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    Subject[PATCH 0/4] pid_ns_prepare_proc/unshare cleanups
    On 06/18, Oleg Nesterov wrote:
    > I only try to discuss the idea to break the circular reference.

    I don't know what I have missed, but this looks really right to me.
    Besides, we have yet another problem: proc_flush_task()->mntput()
    is just wrong. Consider the multithreaded execing init.

    I am going to simplify, test, and send the fix which moves mntput()
    into free_pid_ns() paths.

    But first of all I think we should cleanup the pid_ns_prepare_proc()
    logic. Imho, this code is really ugly. Please see the patches.

    The last one, 4/4, is orthogonal to other changes.


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