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From: Chuck Lever <chuck.lever@oracle.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH v1 05/22] SUNRPC: Replace dprintk() call site in xprt_prepare_transmit
Date: Wed, 08 Jul 2020 16:09:26 -0400	[thread overview]
Message-ID: <20200708200926.22129.1042.stgit@manet.1015granger.net> (raw)
In-Reply-To: <20200708200121.22129.92375.stgit@manet.1015granger.net>

Generate a trace event when an RPC request is queued without being
sent immediately.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 include/trace/events/sunrpc.h |    1 +
 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 7ff40870d122..b5d1ed7f996a 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 cb5cf74105aa..1ce89778119c 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1399,9 +1399,9 @@ 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,


  parent reply	other threads:[~2020-07-08 20:09 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-08 20:08 [PATCH v1 00/22] SUNRPC: Replace dprintk calls with tracepoints Chuck Lever
2020-07-08 20:09 ` [PATCH v1 01/22] SUNRPC: Remove trace_xprt_complete_rqst() Chuck Lever
2020-07-08 20:09 ` [PATCH v1 02/22] SUNRPC: Hoist trace_xprtrdma_op_allocate into generic code Chuck Lever
2020-07-08 20:09 ` [PATCH v1 03/22] SUNRPC: Remove debugging instrumentation from xprt_release Chuck Lever
2020-07-08 20:09 ` [PATCH v1 04/22] SUNRPC: Update debugging instrumentation in xprt_do_reserve() Chuck Lever
2020-07-08 20:09 ` Chuck Lever [this message]
2020-07-08 20:09 ` [PATCH v1 06/22] SUNRPC: Replace dprintk() call site in xs_nospace() Chuck Lever
2020-07-08 20:09 ` [PATCH v1 07/22] SUNRPC: Remove the dprint_status() macro Chuck Lever
2020-07-08 20:09 ` [PATCH v1 08/22] SUNRPC: Remove dprintk call site in call_start() Chuck Lever
2020-07-08 20:09 ` [PATCH v1 09/22] SUNRPC: Replace connect dprintk call sites with a tracepoint Chuck Lever
2020-07-08 20:09 ` [PATCH v1 10/22] SUNRPC: Mitigate cond_resched() in xprt_transmit() Chuck Lever
2020-07-08 20:09 ` [PATCH v1 11/22] SUNRPC: Add trace_rpc_timeout_status() Chuck Lever
2020-07-08 20:10 ` [PATCH v1 12/22] SUNRPC: Trace call_refresh events Chuck Lever
2020-07-08 20:10 ` [PATCH v1 13/22] SUNRPC: Remove dprintk call site in call_decode Chuck Lever
2020-07-08 20:10 ` [PATCH v1 14/22] SUNRPC: Clean up call_bind_status() observability Chuck Lever
2020-07-08 20:10 ` [PATCH v1 15/22] SUNRPC: Remove rpcb_getport_async dprintk call sites Chuck Lever
2020-07-08 20:10 ` [PATCH v1 16/22] SUNRPC: Hoist trace_xprtrdma_op_setport into generic code Chuck Lever
2020-07-08 20:10 ` [PATCH v1 17/22] SUNRPC: Remove dprintk call sites in rpcbind XDR functions Chuck Lever
2020-07-08 20:10 ` [PATCH v1 18/22] SUNRPC: Remove more dprintks in rpcb_clnt.c Chuck Lever
2020-07-08 20:10 ` [PATCH v1 19/22] SUNRPC: Replace rpcbind dprintk call sites with tracepoints Chuck Lever
2020-07-08 20:10 ` [PATCH v1 20/22] SUNRPC: Clean up RPC scheduler tracepoints Chuck Lever
2020-07-08 20:10 ` [PATCH v1 21/22] SUNRPC: Remove dprintk call sites in RPC queuing functions Chuck Lever
2020-07-08 20:10 ` [PATCH v1 22/22] SUNRPC: Remove remaining dprintks from sched.c Chuck Lever
2020-08-17 17:25 ` [PATCH v1 00/22] SUNRPC: Replace dprintk calls with tracepoints Chuck Lever

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