| Date | Tue, 8 Nov 2022 10:29:17 +0100 | Subject | Re: [PATCH RFC 00/19] mm/gup: remove FOLL_FORCE usage from drivers (reliable R/O long-term pinning) | From | David Hildenbrand <> |
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On 07.11.22 18:27, Linus Torvalds wrote: > On Mon, Nov 7, 2022 at 8:18 AM David Hildenbrand <david@redhat.com> wrote: >> >> So instead, make R/O long-term pinning work as expected, by breaking COW >> in a COW mapping early, such that we can remove any FOLL_FORCE usage from >> drivers. > > Nothing makes me unhappy from a quick scan through these patches. > > And I'd really love to just have this long saga ended, and FOLL_FORCE > finally relegated to purely ptrace accesses. > > So an enthusiastic Ack from me.
Thanks Linus! My hope is that we can remove it from all drivers and not have to leave it in for some corner cases; so far it looks promising.
-- Thanks,
David / dhildenb
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