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/attachments/20120827/7319ecef/attachment.html
Hi, On Mon, Aug 27, 2012 at 12:50:45PM +0800, ?? wrote:> When I was reading source codes of ldlm, the term "AST" puzzled me. I think > it means callback, but what is its full name?Yes, AST (Asynchronous System Trap) means callback. Lustre borrowed this acronym from the VAX Clusters DLM. Cheers, Johann -- Johann Lombardi Whamcloud, Inc. www.whamcloud.com
>When I was reading source codes of ldlm, the term "AST" puzzled me. I think >it means callback, but what is its full name?Asynchronous software trap. If it makes you feel any better, I had to ask as well :-/ I was told the term dates back from VMS. Hm, some quick Googling suggests that it may really mean Asynchronous SYSTEM Trap; it''s possible I misheard or misremember what someone told me. http://en.wikipedia.org/wiki/Asynchronous_System_Trap --Ken