On 2020/04/07 2:29, Hannes Reinecke wrote:
> When looking up zones in dmz_alloc_zone() we need to ignore
> metadata zones so as not to accidentally overwrite metadata.
>
> Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
Reviewed-by: Damien Le Moal <damien.lemoal@xxxxxxx>
> ---
> drivers/md/dm-zoned-metadata.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
> index 6c52cbf290d5..e036ba4bfe57 100644
> --- a/drivers/md/dm-zoned-metadata.c
> +++ b/drivers/md/dm-zoned-metadata.c
> @@ -1910,7 +1910,13 @@ struct dm_zone *dmz_alloc_zone(struct dmz_metadata *zmd, unsigned long flags)
> zone = NULL;
> goto again;
> }
> + if (dmz_is_meta(zone)) {
> + struct dmz_dev *dev = dmz_zone_to_dev(zmd, zone);
>
> + dmz_dev_warn(dev, "Zone %u has metadata", dmz_id(zmd, zone));
> + zone = NULL;
> + goto again;
> + }
> return zone;
> }
>
>
--
Damien Le Moal
Western Digital Research
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/dm-devel
