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    SubjectRe: flock and fcntl(F_SETLK)
    > fcntl(F_SETLK) uses the f_op->lock(), so why doesn't flock() have a
    > similar hook in the file system?
    > This inconsistency makes flock() broken when using network file
    > systems that have proper locking (like AFS). How is this supposed to
    > be implemented in network file systems?

    The semantics of flock not locking on network file systems go back to
    SunOS and make some sense. flock() gives you a locking scheme that is
    local and fast, lockf/fcntl locks give you slow but networked NFS locks.


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