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    SubjectRe: NFS locking bug -- limited mtime resolution means nfs_lock() does not provide coherency guarantee
    On Wed, Sep 13, 2000 at 11:51:45AM -0400, Theodore Y. Ts'o wrote:
    >
    > So this is a really stupid question, but I'll ask it anyway. If you
    > just need a cookie, is there any way that you might be able to steal a
    > few bits from i_generation field for that purpose? (This assumes that
    > we only worry about solving the problem for NFS.)

    No, it does not help. i_generation is only in the NFS file handle, but not
    in the fattr/file id this is used for cache checks. The NFS file handle
    has to stay identical anyways, as long as the inode is not deleted/reused.

    -Andi


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