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tracing: Reset ftrace_graph_filter_enabled if count is zero

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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

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: stable@vger.kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Namhyung Kim 2013-04-11 16:01:38 +09:00 • committed by Steven Rostedt
parent 39e30cd153
commit 9f50afccfd
1 changed files with 2 additions and 1 deletions
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3
kernel/trace/ftrace.c
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@ -3792,7 +3792,8 @@ out:
if (fail) if (fail)
return -EINVAL; return -EINVAL;
ftrace_graph_filter_enabled = 1; ftrace_graph_filter_enabled = !!(*idx);
return 0; return 0;
} }