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SubjectRe: [RFC][PATCH 0/7] File descriptor labeling
On 5/4/2011 2:19 AM, Roberto Sassu wrote:
> On Wednesday, May 04, 2011 12:58:48 AM Casey Schaufler wrote:
>> On 5/2/2011 1:53 AM, Roberto Sassu wrote:
>> ...
>>>> Right, but what I don't understand is why you can't use existing
>>>> mechanisms to achieve this? NFS manages (mostly).
>>> Please, can you explain better this thought?
>> NFS provides a network "view" of an ext4 (or any type for that matter)
>> filesystem. NFS does not support extended attributes, but there has been
>> ongoing work on that. It seems that if NFS does not require the kind
>> of changes you are requesting you shouldn't either.
> I'm not familiar with NFS, so i cannot answer about this scenario.

NFS provides the historical and prototypical example of a layered
filesystem. If you are implementing a layered filesystem and have
not researched NFS you are missing out on the bulk of the experience
and wisdom on the subject.

> I'm adding in CC also the NFS mantainers and the mailing list so
> that they can express their point of view. The whole thread is
> available at:
> Roberto Sassu

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