linux-kernel - [PATCH] f2fs: Fix f2fs_truncate_partial

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Date:   Mon,  6 Mar 2023 12:25:49 +0000
From:   Douglas RAILLARD <douglas.raillard@....com>
To:     douglas.raillard@....com, Jaegeuk Kim <jaegeuk@...nel.org>,
        Chao Yu <chao@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        linux-f2fs-devel@...ts.sourceforge.net (open list:F2FS FILE SYSTEM),
        linux-kernel@...r.kernel.org (open list:TRACING),
        linux-trace-kernel@...r.kernel.org (open list:TRACING)
Subject: [PATCH] f2fs: Fix f2fs_truncate_partial_nodes ftrace event

From: Douglas Raillard <douglas.raillard@....com>

Fix the nid_t field so that its size is correctly reported in the text
format embedded in trace.dat files. As it stands, it is reported as
being of size 4:

        field:nid_t nid[3];     offset:24;      size:4; signed:0;

Instead of 12:

        field:nid_t nid[3];     offset:24;      size:12;        signed:0;

This also fixes the reported offset of subsequent fields so that they
match with the actual struct layout.


Signed-off-by: Douglas Raillard <douglas.raillard@....com>
---
 include/trace/events/f2fs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 31d994e6b4ca..8d053838d6cf 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -512,7 +512,7 @@ TRACE_EVENT(f2fs_truncate_partial_nodes,
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
 		__field(ino_t,	ino)
-		__field(nid_t,	nid[3])
+		__array(nid_t,	nid, 3)
 		__field(int,	depth)
 		__field(int,	err)
 	),
-- 
2.25.1