Re: [PATCH] md: fix sync_completed reporting for very large drives (>2TB)

["Rémi Rérolle" <rrerolle@lacie.com>]

Le 04/01/2011 16:44, Rémi Rérolle a écrit :
> From: Rémi Rérolle<rrerolle@lacie.com>
>
> The values exported in the sync_completed file are unsigned long, which
> overflows with very large drives, resulting in wrong values reported.
>
> Since sync_completed uses sectors as unit, we'll start getting wrong
> values with components larger than 2TB.
>
> This patch simply replaces the use of unsigned long by unsigned long long.
>

Hi Neil,

What is the status for this patch ?

Thanks in advance!

> Signed-off-by: Rémi Rérolle<rrerolle@lacie.com>
> ---
>   drivers/md/md.c |    4 ++--
>   1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index 175c424..ea46b3b 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -3912,7 +3912,7 @@ static struct md_sysfs_entry md_sync_speed = __ATTR_RO(sync_speed);
>   static ssize_t
>   sync_completed_show(mddev_t *mddev, char *page)
>   {
> -	unsigned long max_sectors, resync;
> +	unsigned long long max_sectors, resync;
>
>   	if (!test_bit(MD_RECOVERY_RUNNING,&mddev->recovery))
>   		return sprintf(page, "none\n");
> @@ -3923,7 +3923,7 @@ sync_completed_show(mddev_t *mddev, char *page)
>   		max_sectors = mddev->dev_sectors;
>
>   	resync = mddev->curr_resync_completed;
> -	return sprintf(page, "%lu / %lu\n", resync, max_sectors);
> +	return sprintf(page, "%llu / %llu\n", resync, max_sectors);
>   }
>
>   static struct md_sysfs_entry md_sync_completed = __ATTR_RO(sync_completed);

-- 
Rémi
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