tree 8e3943bfac55b59dc127393f8da0ecfc4aba424b
parent b64e8a5ef758888cb42b7c105dcfaaf51aab1baf
author Trond Myklebust <Trond.Myklebust@netapp.com> 1191180084 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1191964755 -0400

NFS: Fake up 'wcc' attributes to prevent cache invalidation after write

NFSv2 and v4 don't offer weak cache consistency attributes on WRITE calls.
In NFSv3, returning wcc data is optional. In all cases, we want to prevent
the client from invalidating our cached data whenever ->write_done()
attempts to update the inode attributes.

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