On Tue, May 06, 2008 at 10:40:28PM +0930, David Newall wrote: > Bharata B Rao wrote: > > Is dis-allowing NFS-exporting of unions an option ? > > Is it that simple? What about a union further in an NFS export? What > about union-mounting after the tree has been NFS-exported? Ok I am realizing that it is not simple. I am actually reading up NFS code to understand how it supports crossing of mountpoints. I see that one can mount a filesystem within a NFS export and NFS server would be able to cross over to that filesystem and provide those contents to the client. Acutally Union Mount maintains union stack very similar to the mount stack, but here we walk the union stack down. So I am checking if something similar to mountpoint crossing would be able to solve the problem of fetching all the contents of the NFS-exported union. Answering my question to Erez that I raised in another thread, I see that Unionfs doesn't set the export_operations in it's superblock and hence I believe unions created by Unionfs aren't NFS-exportable as of know. Erez, correct me if I got it wrong. Regards, Bharata. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
