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SUNRPC: Refactor a part of socket connect logic into a helper function 

Finishing a socket connect is the same for IPv4 and IPv6, so split it out
into a helper.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2007-08-06 11:57:38 -04:00 committed by Trond Myklebust
parent 90058d37c3
commit 16be2d20d9
1 changed files with 72 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

131
net/sunrpc/xprtsock.c
View File

@ -1323,6 +1323,35 @@ static inline void xs_reclassify_socket(struct socket *sock)
}
#endif
static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
{
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (!transport->inet) {
struct sock *sk = sock->sk;
write_lock_bh(&sk->sk_callback_lock);
sk->sk_user_data = xprt;
transport->old_data_ready = sk->sk_data_ready;
transport->old_state_change = sk->sk_state_change;
transport->old_write_space = sk->sk_write_space;
sk->sk_data_ready = xs_udp_data_ready;
sk->sk_write_space = xs_udp_write_space;
sk->sk_no_check = UDP_CSUM_NORCV;
sk->sk_allocation = GFP_ATOMIC;
xprt_set_connected(xprt);
/* Reset to new socket */
transport->sock = sock;
transport->inet = sk;
write_unlock_bh(&sk->sk_callback_lock);
}
xs_udp_do_set_buffer_size(xprt);
}
/**
* xs_udp_connect_worker - set up a UDP socket
* @work: RPC transport to connect
@ -1357,29 +1386,7 @@ static void xs_udp_connect_worker(struct work_struct *work)
dprintk("RPC: worker connecting xprt %p to address: %s\n",
xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
if (!transport->inet) {
struct sock *sk = sock->sk;
write_lock_bh(&sk->sk_callback_lock);
sk->sk_user_data = xprt;
transport->old_data_ready = sk->sk_data_ready;
transport->old_state_change = sk->sk_state_change;
transport->old_write_space = sk->sk_write_space;
sk->sk_data_ready = xs_udp_data_ready;
sk->sk_write_space = xs_udp_write_space;
sk->sk_no_check = UDP_CSUM_NORCV;
sk->sk_allocation = GFP_ATOMIC;
xprt_set_connected(xprt);
/* Reset to new socket */
transport->sock = sock;
transport->inet = sk;
write_unlock_bh(&sk->sk_callback_lock);
}
xs_udp_do_set_buffer_size(xprt);
xs_udp_finish_connecting(xprt, sock);
status = 0;
out:
xprt_wake_pending_tasks(xprt, status);
@ -1410,42 +1417,9 @@ static void xs_tcp_reuse_connection(struct rpc_xprt *xprt)
result);
}
/**
* xs_tcp_connect_worker - connect a TCP socket to a remote endpoint
* @work: RPC transport to connect
*
* Invoked by a work queue tasklet.
*/
static void xs_tcp_connect_worker(struct work_struct *work)
static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
{
struct sock_xprt *transport =
container_of(work, struct sock_xprt, connect_worker.work);
struct rpc_xprt *xprt = &transport->xprt;
struct socket *sock = transport->sock;
int err, status = -EIO;
if (xprt->shutdown || !xprt_bound(xprt))
goto out;
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);
goto out;
}
xs_reclassify_socket(sock);
if (xs_bind4(transport, sock)) {
sock_release(sock);
goto out;
}
} else
/* "close" the socket, preserving the local port */
xs_tcp_reuse_connection(xprt);
dprintk("RPC: worker connecting xprt %p to address: %s\n",
xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (!transport->inet) {
struct sock *sk = sock->sk;
@ -1479,8 +1453,47 @@ static void xs_tcp_connect_worker(struct work_struct *work)
/* Tell the socket layer to start connecting... */
xprt->stat.connect_count++;
xprt->stat.connect_start = jiffies;
status = kernel_connect(sock, (struct sockaddr *) &xprt->addr,
return kernel_connect(sock, (struct sockaddr *) &xprt->addr,
xprt->addrlen, O_NONBLOCK);
}
/**
* xs_tcp_connect_worker - connect a TCP socket to a remote endpoint
* @work: RPC transport to connect
*
* Invoked by a work queue tasklet.
*/
static void xs_tcp_connect_worker(struct work_struct *work)
{
struct sock_xprt *transport =
container_of(work, struct sock_xprt, connect_worker.work);
struct rpc_xprt *xprt = &transport->xprt;
struct socket *sock = transport->sock;
int err, status = -EIO;
if (xprt->shutdown || !xprt_bound(xprt))
goto out;
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);
goto out;
}
xs_reclassify_socket(sock);
if (xs_bind4(transport, sock) < 0) {
sock_release(sock);
goto out;
}
} else
/* "close" the socket, preserving the local port */
xs_tcp_reuse_connection(xprt);
dprintk("RPC: worker connecting xprt %p to address: %s\n",
xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
status = xs_tcp_finish_connecting(xprt, sock);
dprintk("RPC: %p connect status %d connected %d sock state %d\n",
xprt, -status, xprt_connected(xprt),
sock->sk->sk_state);