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.
