Re: [RFC] problems with alloc_file_pseudo() use in __nfs42_ssc_open()

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On Thu, Aug 18, 2022 at 08:19:54AM +0300, Amir Goldstein wrote:

> NFS spec does not guarantee the safety of the server.
> It's like saying that the Law makes Crime impossible.
> The law needs to be enforced, so if server gets a request
> to COPY from/to an fhandle that resolves as a non-regular file
> (from a rogue or buggy NFS client) the server should return an
> error and not continue to alloc_file_pseudo().

FWIW, my preference would be to have alloc_file_pseudo() reject
directory inodes if it ever gets such.

I'm still not sure that my (and yours, apparently) interpretation
of what Olga said is correct, though.



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