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    SubjectRe: [PATCH] Lightweight userspace semaphores...
    On Wed, Feb 27, 2002 at 10:53:11AM -0500, Hubertus Franke wrote:
    > As stated above, I allocate a kernel object <kulock_t> on demand and
    > hash it. This way I don't have to pin any user address. What does everybody
    > think about the merit of this approach versus the pinning approach?
    > In your case, can the lock be allocated at different
    > virtual addresses in the various address spaces.

    I think this is a relatively important feature. It may not be
    possible to use the same virtual address in different processes.

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