2020-05-01 17:38:41

by Chuck Lever

[permalink] [raw]
Subject: [PATCH v1 5/8] SUNRPC: Clean up: Rename svc_sock::sk_reclen

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 <[email protected]>
---
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));