SUNRPC: Remove sock and inet fields from rpc_xprt
The "sock" and "inet" fields are socket-specific. Move them to a private
data structure maintained entirely within net/sunrpc/xprtsock.c
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index dc4a21f..0f455fd 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -127,6 +127,12 @@
struct sock_xprt {
struct rpc_xprt xprt;
+
+ /*
+ * Network layer
+ */
+ struct socket * sock;
+ struct sock * inet;
};
static void xs_format_peer_addresses(struct rpc_xprt *xprt)
@@ -285,19 +291,20 @@
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
dprintk("RPC: %4d xmit incomplete (%u left of %u)\n",
task->tk_pid, req->rq_slen - req->rq_bytes_sent,
req->rq_slen);
- if (test_bit(SOCK_ASYNC_NOSPACE, &xprt->sock->flags)) {
+ if (test_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags)) {
/* Protect against races with write_space */
spin_lock_bh(&xprt->transport_lock);
/* Don't race with disconnect */
if (!xprt_connected(xprt))
task->tk_status = -ENOTCONN;
- else if (test_bit(SOCK_NOSPACE, &xprt->sock->flags))
+ else if (test_bit(SOCK_NOSPACE, &transport->sock->flags))
xprt_wait_for_buffer_space(task);
spin_unlock_bh(&xprt->transport_lock);
@@ -321,6 +328,7 @@
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct xdr_buf *xdr = &req->rq_snd_buf;
int status;
@@ -329,8 +337,10 @@
req->rq_svec->iov_len);
req->rq_xtime = jiffies;
- status = xs_sendpages(xprt->sock, (struct sockaddr *) &xprt->addr,
- xprt->addrlen, xdr, req->rq_bytes_sent);
+ status = xs_sendpages(transport->sock,
+ (struct sockaddr *) &xprt->addr,
+ xprt->addrlen, xdr,
+ req->rq_bytes_sent);
dprintk("RPC: xs_udp_send_request(%u) = %d\n",
xdr->len - req->rq_bytes_sent, status);
@@ -386,6 +396,7 @@
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = req->rq_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct xdr_buf *xdr = &req->rq_snd_buf;
int status, retry = 0;
@@ -400,8 +411,8 @@
* called sendmsg(). */
while (1) {
req->rq_xtime = jiffies;
- status = xs_sendpages(xprt->sock, NULL, 0, xdr,
- req->rq_bytes_sent);
+ status = xs_sendpages(transport->sock,
+ NULL, 0, xdr, req->rq_bytes_sent);
dprintk("RPC: xs_tcp_send_request(%u) = %d\n",
xdr->len - req->rq_bytes_sent, status);
@@ -479,8 +490,9 @@
*/
static void xs_close(struct rpc_xprt *xprt)
{
- struct socket *sock = xprt->sock;
- struct sock *sk = xprt->inet;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct socket *sock = transport->sock;
+ struct sock *sk = transport->inet;
if (!sk)
goto clear_close_wait;
@@ -488,8 +500,8 @@
dprintk("RPC: xs_close xprt %p\n", xprt);
write_lock_bh(&sk->sk_callback_lock);
- xprt->inet = NULL;
- xprt->sock = NULL;
+ transport->inet = NULL;
+ transport->sock = NULL;
sk->sk_user_data = NULL;
sk->sk_data_ready = xprt->old_data_ready;
@@ -946,7 +958,8 @@
static void xs_udp_do_set_buffer_size(struct rpc_xprt *xprt)
{
- struct sock *sk = xprt->inet;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct sock *sk = transport->inet;
if (xprt->rcvsize) {
sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
@@ -1062,7 +1075,8 @@
static void xs_udp_connect_worker(void *args)
{
struct rpc_xprt *xprt = (struct rpc_xprt *) args;
- struct socket *sock = xprt->sock;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct socket *sock = transport->sock;
int err, status = -EIO;
if (xprt->shutdown || !xprt_bound(xprt))
@@ -1084,7 +1098,7 @@
dprintk("RPC: worker connecting xprt %p to address: %s\n",
xprt, xs_print_peer_address(xprt, RPC_DISPLAY_ALL));
- if (!xprt->inet) {
+ if (!transport->inet) {
struct sock *sk = sock->sk;
write_lock_bh(&sk->sk_callback_lock);
@@ -1101,8 +1115,8 @@
xprt_set_connected(xprt);
/* Reset to new socket */
- xprt->sock = sock;
- xprt->inet = sk;
+ transport->sock = sock;
+ transport->inet = sk;
write_unlock_bh(&sk->sk_callback_lock);
}
@@ -1120,7 +1134,7 @@
static void xs_tcp_reuse_connection(struct rpc_xprt *xprt)
{
int result;
- struct socket *sock = xprt->sock;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
struct sockaddr any;
dprintk("RPC: disconnecting xprt %p to reuse port\n", xprt);
@@ -1131,7 +1145,7 @@
*/
memset(&any, 0, sizeof(any));
any.sa_family = AF_UNSPEC;
- result = kernel_connect(sock, &any, sizeof(any), 0);
+ result = kernel_connect(transport->sock, &any, sizeof(any), 0);
if (result)
dprintk("RPC: AF_UNSPEC connect return code %d\n",
result);
@@ -1146,13 +1160,14 @@
static void xs_tcp_connect_worker(void *args)
{
struct rpc_xprt *xprt = (struct rpc_xprt *)args;
- struct socket *sock = xprt->sock;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct socket *sock = transport->sock;
int err, status = -EIO;
if (xprt->shutdown || !xprt_bound(xprt))
goto out;
- if (!xprt->sock) {
+ if (!sock) {
/* start from scratch */
if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) {
dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
@@ -1170,7 +1185,7 @@
dprintk("RPC: worker connecting xprt %p to address: %s\n",
xprt, xs_print_peer_address(xprt, RPC_DISPLAY_ALL));
- if (!xprt->inet) {
+ if (!transport->inet) {
struct sock *sk = sock->sk;
write_lock_bh(&sk->sk_callback_lock);
@@ -1193,8 +1208,8 @@
xprt_clear_connected(xprt);
/* Reset to new socket */
- xprt->sock = sock;
- xprt->inet = sk;
+ transport->sock = sock;
+ transport->inet = sk;
write_unlock_bh(&sk->sk_callback_lock);
}
@@ -1243,11 +1258,12 @@
static void xs_connect(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (xprt_test_and_set_connecting(xprt))
return;
- if (xprt->sock != NULL) {
+ if (transport->sock != NULL) {
dprintk("RPC: xs_connect delayed xprt %p for %lu seconds\n",
xprt, xprt->reestablish_timeout / HZ);
schedule_delayed_work(&xprt->connect_worker,