Re: [RFC PATCH v5 0/4] add simple copy support

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On 4/13/21 11:26, Javier González wrote:
>>> I believe there is space for extensions to simple copy. But given the
>>> experience with XCOPY, I can imagine that changes will be incremental,
>>> based on very specific use cases.
>>>
>>> I think getting support upstream and bringing deployed cases is a very
>>> good start.
>> Copying data (files) within the controller/subsystem from ns_A to ns_B 
>> using NVMf will reduce network BW and memory BW in the host server.
>>
>> This feature is well known and the use case is well known.
> Definitely.
>

I've a working code for nvmet for simple copy, I'm waiting to resolve
the host interface for REQ_OP_COPY so I can post it with this series.

Let me know if someone wants to collaborate offline on that.

IMHO we first need to sort out the host side interface which is
a challenge for years and it is not that easy to get it right
based on the history.





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