The nfs4 attributes supported_attrs and aclsupport should not be static; they
need to depend on the exported filesystem's acl support.  Test the latter by
attempting to get an acl, and adjust the returned attributes apropriately.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>