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From: Chuck Lever <chuck.lever@oracle.com>
To: bfields@fieldses.org
Cc: linux-nfs@vger.kernel.org, linux-rdma@vger.kernel.org
Subject: [PATCH v3 12/32] SUNRPC: Remove kernel memory address from svc_xprt tracepoints
Date: Thu, 21 May 2020 10:34:46 -0400
Message-ID: <20200521143446.3557.52142.stgit@klimt.1015granger.net> (raw)
In-Reply-To: <20200521141100.3557.17098.stgit@klimt.1015granger.net>

Clean up: The xprt=%p was meant to distinguish events from different
transports, but the addr=%s does that just as well and does not
expose kernel memory addresses.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 include/trace/events/sunrpc.h |   27 +++++++--------------------
 1 file changed, 7 insertions(+), 20 deletions(-)

diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index ffd2215950dc..53f2461cf552 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -1173,22 +1173,19 @@ TRACE_EVENT(svc_xprt_do_enqueue,
 	TP_ARGS(xprt, rqst),
 
 	TP_STRUCT__entry(
-		__field(struct svc_xprt *, xprt)
 		__field(int, pid)
 		__field(unsigned long, flags)
 		__string(addr, xprt->xpt_remotebuf)
 	),
 
 	TP_fast_assign(
-		__entry->xprt = xprt;
 		__entry->pid = rqst? rqst->rq_task->pid : 0;
 		__entry->flags = xprt->xpt_flags;
 		__assign_str(addr, xprt->xpt_remotebuf);
 	),
 
-	TP_printk("xprt=%p addr=%s pid=%d flags=%s",
-			__entry->xprt, __get_str(addr),
-			__entry->pid, show_svc_xprt_flags(__entry->flags))
+	TP_printk("addr=%s pid=%d flags=%s", __get_str(addr),
+		__entry->pid, show_svc_xprt_flags(__entry->flags))
 );
 
 DECLARE_EVENT_CLASS(svc_xprt_event,
@@ -1197,20 +1194,17 @@ DECLARE_EVENT_CLASS(svc_xprt_event,
 	TP_ARGS(xprt),
 
 	TP_STRUCT__entry(
-		__field(struct svc_xprt *, xprt)
 		__field(unsigned long, flags)
 		__string(addr, xprt->xpt_remotebuf)
 	),
 
 	TP_fast_assign(
-		__entry->xprt = xprt;
 		__entry->flags = xprt->xpt_flags;
 		__assign_str(addr, xprt->xpt_remotebuf);
 	),
 
-	TP_printk("xprt=%p addr=%s flags=%s",
-			__entry->xprt, __get_str(addr),
-			show_svc_xprt_flags(__entry->flags))
+	TP_printk("addr=%s flags=%s", __get_str(addr),
+		show_svc_xprt_flags(__entry->flags))
 );
 
 DEFINE_EVENT(svc_xprt_event, svc_xprt_no_write_space,
@@ -1223,24 +1217,20 @@ TRACE_EVENT(svc_xprt_dequeue,
 	TP_ARGS(rqst),
 
 	TP_STRUCT__entry(
-		__field(struct svc_xprt *, xprt)
 		__field(unsigned long, flags)
 		__field(unsigned long, wakeup)
 		__string(addr, rqst->rq_xprt->xpt_remotebuf)
 	),
 
 	TP_fast_assign(
-		__entry->xprt = rqst->rq_xprt;
 		__entry->flags = rqst->rq_xprt->xpt_flags;
 		__entry->wakeup = ktime_to_us(ktime_sub(ktime_get(),
 							rqst->rq_qtime));
 		__assign_str(addr, rqst->rq_xprt->xpt_remotebuf);
 	),
 
-	TP_printk("xprt=%p addr=%s flags=%s wakeup-us=%lu",
-			__entry->xprt, __get_str(addr),
-			show_svc_xprt_flags(__entry->flags),
-			__entry->wakeup)
+	TP_printk("addr=%s flags=%s wakeup-us=%lu", __get_str(addr),
+		show_svc_xprt_flags(__entry->flags), __entry->wakeup)
 );
 
 TRACE_EVENT(svc_wake_up,
@@ -1265,21 +1255,18 @@ TRACE_EVENT(svc_handle_xprt,
 	TP_ARGS(xprt, len),
 
 	TP_STRUCT__entry(
-		__field(struct svc_xprt *, xprt)
 		__field(int, len)
 		__field(unsigned long, flags)
 		__string(addr, xprt->xpt_remotebuf)
 	),
 
 	TP_fast_assign(
-		__entry->xprt = xprt;
 		__entry->len = len;
 		__entry->flags = xprt->xpt_flags;
 		__assign_str(addr, xprt->xpt_remotebuf);
 	),
 
