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 <[email protected]> > --- > 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: [email protected] # 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 [email protected] https://listman.redhat.com/mailman/listinfo/dm-devel
