void (*old_data_ready)(struct sock *, int);
void (*old_state_change)(struct sock *);
void (*old_write_space)(struct sock *);
- void (*old_error_report)(struct sock *);
};
/*
dprintk("RPC: sendmsg returned unrecognized error %d\n",
-status);
case -ECONNRESET:
- case -EPIPE:
xs_tcp_shutdown(xprt);
case -ECONNREFUSED:
case -ENOTCONN:
+ case -EPIPE:
clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags);
}
transport->old_data_ready = sk->sk_data_ready;
transport->old_state_change = sk->sk_state_change;
transport->old_write_space = sk->sk_write_space;
- transport->old_error_report = sk->sk_error_report;
}
static void xs_restore_old_callbacks(struct sock_xprt *transport, struct sock *sk)
sk->sk_data_ready = transport->old_data_ready;
sk->sk_state_change = transport->old_state_change;
sk->sk_write_space = transport->old_write_space;
- sk->sk_error_report = transport->old_error_report;
}
static void xs_reset_transport(struct sock_xprt *transport)
if (skb == NULL)
goto out;
- if (xprt->shutdown)
- goto dropit;
-
repsize = skb->len - sizeof(rpc_fraghdr);
if (repsize < 4) {
dprintk("RPC: impossible RPC reply size %d\n", repsize);
if ((skb = skb_recv_datagram(sk, 0, 1, &err)) == NULL)
goto out;
- if (xprt->shutdown)
- goto dropit;
-
repsize = skb->len - sizeof(struct udphdr);
if (repsize < 4) {
dprintk("RPC: impossible RPC reply size %d!\n", repsize);
read_unlock_bh(&sk->sk_callback_lock);
}
+/*
+ * Helper function to force a TCP close if the server is sending
+ * junk and/or it has put us in CLOSE_WAIT
+ */
+static void xs_tcp_force_close(struct rpc_xprt *xprt)
+{
+ set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
+ xprt_force_disconnect(xprt);
+}
+
static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
{
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
/* Sanity check of the record length */
if (unlikely(transport->tcp_reclen < 8)) {
dprintk("RPC: invalid TCP record fragment length\n");
- xprt_force_disconnect(xprt);
+ xs_tcp_force_close(xprt);
return;
}
dprintk("RPC: reading TCP record fragment of length %d\n",
break;
default:
dprintk("RPC: invalid request message type\n");
- xprt_force_disconnect(&transport->xprt);
+ xs_tcp_force_close(&transport->xprt);
}
xs_tcp_check_fraghdr(transport);
}
read_lock_bh(&sk->sk_callback_lock);
if (!(xprt = xprt_from_sock(sk)))
goto out;
- if (xprt->shutdown)
- goto out;
-
/* Any data means we had a useful conversation, so
* the we don't need to delay the next reconnect
*/
xprt_clear_connecting(xprt);
}
-static void xs_sock_mark_closed(struct rpc_xprt *xprt)
+static void xs_sock_reset_connection_flags(struct rpc_xprt *xprt)
{
smp_mb__before_clear_bit();
+ clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
+ clear_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
clear_bit(XPRT_CLOSING, &xprt->state);
smp_mb__after_clear_bit();
+}
+
+static void xs_sock_mark_closed(struct rpc_xprt *xprt)
+{
+ xs_sock_reset_connection_flags(xprt);
/* Mark transport as closed and wake up all pending tasks */
xprt_disconnect_done(xprt);
}
break;
case TCP_CLOSE_WAIT:
/* The server initiated a shutdown of the socket */
- xprt_force_disconnect(xprt);
xprt->connect_cookie++;
+ clear_bit(XPRT_CONNECTED, &xprt->state);
+ xs_tcp_force_close(xprt);
case TCP_CLOSING:
/*
* If the server closed down the connection, make sure that
read_unlock_bh(&sk->sk_callback_lock);
}
-/**
- * xs_error_report - callback mainly for catching socket errors
- * @sk: socket
- */
-static void xs_error_report(struct sock *sk)
-{
- struct rpc_xprt *xprt;
-
- read_lock_bh(&sk->sk_callback_lock);
- if (!(xprt = xprt_from_sock(sk)))
- goto out;
- dprintk("RPC: %s client %p...\n"
- "RPC: error %d\n",
- __func__, xprt, sk->sk_err);
- xprt_wake_pending_tasks(xprt, -EAGAIN);
-out:
- read_unlock_bh(&sk->sk_callback_lock);
-}
-
static void xs_write_space(struct sock *sk)
{
struct socket *sock;
sk->sk_user_data = xprt;
sk->sk_data_ready = xs_local_data_ready;
sk->sk_write_space = xs_udp_write_space;
- sk->sk_error_report = xs_error_report;
sk->sk_allocation = GFP_ATOMIC;
xprt_clear_connected(xprt);
struct socket *sock;
int status = -EIO;
- if (xprt->shutdown)
- goto out;
-
current->flags |= PF_FSTRANS;
clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
sk->sk_user_data = xprt;
sk->sk_data_ready = xs_udp_data_ready;
sk->sk_write_space = xs_udp_write_space;
- sk->sk_error_report = xs_error_report;
sk->sk_no_check = UDP_CSUM_NORCV;
sk->sk_allocation = GFP_ATOMIC;
struct socket *sock = transport->sock;
int status = -EIO;
- if (xprt->shutdown)
- goto out;
-
current->flags |= PF_FSTRANS;
/* Start by resetting any existing state */
any.sa_family = AF_UNSPEC;
result = kernel_connect(transport->sock, &any, sizeof(any), 0);
if (!result)
- xs_sock_mark_closed(&transport->xprt);
- else
- dprintk("RPC: AF_UNSPEC connect return code %d\n",
- result);
+ xs_sock_reset_connection_flags(&transport->xprt);
+ dprintk("RPC: AF_UNSPEC connect return code %d\n", result);
}
static void xs_tcp_reuse_connection(struct sock_xprt *transport)
sk->sk_data_ready = xs_tcp_data_ready;
sk->sk_state_change = xs_tcp_state_change;
sk->sk_write_space = xs_tcp_write_space;
- sk->sk_error_report = xs_error_report;
sk->sk_allocation = GFP_ATOMIC;
/* socket options */
struct rpc_xprt *xprt = &transport->xprt;
int status = -EIO;
- if (xprt->shutdown)
- goto out;
-
current->flags |= PF_FSTRANS;
if (!sock) {
/* We're probably in TIME_WAIT. Get rid of existing socket,
* and retry
*/
- set_bit(XPRT_CONNECTION_CLOSE, &xprt->state);
- xprt_force_disconnect(xprt);
+ xs_tcp_force_close(xprt);
break;
case -ECONNREFUSED:
case -ECONNRESET:
static struct rpc_xprt_ops bc_tcp_ops = {
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xprt_release_xprt,
+ .alloc_slot = xprt_alloc_slot,
.rpcbind = xs_local_rpcbind,
.buf_alloc = bc_malloc,
.buf_free = bc_free,
projects / karo-tx-linux.git / blobdiff