@@ -42,6 +42,13 @@ struct sock_xprt {
flags;
} recv;
+ /*
+ * State of TCP transmit queue
+ */
+ struct {
+ u32 offset;
+ } xmit;
+
/*
* Connection of transports
*/
@@ -461,7 +461,7 @@ static int xs_nospace(struct rpc_task *task)
int ret = -EAGAIN;
dprintk("RPC: %5u xmit incomplete (%u left of %u)\n",
- task->tk_pid, req->rq_slen - req->rq_bytes_sent,
+ task->tk_pid, req->rq_slen - transport->xmit.offset,
req->rq_slen);
/* Protect against races with write_space */
@@ -528,19 +528,22 @@ static int xs_local_send_request(struct rpc_task *task)
req->rq_svec->iov_base, req->rq_svec->iov_len);
req->rq_xtime = ktime_get();
- status = xs_sendpages(transport->sock, NULL, 0, xdr, req->rq_bytes_sent,
+ status = xs_sendpages(transport->sock, NULL, 0, xdr,
+ transport->xmit.offset,
true, &sent);
dprintk("RPC: %s(%u) = %d\n",
- __func__, xdr->len - req->rq_bytes_sent, status);
+ __func__, xdr->len - transport->xmit.offset, status);
if (status == -EAGAIN && sock_writeable(transport->inet))
status = -ENOBUFS;
if (likely(sent > 0) || status == 0) {
- req->rq_bytes_sent += sent;
- req->rq_xmit_bytes_sent += sent;
+ transport->xmit.offset += sent;
+ req->rq_bytes_sent = transport->xmit.offset;
if (likely(req->rq_bytes_sent >= req->rq_slen)) {
+ req->rq_xmit_bytes_sent += transport->xmit.offset;
req->rq_bytes_sent = 0;
+ transport->xmit.offset = 0;
return 0;
}
status = -EAGAIN;
@@ -592,10 +595,10 @@ static int xs_udp_send_request(struct rpc_task *task)
return -ENOTCONN;
req->rq_xtime = ktime_get();
status = xs_sendpages(transport->sock, xs_addr(xprt), xprt->addrlen,
- xdr, req->rq_bytes_sent, true, &sent);
+ xdr, 0, true, &sent);
dprintk("RPC: xs_udp_send_request(%u) = %d\n",
- xdr->len - req->rq_bytes_sent, status);
+ xdr->len, status);
/* firewall is blocking us, don't return -EAGAIN or we end up looping */
if (status == -EPERM)
@@ -684,17 +687,20 @@ static int xs_tcp_send_request(struct rpc_task *task)
while (1) {
sent = 0;
status = xs_sendpages(transport->sock, NULL, 0, xdr,
- req->rq_bytes_sent, zerocopy, &sent);
+ transport->xmit.offset,
+ zerocopy, &sent);
dprintk("RPC: xs_tcp_send_request(%u) = %d\n",
- xdr->len - req->rq_bytes_sent, status);
+ xdr->len - transport->xmit.offset, status);
/* If we've sent the entire packet, immediately
* reset the count of bytes sent. */
- req->rq_bytes_sent += sent;
- req->rq_xmit_bytes_sent += sent;
+ transport->xmit.offset += sent;
+ req->rq_bytes_sent = transport->xmit.offset;
if (likely(req->rq_bytes_sent >= req->rq_slen)) {
+ req->rq_xmit_bytes_sent += transport->xmit.offset;
req->rq_bytes_sent = 0;
+ transport->xmit.offset = 0;
return 0;
}
@@ -760,18 +766,13 @@ static int xs_tcp_send_request(struct rpc_task *task)
*/
static void xs_tcp_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
{
- struct rpc_rqst *req;
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (task != xprt->snd_task)
return;
if (task == NULL)
goto out_release;
- req = task->tk_rqstp;
- if (req == NULL)
- goto out_release;
- if (req->rq_bytes_sent == 0)
- goto out_release;
- if (req->rq_bytes_sent == req->rq_snd_buf.len)
+ if (transport->xmit.offset == 0 || !xprt_connected(xprt))
goto out_release;
set_bit(XPRT_CLOSE_WAIT, &xprt->state);
out_release:
@@ -2021,6 +2022,8 @@ static int xs_local_finish_connecting(struct rpc_xprt *xprt,
write_unlock_bh(&sk->sk_callback_lock);
}
+ transport->xmit.offset = 0;
+
/* Tell the socket layer to start connecting... */
xprt->stat.connect_count++;
xprt->stat.connect_start = jiffies;
@@ -2384,6 +2387,7 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
transport->recv.len = 0;
transport->recv.copied = 0;
transport->recv.flags = TCP_RCV_COPY_FRAGHDR | TCP_RCV_COPY_XID;
+ transport->xmit.offset = 0;
/* Tell the socket layer to start connecting... */
xprt->stat.connect_count++;
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> --- include/linux/sunrpc/xprtsock.h | 7 ++++++ net/sunrpc/xprtsock.c | 40 ++++++++++++++++++--------------- 2 files changed, 29 insertions(+), 18 deletions(-)