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| author | Chuck Lever <chuck.lever@oracle.com> | 2020-07-08 23:09:26 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-09-21 17:21:08 +0300 |
| commit | 9ce07ae5eb1d968c975a4dace0cac25d9e602c9a (patch) | |
| tree | 40eb37d0a8ae84a5e80435ac3a8ddaa25715acf6 | |
| parent | 09d2ba0cb1b311b2e3b144a0bbccc99f3c0d82d1 (diff) | |
| download | linux-9ce07ae5eb1d968c975a4dace0cac25d9e602c9a.tar.xz | |
SUNRPC: Replace dprintk() call site in xprt_prepare_transmit
Generate a trace event when an RPC request is queued without being
sent immediately.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
| -rw-r--r-- | include/trace/events/sunrpc.h | 1 | ||||
| -rw-r--r-- | net/sunrpc/xprt.c | 4 |
2 files changed, 3 insertions, 2 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 781277bb9cb2..9746a722c5a2 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -1093,6 +1093,7 @@ DECLARE_EVENT_CLASS(xprt_writelock_event, DEFINE_WRITELOCK_EVENT(reserve_xprt); DEFINE_WRITELOCK_EVENT(release_xprt); +DEFINE_WRITELOCK_EVENT(transmit_queued); DECLARE_EVENT_CLASS(xprt_cong_event, TP_PROTO( diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 0e4659bd72f4..9da7c6e72c2d 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1408,9 +1408,9 @@ bool xprt_prepare_transmit(struct rpc_task *task) struct rpc_rqst *req = task->tk_rqstp; struct rpc_xprt *xprt = req->rq_xprt; - dprintk("RPC: %5u xprt_prepare_transmit\n", task->tk_pid); - if (!xprt_lock_write(xprt, task)) { + trace_xprt_transmit_queued(xprt, task); + /* Race breaker: someone may have transmitted us */ if (!test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) rpc_wake_up_queued_task_set_status(&xprt->sending, |