Hi Olga, On Mon, Oct 6, 2014 at 9:48 AM, Olga Kornievskaia <olga.kornievskaia@xxxxxxxxx> wrote: > The spec says that open owner needs to be different for different > files yet the code returns the same value. > > It is not clear to me what's broken about ida_get_new() that's used > for generation of the owner ids. > > Can somebody comment on this? > As far as I know, there is no requirement in either NFSv4 or NFSv4.1 that open owners be different for each file. In NFSv4.1 there is a requirement that they be unique to each credential/principal, but only if you negotiate EXCHGID4_FLAG_BIND_PRINC_STATEID. The current choice of scheme where we share open_owners between files was largely motivated by a desire not to overload the NFSv4.0 servers with lots of open_owner structures. In NFSv4.0, those structures are required to be cached by the server for a while after the file has been closed. Cheers Trond -- Trond Myklebust Linux NFS client maintainer, PrimaryData trond.myklebust@xxxxxxxxxxxxxxx -- 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
