On Fri, 14 Sep 2012 16:20:31 +0200 Lukasz Dorau <lukasz.dorau@xxxxxxxxx>
wrote:
> Inappriopriate error messages (e.g. mdadm: platform does not support
> raid5 with 0 disk) have been displayed when too small size was given.
> This patch fixes it.
>
> Signed-off-by: Lukasz Dorau <lukasz.dorau@xxxxxxxxx>
> ---
> super-intel.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/super-intel.c b/super-intel.c
> index 1d36613..107550f 100644
> --- a/super-intel.c
> +++ b/super-intel.c
> @@ -9744,6 +9744,13 @@ enum imsm_reshape_type imsm_analyze_change(struct supertype *st,
> get_imsm_raid_level(dev->vol.map),
> chunk * 1024,
> geo->size * 2);
> + if (geo->size == 0) {
> + pr_err("Error. Size expansion is " \
> + "supported only (current size is %llu, " \
> + "requested size /rounded/ is 0).\n",
> + current_size);
> + goto analyse_change_exit;
> + }
> }
>
> if ((current_size != geo->size) && (geo->size > 0)) {
Applied, thanks.
NeilBrown
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