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Subject: [PATCH v1 5/8] SUNRPC: Clean up: Rename svc_sock::sk_reclen
From:   Chuck Lever <chuck.lever@oracle.com>
To:     linux-nfs@vger.kernel.org
Date:   Fri, 01 May 2020 13:38:11 -0400
Message-ID: <20200501173811.3868.85517.stgit@klimt.1015granger.net>
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References: <20200501173526.3868.96971.stgit@klimt.1015granger.net>
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I find the name of the svc_sock::sk_reclen field confusing, so I've
changed it to better reflect its function. This field is not read
directly to get the record length. Rather, it is a buffer containing
a record marker that needs to be decoded.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 include/linux/sunrpc/svcsock.h |    6 +++---
 net/sunrpc/svcsock.c           |    6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index 771baadaee9d..b7ac7fe68306 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -28,7 +28,7 @@ struct svc_sock {
 
 	/* private TCP part */
 	/* On-the-wire fragment header: */
-	__be32			sk_reclen;
+	__be32			sk_marker;
 	/* As we receive a record, this includes the length received so
 	 * far (including the fragment header): */
 	u32			sk_tcplen;
@@ -41,12 +41,12 @@ struct svc_sock {
 
 static inline u32 svc_sock_reclen(struct svc_sock *svsk)
 {
-	return ntohl(svsk->sk_reclen) & RPC_FRAGMENT_SIZE_MASK;
+	return be32_to_cpu(svsk->sk_marker) & RPC_FRAGMENT_SIZE_MASK;
 }
 
 static inline u32 svc_sock_final_rec(struct svc_sock *svsk)
 {
-	return ntohl(svsk->sk_reclen) & RPC_LAST_STREAM_FRAGMENT;
+	return be32_to_cpu(svsk->sk_marker) & RPC_LAST_STREAM_FRAGMENT;
 }
 
 /*
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 4ac1180c6306..d63b21f3f207 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -841,7 +841,7 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp)
 		struct kvec	iov;
 
 		want = sizeof(rpc_fraghdr) - svsk->sk_tcplen;
-		iov.iov_base = ((char *) &svsk->sk_reclen) + svsk->sk_tcplen;
+		iov.iov_base = ((char *)&svsk->sk_marker) + svsk->sk_tcplen;
 		iov.iov_len  = want;
 		len = svc_recvfrom(rqstp, &iov, 1, want, 0);
 		if (len < 0)
@@ -938,7 +938,7 @@ static void svc_tcp_fragment_received(struct svc_sock *svsk)
 		svc_sock_final_rec(svsk) ? "final" : "nonfinal",
 		svc_sock_reclen(svsk));
 	svsk->sk_tcplen = 0;
-	svsk->sk_reclen = 0;
+	svsk->sk_marker = xdr_zero;
 }
 
 /*
@@ -1154,7 +1154,7 @@ static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv)
 		sk->sk_data_ready = svc_data_ready;
 		sk->sk_write_space = svc_write_space;
 
-		svsk->sk_reclen = 0;
+		svsk->sk_marker = xdr_zero;
 		svsk->sk_tcplen = 0;
 		svsk->sk_datalen = 0;
 		memset(&svsk->sk_pages[0], 0, sizeof(svsk->sk_pages));