On 2021/05/19 10:26, Damien Le Moal wrote:
> The dm-zoned target cannot support zoned block devices with zones that
> have a capacity smaller than the zone size (e.g. NVMe zoned namespaces)
> due to the current chunk zone mapping implementation as it is assumed
> that zones and chunks have the same size with all blocks usable.
> If a zoned drive is found to have zones with a capacity different from
> the zone size, fail the target initialization.
>
> Signed-off-by: Damien Le Moal <damien.lemoal@xxxxxxx>
> ---
> drivers/md/dm-zoned-metadata.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/md/dm-zoned-metadata.c b/drivers/md/dm-zoned-metadata.c
> index 039d17b28938..ee4626d08557 100644
> --- a/drivers/md/dm-zoned-metadata.c
> +++ b/drivers/md/dm-zoned-metadata.c
> @@ -1390,6 +1390,13 @@ static int dmz_init_zone(struct blk_zone *blkz, unsigned int num, void *data)
> return -ENXIO;
> }
>
> + /*
> + * Devices that have zones with a capacity smaller than the zone size
> + * (e.g. NVMe zoned namespaces) are not supported.
> + */
> + if (blkz->capacity != blkz->len)
> + return -ENXIO;
> +
> switch (blkz->type) {
> case BLK_ZONE_TYPE_CONVENTIONAL:
> set_bit(DMZ_RND, &zone->flags);
>
Hi Mike,
I just realized that I forgot to add:
Cc: stable@xxxxxxxxxxxxxxx # v5.9+
to this patch.
Should I resend ? Or can you add this tag when applying the patch ?
Thanks !
--
Damien Le Moal
Western Digital Research
--
dm-devel mailing list
dm-devel@xxxxxxxxxx
https://listman.redhat.com/mailman/listinfo/dm-devel
