On 29.10.2021 07:51, Hannes Reinecke wrote:
On 10/29/21 2:21 AM, Chaitanya Kulkarni wrote:
On 10/7/21 11:49 PM, Javier González wrote:
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On 06.10.2021 10:33, Bart Van Assche wrote:
On 10/6/21 3:05 AM, Javier González wrote:
I agree that the topic is complex. However, we have not been able to
find a clear path forward in the mailing list.
Hmm ... really? At least Martin Petersen and I consider device mapper
support essential. How about starting from Mikulas' patch series that
supports the device mapper? See also
https://lore.kernel.org/all/alpine.LRH.2.02.2108171630120.30363@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
When we add a new REQ_OP_XXX we need to make sure it will work with
device mapper, so I agree with Bart and Martin.
Starting with Mikulas patches is a right direction as of now..
Thanks for the pointers. We are looking into Mikulas' patch - I agree
that it is a good start.
What do you think about joining the call to talk very specific next
steps to get a patchset that we can start reviewing in detail.
I can do that.
Thanks. I will wait until Chaitanya's reply on his questions. We will
start suggesting some dates then.
I think at this point we need to at least decide on having a first call
focused on how to proceed forward with Mikulas approach ...
Javier, can you please organize a call with people you listed in this
thread earlier ?
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.
I believe this is in essence what we are trying to convey here: a
minimal patchset that enables Simple Copy and the infra around to extend
copy-offload use-cases.
I look forward to hear Keith's ideas around this!
Javier
