On Thu, 2018-06-14 at 06:42 -0700, Christoph Hellwig wrote: > On Thu, Jun 14, 2018 at 01:39:50PM +0000, Bart Van Assche wrote: > > On Thu, 2018-06-14 at 10:01 +0000, Damien Le Moal wrote: > > > Applied. Thanks Luis ! > > > > Hello Damien, > > > > Can this still be undone? I agree with Mike that it's wrong to > > invoke > > "/sbin/dmsetup create ... zoned ..." from a udev rule. > > Yes. We'll really need to verfify the device has dm-zoned metadata > first. Preferably including a uuid for stable device naming.
libblkid would be the central hub for metadata discovery, so perhaps a patch should be made to make libblkid dm-zoned-aware. Anyway, as Damien explained, dmzoned bails out if it doesn't find matching meta data, so AFAICS, little harm is done by calling it for a SMR device in host-managed mode. I fail to get the point why this would be wrong in general - what's the difference to e.g. calling "mdadm -I"? Regards Martin -- Dr. Martin Wilck <mwi...@suse.com>, Tel. +49 (0)911 74053 2107 SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg)
