linux-kernel - Re: [PATCH 1/2] posix-timers: Prevents overrun counter overflow

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Message-ID: <alpine.DEB.2.11.1501241729260.5526@nanos>
Date:	Sat, 24 Jan 2015 17:31:29 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Daniel Church <dchurch@...plus.com>
cc:	linux-kernel@...r.kernel.org, libc-alpha@...rceware.org
Subject: Re: [PATCH 1/2] posix-timers: Prevents overrun counter overflow

On Fri, 23 Jan 2015, Daniel Church wrote:
> +	overruns = (unsigned int) hrtimer_forward(timer,
> +					timer->base->get_time(),
> +					timr->it.real.interval);
> +	if (overruns >= delaytimer_max ||
> +		(timr->it_overrun >= 0 &&
> +		 timr->it_overrun >= delaytimer_max - overruns)) {
> +		timr->it_overrun = delaytimer_max;
> +	} else {
> +		timr->it_overrun += overruns;
> +	}

We certainly do not add the same logic 3 times via copy and
paste. Please make that a proper helper function.

Thanks,

	tglx
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