[PATCH 3/4] btrfs: zoned: fail mount if the device does not support zone append

[David Sterba]

On Fri, Apr 16, 2021 at 12:05:27PM +0900, Damien Le Moal wrote:
> From: Johannes Thumshirn <johannes.thumshirn at wdc.com>
> 
> For zoned btrfs, zone append is mandatory to write to a sequential write
> only zone, otherwise parallel writes to the same zone could result in
> unaligned write errors.
> 
> If a zoned block device does not support zone append (e.g. a dm-crypt
> zoned device using a non-NULL IV cypher), fail to mount.
> 
> Signed-off-by: Johannes Thumshirn <johannes.thumshirn at wdc.com>
> Signed-off-by: Damien Le Moal <damien.lemoal at wdc.com>

Added to misc-next, thanks. I'll queue it for 5.13, it's not an urgent
fix for 5.12 release but i'll tag it as stable so it'll apear in 5.12.x
later.