linux-kernel - Re: bug in jiffy time comparison macros

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Date:	Wed, 11 Jun 2008 04:51:26 +0200
From:	Johannes Weiner <hannes@...urebad.de>
To:	Ralph Campbell <ralph.campbell@...gic.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: bug in jiffy time comparison macros

Hi,

Ralph Campbell <ralph.campbell@...gic.com> writes:

> It may just be me :-) but this looks like a bug:
> In the current include/linux/jiffies.h:
>
> #define time_before(a,b)        time_after(b,a)
>
> Shouldn't this be:
>
> #define time_before(a,b)        time_after_eq(b,a)

Then it would be time_before_eq()..?

If a is before b, b must be after a.  If they might be equal, than from
both points of view.

	Hannes
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