Merge "Suppress error log when timerslack_ns write fails for already dead process"

    if (sys_supports_timerslack) {

        auto file = StringPrintf("/proc/%d/timerslack_ns", tid);

        if (!WriteStringToFile(std::to_string(slack_), file)) {

            if (errno == ENOENT) {

                // This happens when process is already dead

                return true;

            }

            PLOG(ERROR) << "set_timerslack_ns write failed";

        }

    }