SUNRPC: Introduce trace points in rpc_auth_gss.ko
Add infrastructure for trace points in the RPC_AUTH_GSS kernel
module, and add a few sample trace points. These report exceptional
or unexpected events, and observe the assignment of GSS sequence
numbers.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index f1ec211..bc7489f 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1165,6 +1165,7 @@ xprt_request_enqueue_transmit(struct rpc_task *task)
/* Note: req is added _before_ pos */
list_add_tail(&req->rq_xmit, &pos->rq_xmit);
INIT_LIST_HEAD(&req->rq_xmit2);
+ trace_xprt_enq_xmit(task, 1);
goto out;
}
} else if (RPC_IS_SWAPPER(task)) {
@@ -1176,6 +1177,7 @@ xprt_request_enqueue_transmit(struct rpc_task *task)
/* Note: req is added _before_ pos */
list_add_tail(&req->rq_xmit, &pos->rq_xmit);
INIT_LIST_HEAD(&req->rq_xmit2);
+ trace_xprt_enq_xmit(task, 2);
goto out;
}
} else if (!req->rq_seqno) {
@@ -1184,11 +1186,13 @@ xprt_request_enqueue_transmit(struct rpc_task *task)
continue;
list_add_tail(&req->rq_xmit2, &pos->rq_xmit2);
INIT_LIST_HEAD(&req->rq_xmit);
+ trace_xprt_enq_xmit(task, 3);
goto out;
}
}
list_add_tail(&req->rq_xmit, &xprt->xmit_queue);
INIT_LIST_HEAD(&req->rq_xmit2);
+ trace_xprt_enq_xmit(task, 4);
out:
set_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate);
spin_unlock(&xprt->queue_lock);
@@ -1313,8 +1317,6 @@ xprt_request_transmit(struct rpc_rqst *req, struct rpc_task *snd_task)
int is_retrans = RPC_WAS_SENT(task);
int status;
- dprintk("RPC: %5u xprt_transmit(%u)\n", task->tk_pid, req->rq_slen);
-
if (!req->rq_bytes_sent) {
if (xprt_request_data_received(task)) {
status = 0;
@@ -1336,9 +1338,9 @@ xprt_request_transmit(struct rpc_rqst *req, struct rpc_task *snd_task)
connect_cookie = xprt->connect_cookie;
status = xprt->ops->send_request(req);
- trace_xprt_transmit(xprt, req->rq_xid, status);
if (status != 0) {
req->rq_ntrans--;
+ trace_xprt_transmit(req, status);
return status;
}
@@ -1347,7 +1349,6 @@ xprt_request_transmit(struct rpc_rqst *req, struct rpc_task *snd_task)
xprt_inject_disconnect(xprt);
- dprintk("RPC: %5u xmit complete\n", task->tk_pid);
task->tk_flags |= RPC_TASK_SENT;
spin_lock_bh(&xprt->transport_lock);
@@ -1360,6 +1361,7 @@ xprt_request_transmit(struct rpc_rqst *req, struct rpc_task *snd_task)
req->rq_connect_cookie = connect_cookie;
out_dequeue:
+ trace_xprt_transmit(req, status);
xprt_request_dequeue_transmit(task);
rpc_wake_up_queued_task_set_status(&xprt->sending, task, status);
return status;