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SUNRPC: Trace xprt_timer events

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Track RPC timeouts: report the XID and the server address to match
the content of network capture.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2018-01-03 15:38:25 -05:00 committed by Anna Schumaker
parent 9ab6d89e74
commit 82476d9f95
3 changed files with 5 additions and 3 deletions
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4
include/trace/events/sunrpc.h
View File

@ -390,6 +390,10 @@ DECLARE_EVENT_CLASS(rpc_xprt_event,
__entry->status)
);
DEFINE_EVENT(rpc_xprt_event, xprt_timer,
TP_PROTO(struct rpc_xprt *xprt, __be32 xid, int status),
TP_ARGS(xprt, xid, status));
DEFINE_EVENT(rpc_xprt_event, xprt_lookup_rqst,
TP_PROTO(struct rpc_xprt *xprt, __be32 xid, int status),
TP_ARGS(xprt, xid, status));

2
net/sunrpc/xprt.c
View File

@ -940,8 +940,8 @@ static void xprt_timer(struct rpc_task *task)
if (task->tk_status != -ETIMEDOUT)
return;
dprintk("RPC: %5u xprt_timer\n", task->tk_pid);
trace_xprt_timer(xprt, req->rq_xid, task->tk_status);
if (!req->rq_reply_bytes_recvd) {
if (xprt->ops->timer)
xprt->ops->timer(xprt, task);

2
net/sunrpc/xprtrdma/transport.c
View File

@ -516,8 +516,6 @@ xprt_rdma_set_port(struct rpc_xprt *xprt, u16 port)
static void
xprt_rdma_timer(struct rpc_xprt *xprt, struct rpc_task *task)
{
dprintk("RPC: %5u %s: xprt = %p\n", task->tk_pid, __func__, xprt);
xprt_force_disconnect(xprt);
}