On Mon, Sep 10, 2007 at 06:51:14PM +0200, Iustin Pop wrote:
> The 'degraded' attribute is useful to quickly determine if the array is
> degraded, instead of parsing 'mdadm -D' output or relying on the other
> techniques (number of working devices against number of defined devices,
> etc.).
> The md code already keeps track of this attribute, so it's useful to export
> it.
>
> Signed-off-by: Iustin Pop <[EMAIL PROTECTED]>
> ---
> Note: I sent this back in January and it people agreed it was a good
> idea. However, it has not been picked up. So here I resend it again.
Ping? Neil, could you spare a few moments to look at this? (and sorry for
bothering you)
>
> Patch is against 2.6.23-rc5
>
> Thanks,
> Iustin Pop
>
> drivers/md/md.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/md/md.c b/drivers/md/md.c
> index f883b7e..3e3ad71 100644
> --- a/drivers/md/md.c
> +++ b/drivers/md/md.c
> @@ -2842,6 +2842,12 @@ sync_max_store(mddev_t *mddev, const char *buf, size_t
> len)
> static struct md_sysfs_entry md_sync_max =
> __ATTR(sync_speed_max, S_IRUGO|S_IWUSR, sync_max_show, sync_max_store);
>
> +static ssize_t
> +degraded_show(mddev_t *mddev, char *page)
> +{
> + return sprintf(page, "%i\n", mddev->degraded);
> +}
> +static struct md_sysfs_entry md_degraded = __ATTR_RO(degraded);
>
> static ssize_t
> sync_speed_show(mddev_t *mddev, char *page)
> @@ -2985,6 +2991,7 @@ static struct attribute *md_redundancy_attrs[] = {
> &md_suspend_lo.attr,
> &md_suspend_hi.attr,
> &md_bitmap.attr,
> + &md_degraded.attr,
> NULL,
> };
> static struct attribute_group md_redundancy_group = {
> --
> 1.5.3.1
>
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