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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 RFC 1/6] SUNRPC: Capture value of xdr_buf::page_base
Date: Tue, 31 Aug 2021 15:05:15 -0400	[thread overview]
Message-ID: <163043671590.1415.2588181016845773403.stgit@klimt.1015granger.net> (raw)
In-Reply-To: <163043485613.1415.4979286233971984855.stgit@klimt.1015granger.net>

This value will be non-zero more often, after subsequent patches are
applied. Knowing its value can be important diagnostic information.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 include/trace/events/sunrpc.h |   20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index d323f5a049c8..f13de06b7c1d 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -62,6 +62,7 @@ DECLARE_EVENT_CLASS(rpc_xdr_buf_class,
 		__field(size_t, head_len)
 		__field(const void *, tail_base)
 		__field(size_t, tail_len)
+		__field(unsigned int, page_base)
 		__field(unsigned int, page_len)
 		__field(unsigned int, msg_len)
 	),
@@ -74,14 +75,17 @@ DECLARE_EVENT_CLASS(rpc_xdr_buf_class,
 		__entry->head_len = xdr->head[0].iov_len;
 		__entry->tail_base = xdr->tail[0].iov_base;
 		__entry->tail_len = xdr->tail[0].iov_len;
+		__entry->page_base = xdr->page_base;
 		__entry->page_len = xdr->page_len;
 		__entry->msg_len = xdr->len;
 	),
 
-	TP_printk("task:%u@%u head=[%p,%zu] page=%u tail=[%p,%zu] len=%u",
+	TP_printk("task:%u@%u head=[%p,%zu] page=%u(%u) tail=[%p,%zu] len=%u",
 		__entry->task_id, __entry->client_id,
-		__entry->head_base, __entry->head_len, __entry->page_len,
-		__entry->tail_base, __entry->tail_len, __entry->msg_len
+		__entry->head_base, __entry->head_len,
+		__entry->page_len, __entry->page_base,
+		__entry->tail_base, __entry->tail_len,
+		__entry->msg_len
 	)
 );
 
@@ -1525,6 +1529,7 @@ DECLARE_EVENT_CLASS(svc_xdr_buf_class,
 		__field(size_t, head_len)
 		__field(const void *, tail_base)
 		__field(size_t, tail_len)
+		__field(unsigned int, page_base)
 		__field(unsigned int, page_len)
 		__field(unsigned int, msg_len)
 	),
@@ -1535,14 +1540,17 @@ DECLARE_EVENT_CLASS(svc_xdr_buf_class,
 		__entry->head_len = xdr->head[0].iov_len;
 		__entry->tail_base = xdr->tail[0].iov_base;
 		__entry->tail_len = xdr->tail[0].iov_len;
+		__entry->page_base = xdr->page_base;
 		__entry->page_len = xdr->page_len;
 		__entry->msg_len = xdr->len;
 	),
 
-	TP_printk("xid=0x%08x head=[%p,%zu] page=%u tail=[%p,%zu] len=%u",
+	TP_printk("xid=0x%08x head=[%p,%zu] page=%u(%u) tail=[%p,%zu] len=%u",
 		__entry->xid,
-		__entry->head_base, __entry->head_len, __entry->page_len,
-		__entry->tail_base, __entry->tail_len, __entry->msg_len
+		__entry->head_base, __entry->head_len,
+		__entry->page_len, __entry->page_base,
+		__entry->tail_base, __entry->tail_len,
+		__entry->msg_len
 	)
 );
 



  reply	other threads:[~2021-08-31 19:05 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-31 19:05 [PATCH RFC 0/6] NFSD: Pull Read chunks in XDR decoders Chuck Lever
2021-08-31 19:05 ` Chuck Lever [this message]
2021-08-31 19:05 ` [PATCH RFC 2/6] SUNRPC: xdr_stream_subsegment() must handle non-zero page_bases Chuck Lever
2021-08-31 19:05 ` [PATCH RFC 3/6] NFSD: Have legacy NFSD WRITE decoders use xdr_stream_subsegment() Chuck Lever
2021-08-31 19:05 ` [PATCH RFC 4/6] SUNRPC: svc_fill_write_vector() must handle non-zero page_bases Chuck Lever
2021-08-31 19:05 ` [PATCH RFC 5/6] NFSD: Add a transport hook for pulling argument payloads Chuck Lever
2021-08-31 19:05 ` [PATCH RFC 6/6] svcrdma: Pull Read chunks in ->xpo_argument_payload Chuck Lever
2021-08-31 19:08   ` Chuck Lever III
2021-08-31 20:40   ` J. Bruce Fields
2021-08-31 21:19     ` Chuck Lever III
2021-08-31 21:24       ` Bruce Fields
2021-08-31 20:42 ` [PATCH RFC 0/6] NFSD: Pull Read chunks in XDR decoders J. Bruce Fields
2021-08-31 21:23   ` Chuck Lever III

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