On 01/03/2010 20:44, Ed W wrote: > > I believe samba (and probably others) use a two way lock escalation > facility to mitigate a similar problem. So you can "read-lock" or > phrased differently, "express your interest in caching some > files/metadata" and then if someone changes what you are watching the > lock break is pushed to you to invalidate your cache. Seems NFS v4 implements something similar via "delegations" (not believed implemented in linux NFSv4 though...) In samba the equivalent are called "op locks" I guess this would be a great project for someone interested to work on - op-lock translator for gluster Ed W
