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    SubjectRe: RFC [patch 13/34] PID Virtualization Define new task_pid api
    On Maw, 2006-01-17 at 09:56 -0600, Serge E. Hallyn wrote:
    > The virtual pid is different depending on who is asking. So simply
    > storing current->realpid and current->pid isn't helpful, as we would
    > still need to call a function when a pid crosses user->kernel boundary.

    This is an obscure, weird piece of functionality for some special case
    usages most of which are going to be eliminated by Xen. I don't see the
    kernel side justification for it at all.

    Maybe you should remap it the other side of the user->kernel boundary ?

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