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From: Roman Zippel <zippel@linux-m68k.org>
To: "Francis Moreau" <francis.moro@gmail.com>
Cc: linux-kernel@vger.kernel.org, johnstul@us.ibm.com
Subject: Re: Question on timekeeping subsystem
Date: Thu, 14 Feb 2008 02:37:51 +0100	[thread overview]
Message-ID: <200802140237.51499.zippel@linux-m68k.org> (raw)
In-Reply-To: <38b2ab8a0802130602r7d8fc470i7896e406d0451ec7@mail.gmail.com>

Hi,

On Wednesday 13. February 2008, Francis Moreau wrote:

> First I tried to find some documentation on the current implementation
> but haven't found any thing really usefull. Specially there's nothing about
> it in Documentation/ directory. Please correct me if I'm already wrong.
>
> Actually I read the implementation of update_wall_time() and I really fail
> to understand how it works. This is probably because I don't know
> what "xtime_nsec" and "error" fields in clocksource struct are for.
> These fields are not documented anywhere in the source code so it
> should be obvious but unfortunately not for me.

These mails should help to understand, what this code does:

http://lkml.org/lkml/2006/3/4/61
http://lkml.org/lkml/2006/4/3/205

bye, Roman

  reply	other threads:[~2008-02-14  1:38 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-13 14:02 Francis Moreau
2008-02-14  1:37 ` Roman Zippel [this message]
2008-02-14 11:37   ` Francis Moreau

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