tracing: report_latency() in trace_sched_wakeup.c can return boolean
This patch makes report_latency return bool to improve readability, indicating whether this new latency should be reported/recorded. No functional change. Link: http://lkml.kernel.org/r/1443537816-5788-2-git-send-email-bywxiaobai@163.comSigned-off-by: NYaowei Bai <bywxiaobai@163.com> Signed-off-by: NSteven Rostedt <rostedt@goodmis.org>
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