Re: nfs4_acl restricts copy_up in overlayfs

[Goldwyn Rodrigues <rgoldwyn@suse.de>]

On 05/31/2018 07:49 PM, Trond Myklebust wrote:
> On Thu, 2018-05-31 at 16:53 -0500, Goldwyn Rodrigues wrote:
>>
>> On 05/31/2018 08:30 AM, Miklos Szeredi wrote:
>>> On Thu, May 31, 2018 at 3:10 PM, Trond Myklebust
>>> <trondmy@hammerspace.com> wrote:
>>>>>
>>>>> I understand.  Ignoring nfs4_acl in overlayfs will have the
>>>>> same
>>>>> result as adding noacl to the underlying NFS mount.
>>
>> Adding noacl in NFS client mount has no affect to nfs4_acl. Only if
>> you
>> add noacl in the underlying filesystem of exported directory in the
>> server does the nfs4_acl go away.
> 
> That would also be specific to Linux servers.

Sorry, I don't have access to other NFS based servers. Does that mean
"noacl" option on NFS client mount has different interpretations for
different NFS servers? Or do you mean that nfs4_acl cannot be disabled
for other type of servers?

> 
> So if that is your final decision, then why not just state in the
> overlayfs manpage that

No, that is not my final decision. Neither is it for me to make. I am
merely trying to find a way to make writes on overlayfs possible with
NFSv4 in the lower layer.


-- 
Goldwyn