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SUNRPC: Clean up - rename xs_tcp_data_receive() to xs_stream_data_receive()

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In preparation for sharing with AF_LOCAL.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2018-09-14 14:26:28 -04:00
parent 277e4ab7d5
commit c50b8ee02f
2 changed files with 38 additions and 49 deletions
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16
include/trace/events/sunrpc.h
View File

@ -470,14 +470,14 @@ TRACE_EVENT(xprt_ping,
__get_str(addr), __get_str(port), __entry->status)
);
TRACE_EVENT(xs_tcp_data_ready,
TP_PROTO(struct rpc_xprt *xprt, int err, unsigned int total),
TRACE_EVENT(xs_stream_read_data,
TP_PROTO(struct rpc_xprt *xprt, ssize_t err, size_t total),
TP_ARGS(xprt, err, total),
TP_STRUCT__entry(
__field(int, err)
__field(unsigned int, total)
__field(ssize_t, err)
__field(size_t, total)
__string(addr, xprt ? xprt->address_strings[RPC_DISPLAY_ADDR] :
"(null)")
__string(port, xprt ? xprt->address_strings[RPC_DISPLAY_PORT] :
@ -493,11 +493,11 @@ TRACE_EVENT(xs_tcp_data_ready,
xprt->address_strings[RPC_DISPLAY_PORT] : "(null)");
),
TP_printk("peer=[%s]:%s err=%d total=%u", __get_str(addr),
TP_printk("peer=[%s]:%s err=%zd total=%zu", __get_str(addr),
__get_str(port), __entry->err, __entry->total)
);
TRACE_EVENT(xs_tcp_data_recv,
TRACE_EVENT(xs_stream_read_request,
TP_PROTO(struct sock_xprt *xs),
TP_ARGS(xs),
@ -508,7 +508,7 @@ TRACE_EVENT(xs_tcp_data_recv,
__field(u32, xid)
__field(unsigned long, copied)
__field(unsigned int, reclen)
__field(unsigned long, offset)
__field(unsigned int, offset)
),
TP_fast_assign(
@ -520,7 +520,7 @@ TRACE_EVENT(xs_tcp_data_recv,
__entry->offset = xs->recv.offset;
),
TP_printk("peer=[%s]:%s xid=0x%08x copied=%lu reclen=%u offset=%lu",
TP_printk("peer=[%s]:%s xid=0x%08x copied=%lu reclen=%u offset=%u",
__get_str(addr), __get_str(port), __entry->xid,
__entry->copied, __entry->reclen, __entry->offset)
);

71
net/sunrpc/xprtsock.c
View File

@ -626,7 +626,7 @@ xs_read_stream(struct sock_xprt *transport, int flags)
return -EAGAIN;
}
if (xs_read_stream_request_done(transport)) {
trace_xs_tcp_data_recv(transport);
trace_xs_stream_read_request(transport);
transport->recv.copied = 0;
}
transport->recv.offset = 0;
@ -642,6 +642,34 @@ xs_read_stream(struct sock_xprt *transport, int flags)
return ret;
}
static void xs_stream_data_receive(struct sock_xprt *transport)
{
size_t read = 0;
ssize_t ret = 0;
mutex_lock(&transport->recv_mutex);
if (transport->sock == NULL)
goto out;
clear_bit(XPRT_SOCK_DATA_READY, &transport->sock_state);
for (;;) {
ret = xs_read_stream(transport, MSG_DONTWAIT);
if (ret <= 0)
break;
read += ret;
cond_resched();
}
out:
mutex_unlock(&transport->recv_mutex);
trace_xs_stream_read_data(&transport->xprt, ret, read);
}
static void xs_stream_data_receive_workfn(struct work_struct *work)
{
struct sock_xprt *transport =
container_of(work, struct sock_xprt, recv_worker);
xs_stream_data_receive(transport);
}
#define XS_SENDMSG_FLAGS (MSG_DONTWAIT | MSG_NOSIGNAL)
static int xs_send_kvec(struct socket *sock, struct sockaddr *addr, int addrlen, struct kvec *vec, unsigned int base, int more)
@ -1498,45 +1526,6 @@ static size_t xs_tcp_bc_maxpayload(struct rpc_xprt *xprt)
}
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
static void xs_tcp_data_receive(struct sock_xprt *transport)
{
struct rpc_xprt *xprt = &transport->xprt;
struct sock *sk;
size_t read = 0;
ssize_t ret = 0;
restart:
mutex_lock(&transport->recv_mutex);
sk = transport->inet;
if (sk == NULL)
goto out;
for (;;) {
clear_bit(XPRT_SOCK_DATA_READY, &transport->sock_state);
ret = xs_read_stream(transport, MSG_DONTWAIT | MSG_NOSIGNAL);
if (ret < 0)
break;
read += ret;
if (need_resched()) {
mutex_unlock(&transport->recv_mutex);
cond_resched();
goto restart;
}
}
if (test_bit(XPRT_SOCK_DATA_READY, &transport->sock_state))
queue_work(xprtiod_workqueue, &transport->recv_worker);
out:
mutex_unlock(&transport->recv_mutex);
trace_xs_tcp_data_ready(xprt, ret, read);
}
static void xs_tcp_data_receive_workfn(struct work_struct *work)
{
struct sock_xprt *transport =
container_of(work, struct sock_xprt, recv_worker);
xs_tcp_data_receive(transport);
}
/**
* xs_tcp_state_change - callback to handle TCP socket state changes
* @sk: socket whose state has changed
@ -3066,7 +3055,7 @@ static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
xprt->connect_timeout = xprt->timeout->to_initval *
(xprt->timeout->to_retries + 1);
INIT_WORK(&transport->recv_worker, xs_tcp_data_receive_workfn);
INIT_WORK(&transport->recv_worker, xs_stream_data_receive_workfn);
INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_setup_socket);
switch (addr->sa_family) {