Re: [PATCH v2 07/12] s390: add pte_free_defer() for pgtables sharing page

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On Sat, Jul 01, 2023 at 09:32:38PM -0700, Hugh Dickins wrote:
> On Thu, 29 Jun 2023, Hugh Dickins wrote:

Hi Hugh,

...
> No, not quite the same rules as before: I came to realize that using
> list_add_tail() for the HH pages would be liable to put a page on the
> list which forever blocked reuse of PP list_add_tail() pages after it
> (could be solved by a list_move() somewhere, but we have agreed to
> prefer simplicity).

Just to make things more clear for me: do I understand correctly that this
was an attempt to add HH fragments to pgtable_list from pte_free_defer()?

Thanks!



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