Re: [PATCH v2] mm: Don't fault around userfaultfd-registered regions on reads

[Peter Xu]

On Fri, Dec 04, 2020 at 02:37:17PM -0500, Andrea Arcangeli wrote:
> If we use _UFFD_SWP_UFFD_WP it looks much cleaner to keep it in the
> pte, not in the swp entry, since then you can use the already existing
> methods that only can take in input the pte_t (not the swp_entry_t).

Ah, I see now.  Yes it looks nicer if we don't even need swp_entry_t knowledge
to recognize the special pte.  So I'll try all these ideas and update.  Thanks,

-- 
Peter Xu