Re: [PATCH v8 0/9] NFSD support for async COPY

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On Mon, Apr 16, 2018 at 05:45:22PM -0400, J. Bruce Fields wrote:
> On Sat, Apr 14, 2018 at 12:22:02AM -0700, Christoph Hellwig wrote:
> > What is the use case for adding all these crazy complications?
> 
> Is there anything specific that you think is too complicated?
> 
> I know you don't think server-to-server copy offload is worth the
> trouble, but I haven't seen you actually explain why (beyond just that
> it's more complicated).

For one all code is buggy and introduces issues, and code implementing
asynchronous, distributed state machines is even more so.  So a large
chunk of code is a big warning sign.  Especially if it isn't actually
useful to normal users.
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