[LSF/MM/BFP ATTEND] [LSF/MM/BFP TOPIC] Storage: Copy Offload

[Keith Busch]

On Fri, Oct 29, 2021 at 09:15:43AM -0700, Bart Van Assche wrote:
> On 10/28/21 10:51 PM, Hannes Reinecke wrote:
> > Also Keith presented his work on a simple zone-based remapping block device, which included an in-kernel copy offload facility.
> > Idea is to lift that as a standalone patch such that we can use it a fallback (ie software) implementation if no other copy offload mechanism is available.
> 
> Is a link to the presentation available?

Thanks for the interest.

I didn't post them online as the conference didn't provide it, and I
don't think the slides would be particularly interesting without the
prepared speech anyway.

The presentation described a simple prototype implementing a redirection
table on zone block devices. There was one bullet point explaining how a
generic kernel implementation would be an improvement. For zoned block
devices, an "append" like copy offload would be an even better option.