Re: 4.8-rcN nfs, access(W_OK) on an immutable inode

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Trond Myklebust:
> The NFS protocol has no way to convey to the client that the inode is label=
> ed as immutable on the server. The NFSv4.1 =93retention_hold=94 mechanism d=
> escribed in RFC5661 comes close, and could possibly be used, but it is not =
> implemented for now.
>
> Note also that file immutability is not a POSIX concept, and EPERM is conse=
> quently not listed as one of the POSIX sanctioned return values for access(=
> ): http://pubs.opengroup.org/onlinepubs/9699919799/functions/access.html

Ok.
Thanx for the explanation.


J. R. Okajima
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