linux-kernel - [PATCH 3/5] tracing, function: Fix trace header to follow context-info option

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Message-Id: <1307110803-9476-4-git-send-email-jolsa@redhat.com>
Date:	Fri,  3 Jun 2011 16:20:01 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	rostedt@...dmis.org, fweisbec@...il.com, mingo@...hat.com
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...hat.com>
Subject: [PATCH 3/5] tracing, function: Fix trace header to follow context-info option

The header display of function tracer does not follow
the context-info option, so field names are displayed even
if this option is off.

Added check for TRACE_ITER_CONTEXT_INFO trace_flags.

Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
 kernel/trace/trace.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ee9c921..01fc8d7 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2051,6 +2051,9 @@ void trace_default_header(struct seq_file *m)
 {
 	struct trace_iterator *iter = m->private;
 
+	if (!(trace_flags & TRACE_ITER_CONTEXT_INFO))
+		return;
+
 	if (iter->iter_flags & TRACE_FILE_LAT_FMT) {
 		/* print nothing if the buffers are empty */
 		if (trace_empty(iter))
-- 
1.7.1

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