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Message-Id: <1365663698-2413-1-git-send-email-namhyung@kernel.org>
Date: Thu, 11 Apr 2013 16:01:38 +0900
From: Namhyung Kim <namhyung@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Frederic Weisbecker <fweisbec@...il.com>,
Ingo Molnar <mingo@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Namhyung Kim <namhyung.kim@....com>
Subject: [PATCH v2 2/2] tracing: Reset ftrace_graph_filter_enabled if count is zero
From: Namhyung Kim <namhyung.kim@....com>
The ftrace_graph_count can be decreased with a "!" pattern, so that
the enabled flag should be updated too.
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
kernel/trace/ftrace.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index be2bcb7ab2f7..daf8df20b764 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3779,7 +3779,8 @@ out:
if (fail)
return -EINVAL;
- ftrace_graph_filter_enabled = 1;
+ ftrace_graph_filter_enabled = !!(*idx);
+
return 0;
}
--
1.7.11.7
--
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