Re: [PATCH review 0/7] Bind mount escape fixes

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On Sun, Aug 16, 2015 at 07:55:03AM +0100, Al Viro wrote:

> And umount-related followups are just that - I'm not asking you to do those,
> especially since as I said this stuff is sensitive to fs_pin details (so far
> it appears to fold nicely with the __detach_mounts()/umount_tree() stuff,
> BTW).

PS: it doesn't need namespace_sem taken inside __d_move() - actual
detaching does, of course, but that part gets done via task_work_add(),
in a reasonably sane locking environment.
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