NFS: Invalidate negative dentries on all case insensitive directory changes

If we create a file, rename it, or hardlink it, then we need to assume
that cached negative dentries need to be revalidated.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
1 file changed