Hi all, When I was reading source codes of ldlm, the term "AST" puzzled me. I think it means callback, but what is its full name? Thanks a lot! Li Xi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.lustre.org/pipermail/lustre-discuss_lists.lustre.org/attachments/20120827/7319ecef/attachment.html>