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Date: Wed, 21 Dec 2011 16:19:44 -0800
From: Andrew Morton <akpm@linux-foundation.org>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Michal Hocko <mhocko@suse.cz>, Arnd Bergmann <arnd@arndb.de>,
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        Thomas Gleixner <tglx@linutronix.de>,
        Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: Re: [resend PATCH for 3.2] procfs: do not confuse jiffies with
 cputime64_t
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On Thu, 22 Dec 2011 01:14:39 +0100
Andreas Schwab <schwab@linux-m68k.org> wrote:

> > a) what effect does this problem have upon users of the kernel?
> 
> get_idle_time returns the value in the wrong unit.

So the "idle" fields in /proc/stat are wrong.

We're getting there!  Now, in what way are they wrong?  How could a
kernel maintainer recognise that this patch is needed?