linux-kernel - Re: [PATCH 01/18] move do_timer() from kernel/timer.c into kernel/time/timekeeping.c

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Date:	Sat, 22 Jan 2011 10:45:00 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Torben Hohn <torbenh@....de>
cc:	linux-kernel@...r.kernel.org, johnstul@...ibm.com,
	hch@...radead.org, yong.zhang0@...il.com
Subject: Re: [PATCH 01/18] move do_timer() from kernel/timer.c into
 kernel/time/timekeeping.c

On Sat, 22 Jan 2011, Torben Hohn wrote:

Please add a sensible change log, why you move that code.

> Signed-off-by: Torben Hohn <torbenh@....de>
> ---
>  kernel/time/timekeeping.c |   12 ++++++++++++
>  kernel/timer.c            |   13 -------------
>  2 files changed, 12 insertions(+), 13 deletions(-)
> 
> diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
> index d27c756..546d82f 100644
> --- a/kernel/time/timekeeping.c
> +++ b/kernel/time/timekeeping.c
> @@ -946,3 +946,15 @@ struct timespec get_monotonic_coarse(void)
>  				now.tv_nsec + mono.tv_nsec);
>  	return now;
>  }
> +
> +/*
> + * The 64-bit jiffies value is not atomic - you MUST NOT read it
> + * without sampling the sequence number in xtime_lock.
> + * jiffies is defined in the linker script...
> + */
> +void do_timer(unsigned long ticks)
> +{
> +	jiffies_64 += ticks;
> +	update_wall_time();
> +	calc_global_load(ticks);
> +}

That also should make update_wall_time() static.

Thanks,

	tglx
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