[dm-devel] [RFC PATCH 2/2] dm: don't try to split REQ_OP_ZONE_APPEND bios

[Johannes Thumshirn]

On 22/06/2020 02:27, Damien Le Moal wrote:
[...]
> Just to be extra sure, I checked this again. Since for zoned block devices the
> mapping of a target must be zoned aligned and a zone append command is always
> fully contained within a zone, we do not need this check. The stacked limits and
> submit_bio() code will fail a zone append command that is too large or that
> spans zones before we get here.
> 
> That is of course assuming that the target does not expose zones that are mapped
> using multiple chunks from different devices. There is currently no target doing
> that, so this is OK. We can safely drop this patch.

Yeah I think we can drop that one.