linux-kernel - Re: [PATCH] lockstat - fix numerical output rounding error

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Message-ID: <20080826083721.GC27080@elte.hu>
Date:	Tue, 26 Aug 2008 10:37:21 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Joe Korty <joe.korty@...r.com>
Cc:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] lockstat - fix numerical output rounding error


* Joe Korty <joe.korty@...r.com> wrote:

> Fix rounding error in /proc/lock_stat numerical output.
> 
> On occasion the two digit fractional part contains the three
> digit value '100'.  This is due to a bug in the rounding algorithm
> which pushes values in the range '95..99' to '100' rather than
> to '00' + an increment to the integer part.  For example,
> 
> 	- 123456.100      old display
> 	+ 123457.00	  new display

applied to tip/core/urgent - thanks Joe!

(btw., please include Signed-off-by lines in your patches in the future)

	Ingo
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