-	TP_printk("xprt=%p addr=%s len=%d flags=%s",
-		__entry->xprt, __get_str(addr),
+	TP_printk("addr=%s len=%d flags=%s", __get_str(addr),
 		__entry->len, show_svc_xprt_flags(__entry->flags))
 );
 


  parent reply index

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-21 14:33 [PATCH v3 00/32] Possible NFSD patches for v5.8 Chuck Lever
2020-05-21 14:33 ` [PATCH v3 01/32] SUNRPC: Move xpt_mutex into socket xpo_sendto methods Chuck Lever
2020-05-21 14:33 ` [PATCH v3 02/32] svcrdma: Clean up the tracing for rw_ctx_init errors Chuck Lever
2020-05-21 14:33 ` [PATCH v3 03/32] svcrdma: Clean up handling of get_rw_ctx errors Chuck Lever
2020-05-21 14:34 ` [PATCH v3 04/32] svcrdma: Trace page overruns when constructing RDMA Reads Chuck Lever
2020-05-21 14:34 ` [PATCH v3 05/32] svcrdma: trace undersized Write chunks Chuck Lever
2020-05-21 14:34 ` [PATCH v3 06/32] svcrdma: Fix backchannel return code Chuck Lever
2020-05-21 14:34 ` [PATCH v3 07/32] svcrdma: Remove backchannel dprintk call sites Chuck Lever
2020-05-21 14:34 ` [PATCH v3 08/32] svcrdma: Rename tracepoints that record header decoding errors Chuck Lever
2020-05-21 14:34 ` [PATCH v3 09/32] svcrdma: Remove the SVCRDMA_DEBUG macro Chuck Lever
2020-05-21 14:34 ` [PATCH v3 10/32] svcrdma: Displayed remote IP address should match stored address Chuck Lever
2020-05-21 14:34 ` [PATCH v3 11/32] svcrdma: Add tracepoints to report ->xpo_accept failures Chuck Lever
2020-05-21 14:34 ` Chuck Lever [this message]
2020-05-21 14:34 ` [PATCH v3 13/32] SUNRPC: Tracepoint to record errors in svc_xpo_create() Chuck Lever
2020-05-21 14:34 ` [PATCH v3 14/32] SUNRPC: Trace a few more generic svc_xprt events Chuck Lever
2020-05-21 14:35 ` [PATCH v3 15/32] SUNRPC: Remove "#include <trace/events/skb.h>" Chuck Lever
2020-05-21 14:35 ` [PATCH v3 16/32] SUNRPC: Add more svcsock tracepoints Chuck Lever
2020-05-21 14:35 ` [PATCH v3 17/32] SUNRPC: Replace dprintk call sites in TCP state change callouts Chuck Lever
2020-05-21 14:35 ` [PATCH v3 18/32] SUNRPC: Trace server-side rpcbind registration events Chuck Lever
2020-05-21 14:35 ` [PATCH v3 19/32] SUNRPC: Rename svc_sock::sk_reclen Chuck Lever
2020-05-21 14:35 ` [PATCH v3 20/32] SUNRPC: Restructure svc_tcp_recv_record() Chuck Lever
2020-05-21 14:35 ` [PATCH v3 21/32] SUNRPC: Replace dprintk() call sites in TCP receive path Chuck Lever
2020-05-21 14:35 ` [PATCH v3 22/32] SUNRPC: Refactor recvfrom path dealing with incomplete TCP receives Chuck Lever
2020-05-21 14:35 ` [PATCH v3 23/32] SUNRPC: Clean up svc_release_skb() functions Chuck Lever
2020-05-21 14:35 ` [PATCH v3 24/32] SUNRPC: Refactor svc_recvfrom() Chuck Lever
2020-05-21 14:35 ` [PATCH v3 25/32] SUNRPC: Restructure svc_udp_recvfrom() Chuck Lever
2020-05-21 14:36 ` [PATCH v3 26/32] SUNRPC: svc_show_status() macro should have enum definitions Chuck Lever
2020-05-21 14:36 ` [PATCH v3 27/32] NFSD: Add tracepoints to NFSD's duplicate reply cache Chuck Lever
2020-05-21 14:36 ` [PATCH v3 28/32] NFSD: Add tracepoints to the NFSD state management code Chuck Lever
2020-05-21 14:36 ` [PATCH v3 29/32] NFSD: Add tracepoints for monitoring NFSD callbacks Chuck Lever
2020-05-21 14:36 ` [PATCH v3 30/32] SUNRPC: Clean up request deferral tracepoints Chuck Lever
2020-05-21 14:36 ` [PATCH v3 31/32] NFSD: Squash an annoying compiler warning Chuck Lever
2020-05-21 14:36 ` [PATCH v3 32/32] NFSD: Fix improperly-formatted Doxygen comments Chuck Lever

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