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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-04-11 16:01:38 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-05-07 20:33:08 -0700 |
| commit | a8bbee2c40d12f2d3ef0fd9e4b1e4a253f62e80d (patch) | |
| tree | 2eb9fc029e517870e971a11b08f10dad0c8fc700 /kernel | |
| parent | c8a6694f331ca69d8f074730b425920a7a0131d2 (diff) | |
| download | lwn-a8bbee2c40d12f2d3ef0fd9e4b1e4a253f62e80d.tar.gz lwn-a8bbee2c40d12f2d3ef0fd9e4b1e4a253f62e80d.zip | |
tracing: Reset ftrace_graph_filter_enabled if count is zero
commit 9f50afccfdc15d95d7331acddcb0f7703df089ae upstream.
The ftrace_graph_count can be decreased with a "!" pattern, so that
the enabled flag should be updated too.
Link: http://lkml.kernel.org/r/1365663698-2413-1-git-send-email-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/ftrace.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 5ca0c9417ebd..0a0e2a6da4fc 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -3736,7 +3736,8 @@ out: if (fail) return -EINVAL; - ftrace_graph_filter_enabled = 1; + ftrace_graph_filter_enabled = !!(*idx); + return 0; } |