tree 595ca70261f46b93bda1998285e5f5c7da684cbc
parent a78cb57a106fceeba26da2907db9d8886700e1dc
author Trond Myklebust <Trond.Myklebust@netapp.com> 1249844779 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1249844779 -0400

NFSv4: Add 'server capability' flags for NFSv4 recommended attributes

If the NFSv4 server doesn't support a POSIX attribute, the generic NFS code
needs to know that, so that it don't keep trying to poll for it.

However, by the same count, if the NFSv4 server does support that
attribute, then we should ensure that the inode metadata is appropriately
labelled as being untrusted. For instance, if we don't know the correct
value of the file's uid, we should certainly not be caching ACLs or ACCESS
results.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>