On Sun, 2012-05-27 at 22:30 -0400, tao.peng@xxxxxxx wrote: > As explain in the other mail, it is necessary to have pnfs_dio_begin/end, so I prefer to do the test as early as possible, which is in pnfs_dio_begin. There is no pnfs_dio_begin/end. -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@xxxxxxxxxx www.netapp.com ��.n��������+%������w��{.n�����{��w���jg��������ݢj����G�������j:+v���w�m������w�������h�����٥