_res *resp)
+static bool
+svcxdr_encode_holder(struct xdr_stream *xdr, const struct nlm_lock *lock)
 {
-	s64		start, len;
+	const struct file_lock *fl = &lock->fl;
+	s64 start, len;
 
-	dprintk("xdr: before encode_testres (p %p resp %p)\n", p, resp);
-	if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
-		return NULL;
-	*p++ = resp->status;
+	/* exclusive */
+	if (xdr_stream_encode_bool(xdr, fl->fl_type != F_RDLCK) < 0)
+		return false;
+	if (xdr_stream_encode_u32(xdr, lock->svid) < 0)
+		return false;
+	if (!svcxdr_encode_owner(xdr, &lock->oh))
+		return false;
+	start = loff_t_to_s64(fl->fl_start);
+	if (fl->fl_end == OFFSET_MAX)
+		len = 0;
+	else
+		len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
+	if (xdr_stream_encode_u64(xdr, start) < 0)
+		return false;
+	if (xdr_stream_encode_u64(xdr, len) < 0)
+		return false;
+
+	return true;
+}
 
-	if (resp->status == nlm_lck_denied) {
-		struct file_lock	*fl = &resp->lock.fl;
-
-		*p++ = (fl->fl_type == F_RDLCK)? xdr_zero : xdr_one;
-		*p++ = htonl(resp->lock.svid);
-
-		/* Encode owner handle. */
-		if (!(p = xdr_encode_netobj(p, &resp->lock.oh)))
-			return NULL;
-
-		start = loff_t_to_s64(fl->fl_start);
-		if (fl->fl_end == OFFSET_MAX)
-			len = 0;
-		else
-			len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
-		
-		p = xdr_encode_hyper(p, start);
-		p = xdr_encode_hyper(p, len);
-		dprintk("xdr: encode_testres (status %u pid %d type %d start %Ld end %Ld)\n",
-			resp->status, (int)resp->lock.svid, fl->fl_type,
-			(long long)fl->fl_start,  (long long)fl->fl_end);
+static bool
+svcxdr_encode_testrply(struct xdr_stream *xdr, const struct nlm_res *resp)
+{
+	if (!svcxdr_encode_stats(xdr, resp->status))
+		return false;
+	switch (resp->status) {
+	case nlm_lck_denied:
+		if (!svcxdr_encode_holder(xdr, &resp->lock))
+			return false;
 	}
 
-	dprintk("xdr: after encode_testres (p %p resp %p)\n", p, resp);
-	return p;
+	return true;
 }
 
 
@@ -338,11 +336,11 @@ nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p)
 int
 nlm4svc_encode_testres(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_testres(p, resp)))
-		return 0;
-	return xdr_ressize_check(rqstp, p);
+	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
+		svcxdr_encode_testrply(xdr, resp);
 }
 
 int



  parent reply	other threads:[~2021-06-03 20:53 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-03 20:50 [PATCH 00/29] XDR overhaul for server-side lockd Chuck Lever
2021-06-03 20:50 ` [PATCH 01/29] lockd: Remove stale comments Chuck Lever
2021-06-03 20:50 ` [PATCH 02/29] lockd: Create a simplified .vs_dispatch method for NLM requests Chuck Lever
2021-06-03 20:50 ` [PATCH 03/29] lockd: Common NLM XDR helpers Chuck Lever
2021-06-03 20:50 ` [PATCH 04/29] lockd: Update the NLMv1 void argument decoder to use struct xdr_stream Chuck Lever
2021-06-03 20:51 ` [PATCH 05/29] lockd: Update the NLMv1 TEST arguments " Chuck Lever
2021-06-03 20:51 ` [PATCH 06/29] lockd: Update the NLMv1 LOCK " Chuck Lever
2021-06-03 20:51 ` [PATCH 07/29] lockd: Update the NLMv1 CANCEL " Chuck Lever
2021-06-03 20:51 ` [PATCH 08/29] lockd: Update the NLMv1 UNLOCK " Chuck Lever
2021-06-03 20:51 ` [PATCH 09/29] lockd: Update the NLMv1 nlm_res " Chuck Lever
2021-06-03 20:51 ` [PATCH 10/29] lockd: Update the NLMv1 SM_NOTIFY " Chuck Lever
2021-06-03 20:51 ` [PATCH 11/29] lockd: Update the NLMv1 SHARE " Chuck Lever
2021-06-03 20:51 ` [PATCH 12/29] lockd: Update the NLMv1 FREE_ALL " Chuck Lever
2021-06-03 20:51 ` [PATCH 13/29] lockd: Update the NLMv1 void results encoder " Chuck Lever
2021-06-03 20:51 ` [PATCH 14/29] lockd: Update the NLMv1 TEST " Chuck Lever
2021-06-03 20:52 ` [PATCH 15/29] lockd: Update the NLMv1 nlm_res " Chuck Lever
2021-06-03 20:52 ` [PATCH 16/29] lockd: Update the NLMv1 SHARE " Chuck Lever
2021-06-03 20:52 ` [PATCH 17/29] lockd: Update the NLMv4 void arguments decoder " Chuck Lever
2021-06-03 20:52 ` [PATCH 18/29] lockd: Update the NLMv4 TEST " Chuck Lever
2021-06-03 20:52 ` [PATCH 19/29] lockd: Update the NLMv4 LOCK " Chuck Lever
2021-06-03 20:52 ` [PATCH 20/29] lockd: Update the NLMv4 CANCEL " Chuck Lever
2021-06-03 20:52 ` [PATCH 21/29] lockd: Update the NLMv4 UNLOCK " Chuck Lever
2021-06-03 20:52 ` [PATCH 22/29] lockd: Update the NLMv4 nlm_res " Chuck Lever
2021-06-03 20:52 ` [PATCH 23/29] lockd: Update the NLMv4 SM_NOTIFY " Chuck Lever
2021-06-03 20:52 ` [PATCH 24/29] lockd: Update the NLMv4 SHARE " Chuck Lever
2021-06-03 20:53 ` [PATCH 25/29] lockd: Update the NLMv4 FREE_ALL " Chuck Lever
2021-06-03 20:53 ` [PATCH 26/29] lockd: Update the NLMv4 void results encoder " Chuck Lever
2021-06-03 20:53 ` Chuck Lever [this message]
2021-06-03 20:53 ` [PATCH 28/29] lockd: Update the NLMv4 nlm_res " Chuck Lever
2021-06-03 20:53 ` [PATCH 29/29] lockd: Update the NLMv4 SHARE " Chuck Lever
2021-06-16 14:53 ` [PATCH 00/29] XDR overhaul for server-side lockd J. Bruce Fields

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