Trond Myklebust <trond.myklebust@fys.uio.no> wrote:

quoted text
>         - the NFSv4 delegation model breaks: the client will be using
>         OPEN when it could use cached opens. More importantly, when
>         performing an operation that requires it to return the
>         delegation on the aliased file, it won't know until the server
>         sends it a callback.

Perhaps sharing could be the default on NFSv4 and non-sharing for 2 & 3?
After all, NFSv4 is supposed to be able to handle local caching on disk.

David
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