linux-kernel - Re: [Patch 1/6] Enhanced partition statistics: core statistics

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Date:	Fri, 8 Feb 2008 11:06:49 +0100
From:	Jens Axboe <jens.axboe@...cle.com>
To:	Jerome Marchand <jmarchan@...hat.com>
Cc:	linux-kernel@...r.kernel.org, "Ed L. Cashin" <ecashin@...aid.com>
Subject: Re: [Patch 1/6] Enhanced partition statistics: core statistics

On Fri, Feb 01 2008, Jerome Marchand wrote:
> This patch contain the core infrastructure of enhanced partition
> statistics. It adds to struct hd_struct the same stats data as struct
> gendisk and define basics function to manipulate them.
> 
> Signed-off-by: Jerome Marchand <jmarchan@...hat.com>
> ---
>  include/linux/genhd.h |  132 +++++++++++++++++++++++++++++++++++++++-
>  1 file changed, 131 insertions(+), 1 deletion(-)
> diff -uprN -X linux-2.6/Documentation/dontdiff linux-2.6.orig/include/linux/genhd.h linux-2.6/include/linux/genhd.h
> --- linux-2.6.orig/include/linux/genhd.h	2008-01-31 16:43:28.000000000 +0100
> +++ linux-2.6/include/linux/genhd.h	2008-01-31 16:47:12.000000000 +0100
> @@ -101,6 +101,13 @@ struct hd_struct {
>  #ifdef CONFIG_FAIL_MAKE_REQUEST
>  	int make_it_fail;
>  #endif
> +	unsigned long stamp;
> +	int in_flight;
> +#ifdef	CONFIG_SMP
> +	struct disk_stats *dkstats;
> +#else
> +	struct disk_stats dkstats;
> +#endif
>  };

This wont work on !CONFIG_SMP, since the disk_stats structure definition
is below that point. I moved it up.

Committed 1-6, thanks. But please remember to test UP configs too :)

-- 
Jens Axboe

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