ftrace: Get rid of ftrace_graph_filter_enabled
The ftrace_graph_filter_enabled means that user sets function filter and it always has same meaning of ftrace_graph_count > 0. Link: http://lkml.kernel.org/r/1381739066-7531-2-git-send-email-namhyung@kernel.orgSigned-off-by: NNamhyung Kim <namhyung@kernel.org> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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