On Thu, 2013-10-24 at 11:07 -0400, Simo Sorce wrote: +AD4- Because the filesystem can do that when multiple applications are +AD4- involved without having to change them all to talk to each other and +AD4- invent custom protocol all the time just to keep some additional +AD4- metadata associated to a file.. +AD4- It's still a custom protocol. The applications need to agree on a data format and store it somewhere. The portable way to do this is to write an application library that they can link to. -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust+AEA-netapp.com www.netapp.com -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html