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56ae10cf62
Commitc33c794828("mm: ptep_get() conversion") converted all (non-arch) call sites to use ptep_get() instead of doing a direct dereference of the pte. Full rationale can be found in that commit's log. Since then, UFFDIO_MOVE has been implemented which does 7 direct pte dereferences. Let's fix those up to use ptep_get(). I've asserted in the past that there is no reliable automated mechanism to catch these; I'm relying on a combination of Coccinelle (which throws up a lot of false positives) and some compiler magic to force a compiler error on dereference. But given the frequency with which new issues are coming up, I'll add it to my todo list to try to find an automated solution. Link: https://lkml.kernel.org/r/20240123141755.3836179-1-ryan.roberts@arm.com Fixes:adef440691("userfaultfd: UFFDIO_MOVE uABI") Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Reviewed-by: Suren Baghdasaryan <surenb@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
1484 lines
39 KiB
1484 lines
39 KiB