[PATCH] RPC: get rid of xprt->stream
Now we can fix up the last few places that use the "xprt->stream" variable, and get rid of it from the rpc_xprt structure. Test-plan: Destructive testing (unplugging the network temporarily). Connectathon with UDP and TCP. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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@ -173,11 +173,10 @@ nlm_bind_host(struct nlm_host *host)
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/* If we've already created an RPC client, check whether
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* RPC rebind is required
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* Note: why keep rebinding if we're on a tcp connection?
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*/
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if ((clnt = host->h_rpcclnt) != NULL) {
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xprt = clnt->cl_xprt;
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if (!xprt->stream && time_after_eq(jiffies, host->h_nextrebind)) {
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if (time_after_eq(jiffies, host->h_nextrebind)) {
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clnt->cl_port = 0;
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host->h_nextrebind = jiffies + NLM_HOST_REBIND;
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dprintk("lockd: next rebind in %ld jiffies\n",
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@ -168,8 +168,7 @@ struct rpc_xprt {
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unsigned long state; /* transport state */
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unsigned char shutdown : 1, /* being shut down */
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nocong : 1, /* no congestion control */
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resvport : 1, /* use a reserved port */
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stream : 1; /* TCP */
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resvport : 1; /* use a reserved port */
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/*
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* XID
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@ -630,8 +630,7 @@ void xprt_transmit(struct rpc_task *task)
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case -ENOTCONN:
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return;
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default:
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if (xprt->stream)
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xprt_disconnect(xprt);
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break;
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}
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xprt_release_write(xprt, task);
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return;
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@ -356,6 +356,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
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default:
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dprintk("RPC: sendmsg returned unrecognized error %d\n",
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-status);
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xprt_disconnect(xprt);
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break;
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}
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@ -826,19 +827,17 @@ static void xs_tcp_write_space(struct sock *sk)
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}
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/**
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* xs_set_buffer_size - set send and receive limits
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* xs_udp_set_buffer_size - set send and receive limits
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* @xprt: generic transport
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*
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* Set socket send and receive limits based on the
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* sndsize and rcvsize fields in the generic transport
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* structure. This applies only to UDP sockets.
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* structure.
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*/
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static void xs_set_buffer_size(struct rpc_xprt *xprt)
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static void xs_udp_set_buffer_size(struct rpc_xprt *xprt)
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{
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struct sock *sk = xprt->inet;
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if (xprt->stream)
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return;
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if (xprt->rcvsize) {
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sk->sk_userlocks |= SOCK_RCVBUF_LOCK;
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sk->sk_rcvbuf = xprt->rcvsize * xprt->max_reqs * 2;
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@ -850,6 +849,17 @@ static void xs_set_buffer_size(struct rpc_xprt *xprt)
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}
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}
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/**
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* xs_tcp_set_buffer_size - set send and receive limits
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* @xprt: generic transport
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*
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* Nothing to do for TCP.
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*/
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static void xs_tcp_set_buffer_size(struct rpc_xprt *xprt)
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{
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return;
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}
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static int xs_bindresvport(struct rpc_xprt *xprt, struct socket *sock)
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{
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struct sockaddr_in myaddr = {
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@ -928,7 +938,7 @@ static void xs_udp_connect_worker(void *args)
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write_unlock_bh(&sk->sk_callback_lock);
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}
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xs_set_buffer_size(xprt);
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xs_udp_set_buffer_size(xprt);
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status = 0;
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out:
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xprt_wake_pending_tasks(xprt, status);
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@ -1034,7 +1044,7 @@ static void xs_connect(struct rpc_task *task)
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}
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static struct rpc_xprt_ops xs_udp_ops = {
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.set_buffer_size = xs_set_buffer_size,
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.set_buffer_size = xs_udp_set_buffer_size,
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.connect = xs_connect,
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.send_request = xs_udp_send_request,
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.close = xs_close,
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@ -1042,7 +1052,7 @@ static struct rpc_xprt_ops xs_udp_ops = {
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};
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static struct rpc_xprt_ops xs_tcp_ops = {
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.set_buffer_size = xs_set_buffer_size,
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.set_buffer_size = xs_tcp_set_buffer_size,
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.connect = xs_connect,
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.send_request = xs_tcp_send_request,
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.close = xs_close,
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@ -1074,7 +1084,6 @@ int xs_setup_udp(struct rpc_xprt *xprt, struct rpc_timeout *to)
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xprt->prot = IPPROTO_UDP;
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xprt->port = XS_MAX_RESVPORT;
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xprt->tsh_size = 0;
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xprt->stream = 0;
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xprt->nocong = 0;
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xprt->cwnd = RPC_INITCWND;
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xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0;
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@ -1115,7 +1124,6 @@ int xs_setup_tcp(struct rpc_xprt *xprt, struct rpc_timeout *to)
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xprt->prot = IPPROTO_TCP;
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xprt->port = XS_MAX_RESVPORT;
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xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32);
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xprt->stream = 1;
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xprt->nocong = 1;
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xprt->cwnd = RPC_MAXCWND(xprt);
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xprt->resvport = capable(CAP_NET_BIND_SERVICE) ? 1 : 0;
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